The study was conducted on the livelihood approach of fry collectors at Shyamnagar upazila under Satkhira district. The objective of the study was to assess the present livelihood status, to identify the socio-economic condition and problem associated with the alternative livelihood approach of fry collectors. The survey was conducted on three unions of Shyamnagar upazila adjacent to Sundarban as study area. In the study area average family size was 5 persons per family. The maximum age level was 20-30 years old. Among the fry collectors 66% was male and 34% was female. Among them 62% was Muslim and 38% was Hindu. About 78% of total fry collectors are landless in the study area. Literacy was 31% of them where female literacy was 28% and male literacy was 72% and most of them can sign only. Most of the collectors about 63% lived in mud walled with golpata shed house. About 73% families have two earner and 68% have single family. Peak season of fry collection was March to May. For collecting fry they use push net, set bag net mainly. They collect fry in the early morning and in early evening for about 6-8 hours. Men collect 150-200 pieces of fry per day in peak season and 40-60 pieces of fry by women. Price varies from 800-3500 Tk. per thousand golda fry. Price is higher in the month on March-May. About 52% collectors engaged in fishing during off season as alternative income source. Their preferable alternative income source are sustainable agriculture, fry nursing, poultry farming, planned fish cultivation, cattle and goat rearing etc. The main problem of converting of fry collection to other profession was lack of other training of other works, lack of capital, poor infrastructure.facilities, absence of industrialization, lack of land, government and NGO level work is very limited.
Socio-economic uplifting analysis of ESBN fishery of the coastal villages, Ku...AbdullaAlAsif1
The study was conducted in 2 ESBN fishing villages namely Kumira and another is South Kattoli coordinates namely, 22°30'58.9"N and 91°41'37.1"E for Kumira and 22°21'06.6"N and 91°45'. It was found, in 2005 Kattoli and Kumira has largest portion of the 20-30 age group, 55% and 58% respectively and according to survey, in 2018 it was found 30-40 age group is dominant as 50% and 46% of total fisher population. The total family number of the study area is 580 in Kattoli and 550 in Kattoli in 2005 whereas; total family number of the study area is increasing in 2018. There are about 65% Hindu communities and 35% Muslim in Kattoli where Kumira comprises 80 % Hindu (jolodash) and 20% Muslim in 2005 where muslim population is incresasing in 2018. There are significant number of secondary education holder population is increasing in 2018 comparison to 2005. According to study, the total population of Kattoli were 867, out of which about 52% male and 48% female in 2005 and about 57% male and 43% female in 2018. In Kumira village, total population was 670, out of which about 60 % male and 40 % female in 2005 and about 55 % male and 45 % female in 2018. Concrete made building is increasing in 2018 in the study area. Shallow and deep tube well number is also increasing in study area. Use of utility electricity, television, cassette player/radio, VCR/CD player and mobile phone are also increasing in study area. Rich and moderate rich number is increasing in comparison with 2005. Visit to the MBBS doctor trend instead of quack doctor is increasing in study area. Daily meal uptake by thee meal has a increasing trend in the study area. Overall the wealth is increasing in the study area.
Performances of resource poor households in aquaculture practices in sadar up...AbdullaAlAsif1
The present study was conducted to evaluate the performances of resource poor farmers in fish farming at their homestead ponds in Sadar Upazila under Meherpur district from July to October 2015. Participatory Rural Appraisal tools such as questionnaire interview, cross check interview and secondary information were used to assess the performances in aquaculture activities. Thirty pond fish farmers were purposively selected, among them 10, 5, 5, and 10 participants were involved with carp-mola, carp-tilapia and carp-shing polyculture and vietnam koi mono-culture respectively. The result showed that the majority of the farmers (33.33%) had 51-100 decimal cultivable land followed by 20 and 16.67% participants who possessed 151-200 and >300 decimal of land respectively. It was found that the highest percentage of participants (73.33%) primary occupation was agriculture followed by fish farming (3.33%). A majority of the farmers (53.33%) started fish farming only before 1-5 years influenced by the positive result of fish culture by the villagers and 20% each have started before 6-10 and 11-15 years back. Only 6.67% farmers started fish culture in 16 years before who were the pioneers of fish farming in the region. The average pond size in the area was found 15 decimal with a range of 7 to 35. Before starting fish culture all the farmers got training and inputs support for fish culture from a local NGO called Daridra Bimochon Sangstha (DBS). Prior to start fish farming all of the farmers followed standard procedure of pond preparation and fish fry release in their ponds. Majority farmers (90%) applied homemade feed, whereas rest applied commercial feed to their fish. By contrast, 90% farmers used to feed their fish and rest was reluctant to provide feed to the fish. Almost twenty seven percent respondents annual income was between BDT 61,000 to 80,000 followed by 20 and 10% whose income was 100000-150000 and >150000 BDT per year. During the culture operation, farmers usually had some problems such as pond drying, disease outbreak, dike erosion, shade of tree over the ponds, theft, snakes eating the fish etc.
Socio-economic conditions of the fish farmers in Jessore, BangladeshAbdullaAlAsif1
The study was conducted the fish farmers in some selected area at sadar upazila in Jessore under the district of Jessore from September to December 2013. A total of 100 fishermen were selected by stratified random sampling method and interviewed. The average me mbers of single family were 5-6 people per household. Single families were much more (62 %) than joint families. Most of the fish far mers were Muslims 92% and few of them were Hindus 8%Most of them had the secondary educational background and some of them with different levels of higher education. It was found that the number of school going children was 2-3 per house. Full katcha (17 %) houses were few, while the semi-pucca (40%) and pucca (43%) houses were more abundant. Regarding health and sanitation, 31% fishermen reported to suffer fro m gastric and 17% suffered from fever. Most of the interviewees were found to take credit facilities from different sources for the subsistence of their family and their venture. The 98% were found to have their tube-wells, others using Governmental tube-well, or those belonging to schools or neighbors However, they need more institutional, organizational, and technical and credit support for their better socioeconomic and sustainable livelihood.
Marketing channels of mud crab (Scylla serrata) at Nijhum Dwip, Noakhali, Ban...AbdullaAlAsif1
The study was conducted to assess the marketing and value chain of crab from Nijhum Dwip Island in Noakhali region during July 2015 to December 2015. Data were collected through questionnaire interview and tools of participatory rural appraisal such as focus group discussion. The Meghna estuary, tidal rivers and mangroves were the main sources of crab. Local people including the fishermen can collect the crabs and crab lets. The grading system varied depending on sex and size of the crab. The highest average price was found to be 200 BDT/kg for FF1 grade of female while the minimum price was found to be 500 BDT/kg for XXL grade of male. Crabs were mainly available in April, May, June, July, August, September, and October. It was found that 70% crab catchers were from the age group of 12-28 years, which were the main working force in the society. In the study area, 60% of the crab marketers had monthly income of BDT 9,000-20,000, the farmers living conditions were not up to the mark but the survey suggests that most of the crab marketers and exporters increased their income level. If crab fattening can be established, training can be provided, institutional and policy support can be offered to the farmers and good marketing facilities can be developed, crab can be an alternative source of income and sustainable livelihood for the coastal poor people.
Socio-economic condition of fish farmers of Jhikargachha upazila in Jessore d...AbdullaAlAsif1
The present study was conducted to assess the livelihood status of fish farmers and socioeconomic condition in the Jhikargachha upazila, Jessore, Bangladesh. Data were collected from 50 fish farmers for a period of six months from June 2016 to November 2016. The study indicated that 38% of the farmers were in age structure of 50-60 years, 44 farmers (88%) were Muslims and others Hindu (12%). About 82% farmers had a primary occupation of agriculture and others were involved in business (8%), service (4%) and politics (4%). It was found that, 66% farmers had joint family and others lived in separated family (34%). Majority (44 farmers) respondents had concrete house and rest of (6 farmers) had semi-concrete house. Almost (44%) farmers used concrete toilet and rest of farmers used semi-concrete (56%). All the respondents used to drink tube well water for drinking and other household works. Out of 50 fish farmers, 4% had no education (illiterate), 36% had primary education, 42% secondary level (Up to X), 10% S.S.C., 4% H.S.C. and 4% bachelor level of education. In the study area, 32% of the farmers had ponds of 34-66 dec, 28% had pond of 15-33 dec, 14% had ponds of up to 100 dec, 22% had ponds of 101-330 dec and 4% had ponds of 330-above dec. It was found that, 62% farmers had training on fish farming and rest 38% farmers had no training on fish farming. Among 50 farmers 64% farmers were found used to invest their own credit and rest 36% farmers took loan from bank, NGO, money lender and broker agency. Most of the farmers were interested to stock rui, catla and mrigal and other species. In the study area, cow dung was used by 50 (100%) of farmers, 47 farmers used urea, 40 farmers used TSP and 34 farmers used MoP. It was found that, 40% farmers produced fish between 1001 kg – 2000 kg/year and 17 (34%) farmers produced 3001 kg-above/year. The highest income was 3,30,75,000Tk/Year and the lowest income from a pond was 20000 Tk/Year. In the study area, every farmer had at least one mobile phone. Almost 96% farmers were used to go MBBS doctor and only 4% to homeopathic treatment.
Socio-economic status of fish retailers in Jashore sadar, BangladeshAbdullaAlAsif1
The study was conducted to determine the fish retailer's livelihood and socioeconomic status in three markets of Jashore for a period of six months from February to August, 2016. The average net profit of fish retailers was found higher in Boro bazaar (Tk.350) followed by Palbari bazaar (Tk.325), Chuadanga Bus Stand bazaar (TK.275). The average age groups of 20-65 years were found among the markets. The study shows that 53% fish retailers had nuclear family and 47% had joint family. Most of the housing conditions were kacha (69%) and Muslim fish retailers were predominant in all markets. Among the total 45 traders interviewed, 42% were illiterate, 31% have primary level education, 24% have secondary level education and none of them had bachelor level of education. It was found that fish retailers of Boro bazaar and Palbari bazaar sold an average of 35 kg fish daily, compared with Chuadanga Bus Stand bazaar 15 kg per day. The daily supply of fish in Boro bazaar can be estimated at 1.6 MT (25 retailers' × 65 kg) while 0.3 MT (15 retailers × 20 kg) and 0.45 MT (15 retailers × 30 kg) in C.B Bazar and Palbari bazaar respectively. Improvement in basic infrastructure such as, clean water supply, sanitation facilities, adequate drainage and ice facilities are recommended by the present study.
Bio-economic analysis of ESBN fishery of Kumira, the coastal area of Chittago...AbdullaAlAsif1
The present investigation was conducted from May to December 2005 at Kumira, the representative area of Chittagong coast for bio-socioeconomic analysis of ESBN fishery. In catch composition of Kumira, it was observed that finfish occupied 77.03 %, shrimp 19.82 % and crab 3.15 % and the average catch per boat per day were found 16.6 kg in Kumira. The highest total catch per boat per day (50 kg) was found in October at Kumira. The lowest catch was found (2 kg) in August at Kumira. The average total catch per landing center per month was found 14805 kg at Kumira. The average catch per fishermen per day was found 3.39 kg at Kumira and the average cost per boat per month was about 7,813 Tk in the study area. Average sale per month was found over 18,713 Tk in Kumira. During the month July and August most of the fishermen were engaged in Hilsa fishing with the Hilsa gill net resulting the total catch was with ESBN lowest in those months.
The socio-economic status of fishermen community around Junglighat marine fish landing centre was studied. 141 families were interviewed during the present study. Medium families were dominated (48.89%) followed by large (26.67%) while very large families were only 6.66 %. Most of the members of fishermen families (44.44 %) were under the age group of 15 – 34. 89.7% children were attending government schools while, 10.3% were in private schools. The literacy rate was found to be higher (30.68%) and most attended middle school level and 0.5% were graduates. Major religions include Hinduism (54.9 %), Christianism (37.3 %) and Islam (7.8 %). The maximum number of settlers were from Andhra Pradesh (48.3%) followed by Tamil Nadu (38.3%), while the settlers from Kerala (8.4%) and Jharkhand (5%) were the least. Most of the families were found to be residing in semi pucca (asbestos) houses (73.1%) and fewer families (7.7%) were living in kutcha (thatched) houses. Most of the fishermen from Junglighat landing centre (87.1%) were Above Poverty Line (APL) and only (12.9%) lives in Below Poverty Line (BPL) status. 36.17% of the members earn between Rs. 3001 – 4000/- per month and 12.77% between Rs. 4001 – 5000/- per month. Hygienic status of the fishermen population was found to be better and most of the houses were with latrine facilities (97.3%) and only 2.7% were found to be without latrine facilities.
Socio-economic uplifting analysis of ESBN fishery of the coastal villages, Ku...AbdullaAlAsif1
The study was conducted in 2 ESBN fishing villages namely Kumira and another is South Kattoli coordinates namely, 22°30'58.9"N and 91°41'37.1"E for Kumira and 22°21'06.6"N and 91°45'. It was found, in 2005 Kattoli and Kumira has largest portion of the 20-30 age group, 55% and 58% respectively and according to survey, in 2018 it was found 30-40 age group is dominant as 50% and 46% of total fisher population. The total family number of the study area is 580 in Kattoli and 550 in Kattoli in 2005 whereas; total family number of the study area is increasing in 2018. There are about 65% Hindu communities and 35% Muslim in Kattoli where Kumira comprises 80 % Hindu (jolodash) and 20% Muslim in 2005 where muslim population is incresasing in 2018. There are significant number of secondary education holder population is increasing in 2018 comparison to 2005. According to study, the total population of Kattoli were 867, out of which about 52% male and 48% female in 2005 and about 57% male and 43% female in 2018. In Kumira village, total population was 670, out of which about 60 % male and 40 % female in 2005 and about 55 % male and 45 % female in 2018. Concrete made building is increasing in 2018 in the study area. Shallow and deep tube well number is also increasing in study area. Use of utility electricity, television, cassette player/radio, VCR/CD player and mobile phone are also increasing in study area. Rich and moderate rich number is increasing in comparison with 2005. Visit to the MBBS doctor trend instead of quack doctor is increasing in study area. Daily meal uptake by thee meal has a increasing trend in the study area. Overall the wealth is increasing in the study area.
Performances of resource poor households in aquaculture practices in sadar up...AbdullaAlAsif1
The present study was conducted to evaluate the performances of resource poor farmers in fish farming at their homestead ponds in Sadar Upazila under Meherpur district from July to October 2015. Participatory Rural Appraisal tools such as questionnaire interview, cross check interview and secondary information were used to assess the performances in aquaculture activities. Thirty pond fish farmers were purposively selected, among them 10, 5, 5, and 10 participants were involved with carp-mola, carp-tilapia and carp-shing polyculture and vietnam koi mono-culture respectively. The result showed that the majority of the farmers (33.33%) had 51-100 decimal cultivable land followed by 20 and 16.67% participants who possessed 151-200 and >300 decimal of land respectively. It was found that the highest percentage of participants (73.33%) primary occupation was agriculture followed by fish farming (3.33%). A majority of the farmers (53.33%) started fish farming only before 1-5 years influenced by the positive result of fish culture by the villagers and 20% each have started before 6-10 and 11-15 years back. Only 6.67% farmers started fish culture in 16 years before who were the pioneers of fish farming in the region. The average pond size in the area was found 15 decimal with a range of 7 to 35. Before starting fish culture all the farmers got training and inputs support for fish culture from a local NGO called Daridra Bimochon Sangstha (DBS). Prior to start fish farming all of the farmers followed standard procedure of pond preparation and fish fry release in their ponds. Majority farmers (90%) applied homemade feed, whereas rest applied commercial feed to their fish. By contrast, 90% farmers used to feed their fish and rest was reluctant to provide feed to the fish. Almost twenty seven percent respondents annual income was between BDT 61,000 to 80,000 followed by 20 and 10% whose income was 100000-150000 and >150000 BDT per year. During the culture operation, farmers usually had some problems such as pond drying, disease outbreak, dike erosion, shade of tree over the ponds, theft, snakes eating the fish etc.
Socio-economic conditions of the fish farmers in Jessore, BangladeshAbdullaAlAsif1
The study was conducted the fish farmers in some selected area at sadar upazila in Jessore under the district of Jessore from September to December 2013. A total of 100 fishermen were selected by stratified random sampling method and interviewed. The average me mbers of single family were 5-6 people per household. Single families were much more (62 %) than joint families. Most of the fish far mers were Muslims 92% and few of them were Hindus 8%Most of them had the secondary educational background and some of them with different levels of higher education. It was found that the number of school going children was 2-3 per house. Full katcha (17 %) houses were few, while the semi-pucca (40%) and pucca (43%) houses were more abundant. Regarding health and sanitation, 31% fishermen reported to suffer fro m gastric and 17% suffered from fever. Most of the interviewees were found to take credit facilities from different sources for the subsistence of their family and their venture. The 98% were found to have their tube-wells, others using Governmental tube-well, or those belonging to schools or neighbors However, they need more institutional, organizational, and technical and credit support for their better socioeconomic and sustainable livelihood.
Marketing channels of mud crab (Scylla serrata) at Nijhum Dwip, Noakhali, Ban...AbdullaAlAsif1
The study was conducted to assess the marketing and value chain of crab from Nijhum Dwip Island in Noakhali region during July 2015 to December 2015. Data were collected through questionnaire interview and tools of participatory rural appraisal such as focus group discussion. The Meghna estuary, tidal rivers and mangroves were the main sources of crab. Local people including the fishermen can collect the crabs and crab lets. The grading system varied depending on sex and size of the crab. The highest average price was found to be 200 BDT/kg for FF1 grade of female while the minimum price was found to be 500 BDT/kg for XXL grade of male. Crabs were mainly available in April, May, June, July, August, September, and October. It was found that 70% crab catchers were from the age group of 12-28 years, which were the main working force in the society. In the study area, 60% of the crab marketers had monthly income of BDT 9,000-20,000, the farmers living conditions were not up to the mark but the survey suggests that most of the crab marketers and exporters increased their income level. If crab fattening can be established, training can be provided, institutional and policy support can be offered to the farmers and good marketing facilities can be developed, crab can be an alternative source of income and sustainable livelihood for the coastal poor people.
Socio-economic condition of fish farmers of Jhikargachha upazila in Jessore d...AbdullaAlAsif1
The present study was conducted to assess the livelihood status of fish farmers and socioeconomic condition in the Jhikargachha upazila, Jessore, Bangladesh. Data were collected from 50 fish farmers for a period of six months from June 2016 to November 2016. The study indicated that 38% of the farmers were in age structure of 50-60 years, 44 farmers (88%) were Muslims and others Hindu (12%). About 82% farmers had a primary occupation of agriculture and others were involved in business (8%), service (4%) and politics (4%). It was found that, 66% farmers had joint family and others lived in separated family (34%). Majority (44 farmers) respondents had concrete house and rest of (6 farmers) had semi-concrete house. Almost (44%) farmers used concrete toilet and rest of farmers used semi-concrete (56%). All the respondents used to drink tube well water for drinking and other household works. Out of 50 fish farmers, 4% had no education (illiterate), 36% had primary education, 42% secondary level (Up to X), 10% S.S.C., 4% H.S.C. and 4% bachelor level of education. In the study area, 32% of the farmers had ponds of 34-66 dec, 28% had pond of 15-33 dec, 14% had ponds of up to 100 dec, 22% had ponds of 101-330 dec and 4% had ponds of 330-above dec. It was found that, 62% farmers had training on fish farming and rest 38% farmers had no training on fish farming. Among 50 farmers 64% farmers were found used to invest their own credit and rest 36% farmers took loan from bank, NGO, money lender and broker agency. Most of the farmers were interested to stock rui, catla and mrigal and other species. In the study area, cow dung was used by 50 (100%) of farmers, 47 farmers used urea, 40 farmers used TSP and 34 farmers used MoP. It was found that, 40% farmers produced fish between 1001 kg – 2000 kg/year and 17 (34%) farmers produced 3001 kg-above/year. The highest income was 3,30,75,000Tk/Year and the lowest income from a pond was 20000 Tk/Year. In the study area, every farmer had at least one mobile phone. Almost 96% farmers were used to go MBBS doctor and only 4% to homeopathic treatment.
Socio-economic status of fish retailers in Jashore sadar, BangladeshAbdullaAlAsif1
The study was conducted to determine the fish retailer's livelihood and socioeconomic status in three markets of Jashore for a period of six months from February to August, 2016. The average net profit of fish retailers was found higher in Boro bazaar (Tk.350) followed by Palbari bazaar (Tk.325), Chuadanga Bus Stand bazaar (TK.275). The average age groups of 20-65 years were found among the markets. The study shows that 53% fish retailers had nuclear family and 47% had joint family. Most of the housing conditions were kacha (69%) and Muslim fish retailers were predominant in all markets. Among the total 45 traders interviewed, 42% were illiterate, 31% have primary level education, 24% have secondary level education and none of them had bachelor level of education. It was found that fish retailers of Boro bazaar and Palbari bazaar sold an average of 35 kg fish daily, compared with Chuadanga Bus Stand bazaar 15 kg per day. The daily supply of fish in Boro bazaar can be estimated at 1.6 MT (25 retailers' × 65 kg) while 0.3 MT (15 retailers × 20 kg) and 0.45 MT (15 retailers × 30 kg) in C.B Bazar and Palbari bazaar respectively. Improvement in basic infrastructure such as, clean water supply, sanitation facilities, adequate drainage and ice facilities are recommended by the present study.
Bio-economic analysis of ESBN fishery of Kumira, the coastal area of Chittago...AbdullaAlAsif1
The present investigation was conducted from May to December 2005 at Kumira, the representative area of Chittagong coast for bio-socioeconomic analysis of ESBN fishery. In catch composition of Kumira, it was observed that finfish occupied 77.03 %, shrimp 19.82 % and crab 3.15 % and the average catch per boat per day were found 16.6 kg in Kumira. The highest total catch per boat per day (50 kg) was found in October at Kumira. The lowest catch was found (2 kg) in August at Kumira. The average total catch per landing center per month was found 14805 kg at Kumira. The average catch per fishermen per day was found 3.39 kg at Kumira and the average cost per boat per month was about 7,813 Tk in the study area. Average sale per month was found over 18,713 Tk in Kumira. During the month July and August most of the fishermen were engaged in Hilsa fishing with the Hilsa gill net resulting the total catch was with ESBN lowest in those months.
The socio-economic status of fishermen community around Junglighat marine fish landing centre was studied. 141 families were interviewed during the present study. Medium families were dominated (48.89%) followed by large (26.67%) while very large families were only 6.66 %. Most of the members of fishermen families (44.44 %) were under the age group of 15 – 34. 89.7% children were attending government schools while, 10.3% were in private schools. The literacy rate was found to be higher (30.68%) and most attended middle school level and 0.5% were graduates. Major religions include Hinduism (54.9 %), Christianism (37.3 %) and Islam (7.8 %). The maximum number of settlers were from Andhra Pradesh (48.3%) followed by Tamil Nadu (38.3%), while the settlers from Kerala (8.4%) and Jharkhand (5%) were the least. Most of the families were found to be residing in semi pucca (asbestos) houses (73.1%) and fewer families (7.7%) were living in kutcha (thatched) houses. Most of the fishermen from Junglighat landing centre (87.1%) were Above Poverty Line (APL) and only (12.9%) lives in Below Poverty Line (BPL) status. 36.17% of the members earn between Rs. 3001 – 4000/- per month and 12.77% between Rs. 4001 – 5000/- per month. Hygienic status of the fishermen population was found to be better and most of the houses were with latrine facilities (97.3%) and only 2.7% were found to be without latrine facilities.
Socio-economic condition of fish fry and fingerling traders in greater Jessor...AbdullaAlAsif1
The present study was conducted to assess the livelihood status of fish fry and fingerling traders and socioeconomic condition in the greater Jessore, Bangladesh from April 2013 to September 2013. Data were collected through the use of well-structured questionnaire from the selected area. 73% of traders have single family but only 27% have joint family. 45% fish fry and fingerling traders family has four members. 20% family has five members, 14% family has six members, 12% family has three members 9%family has seven to eight members respectively. 92% traders has own bank account but only 7% traders uses their bank account when they trade fry and fingerling. 87% traders have secondary business like rickshaw business, fruit business, cloth business, fish trading etc. Among 300 fish fry and fingerling traders the sanitation facilities are present 100%. It was found that 69% and 31% of fish farmers used semi-pucca and pucca toilet respectively. Among 300 fish fry and fingerling traders 78% of traders have own house but only 22% of trader live in rental house or place. 46% of traders have institutional education that range from primary to higher education and other 54% of traders have no experience in education. In case of illness 58% of traders and trader's family goes to government hospital, 24% uses private clinic, 15% traders are uses local village doctor and another 3% does not get any treatment or not require no treatment. 93% traders have television, 5% house consist radio and another 2% house no instrument for entertainment. Only 10% trader wants their son and grandson engages with this fish fry and fingerling trading profession. The average monthly income of traders in the peak season is 18000 taka and off-peak season the income is less than 7000 taka per month.
Contribution of aquaculture on livelihood development of fish farmer at Noakh...AbdullaAlAsif1
The present study was conducted to assess the contribution of aquaculture on livelihood status of fish farmer at Noakhali sadar upazila. This research work was carried out during the period of February 2013 to July 2013. A total of 50 fish farmers were interviewed with a well-structured questionnaire. The survey revealed that average pond size was 0.48 ha with 40% of the farmers having ponds of single ownership, 20% having ponds of multiple-ownership, 30% having ponds of single lease and 10% having ponds of multiple leases. Poly culture of Indian major carps and exotic carps has been practiced by most of the farmers. Fish fingerlings were stocked from April to June and average stocking density was 12,370 fingerlings/ha. The average fish production cost was Tk 69,870/ha/yr. Although the living condition of the rural fish farmers were poor, livelihood outcomes were found positive and 88% of the farmers have improved their socioeconomic conditions through fish farming. The gross income and net profit were Tk. 1, 06,400 and Tk. 1, 00,000/ha/yr respectively. The average monthly income was in range of BDT 15,000-25,000. Their basic need like food, cloth, house, education and medical facility had changed after fish farming. The households have broadly improved their food consumption, family education, standards of living, purchasing power, choice and economic ability through fish farming. The constraints for sustainable pond fish farming in the areas were lack of technical knowledge of the farmers, disease of fishes, multiple ownership of the pond, higher production cost (mainly seeds and feed), insufficient supply of fry and fingerlings, lack of money and credit facilities and inadequate extension services. It is therefore essential to provide the necessary training facilities with institutional and organizational supports, credit facilities and extension services for sustainable fish production and livelihoods of rural fish farmers.
Attitude of farmers towards Pangas farming for their livelihood improvementAbdullaAlAsif1
The present study was conducted in the selected Malotipur village of Muktagachha upazila under Mymensingh district during 13 to 28 April, 2014. The sample size of the study was 90 fish farmers (43 percent of population) and it was drown from a population of 209 using simple random sampling technique. Eight (8) selected characteristics of farmers viz.: age, level of education, family size, farm size, annual income, credit received, training experience and cosmopoliteness were considered as the independent variables, while the attitude of the farmers towards Pangas farming was the dependent variable of the study. The focus variable i.e. attitude of farmers towards Pangas farming was measured with a 5 point likert scale such as " strongly agree " , " agree " , " undecided " , " disagree " and " strongly disagree " in Pangas farming and the corresponding scores were 5, 4, 3, 2 and 1 respectively. The findings indicated that the majority (50 percent) of the Pangas farmers had moderately favorable attitude towards Pangas farming compared to 31.1 percent having highly favorable and only 18.9 percent had slightly favorable attitude. The finding on problem faced by the farmers related to Pangas farming revealed that about two-third (65.6 percent) of the farmers had high problem followed by 20 percent low problems. Among eight selected characteristics of Pangas farmers five characteristics such as age, level of education; annual income, training experience and cosmopoliteness had significant positive relationships with their attitude towards Pangas farming. On the other hand, the other two characteristics of pangas farmers such as family size and farm size had positive but no significant relationships with their attitude towards Pangas farming.
Constraints and prospects of fish farming in Lalmonirhat districtAbdullaAlAsif1
The present study was conducted to know the constraints and prospects of fish farming in Lalmonirhat district of Bangladesh. The data were collected from 100 fish farmers through questionnaire interview for a period of four months from July 2014 to October 2014. Most of the ponds were perennial (72%) with an average size of 0.41 ha and a depth of 1.69 m. All the fish farmers practiced mostly carp polyculture system using different aquaculture inputs like fertilizer, feed, seed, and chemicals. They were usually found to collect fish seed from neighboring districts, mainly Bogra and Mymensingh. The main constrains were availability of quality seed, lack of scientific and technical knowledge, lack of manpower, outbreak of fish diseases, lack of credit facilities, high price of various inputs, low fish price, theft of fish and poisoning the pond water. Though there were many constraints, the fish production from aquaculture sector was increasing gradually in the study area. The total fish production from aquaculture in 2014 was projected 10,663 MT, while the fish production in 2010 was only 7600.4 MT in Lalmonirhat district. If the constraints could be solved, fish production in the study area would possibly be increased tremendously.
Assessment of sustainability of Pangasius (Pangasius hypophthalmus) farming a...AbdullaAlAsif1
The present study focused on existing status and assessment of sustainability of Pangasius (Pangasius hypophthalmus) farming at Jhikargacha upazila in Jessore district. The research was carried out through questionnaire interview with randomly selected 80 farmers during December 2014 to May 2015. Most of farms (96%) are under polyculture, while only 4% is under monoculture practice. The source of pangasiid fingerlings were fry traders, nearby nursery, local hatchery and large hatchery from Jessore. Fingerlings size varied from 1 to 2 inch with price of TK. 0.5-1/fingerling. Majority of the farmers stocked fingerlings in March to April with average stocking density was 18,700 fingerlings/ha. About 46% of Pangasius farmers have leased ponds and lease value varied from Tk. 1,12,200-1,49,600/ha/yr. The leased ponds were solely used for Pangasius farming. Over 19% of farmers exchanged water one time per year, while 81% never exchanged. Almost all of the Pangasius farmers used supplementary feeds in their farms. Among the farmers, 37% of farmers received general aquaculture training from Bangladesh Fisheries Research Institute (BFRI) and Department of Fisheries (DoF) and some non-government organizations (NGO's). Average pond size was 0.17 ha of which 85% was perennial and 15% was seasonal. Various constraints such as, lack of capital and proper technological knowledge, lack of continuous supply of quality fry, high price of the inputs especially feed, adulteration of feed, inbreeding, improper marketing and management problems were prominent. Some farmers use some unethical feeds in their farms. The highest proportion (41%) of the people was involved in Pangasius farming as main occupation and their age was between 31-40 years. The main reason of converting their ponds and lands for Pangasius farmimg was to get more profit. Large farmers always got higher profit over 2.03 Lac Tk./ha. However, small and medium farmers also got over 1.9 lac Tk. profit per hectare from Pangasius farming. Though the potential of fish farming in Jhikargacha region is mentioned-worthy, it is currently facing a number of problems such as, lack of capital, proper technological knowledge, lack of regular supply of quality fingerlings, improper proportion of protein and supply of adulterate feed, high price of feed, inbreeding, marketing and management problems. If the suggested constraints could be solved, the fish production in Jhikargacha region would possibly be increased tremendously and the pangasius farming would be progressed towards sustainability.
Fry production and its marketing system of North-West fisheries extension pro...AbdullaAlAsif1
In order to understand the present status of hatcheries, questionnaire interview and participatory rural appraisal tools were used in North-west Fisheries Extension Project (NFEP), Parbatipur during the period from July to December 2015. There are two hatcheries in NFEP, Parbatipur- a carp hatchery and a prawn hatchery. The production of spawn was around 611 kg in the year 2015. According to the target hatchery manager collected brood fish from rivers and other sources which he maintained in their brood stock ponds with proper management. The hatchery manager maintained proper age and weight of broods for spawning and followed the guideline of hatchery operation so that the quality of spawn and fry were good. It was found that the hatcheries produced fish seed of a variety of species such as Indian major carps, carpio, sarpunti, silver carp, grass carp, magur, shing as well as freshwater prawn. The hatchery production activities took place starting from February and continued up to September. The quantity of fish seed produce varied from 25 to 75 kg per hatching cycle depending on size and facilities of hatcheries. The price of fry in NFEP was being fixed by the hatchery manager. However, the price variation was seen due to seasonal variation, species and demand. The average price of fish seed was highest in monsoon and lowest in winter. A number of middlemen were involved in the fry marketing channel of NFEP at Parbatipur. They were responsible for increasing the price of fry at each stage of marketing channel.
Status of polyculture Pangasius hypophthalmus with carps in Jhikargacha Upazi...AbdullaAlAsif1
The present study was conducted in Jhikargacha sub-district of Jessore district with the view to evaluating status of polyculture of Pangasius hypophthalmus with carps from July to December 2012. The mean age and experience of the respondents was 41.28±12.19 and 9.48±3.12 years respectively. Culture pond size was 0.41±0.21 ha (0.343 to 0.478 at 95% CL). 67.50% culture ponds were leased ponds and mean yearly lease value was 535364.70±468224.20 BDT/ha. All the ponds were rectangular in shape and perennial in nature. During preparation of pond, all the ponds were dried by draining out the water. Liming was done at 229.30±118.70 kg/ha (pre-stocking) and 250 kg/ha (post-stocking). Application rate of various fertilizers during post stocking management were recorded as- 155.12±79.10 kg/ha (cow dung); 158.27±79.85 kg/ha (urea); and 79.90±42.93 kg/ha (TSP). Five species of fishes were found to be stocked at the rate of 7377 individuals/ha including 93.10% P. hypophthalmus seeds and 6.90% other carps. Supplementary feeding was done daily and the application rates were 444.23±236.41 kg/ha (rice bran), 228.29±116.96 kg/ha (mustard oil cake), and 912.91±468.05 kg/ha (commercial pangus feeds, pellet). Average fish production was found 6672.84 kg/ha. All the fishes grown in the study area were marketed to fish landing centers and markets of three districts- Chuadanga (47.50%), Dhaka (30%) and Jessore (22.50%). The average cost-benefit ratio was 1:1.15. High mortality, low growth of seeds, and high input price were the major problems.
Availability of fish species in fish markets and fish marketing in Noakhali d...AbdullaAlAsif1
The present study was conducted to know the fish markets and marketing practices in Noakhali district for a period of 5 months; November 2014 to March, 2015. Five types of marketing channels were found in this study and most were similar in nature as marketing places were in same town and not far apart. The average cost by a retailer to trade fish was estimated at Tk. 171.6 /day. This cost included rent of trading spot, ice and local transportation. The average income of retailers in three markets was estimated at Tk. 640/day/retailer. It was found that 21% of fish supplied in the markets were carps (Indian and Exotic), 17.3% marine fish, 15.7% hilsa, 12.7% catfish, 11.3% small fish, 11% Tilapia and pungus, 7% others mix species and 4% prawn. It was reported that availability fish species in three different markets round the year ranged from 55 to 72. However, during the study period, a total of 39 fish species under 24 families were found in three markets. It was found that marine fish comprises average 33% and freshwater fish comprises average 67% in the three markets. The price of fish depends on market structure, species quality, size, weight and season. The price of galda and bagda were varied from 580±10 to 560±8 Tk. /kg, and 370±10 to 350±5 Tk. /kg respectively. The price of catla, tilapia, ilish, Thai pangus and silver carp were varied from 390±10 to 360±8 Tk. /kg, 165±5 to 150±8 Tk. /kg, 900±10 to 860±5 Tk. /kg, 140±10 to 125±5 Tk. /kg, and 160±8 to 155±5 Tk./kg, respectively. In Noakhali, around 50-180 retailers were involved in each market. It was found that the daily supply of fish in Municipal market, Datter hat and Sonapur was about 12-13, 7-8 and 2.5-3ton, respectively. Inadequate infrastructure, transportation, shortage of ice in peak season, hygienic condition and packaging facilities were cited as main constraints. It was found that 80% of the fish retailers have improved their livelihood status through fish trading to a certain degree.
Tilapia (Oreochromis mossambicus) marketing system in greater Jessore region,...AbdullaAlAsif1
The study was carried out to access on the present status of Tilapia (Oreochromis mossambicus) marketing in Jessore sadar in Jessore district. Study period was carried out during June 2013 to December 2013. For the market survey, two important fish markets in Jessore town, namely Boro Bazaar and Rail-station Bazaar Similarly, two important local fish markets in the Jessore Sadar namely Churamonkati Bazaar and Ambot-tola Bazaar were selected to carry out comparative studies of tilapia marketing between town and local markets. A total of 80 traders were interviewed in Local and Town markets, 40 in each area. In the study area 55% of harvested tilapias are sold to the local agents, while the rest (45%) are sold to the suppliers and about 60% of tilapias are transported to the boro bazaar. The rest (40%) of the tilapia, which are under-sized, are transported to nearby local markets. The average farm-gate prices of tilapia varied between Tk 55 and Tk 85 per kg. According to the survey, a wholesaler typically operates with capital of around Tk 11,968 per day, ranging from Tk 8,350 to Tk 27,125 per day. According to the survey, 70% of wholesalers used their own money for fish marketing including tilapia, while the rest (30%) received loans. In the study area tilapia comes from Jhenidah, Satkhira, Jessore then it is supplied to Boro Bazar to wholesaler then it is distributed towards local market. Around 20 to 25 individuals are associated with fish trading including tilapia, except for Boro Bazaar which is larger. The total average marketing costs from producers to consumers was calculated to be Tk 13.02 per kg of tilapia which is sub-divided into: primary market – Tk 3.25 (25%), secondary market – Tk 4.75 (36%), and retail market – Tk 5.02 (39%). In the study area, tilapia prices are generally lower between September and December, rising during the following four to five months. The highest average marketing margin and profit per kilogram of tilapia was found in secondary market, followed by retail and primary market. The proportion of respondents identifying poor road and transport facilities was 24%. Only 20% and 12% of traders identified lack of money for this business. In case of socio economic condition traders 25% has earthen house and 65% has Pucca house and 10% has Semi pucca house. In the study area about 35% traders goes to the MBBS and rest of 65% is goes to the quack or non trained doctor. Traders has earthen toilet of 27%, Pucca toilet is 50% and Semi pucca is 23%. All traders have education at some level, which implies that the reported literacy rate is 83%. Most traders were quite young, with an average age estimated at 36 with a range from 23 to 57. The average family size of tilapia traders was estimated at 5.5 in a single family.
Shrimp disease investigation and culture strategies in Bagerhat district, Ban...AbdullaAlAsif1
The present study was conducted in three upazilla (Bagerhatsadar, Fakirhat and Rampaul) to investigate the shrimp diseases and culture strategies of Bagerhat district in 2012. Post larvae (PL-13/21) from hatchery and natural were used to stock in the study area. The highest mean stocking density was recorded in the ghers of Rampaul (16796±7729.69 PL/ha), where the maximum survival rate was also found (63.00±11.52 %). The highest dose of lime was recorded as 302.58±50.92 kg/ha at Bagerhat sadar; cowdung was recorded as 605.16±118.46 kg/ha at Fakirhat upazilla and urea was recorded as 29.02±5.84 kg/ha (Bagerhat sadar) respectively. The maximum doses of MP and TSP were recorded as 34.58±4.51 kg/ha at Bagerhat sadar and Fakirhat and 27.79±3.71 kg/ha at Bagerhat sadar respectively. No supplementary feed were fed to shrimp, in where culture dependent on natural foods. The highest shrimp production was found in Fakirhat upazila (667±307.05 kg/ha) and the lowest production was in Rampaul upazilla (497±268.97 kg/ha). Sudden change of pH , low dissolved o2 levels, salinity variations, nutritional deficiency and other environmental changes causes yellow head viral disease (YHD), white spot syndrome viral (WSSV), vibriosis, fusarium and protozoan were recorded during the experimental period.
Fisheries and aquaculture sectors in Bangladesh: an overview of the present s...Premier Publishers
Fisheries sector in Bangladesh represents as one of the most productive and dynamic sectors in the country. This sector plays a significant role in food security, employment, and foreign exchange earnings in the economy. At present agricultural transformation is taking place in Bangladesh. With the changes of farming system, farmers have started to shift their crop land to aquaculture as they considered it more profitable compared to rice production. The production of inland fisheries represents an increasing trend since 1989-90 with a growth rate of around 5-7%. Similarly, marine fisheries have also shown an increasing trend while a fluctuated growth rate has emerged in this sub sector. The fisheries sector in the 21st century is facing the challenges of food security for the increasing population, habitat degradation, urbanization, and industrial development. Development of responsible fisheries management and optimal use of water bodies can address those challenges. Since fishery is a productive growth sector in Bangladesh, it has high potential to contribute in the socioeconomic development of the country.
Exchange Rate of Fishermen Business Fishing in Kalinaun Village, East Likupan...AI Publications
Kalinaun Village is one of the villages located in East Likupang District, North Minahasa Regency, North Sulawesi, Indonesia. Fisherman. The analysis used in this research is a descriptive quantitative analysis and descriptive qualitative. The economic situation in the form of fishing rods owned by fishermen in Kalinaun village is their own. The initial capital of Rp. 10,000,000 – Rp. 15,000,000 with a percentage of 80 %. the largest investment cost spent on the purchase of a rainbow boat was Rp. 7,500,000, - with a percentage of 70.09% of the total investment cost and the smallest cost for the purchase of a catinting machine was Rp. 3,200,000, - with a percentage of 29.91%. Fishermen go to sea also vary between 1 – 6 times a week, but on average 4 times a week go to sea. Their income as fishermen is only Rp. 48,000,000 in a year. The profit rate in a year is Rp. 41.930.000, - is the profit earned and can be used for saving or making/procuring new fishing units. The caught fish are marketed to the Girian Village or some consumers come to the fish landing site/beside the beach.
Analysis of Living Stages of Traditional Fishermen in Belang District Southea...AI Publications
The purposive of this study, namely to find out how much and what are the sources of income for traditional fishermen's families in Belang District, and the expenses of traditional fishermen's families in Belang District is, te last step is to find out how the standard of living of traditional fishermen's families in Belang District is. The Method used in this research is a survey method. The population in this study are traditional fishermen in Belang District. The data collection method used is Sampling . The sampling method is using a quataed Multi-Stages Purposive Sampling, with the number of sample villages being 15 villages and the sample fishermen taken are fishermen with fishing rods and nets as much as 10% of the total population in each sample village. The data collected consists of primary data and secondary data. Primary data was collected through observation and interviews guided by questionnaires. Secondary data were obtained from the Belang District of office and related to this research. The data analysis used is descriptive qualitative and quantitative analysis. The standard of living of traditional fishing families is analyzed using the Engel index. Based on the results of the analysis, it is known that the income of traditional fishermen's families in Belang District comes from their main job as fishermen, side jobs outside the field of fisheries. The total incomes of traditional fishermen's families in Belang District on average for one year is Rp.53,394,000. There are 2 types of expenditures for traditional fishermen's families in Belang District, namely expenditures for food and expenditures for non-food such as clothing, housing, health, education, electricity, transportation and others. The total average expenditure for one year is Rp. 53,394,000, which is divided into expenditures for food needs of Rp. 32,284,500 and expenditures for non-food needs which are Rp. 21,109,500. The results of the analysis of the Engel index are 60 0.46% , meaning that the total income of traditional fishermen in Belang District is 60.46% used to meet food needs only. The proportion for food, which is 39,54 % . This is indicates that the standard of living of traditional fishermen in Belang District is still relatively low because more than half of their income is only sufficient to meet food needs.
Aquaculture facilities used by farmers in Barangay Day-asan, Surigao City, Ph...Open Access Research Paper
The purpose of the study was to determine the aquaculture facilities used by the fish farmers in Barangay Day-asan, Surigao City, Philippines, and its effect to the fish farm production. This study utilized a survey questionnaire administered to aquaculture operators in the study area. The respondents were randomly selected, and data were collected through personal interviews and ocular inspections of the facilities. The collected data were analyzed using Statistical Package for Social Sciences (SPSS). The results showed that aquaculture farming in the study area was predominantly carried out by males. A significant proportion of older individuals above 50 years old remained active in the industry. The majority of the respondents were married, indicating that fish farming was often pursued as a livelihood activity within families. Practical experience and traditional methods played a significant role in fish farming practices, as many respondents had lower levels of formal education. Most of the fish farmers were full-time and engaged in intensive aquaculture, particularly in lobster culture. The farmers’ choice of fish species was not significantly influenced by their years of farming experience, but their management options were significantly affected by their experience. The type of culture facility used did not significantly impact fish farm production, suggesting that similar production levels could be achieved with different facility choices.
Economics of fish production in paddy fields in BangladeshAbdullaAlAsif1
This study was conducted to assess profitability of fish production in paddy fields in the village of Kunia and Chandora, under Gacha union in Gazipur sadar upazila in Gazipur district. Primary data were collected from 15 fish farmers for the study during the period from June to November, 2016. Production performance of three stocking package were compared. CFP-1 package contained Thai sarpunti (24700/ha) + Tilapia (6175/ha); CFP-2 comprised of Thai sarpunti (24700/ha) + Common carp (6175/ha); while CFP-3 was represented by Thai sarpunti (24700/ha) + (Tilapia (6175/ha) + Common carp (6175/ha). Both tabular and functional analyses were used to achieve the objectives of the study. Fish productions in paddy fields are profitable business. The total cost of fish production under three selected stocking plans such as CFP-1, CFP-2 and CFP-3 were estimated to be Tk. 73085, Tk. 83459 and Tk. 86928 per ha, respectively. The corresponding total gross return (Tk./ha) were Tk. 209777, Tk. 274170 and Tk. 262721, respectively. The benefit cost ratio (BCR) was estimated to be 2.87, 3.28 and 3.02 for package-1, package-2 and package-3, respectively. Returns over per taka investment (NR/Tk.) were found to be 1.32, 1.69 and 1.42 for the above fish culture packages. Cobb-Douglas production function analysis indicated the positive contribution of fish fingerlings, fertilizer, fish feed and lime on the total income and farm productivity, while human labor and bank interest rate decreased the farm income. The values of R2 were 0.775, 0.739 and 0.812 for CFP-1, CFP-2 and CFP-3, respectively. About 77.5 percent, 73.9 percent and 81.2 percent of variation in yield and gross return of fish production in paddy fields could be explained by the multiple regression equations. Fish production in paddy fields are economically profitable, viable and environment friendly. The farmers may undertake fish culture in paddy fields if suitable paddy fields are available.
Socio-Economic Characterization of Local Guinea Fowl (Numida meleagris) Populations in three Agro-Ecological Zones of Burkina Faso
http://dx.doi.org/10.21276/SSR-IIJLS.2019.5.2.6
Unlocking the mysteries of reproduction: Exploring fecundity and gonadosomati...AbdullaAlAsif1
The pygmy halfbeak Dermogenys colletei, is known for its viviparous nature, this presents an intriguing case of relatively low fecundity, raising questions about potential compensatory reproductive strategies employed by this species. Our study delves into the examination of fecundity and the Gonadosomatic Index (GSI) in the Pygmy Halfbeak, D. colletei (Meisner, 2001), an intriguing viviparous fish indigenous to Sarawak, Borneo. We hypothesize that the Pygmy halfbeak, D. colletei, may exhibit unique reproductive adaptations to offset its low fecundity, thus enhancing its survival and fitness. To address this, we conducted a comprehensive study utilizing 28 mature female specimens of D. colletei, carefully measuring fecundity and GSI to shed light on the reproductive adaptations of this species. Our findings reveal that D. colletei indeed exhibits low fecundity, with a mean of 16.76 ± 2.01, and a mean GSI of 12.83 ± 1.27, providing crucial insights into the reproductive mechanisms at play in this species. These results underscore the existence of unique reproductive strategies in D. colletei, enabling its adaptation and persistence in Borneo's diverse aquatic ecosystems, and call for further ecological research to elucidate these mechanisms. This study lends to a better understanding of viviparous fish in Borneo and contributes to the broader field of aquatic ecology, enhancing our knowledge of species adaptations to unique ecological challenges.
Fish to finance: unraveling the economic threads of Bangladesh’s Blue EconomyAbdullaAlAsif1
Bangladesh, with its extensive river network, vast coastlines, and rich maritime heritage, stands at the crossroads of a transformative Blue Economy. This comprehensive review explores the rich tapestry of Bangladesh's maritime journey. Commencing with a historical lens, it traces the nation's roots in fisheries, showcasing its transformation into a diversified and dynamic Blue Economy. The significance of this transition unfolds across the review, underscoring the sector's contributions to GDP, employment, and food security, while candidly addressing challenges such as overfishing and environmental impact. This work not only chronicles historical milestones but distills valuable lessons from both successes and setbacks, offering a nuanced understanding of the economic resilience embedded in Bangladesh's fisheries sector. Beyond a historical retrospective, the review navigates through the contemporary landscape, emphasizing diversification beyond fisheries. It illuminates economic opportunities in maritime trade, explores non-fish marine resources, and delves into the transformative role of aquaculture. The policy framework governing Bangladesh's Blue Economy comes into focus, dissecting government strategies, legal landscapes, and international collaborations. The review also champions environmental sustainability, highlighting the impact of Blue Economy activities on marine ecosystems and advocating for conservation measures, thus positioning Bangladesh as a steward of its rich maritime heritage. Financial mechanisms and investments emerge as pivotal elements, shaping the trajectory of Blue Economy projects, as evidenced by case studies that weave success stories and lessons learned into the narrative. Concluding with a forward-looking perspective, the study identifies emerging trends, growth opportunities, and strategies to tackle challenges, offering a comprehensive roadmap for sustainable development. In weaving together economic vibrancy, environmental stewardship, and future aspirations, this review illuminates Bangladesh's maritime odyssey as a beacon for the global Blue Economy community.
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Socio-economic condition of fish fry and fingerling traders in greater Jessor...AbdullaAlAsif1
The present study was conducted to assess the livelihood status of fish fry and fingerling traders and socioeconomic condition in the greater Jessore, Bangladesh from April 2013 to September 2013. Data were collected through the use of well-structured questionnaire from the selected area. 73% of traders have single family but only 27% have joint family. 45% fish fry and fingerling traders family has four members. 20% family has five members, 14% family has six members, 12% family has three members 9%family has seven to eight members respectively. 92% traders has own bank account but only 7% traders uses their bank account when they trade fry and fingerling. 87% traders have secondary business like rickshaw business, fruit business, cloth business, fish trading etc. Among 300 fish fry and fingerling traders the sanitation facilities are present 100%. It was found that 69% and 31% of fish farmers used semi-pucca and pucca toilet respectively. Among 300 fish fry and fingerling traders 78% of traders have own house but only 22% of trader live in rental house or place. 46% of traders have institutional education that range from primary to higher education and other 54% of traders have no experience in education. In case of illness 58% of traders and trader's family goes to government hospital, 24% uses private clinic, 15% traders are uses local village doctor and another 3% does not get any treatment or not require no treatment. 93% traders have television, 5% house consist radio and another 2% house no instrument for entertainment. Only 10% trader wants their son and grandson engages with this fish fry and fingerling trading profession. The average monthly income of traders in the peak season is 18000 taka and off-peak season the income is less than 7000 taka per month.
Contribution of aquaculture on livelihood development of fish farmer at Noakh...AbdullaAlAsif1
The present study was conducted to assess the contribution of aquaculture on livelihood status of fish farmer at Noakhali sadar upazila. This research work was carried out during the period of February 2013 to July 2013. A total of 50 fish farmers were interviewed with a well-structured questionnaire. The survey revealed that average pond size was 0.48 ha with 40% of the farmers having ponds of single ownership, 20% having ponds of multiple-ownership, 30% having ponds of single lease and 10% having ponds of multiple leases. Poly culture of Indian major carps and exotic carps has been practiced by most of the farmers. Fish fingerlings were stocked from April to June and average stocking density was 12,370 fingerlings/ha. The average fish production cost was Tk 69,870/ha/yr. Although the living condition of the rural fish farmers were poor, livelihood outcomes were found positive and 88% of the farmers have improved their socioeconomic conditions through fish farming. The gross income and net profit were Tk. 1, 06,400 and Tk. 1, 00,000/ha/yr respectively. The average monthly income was in range of BDT 15,000-25,000. Their basic need like food, cloth, house, education and medical facility had changed after fish farming. The households have broadly improved their food consumption, family education, standards of living, purchasing power, choice and economic ability through fish farming. The constraints for sustainable pond fish farming in the areas were lack of technical knowledge of the farmers, disease of fishes, multiple ownership of the pond, higher production cost (mainly seeds and feed), insufficient supply of fry and fingerlings, lack of money and credit facilities and inadequate extension services. It is therefore essential to provide the necessary training facilities with institutional and organizational supports, credit facilities and extension services for sustainable fish production and livelihoods of rural fish farmers.
Attitude of farmers towards Pangas farming for their livelihood improvementAbdullaAlAsif1
The present study was conducted in the selected Malotipur village of Muktagachha upazila under Mymensingh district during 13 to 28 April, 2014. The sample size of the study was 90 fish farmers (43 percent of population) and it was drown from a population of 209 using simple random sampling technique. Eight (8) selected characteristics of farmers viz.: age, level of education, family size, farm size, annual income, credit received, training experience and cosmopoliteness were considered as the independent variables, while the attitude of the farmers towards Pangas farming was the dependent variable of the study. The focus variable i.e. attitude of farmers towards Pangas farming was measured with a 5 point likert scale such as " strongly agree " , " agree " , " undecided " , " disagree " and " strongly disagree " in Pangas farming and the corresponding scores were 5, 4, 3, 2 and 1 respectively. The findings indicated that the majority (50 percent) of the Pangas farmers had moderately favorable attitude towards Pangas farming compared to 31.1 percent having highly favorable and only 18.9 percent had slightly favorable attitude. The finding on problem faced by the farmers related to Pangas farming revealed that about two-third (65.6 percent) of the farmers had high problem followed by 20 percent low problems. Among eight selected characteristics of Pangas farmers five characteristics such as age, level of education; annual income, training experience and cosmopoliteness had significant positive relationships with their attitude towards Pangas farming. On the other hand, the other two characteristics of pangas farmers such as family size and farm size had positive but no significant relationships with their attitude towards Pangas farming.
Constraints and prospects of fish farming in Lalmonirhat districtAbdullaAlAsif1
The present study was conducted to know the constraints and prospects of fish farming in Lalmonirhat district of Bangladesh. The data were collected from 100 fish farmers through questionnaire interview for a period of four months from July 2014 to October 2014. Most of the ponds were perennial (72%) with an average size of 0.41 ha and a depth of 1.69 m. All the fish farmers practiced mostly carp polyculture system using different aquaculture inputs like fertilizer, feed, seed, and chemicals. They were usually found to collect fish seed from neighboring districts, mainly Bogra and Mymensingh. The main constrains were availability of quality seed, lack of scientific and technical knowledge, lack of manpower, outbreak of fish diseases, lack of credit facilities, high price of various inputs, low fish price, theft of fish and poisoning the pond water. Though there were many constraints, the fish production from aquaculture sector was increasing gradually in the study area. The total fish production from aquaculture in 2014 was projected 10,663 MT, while the fish production in 2010 was only 7600.4 MT in Lalmonirhat district. If the constraints could be solved, fish production in the study area would possibly be increased tremendously.
Assessment of sustainability of Pangasius (Pangasius hypophthalmus) farming a...AbdullaAlAsif1
The present study focused on existing status and assessment of sustainability of Pangasius (Pangasius hypophthalmus) farming at Jhikargacha upazila in Jessore district. The research was carried out through questionnaire interview with randomly selected 80 farmers during December 2014 to May 2015. Most of farms (96%) are under polyculture, while only 4% is under monoculture practice. The source of pangasiid fingerlings were fry traders, nearby nursery, local hatchery and large hatchery from Jessore. Fingerlings size varied from 1 to 2 inch with price of TK. 0.5-1/fingerling. Majority of the farmers stocked fingerlings in March to April with average stocking density was 18,700 fingerlings/ha. About 46% of Pangasius farmers have leased ponds and lease value varied from Tk. 1,12,200-1,49,600/ha/yr. The leased ponds were solely used for Pangasius farming. Over 19% of farmers exchanged water one time per year, while 81% never exchanged. Almost all of the Pangasius farmers used supplementary feeds in their farms. Among the farmers, 37% of farmers received general aquaculture training from Bangladesh Fisheries Research Institute (BFRI) and Department of Fisheries (DoF) and some non-government organizations (NGO's). Average pond size was 0.17 ha of which 85% was perennial and 15% was seasonal. Various constraints such as, lack of capital and proper technological knowledge, lack of continuous supply of quality fry, high price of the inputs especially feed, adulteration of feed, inbreeding, improper marketing and management problems were prominent. Some farmers use some unethical feeds in their farms. The highest proportion (41%) of the people was involved in Pangasius farming as main occupation and their age was between 31-40 years. The main reason of converting their ponds and lands for Pangasius farmimg was to get more profit. Large farmers always got higher profit over 2.03 Lac Tk./ha. However, small and medium farmers also got over 1.9 lac Tk. profit per hectare from Pangasius farming. Though the potential of fish farming in Jhikargacha region is mentioned-worthy, it is currently facing a number of problems such as, lack of capital, proper technological knowledge, lack of regular supply of quality fingerlings, improper proportion of protein and supply of adulterate feed, high price of feed, inbreeding, marketing and management problems. If the suggested constraints could be solved, the fish production in Jhikargacha region would possibly be increased tremendously and the pangasius farming would be progressed towards sustainability.
Fry production and its marketing system of North-West fisheries extension pro...AbdullaAlAsif1
In order to understand the present status of hatcheries, questionnaire interview and participatory rural appraisal tools were used in North-west Fisheries Extension Project (NFEP), Parbatipur during the period from July to December 2015. There are two hatcheries in NFEP, Parbatipur- a carp hatchery and a prawn hatchery. The production of spawn was around 611 kg in the year 2015. According to the target hatchery manager collected brood fish from rivers and other sources which he maintained in their brood stock ponds with proper management. The hatchery manager maintained proper age and weight of broods for spawning and followed the guideline of hatchery operation so that the quality of spawn and fry were good. It was found that the hatcheries produced fish seed of a variety of species such as Indian major carps, carpio, sarpunti, silver carp, grass carp, magur, shing as well as freshwater prawn. The hatchery production activities took place starting from February and continued up to September. The quantity of fish seed produce varied from 25 to 75 kg per hatching cycle depending on size and facilities of hatcheries. The price of fry in NFEP was being fixed by the hatchery manager. However, the price variation was seen due to seasonal variation, species and demand. The average price of fish seed was highest in monsoon and lowest in winter. A number of middlemen were involved in the fry marketing channel of NFEP at Parbatipur. They were responsible for increasing the price of fry at each stage of marketing channel.
Status of polyculture Pangasius hypophthalmus with carps in Jhikargacha Upazi...AbdullaAlAsif1
The present study was conducted in Jhikargacha sub-district of Jessore district with the view to evaluating status of polyculture of Pangasius hypophthalmus with carps from July to December 2012. The mean age and experience of the respondents was 41.28±12.19 and 9.48±3.12 years respectively. Culture pond size was 0.41±0.21 ha (0.343 to 0.478 at 95% CL). 67.50% culture ponds were leased ponds and mean yearly lease value was 535364.70±468224.20 BDT/ha. All the ponds were rectangular in shape and perennial in nature. During preparation of pond, all the ponds were dried by draining out the water. Liming was done at 229.30±118.70 kg/ha (pre-stocking) and 250 kg/ha (post-stocking). Application rate of various fertilizers during post stocking management were recorded as- 155.12±79.10 kg/ha (cow dung); 158.27±79.85 kg/ha (urea); and 79.90±42.93 kg/ha (TSP). Five species of fishes were found to be stocked at the rate of 7377 individuals/ha including 93.10% P. hypophthalmus seeds and 6.90% other carps. Supplementary feeding was done daily and the application rates were 444.23±236.41 kg/ha (rice bran), 228.29±116.96 kg/ha (mustard oil cake), and 912.91±468.05 kg/ha (commercial pangus feeds, pellet). Average fish production was found 6672.84 kg/ha. All the fishes grown in the study area were marketed to fish landing centers and markets of three districts- Chuadanga (47.50%), Dhaka (30%) and Jessore (22.50%). The average cost-benefit ratio was 1:1.15. High mortality, low growth of seeds, and high input price were the major problems.
Availability of fish species in fish markets and fish marketing in Noakhali d...AbdullaAlAsif1
The present study was conducted to know the fish markets and marketing practices in Noakhali district for a period of 5 months; November 2014 to March, 2015. Five types of marketing channels were found in this study and most were similar in nature as marketing places were in same town and not far apart. The average cost by a retailer to trade fish was estimated at Tk. 171.6 /day. This cost included rent of trading spot, ice and local transportation. The average income of retailers in three markets was estimated at Tk. 640/day/retailer. It was found that 21% of fish supplied in the markets were carps (Indian and Exotic), 17.3% marine fish, 15.7% hilsa, 12.7% catfish, 11.3% small fish, 11% Tilapia and pungus, 7% others mix species and 4% prawn. It was reported that availability fish species in three different markets round the year ranged from 55 to 72. However, during the study period, a total of 39 fish species under 24 families were found in three markets. It was found that marine fish comprises average 33% and freshwater fish comprises average 67% in the three markets. The price of fish depends on market structure, species quality, size, weight and season. The price of galda and bagda were varied from 580±10 to 560±8 Tk. /kg, and 370±10 to 350±5 Tk. /kg respectively. The price of catla, tilapia, ilish, Thai pangus and silver carp were varied from 390±10 to 360±8 Tk. /kg, 165±5 to 150±8 Tk. /kg, 900±10 to 860±5 Tk. /kg, 140±10 to 125±5 Tk. /kg, and 160±8 to 155±5 Tk./kg, respectively. In Noakhali, around 50-180 retailers were involved in each market. It was found that the daily supply of fish in Municipal market, Datter hat and Sonapur was about 12-13, 7-8 and 2.5-3ton, respectively. Inadequate infrastructure, transportation, shortage of ice in peak season, hygienic condition and packaging facilities were cited as main constraints. It was found that 80% of the fish retailers have improved their livelihood status through fish trading to a certain degree.
Tilapia (Oreochromis mossambicus) marketing system in greater Jessore region,...AbdullaAlAsif1
The study was carried out to access on the present status of Tilapia (Oreochromis mossambicus) marketing in Jessore sadar in Jessore district. Study period was carried out during June 2013 to December 2013. For the market survey, two important fish markets in Jessore town, namely Boro Bazaar and Rail-station Bazaar Similarly, two important local fish markets in the Jessore Sadar namely Churamonkati Bazaar and Ambot-tola Bazaar were selected to carry out comparative studies of tilapia marketing between town and local markets. A total of 80 traders were interviewed in Local and Town markets, 40 in each area. In the study area 55% of harvested tilapias are sold to the local agents, while the rest (45%) are sold to the suppliers and about 60% of tilapias are transported to the boro bazaar. The rest (40%) of the tilapia, which are under-sized, are transported to nearby local markets. The average farm-gate prices of tilapia varied between Tk 55 and Tk 85 per kg. According to the survey, a wholesaler typically operates with capital of around Tk 11,968 per day, ranging from Tk 8,350 to Tk 27,125 per day. According to the survey, 70% of wholesalers used their own money for fish marketing including tilapia, while the rest (30%) received loans. In the study area tilapia comes from Jhenidah, Satkhira, Jessore then it is supplied to Boro Bazar to wholesaler then it is distributed towards local market. Around 20 to 25 individuals are associated with fish trading including tilapia, except for Boro Bazaar which is larger. The total average marketing costs from producers to consumers was calculated to be Tk 13.02 per kg of tilapia which is sub-divided into: primary market – Tk 3.25 (25%), secondary market – Tk 4.75 (36%), and retail market – Tk 5.02 (39%). In the study area, tilapia prices are generally lower between September and December, rising during the following four to five months. The highest average marketing margin and profit per kilogram of tilapia was found in secondary market, followed by retail and primary market. The proportion of respondents identifying poor road and transport facilities was 24%. Only 20% and 12% of traders identified lack of money for this business. In case of socio economic condition traders 25% has earthen house and 65% has Pucca house and 10% has Semi pucca house. In the study area about 35% traders goes to the MBBS and rest of 65% is goes to the quack or non trained doctor. Traders has earthen toilet of 27%, Pucca toilet is 50% and Semi pucca is 23%. All traders have education at some level, which implies that the reported literacy rate is 83%. Most traders were quite young, with an average age estimated at 36 with a range from 23 to 57. The average family size of tilapia traders was estimated at 5.5 in a single family.
Shrimp disease investigation and culture strategies in Bagerhat district, Ban...AbdullaAlAsif1
The present study was conducted in three upazilla (Bagerhatsadar, Fakirhat and Rampaul) to investigate the shrimp diseases and culture strategies of Bagerhat district in 2012. Post larvae (PL-13/21) from hatchery and natural were used to stock in the study area. The highest mean stocking density was recorded in the ghers of Rampaul (16796±7729.69 PL/ha), where the maximum survival rate was also found (63.00±11.52 %). The highest dose of lime was recorded as 302.58±50.92 kg/ha at Bagerhat sadar; cowdung was recorded as 605.16±118.46 kg/ha at Fakirhat upazilla and urea was recorded as 29.02±5.84 kg/ha (Bagerhat sadar) respectively. The maximum doses of MP and TSP were recorded as 34.58±4.51 kg/ha at Bagerhat sadar and Fakirhat and 27.79±3.71 kg/ha at Bagerhat sadar respectively. No supplementary feed were fed to shrimp, in where culture dependent on natural foods. The highest shrimp production was found in Fakirhat upazila (667±307.05 kg/ha) and the lowest production was in Rampaul upazilla (497±268.97 kg/ha). Sudden change of pH , low dissolved o2 levels, salinity variations, nutritional deficiency and other environmental changes causes yellow head viral disease (YHD), white spot syndrome viral (WSSV), vibriosis, fusarium and protozoan were recorded during the experimental period.
Fisheries and aquaculture sectors in Bangladesh: an overview of the present s...Premier Publishers
Fisheries sector in Bangladesh represents as one of the most productive and dynamic sectors in the country. This sector plays a significant role in food security, employment, and foreign exchange earnings in the economy. At present agricultural transformation is taking place in Bangladesh. With the changes of farming system, farmers have started to shift their crop land to aquaculture as they considered it more profitable compared to rice production. The production of inland fisheries represents an increasing trend since 1989-90 with a growth rate of around 5-7%. Similarly, marine fisheries have also shown an increasing trend while a fluctuated growth rate has emerged in this sub sector. The fisheries sector in the 21st century is facing the challenges of food security for the increasing population, habitat degradation, urbanization, and industrial development. Development of responsible fisheries management and optimal use of water bodies can address those challenges. Since fishery is a productive growth sector in Bangladesh, it has high potential to contribute in the socioeconomic development of the country.
Exchange Rate of Fishermen Business Fishing in Kalinaun Village, East Likupan...AI Publications
Kalinaun Village is one of the villages located in East Likupang District, North Minahasa Regency, North Sulawesi, Indonesia. Fisherman. The analysis used in this research is a descriptive quantitative analysis and descriptive qualitative. The economic situation in the form of fishing rods owned by fishermen in Kalinaun village is their own. The initial capital of Rp. 10,000,000 – Rp. 15,000,000 with a percentage of 80 %. the largest investment cost spent on the purchase of a rainbow boat was Rp. 7,500,000, - with a percentage of 70.09% of the total investment cost and the smallest cost for the purchase of a catinting machine was Rp. 3,200,000, - with a percentage of 29.91%. Fishermen go to sea also vary between 1 – 6 times a week, but on average 4 times a week go to sea. Their income as fishermen is only Rp. 48,000,000 in a year. The profit rate in a year is Rp. 41.930.000, - is the profit earned and can be used for saving or making/procuring new fishing units. The caught fish are marketed to the Girian Village or some consumers come to the fish landing site/beside the beach.
Analysis of Living Stages of Traditional Fishermen in Belang District Southea...AI Publications
The purposive of this study, namely to find out how much and what are the sources of income for traditional fishermen's families in Belang District, and the expenses of traditional fishermen's families in Belang District is, te last step is to find out how the standard of living of traditional fishermen's families in Belang District is. The Method used in this research is a survey method. The population in this study are traditional fishermen in Belang District. The data collection method used is Sampling . The sampling method is using a quataed Multi-Stages Purposive Sampling, with the number of sample villages being 15 villages and the sample fishermen taken are fishermen with fishing rods and nets as much as 10% of the total population in each sample village. The data collected consists of primary data and secondary data. Primary data was collected through observation and interviews guided by questionnaires. Secondary data were obtained from the Belang District of office and related to this research. The data analysis used is descriptive qualitative and quantitative analysis. The standard of living of traditional fishing families is analyzed using the Engel index. Based on the results of the analysis, it is known that the income of traditional fishermen's families in Belang District comes from their main job as fishermen, side jobs outside the field of fisheries. The total incomes of traditional fishermen's families in Belang District on average for one year is Rp.53,394,000. There are 2 types of expenditures for traditional fishermen's families in Belang District, namely expenditures for food and expenditures for non-food such as clothing, housing, health, education, electricity, transportation and others. The total average expenditure for one year is Rp. 53,394,000, which is divided into expenditures for food needs of Rp. 32,284,500 and expenditures for non-food needs which are Rp. 21,109,500. The results of the analysis of the Engel index are 60 0.46% , meaning that the total income of traditional fishermen in Belang District is 60.46% used to meet food needs only. The proportion for food, which is 39,54 % . This is indicates that the standard of living of traditional fishermen in Belang District is still relatively low because more than half of their income is only sufficient to meet food needs.
Aquaculture facilities used by farmers in Barangay Day-asan, Surigao City, Ph...Open Access Research Paper
The purpose of the study was to determine the aquaculture facilities used by the fish farmers in Barangay Day-asan, Surigao City, Philippines, and its effect to the fish farm production. This study utilized a survey questionnaire administered to aquaculture operators in the study area. The respondents were randomly selected, and data were collected through personal interviews and ocular inspections of the facilities. The collected data were analyzed using Statistical Package for Social Sciences (SPSS). The results showed that aquaculture farming in the study area was predominantly carried out by males. A significant proportion of older individuals above 50 years old remained active in the industry. The majority of the respondents were married, indicating that fish farming was often pursued as a livelihood activity within families. Practical experience and traditional methods played a significant role in fish farming practices, as many respondents had lower levels of formal education. Most of the fish farmers were full-time and engaged in intensive aquaculture, particularly in lobster culture. The farmers’ choice of fish species was not significantly influenced by their years of farming experience, but their management options were significantly affected by their experience. The type of culture facility used did not significantly impact fish farm production, suggesting that similar production levels could be achieved with different facility choices.
Economics of fish production in paddy fields in BangladeshAbdullaAlAsif1
This study was conducted to assess profitability of fish production in paddy fields in the village of Kunia and Chandora, under Gacha union in Gazipur sadar upazila in Gazipur district. Primary data were collected from 15 fish farmers for the study during the period from June to November, 2016. Production performance of three stocking package were compared. CFP-1 package contained Thai sarpunti (24700/ha) + Tilapia (6175/ha); CFP-2 comprised of Thai sarpunti (24700/ha) + Common carp (6175/ha); while CFP-3 was represented by Thai sarpunti (24700/ha) + (Tilapia (6175/ha) + Common carp (6175/ha). Both tabular and functional analyses were used to achieve the objectives of the study. Fish productions in paddy fields are profitable business. The total cost of fish production under three selected stocking plans such as CFP-1, CFP-2 and CFP-3 were estimated to be Tk. 73085, Tk. 83459 and Tk. 86928 per ha, respectively. The corresponding total gross return (Tk./ha) were Tk. 209777, Tk. 274170 and Tk. 262721, respectively. The benefit cost ratio (BCR) was estimated to be 2.87, 3.28 and 3.02 for package-1, package-2 and package-3, respectively. Returns over per taka investment (NR/Tk.) were found to be 1.32, 1.69 and 1.42 for the above fish culture packages. Cobb-Douglas production function analysis indicated the positive contribution of fish fingerlings, fertilizer, fish feed and lime on the total income and farm productivity, while human labor and bank interest rate decreased the farm income. The values of R2 were 0.775, 0.739 and 0.812 for CFP-1, CFP-2 and CFP-3, respectively. About 77.5 percent, 73.9 percent and 81.2 percent of variation in yield and gross return of fish production in paddy fields could be explained by the multiple regression equations. Fish production in paddy fields are economically profitable, viable and environment friendly. The farmers may undertake fish culture in paddy fields if suitable paddy fields are available.
Socio-Economic Characterization of Local Guinea Fowl (Numida meleagris) Populations in three Agro-Ecological Zones of Burkina Faso
http://dx.doi.org/10.21276/SSR-IIJLS.2019.5.2.6
Unlocking the mysteries of reproduction: Exploring fecundity and gonadosomati...AbdullaAlAsif1
The pygmy halfbeak Dermogenys colletei, is known for its viviparous nature, this presents an intriguing case of relatively low fecundity, raising questions about potential compensatory reproductive strategies employed by this species. Our study delves into the examination of fecundity and the Gonadosomatic Index (GSI) in the Pygmy Halfbeak, D. colletei (Meisner, 2001), an intriguing viviparous fish indigenous to Sarawak, Borneo. We hypothesize that the Pygmy halfbeak, D. colletei, may exhibit unique reproductive adaptations to offset its low fecundity, thus enhancing its survival and fitness. To address this, we conducted a comprehensive study utilizing 28 mature female specimens of D. colletei, carefully measuring fecundity and GSI to shed light on the reproductive adaptations of this species. Our findings reveal that D. colletei indeed exhibits low fecundity, with a mean of 16.76 ± 2.01, and a mean GSI of 12.83 ± 1.27, providing crucial insights into the reproductive mechanisms at play in this species. These results underscore the existence of unique reproductive strategies in D. colletei, enabling its adaptation and persistence in Borneo's diverse aquatic ecosystems, and call for further ecological research to elucidate these mechanisms. This study lends to a better understanding of viviparous fish in Borneo and contributes to the broader field of aquatic ecology, enhancing our knowledge of species adaptations to unique ecological challenges.
Fish to finance: unraveling the economic threads of Bangladesh’s Blue EconomyAbdullaAlAsif1
Bangladesh, with its extensive river network, vast coastlines, and rich maritime heritage, stands at the crossroads of a transformative Blue Economy. This comprehensive review explores the rich tapestry of Bangladesh's maritime journey. Commencing with a historical lens, it traces the nation's roots in fisheries, showcasing its transformation into a diversified and dynamic Blue Economy. The significance of this transition unfolds across the review, underscoring the sector's contributions to GDP, employment, and food security, while candidly addressing challenges such as overfishing and environmental impact. This work not only chronicles historical milestones but distills valuable lessons from both successes and setbacks, offering a nuanced understanding of the economic resilience embedded in Bangladesh's fisheries sector. Beyond a historical retrospective, the review navigates through the contemporary landscape, emphasizing diversification beyond fisheries. It illuminates economic opportunities in maritime trade, explores non-fish marine resources, and delves into the transformative role of aquaculture. The policy framework governing Bangladesh's Blue Economy comes into focus, dissecting government strategies, legal landscapes, and international collaborations. The review also champions environmental sustainability, highlighting the impact of Blue Economy activities on marine ecosystems and advocating for conservation measures, thus positioning Bangladesh as a steward of its rich maritime heritage. Financial mechanisms and investments emerge as pivotal elements, shaping the trajectory of Blue Economy projects, as evidenced by case studies that weave success stories and lessons learned into the narrative. Concluding with a forward-looking perspective, the study identifies emerging trends, growth opportunities, and strategies to tackle challenges, offering a comprehensive roadmap for sustainable development. In weaving together economic vibrancy, environmental stewardship, and future aspirations, this review illuminates Bangladesh's maritime odyssey as a beacon for the global Blue Economy community.
Successful hybridization between Clarias microstomus♂ and Clarias gariepinus♀AbdullaAlAsif1
Hybridization is a significant approach to breeding that enables the creation of new varieties that enhance genetic diversity. Through fish inter-species hybridization, it is possible to produce hybrids that can be utilized in aquaculture and stocking programs to enhance growth rate, transfer desirable traits between species, and combine the favourable attributes of two parents into a single progeny. The present study revealed the successful hybridization between Clarias microstomus (Ng, 2001) ♂ and Clarias gariepinus (Burchell, 1822) ♀ for the first time in the aquaculture industry. C. microstomus is a species of Clariid catfish endemic to the island of Borneo and C. gariepinus is an introduced species widely aquacultured throughout the southeast Asian region. The embryonic development of the hybrid offspring is described with the hatching percentage of 58.63% and the early survival rate for the first 72 hours for the larvae of 85.76%. The hybrids showed no signs of deformities and developed normally. The findings of the study provide a new high yield variety of catfish for farmers and aquaculture industry for increasing production and profit margin.
Freshwater gastropod diversity in the selected lotic environment, Betong, Sar...AbdullaAlAsif1
Freshwater Gastropoda can be considered as the biological indicator in ecosystems such as rivers, streams, lakes, and ponds. The objectives of this study are to identify freshwater gastropod species, diversity, and distribution along Sungai Penebak, Sungai Nanga Tiga, and Sungai Kabo in the Betong division. The study was conducted on 10 November 2020. A 50 m transect was laid on the riverbank of all three stations. The existing specimens were counted and collected from each sampling point and stored were taken to the laboratory for species identification. The diversity index and morphological study of freshwater gastropods were performed. Five species of freshwater gastropods belonging to four families were discovered. The five species of freshwater gastropods consisted of Sulcospira pageli, which shows great abundance, followed by Clea nigricans, Brotia costula, Pila ampullacea, and Vittina pennata. The diversity indices of collected Gastropoda species from the different stations, for instance, Shannon Weiner diversity index (H’), Pielou’s evenness index (J’), and Margalef’s richness index were assessed; where station 3 showed higher diversity of Gastropoda compared to other two stations. The information presented in this paper might be helpful for ecological wealth studies and considered as the baseline data for the stream ecosystem in Sarawak, Malaysia.
Macrofaunal diversity on the surface sediment of mangrove habitat adjacent to...AbdullaAlAsif1
Macrofaunal diversity and composition are essential to understanding the ecosystem structures and functions of mangroves in any dynamic estuarine coast. To understand the temporal distribution of macrofaunal community structures and diversity on the surface sediment in the intertidal mangrove forest next to the seagrass beds, this study was conducted at Punang-Sari-River estuary, Lawas, Sarawak (Malaysian Borneo), South China Sea. Sampling was done during post-monsoon, intermediate-September, premonsoon, and monsoon from July 2019 to February 2020. The mean macrofauna abundance was higher pre-monsoon, while Gastropoda Optediceros breviculum (L. Pfeiffer, 1855) was the most abundant (RA = 0.704). Important species index (ISI = 70.36) and percentage of contribution (64.97%) were also higher of this species than any other records from the site. The ANOSIM (Analysis of Similarity), Jaccard index and SIMPER (Similarity Percentage Analysis) analysis suggested that the highest species abundance similarity was observed between pre-monsoon and monsoon, while the highest dissimilarity was observed between intermediate-September and pre-monsoon (74.67%). Seasonal PCA, nMDS, and cluster analysis revealed that pre-monsoon and monsoon were comparable in species and individual abundance. The dominance (0.85) was found significantly higher (P < 0.0001) in intermediate-September, while Simpson (0.734), Shannon (1.56) and Evenness indices (0.528) were found higher in monsoon, followed by the higher Margalef richness indices (3.21) in post-monsoon. It was observed that the seasonal ecological parameters were found to be significantly (P<0.05) different, including the temperature, salinity, rainfall, pore water nitrogenous compounds (NO2, NO3 and NH3-N), phosphorus compound (PO4) and micro minerals. The Canonical Correspondence Analysis (CCA) results suggested that ecological factors influenced several species. Considering the few studies on mangrove macrofauna in Malaysian Borneo, further research on their trophic structures and food web interactions is very important to disclose their overall characteristics and ecosystem functions.
Population characteristics of the Japanese threadfin bream Nemipterus japonic...AbdullaAlAsif1
Nemipterus japonicus (Japanese threadfin bream) is one of the most significant fish species throughout the Indo-Pacific regions. No previous studies on the population dynamics of N. japonicus have been carried out in the Eastern Malaysia (Malaysian Borneo). The present study focused on the population dynamics of N. japonicus from April 2013 to March 2014 in the coastal area of Bintulu, South China Sea. Local fishermen provided samples, which were then analysed. The FiSAT II software was used to evaluate the collected length frequency data. The asymptotic length (L ∞) and growth coefficient (K) were 26.78 cm and 0.85 yr-1, respectively. The growth performance index (ϕ'), total mortality coefficient (Z), natural mortality (M) and fishing mortality (F) were 2.785, 2.97, 1.63 and 1.34 per year, respectively. According to the estimates, the exploitation rate (E) for N. japonicus was 0.45, while the E 0.1 , E 0.5 and E max were determined as 0.72, 0.4 and 0.806, respectively. The obtained value of exploitation was less than E max, although slightly higher than E 0.5. The recruitment characteristics of N. japonicus have been stable throughout the year, with one peak pulse. The results contribute to the knowledge of the dynamics of N. japonicus populations and are important for the sustainable management of the Sarawak fishing resources.
Proximate and mineral composition of the long-spined Sea Urchin (Diadema seto...AbdullaAlAsif1
Gonad of sea urchin is considered as food delicacy in many parts of the world due to high nutrition and mineral contents. Several species of sea urchins are available in Malaysia and reported from different habitat, including seagrass beds, coastal breakwater, coral reefs and other ecologically important habitats. The current study was undertaken to evaluate the proximate and mineral composition of long spined sea urchin (Diadema setosum) roe collected from breakwater of Terengganu, Malaysia in October 2019, November 2019 and January 2020. The samples were analysed for proximate including protein, lipid, moisture, and ash content of sea urchin roe. The macro, micro minerals and heavy metals were also evaluated including Ca, Fe, Zn, Cu, Co, Se, Mg, Ni, Pb, Al, and Cd. The result suggested that, long spined sea urchin (Diadema setosum) roe can be considered as good sources of food due to high percentage of protein (ranged between 36.21±0.44 and 50.14±4.63). The presence of heavy metal such as Ni, Pb, and Cd suggesting the breakwater environments were not good enough and the possible sources of heavy metals contamination in sea water environment must be stopped and eradicated. This study provides important information with regard to the proximate and mineral values of D. setosum, as well as the need for a better management of its habitat before D. setosum can be widely promoted as delicacy in this region.
Trends in seagrass research and conservation in Malaysian watersAbdullaAlAsif1
The seagrass ecosystems found in the marine and coastal areas, with substantial economic and ecological services and span all over the globe excluding the Antarctic region. The Coral Triangle and Southeast Asia are recognized as a worldwide hotspot of seagrass species and habitats, encompassing 10-21 species of seagrass in every nation , although the study, understanding, and quantity of publications on seagrass ecosystems are rather limited in the region, including Malaysia. Malaysia contains 18 seagrass species from three families, which occupy 16.8 km 2 of coastal area, where the study and discovery of seagrass species and meadows began in 1904 with the report of Beccari. All of the published papers reviewed reported on Malaysian seagrass-related research, which was divided into nine topic groups: biology and distribution, carbon sequestration, fauna, remote sensing, impact and pollution genetic study, restoration , microbiological investigation, and others. The extensive study of the seagrass ecosystem began in 1993, and we have identified 183 published papers from Scopus, 141 publications from Web of Science, and 42 from Google Scholar. However, the average trend of the number of publications from 1993 to 1999 was 0.71 ± 0.36, while from 2000 to 2022 was 7.70 ± 1.16 followed by the average trend of the yearly number of publications was 6.78 ± 1.08. The highest number of publications was found on faunal categories (43.17%), followed by biology and distribution (21.85%). The number of articles that were published on Malaysian seagrass meadows each year has been discovered to be rising, which indicates that the trends in seagrass study and publishing were progressively garnering the attention of researchers, academics, and the government. However, to better understand the sustainable ecology and ecosystem services provided by seagrass habitats, an emphasis on certain research niches, such as the genetic study of flora and fauna in seagrass meadows, microbial ecology, and restoration as well as conservation of seagrass species might be helpful.
First record of saucer scallop Ylistrum balloti (Bernardi, 1861) from equator...AbdullaAlAsif1
Ylistrum balloti is one of the Pectinidae species distributed within the Indo-Pacific region. Recently, 15 live specimens of Y. balloti were recorded from the continental shelf of Sarawak, Malaysia. The main morphological characteristics were displayed on the outer valve, these being a brown-red colour and a clear concentric pattern of thin brown lines. The prominent internal ribbing numbers on both valves also helped species identification. The preliminary report of Y. balloti revealed that the species is present in Sarawak waters and can be further explored in the future.
Culture and production of Lucilia sericata Meigen (1826) larvae for rearing s...AbdullaAlAsif1
The fly larvae (Lucilia sericata) are being used as an alternative protein source in any kind of animal feed as it reduces the cost of preparation of feed. This current study focused on the physico-chemical and proximate properties of raw poultry waste, while this study also revealed the production process of fly larvae and the proximate composition of it. The poultry waste was collected from Suvro poultry farm, Sutiakhali, Mymensingh, then the physic-chemical properties of the raw poultry waste were determined using different procedures. Three treatments were considered for production of fly larvae, T 1 (3 kg), T 2 (6 kg) and T 3 (9 kg) in a 15 kg capacity tray with three replications. After production, the proximate composition were also measured of fly larvae. Physico-chemical properties such as, color, odor, texture, temperature, pH, total solids (TSS+TDS), chemical oxygen demand, dissolved oxygen, alkalinity, available N, available P, and fiber in raw poultry waste were determined and presented. Proximate composition such as, moisture, total N, total P, available N, total Ca, ash and crude fiber were found in significant amount in the poultry waste. It was found that T 3 (1350±68g) produced highest volume of live maggot compared to the other treatments, but T 2 (17.50±1.10%) produced highest percentage volume. The proximate compositions of fly larvae were assessed and found 56.60±0.25% protein value in it, suggesting that fly larvae could be the protein replacer in fish feed. The result of this study revealed cheap protein source in aquaculture production, such as production and rearing of stinging catfish Heteropneustes fossilis, and the findings might be helpful for cost reduction in aquaculture operation.
Replacement of fish meal by Lucilia sericata (Meigen, 1826) live larvae and p...AbdullaAlAsif1
Reduction of aquaculture operations and production cost is key to the success and profitability of this enterprise, while protein needs, especially the cost of fish meal, are cery expensive. The current study was conducted to investigate the post-larval production performance of Heteropneustes fossilis using Lucilia sericata maggot as a fish meal replacer in two ways, namely, live larvae and powder form. A 28 days growth trial was performed where five isonitrogenous diets for Heteropneustes fossilis post-larvae were experimented using live maggots and maggot meal, respectively. The proximate composition of each formulated diet, growth parameters of fish post-larvae, such as, weight gain, specific growth rate, protein efficiency ratio, apparent protein utilization, survival rate and the food conversion ratio were examined. After the experiment, the carcass composition of the experimental fishes were evaluated. The best final weight (1.61 g), weight gain (1.418 g), percentage of weight gain (739±1.18%), specific growth rate (2.63), protein efficiency ratio (2.29), apparent protein utilization (85%), survival rate (90%) and lower food conversion ratio (2.06) were observed in fish fed with 75% maggot meal as a substitute of fish meal. This study will help the aquaculture industry, especially the catfish culture in identifying an alternate source of protein and lowering the cost of aquaculture operation.
The molecular approach reveals the relationship among Venus clams (Meretrix s...AbdullaAlAsif1
Molecular study is important to detect variations and similarities among species from the same genus, in case if they do not encompass any morphological or physiological differences. The study was conducted to differentiate among species of Meretrix spp. (Meretrix lyrata, M. meretrix, and M. lusoria) obtained from two locations in Malaysia through the phylogenetic tree. The adductor muscle tissues were used to extract DNA and to perform other procedures; the samples were subjected to analyses using PCR and gel electrophoresis. The multiple sequence comparison was conducted by MUSCLE and the phylogenetic relationships were established using Maximum Likelihood (ML) statistical methods with MEGA 6.0 statistical software. M. lyrata samples showed 99% similarity to the three accessions sequence, where M. lyrata indicated 87% similarities, and M. meretrix showed not more than 89% similarities from the deposited sequence. The nucleotide base composition sequences consisted of the mean of Thiamine (T) 37.9%, Cytosine (C) 15.4%, Adenine (A) 27.4%, and Guanine (G) 19.4%. Maximum Likelihood (ML) analysis was conducted using the Tamura 3-parameter model to establish five major clades on Meretrix spp. and two out-groups clades significantly different from the Meretrix spp. These major clades were closely related to each other at the 50% evidence of bootstrap, which grouped as genus Meretrix. The present study on Meretrix spp. from the Sarawak locality was able to differentiate COI sequences between M. lyrata, M. meretrix, and M. lusoria. M. lusoria was close related to M. meretrix with strong bootstrap supporting evidence at 96% scoring. Moreover, M. lyrata was inferred as the ancestor to M. meretrix, and M. lusoria from Sarawak, Malaysia.
Disappearance or overlooked or untouched? - A brief history of aquatic gastro...AbdullaAlAsif1
The aquatic gastropods (marine and freshwater) in Malaysian Borneo (MYB) have an ancient history of 255 years, while the first record was observed in 1767 by the pioneer Carl Linnaeus. Over time, many European, native taxonomists and conservationists have worked on the diverse group of gastropods in the Malaysian part of Borneo (states of Sabah and Sarawak). No previous work has been conducted to assess the historical status of this particular class of Mollusca. The study objective was to reveal the types of aquatic gastropods and the number of published research and expeditions conducted in MYB. The bibliometric analysis found 145 research publications mentioning the names of the region and reporting at least one gastropod species from this geographic region. Over the history of 255 years, a total of 559 gastropod species were reported by different research groups. Between 1767 and 1900, a total of 150 gastropod species were reported, followed by 79 species from 1900 to 2000 and 330 species from 2001 to 2022. The Grubbs test (p<0.05) identified outlier years for the reporting of gastropod species from MYB with 54 new species each in 2011 and 2020 and 39 species in 2001. Over the history of aquatic gastropod research in MYB, the taxonomists making the greatest contribution were Han Raven and his colleagues from Naturalis who reported 111 new species from the region, followed by Nur Leena Wong from Universiti Putra Malaysia (54 new species). The results suggested that reporting of new species from MYB is increasing, which may reflect the many unexplored sites and suggests the existence of as yet unrecorded species in this ecoregion. In this regard further expeditions and research should improve estimates of the true number of aquatic gastropod species in this area. These results can help the regional governments in making a regional biodiversity database as well as in taking decisions regarding aquatic gastropod research and management.
A ray of hope in the darkness: What we have learned from Yangtze giant soft-s...AbdullaAlAsif1
The Swinhoe's softshell turtle, Rafetus swinhoei (Gray, 1873),) is one of the world's largest freshwater turtles, and possibly the most endangered turtle species on the planet (Stanford et al., 2018). It has an overall length of over 100 cm and a width of up to 70 cm, and it can easily weigh up to 70–100 kg, maximum weight was recorded at 169 kg (Solimine, 2013; Trong, 2018). Despite its enormous size and unusual look, this species is incredibly secretive and only comes to the surface to breathe, preferring to remain submerged deep down. For this species, there is very little ecological information, and the remaining distribution is unclear. This could explain why it's so difficult to positively identify and confirm occurrences of this species in the wild (Trong, 2018). If we look back to the history and biogeography of this species, it can be found that the existential records were documented in the historical literature of the Chinese and Vietnamese dynasties. This species was once thought to only live along the Red River in China and Vietnam, as well as the lower Yangtze River floodplain in China, but its current population size is estimated to be just one wild individual of undetermined sex and a solitary captivity male in Suzhou Zoo, China. Although recent thorough searches in Yunnan, China, and Vietnam failed to confirm the presence of more wild specimens, some sightings were reported until around a decade ago (Stanford et al., 2018), giving hope that more individuals may yet exist in Vietnam.
Snapper shrimp is a symbiotic organism usually hidden under the rocks, sponges and pen shells in the seagrass and coral habitats. The relationship study within snapper shrimp and pen shell was conducted from Merambong shoal, one of the biggest seagrass beds in peninsular Malaysia. A total of 40 individual pen shells were collected randomly and four species of pen shells were identified. 40 Anchistus custoides were found inhabiting symbiotically in the mantle cavity of the pen shell as solitary males and females and heterosexual pairs. Pen shell, Pinna bicolour and Atrina vexillum recorded the highest average SH 217.79±53.15 mm, SV 2.62±1.36 dm3 and SH 164.10-224.78 mm with the SV 1.18±0.43 dm3, respectively compared to the other species. The size of Anchistus custoides ranged from 15.00 to 20.00 mm in length and it was determined to be female due to the presence of eggs in the pleopods. The length of the cephalothorax and its length were highly related (rs=0.563, p≤0.01, N=40) and found wider in females. A little difference in size between the left and right chela in males of identical length was noticed, although the left chela is much bigger than the right. The significant relationship (rs=0.450, p≤0.01, N=40) between the pen shell length and shrimp (male-female) length revealed that the size of the shell is important to be hosted the snapper shrimp in the shell cavity.
Diversity of fisheries in Sarawak, Northwest Borneo: Present status and conse...AbdullaAlAsif1
Information on fisheries resources in East Malaysia is scarce and poorly known. The current review aims to compile a checklist of fisheries resources in the Northwest Borneo (Sarawak, Malaysia) from available published literature, address the resources' present status, and suggest future monitoring needs for selected critical species. The study also aims to determine several Sarawak land-use issues that are in flux and responsible for habitat degradation. Five hundred sixty-four species belonging to 123 families and 32 orders were recorded from Sarawak waters. Freshwater fish species comprised 48.0% of the total, followed by a marine (36.6%), marine-euryhaline (12.9%), and brackish water (2.5%) species. Of this, Cyprinidae was the most dominant group accounting for the greatest number of species (82 species), followed by Balitoridae (34 species), Bagridae (21 species) and Penaeidae (21 species). Therefore, available fisheries resources should be managed carefully as 48 species (9.0%) are currently vulnerable to extinction. Furthermore, the presence of 20 alien species in Sarawak water bodies also requires attention from the authorities due to the potential disruption of aquatic ecological balance. Changing land use issues in Sarawak such as forest degradation, agricultural expansion, peatland deforestation and conversion, logging, destruction of mangrove forests, and construction of hydroelectric power dams and flood mitigation channels pose significant challenges to fishery management in Sarawak. Our study documents the priority of fishery monitoring and conservation in Sarawak water bodies to ensure sustainable management of fisheries resources.
Availability and potentiality of small indigenous species of fish throughout ...AbdullaAlAsif1
This study was conducted with aiming to know the present status of small indigenous fish species (SIS) in Oxbow Lakes/baors and rivers as well as the availability of SIS of fish and their potentiality in the study area. Regular data were collected from some important fish landing center cum markets, Oxbow Lakes and rivers of the study area. The availability of small indigenous species (SIS) of fish declined to a great extent over the years and many of them are rare or endangered due to death of rivers and baors were brought under aquaculture. Besides these, Many of SIS of fish were being increasingly used as trash fish for fish feed purpose. As an over populated country, demand of SIS of fish is increasing day by day. After 1990s almost all Oxbow Lakes have been gradually trying to bring under aquaculture through local community or Department of Fisheries. The most significant message of this study is that, some vulnerable and endangered SIS of fish are locally abundant both in fish landing center, baors and rivers. So they must be conserved for their bioavailability and nutrition throughout the country that would be most intelligent efforts in favor of global ichthyo-biodiversity conservation.
Marketing of fish and fishery products in Dinajpur and livelihoods of the fis...AbdullaAlAsif1
Marketing of fish and fishery products in Dinajpur and livelihoods of the fish retailers were studied during the period from January to May, 2013. A total of 60 fish retailers were interviewed for obtaining pertinent data. A survey questionnaire was developed, pre-tested and finally used for collection of data. The collected data were tabulated using conventional statistical tools. The result showed that the livelihoods of a large number of people are associated with fish and fishery products distribution and marketing in six different markets. Three types of marketing channel were found to be operated in the selected markets. The shorter marketing chain which included the fish farmers, retailers and consumers was found to be more beneficial to the fish producers. Fish traders in village markets generally operate a capital of around TK. 8,000-10,000 and traders in town markets a capital of around TK. 10,000-20,000 per day. It was found that most of the fish traders used their own money. Price of fish depends on market structure, species, and freshness, supply demand of fish and size of fishes. There are seasonal variation in prices with the highest in summer (March to May), and lowest in pre-winter: (September to November) during the fish harvesting season. Different types of dried and salted fish were sold in the markets. Traders have broadly improved their food consumption facilities, standard of living, and purchasing power as an economic sector. However, the unhygienic conditions of the marketplace, lack of ice facilities, poor infrastructure, inadequate storage and poor transportation facilities were reported to be the major constraints hindering the marketing system in the surveyed areas. It is therefore necessary to provision of governmental, institutional and banking assistance for improvement of the marketing system.
Attitude of the farmers towards climate change effect on agricultureAbdullaAlAsif1
Global climate change has triggered the increased incidence of extreme disasters like cyclone, flood, soil salinity, etc. in the coastal region of Bangladesh. In the recent past, an amplified number of fatalities happened and the greater impact also acted upon the attitude of coastal people. Badarpur Union under Patuakhali Sadar upazila of Patuakhali District was the selected locale of the concerned study. Data for this research work were personally collected from a randomly sampled 121 farmers from different villages of Badarpur union by using an interview schedule. Attitude of the farmers was ascertained through a five-point-Likert type scale. Coefficient of correlation (r) was computed to explore the relationships between farmers " attitude and their selected characteristics. The findings revealed that 51.2 percent of the farmers had moderately favourable attitude towards climate change effect while 42.1 percent had slightly favourable and 6.6 percent had highly favourable attitude. The correlation test showed that the education, farming experience, farm size, annual income, training received and agricultural knowledge had positive significant relationships with farmers " attitude towards climate change effect on agriculture while the rest of the characteristics had no relationship in the present study. The focus findings of the present study were that, the attitude of the farmers is changing due to changes in the climatic conditions and there was a positive effect of it on agriculture.
Socio-economic condition of fish farmer and trader at the village of Pitambor...AbdullaAlAsif1
The study was conducted at pitambarpur, under the union of shinghajhully, Chaugachha, Jessore in Bangladesh. The study period was carried out during September to December, 2014. In the selected areas, the study was conducted on 45 persons. The collected information was totally interview and observation based study. In the study area it was found that 54% farmers used semi pucca, 19% of fish farmers used to live pucca houses and rest of 27% farmers used to live earthen houses. The percentage of age distribution was 5% farmer was 25-35 years, 10% farmer was 35-40 years and rest 85% farmer has the age of 40 and above. It was observed that 5% of finance are contributed by farmers, 73% farmers got finance from bank whereas 22% farmers took finance from local moneylenders. About 97% of the fish farmers used tube well and rest 3% of the farmer uses pond water. In Pitamborpur 90% of farmers are illiterate and rest 10% farmers are literate. About 45% traders has own bank account but only 55% traders has no bank account. They exchange their money by cash or liquid money. It was found that 5% of concrete toilet and 50% has earthen toilet and 45% has semi-pucca toilet. After toilet work 100% farmer and farmer's family member use soap or basic substance. In case of illness 95% of traders and farmer's family served by quack doctor treatment, only 5% farmer goes to MBBS doctor. Almost 98% farmer's children are used to go school. Rest of 2% children is used to go with his father's work. About 97% of total income comes from fish business and 3% involve in others occupation. The rest 3% has secondary business like tea stall business, agricultural activity, and motorized vehicle operation etc. About 99% farmers use mobile phone and only 1% has no mobile phone. In Pitamborpur all of the farmers are Muslim. Most of the farmers and traders has 5to 6 member in family, and usually they lived as a nuclear family. In the present study area 86% of farmer and trader have nuclear family. Rest of 14% has joint family.
Multi-source connectivity as the driver of solar wind variability in the heli...Sérgio Sacani
The ambient solar wind that flls the heliosphere originates from multiple
sources in the solar corona and is highly structured. It is often described
as high-speed, relatively homogeneous, plasma streams from coronal
holes and slow-speed, highly variable, streams whose source regions are
under debate. A key goal of ESA/NASA’s Solar Orbiter mission is to identify
solar wind sources and understand what drives the complexity seen in the
heliosphere. By combining magnetic feld modelling and spectroscopic
techniques with high-resolution observations and measurements, we show
that the solar wind variability detected in situ by Solar Orbiter in March
2022 is driven by spatio-temporal changes in the magnetic connectivity to
multiple sources in the solar atmosphere. The magnetic feld footpoints
connected to the spacecraft moved from the boundaries of a coronal hole
to one active region (12961) and then across to another region (12957). This
is refected in the in situ measurements, which show the transition from fast
to highly Alfvénic then to slow solar wind that is disrupted by the arrival of
a coronal mass ejection. Our results describe solar wind variability at 0.5 au
but are applicable to near-Earth observatories.
This presentation explores a brief idea about the structural and functional attributes of nucleotides, the structure and function of genetic materials along with the impact of UV rays and pH upon them.
Introduction:
RNA interference (RNAi) or Post-Transcriptional Gene Silencing (PTGS) is an important biological process for modulating eukaryotic gene expression.
It is highly conserved process of posttranscriptional gene silencing by which double stranded RNA (dsRNA) causes sequence-specific degradation of mRNA sequences.
dsRNA-induced gene silencing (RNAi) is reported in a wide range of eukaryotes ranging from worms, insects, mammals and plants.
This process mediates resistance to both endogenous parasitic and exogenous pathogenic nucleic acids, and regulates the expression of protein-coding genes.
What are small ncRNAs?
micro RNA (miRNA)
short interfering RNA (siRNA)
Properties of small non-coding RNA:
Involved in silencing mRNA transcripts.
Called “small” because they are usually only about 21-24 nucleotides long.
Synthesized by first cutting up longer precursor sequences (like the 61nt one that Lee discovered).
Silence an mRNA by base pairing with some sequence on the mRNA.
Discovery of siRNA?
The first small RNA:
In 1993 Rosalind Lee (Victor Ambros lab) was studying a non- coding gene in C. elegans, lin-4, that was involved in silencing of another gene, lin-14, at the appropriate time in the
development of the worm C. elegans.
Two small transcripts of lin-4 (22nt and 61nt) were found to be complementary to a sequence in the 3' UTR of lin-14.
Because lin-4 encoded no protein, she deduced that it must be these transcripts that are causing the silencing by RNA-RNA interactions.
Types of RNAi ( non coding RNA)
MiRNA
Length (23-25 nt)
Trans acting
Binds with target MRNA in mismatch
Translation inhibition
Si RNA
Length 21 nt.
Cis acting
Bind with target Mrna in perfect complementary sequence
Piwi-RNA
Length ; 25 to 36 nt.
Expressed in Germ Cells
Regulates trnasposomes activity
MECHANISM OF RNAI:
First the double-stranded RNA teams up with a protein complex named Dicer, which cuts the long RNA into short pieces.
Then another protein complex called RISC (RNA-induced silencing complex) discards one of the two RNA strands.
The RISC-docked, single-stranded RNA then pairs with the homologous mRNA and destroys it.
THE RISC COMPLEX:
RISC is large(>500kD) RNA multi- protein Binding complex which triggers MRNA degradation in response to MRNA
Unwinding of double stranded Si RNA by ATP independent Helicase
Active component of RISC is Ago proteins( ENDONUCLEASE) which cleave target MRNA.
DICER: endonuclease (RNase Family III)
Argonaute: Central Component of the RNA-Induced Silencing Complex (RISC)
One strand of the dsRNA produced by Dicer is retained in the RISC complex in association with Argonaute
ARGONAUTE PROTEIN :
1.PAZ(PIWI/Argonaute/ Zwille)- Recognition of target MRNA
2.PIWI (p-element induced wimpy Testis)- breaks Phosphodiester bond of mRNA.)RNAse H activity.
MiRNA:
The Double-stranded RNAs are naturally produced in eukaryotic cells during development, and they have a key role in regulating gene expression .
Richard's entangled aventures in wonderlandRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
What is greenhouse gasses and how many gasses are there to affect the Earth.moosaasad1975
What are greenhouse gasses how they affect the earth and its environment what is the future of the environment and earth how the weather and the climate effects.
Seminar of U.V. Spectroscopy by SAMIR PANDASAMIR PANDA
Spectroscopy is a branch of science dealing the study of interaction of electromagnetic radiation with matter.
Ultraviolet-visible spectroscopy refers to absorption spectroscopy or reflect spectroscopy in the UV-VIS spectral region.
Ultraviolet-visible spectroscopy is an analytical method that can measure the amount of light received by the analyte.
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International Journal of Fisheries and Aquatic Studies
lack of alternative livelihoods for PL collectors is one of the
principle constraints on implementing any policies, laws
and/or regulations geared towards the development of a
sustainable resource use strategy as well as conservation effort
for the wise use of the marine, coastal and estuarine resources
of Bangladesh (Ahmed, et al., 2012) [1]
. For this, in February
2002 the Government placed the enforcement of the fry
collection ban into abeyance pending further review of how
the resource and biodiversity could be conserved at the same
time as protecting the livelihoods of 300,000 fry collectors
(Williams, 2002) [20]
.
Materials and methods
The study was conducted at Shyamnagar upazila which is
situated in Satkhira district from September to December in
the year of 2013. Area of the Shyamnagar upazila is about
455.31 sq.km (1,903 sq. km. with Sundarban) (Source:
Upazila parishad). About 55% villagers are directly involved
in fry collection seasonally in this region. A questionnaire was
developed to collect data on socio-economic condition,
livelihood status and alternative ways of livelihood during
season of fry collection from Sundarban and its adjacent
rivers. The primary data were collected through field survey at
the study area by using the developed questionnaire. Data on
fry collector's activities were collected both by physical
observation and interviewing with fry collectors at the 3
unions of Shyamnagar upazila. Secondary data and
information related to the study was collected from
Shyamnagar upazila parishad, union parishad, scientific
journal articles, different national (BBS, DOF) and
international (FAO, DFID) organizations.
Fig 1: Location of the study area (Shyamnagar upazila).
Result
Socio-economic condition of fry collectors
Population
The study was conducted at Kaikhali, Munshiganj and
Burigoalini union into 100 peoples were interviewed. Total
family members were 518 that means their average family size
was about 5 persons/family. In 518 people 266 was male and
252 was female that means the ratio of male and female was
1.05:1.
Fig 2: Population Structure of three Union Shyamnagar
Age structure
The average age of the respondents has been 25 years, which
ranges from 10 to above 50 years. Majority of them in
Kaikhali, Munshiganj, Burigoalini are respectively 33.93%,
31.22% and 33.82% are in the age of between 20-30 years.
About 17% of fry collectors are children aging between 10 to
20 years. About 15.2% average respondents are in the middle
age between 40 to 50 years and only 4.32% average
respondents are old aging above 50 years.
Table 1: Age structure of fry collector at different union.
Union
Age structure (years)
Total
10-20 20-30 30-40 40-50 50+
Kaikhali
17.34
%
33.93
%
31.54
%
13.75
%
3.44
%
100%
Munshiganj
18.35
%
31.22
%
29.32
%
15.54
%
5.57
%
100%
Burigoalini
15.35
%
33.82
%
30.53
%
16.33
%
3.97
%
100%
Sex ratio of the fry collector
About 66% of the respondents were men and 34% were
women who worked as fry collector. Percentage of women
was increasing because men cannot catch frequently due to
restriction but women can easily catch near the river sites.
Since the collection of wild fry is usually a family operation,
several members engaged in collecting fry. With many
collectors, this can represent a significant income source for
poor families. Children were engaged due to poverty.
Fig 3: Sex ratio of fry collectors
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International Journal of Fisheries and Aquatic Studies
Religion
There are two main religion groups- Muslim and Hindu are
living peacefully without any conflicts. Only tribal
communities living in this area is Munda. In 518 people 321
people are Muslim and 197 people are Hindu that means 62%
are Muslim and 38% are Hindu.
Fig 4: Percentage of different religion of fry collector's family.
Education
Among the fry collectors about 31% was literate and 69% fry
collectors are illiterate. Literacy rate was 28% and 72% for
female and male respectively. Among literate people 48% of
them were up to sign only, 36% were up to primary level and
16% were up to SSC level.
Fig 5: Educational status of the people in the study area.
Housing Condition
Most of the collectors (63%) lived in mud walled with golpata
shed, whereas 26% lived in tin shed houses, 8% lived in semi-
pucca houses and others 3% lived in pucca houses. Electric
services facilities were absent in some areas of study area.
Fig 6: Housing Condition of people in the study area.
Health and Diseases
The fry collectors have poor access to limited or no access to
health care. Poor women and children suffer the most socially
and economically as a result of the expansion of shrimp
culture. Standing in cold salty water using push/pull nets for 6-
10 hours a day can expose women and children to Malaria,
Dengue, and Diarrhea. There are few health facilities available
to women especially in the Sundarbans where they are forced
to migrate in search of fry. Still malnutrition is a common
phenomenon. The birth of some underweight baby could not
be avoided so far.
Fig 7: Diseases affected in the study area.
Sanitation
Only 37% of the households have the access to sanitary latrine,
52% of the households use the non-sanitary latrine and 11% of
the households do not have latrine facilities. Among latrine
users approximately 25% of the villagers used semi-pucca
latrine, 9% used pucca latrine, 22% use hanging latrine, 33%
use kacha latrine.
Fig 8: Sanitation in the study area.
Sources and Use of Water
People in the study area do not have access to safe drinking,
cooking, bathing and washing water properly. The study
shows that in the survey area 27% households are use pond
water, 22% households are use tube-well water, 44%
households use filter water or PSF and 7% households collect
and reserve rain water as the source of drinking water.
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International Journal of Fisheries and Aquatic Studies
Fig 9: Sources and use of water in the study area.
Earner of the fry collector’s family
In the study area about 73% of the fry collector’s families have
two earner groups and 11% have one earner and more than two
have rest 16%.
Fig 10: Earner of the fry collector’s family.
Season and Time of fry collection
The main season of fry collection is in the month of December
to June. In the beginning of the season found more shrimp fry
than the last months and price also high in the beginning of the
season that the peak-season for shrimp fry collection is March-
May. Generally the fry catchers go out twice a day, usually
from 4am to 10am and 3 pm to 5pm.
Price of the fry in different month
Price of fry was Tk.3500-4000/thousand, Tk.2500-
3000/thousand, Tk.1500-1800/thousand and tk.800-
1000/thousand in the month of April, May, June-July and
August-March respectively. Price of fry is higher in the month
of April and May because the demands of fry in this month are
highly increased.
Yearly income of the fry collector's family
About 15% family had an annual income of Tk. 20000-25000,
19% family had an income of Tk. 25000-30000, 41% family
had a highest income of Tk.30000-35000 and 25% family had
an income of Tk.35000 above.
Fig 11: Yearly income of the fry collector's family.
Daily income of the fry collector during peak and off-peak
season
Average daily income of a fry collector was about Tk. 150-250
in peak season and about Tk. 100-150 in off-season of fry
collection for men and about tk. 80-100 in peak season and
Tk.40-60 in off-season for women. Income increases during
April-May from fry collection.
Poverty cycle
Fig 12: Poverty cycle of the shrimp fry collectors in the study area.
Source and amount of borrowing money
The loan amount varies from tk. 1000 to 15000 mostly. About
29% fry collector borrow Tk.1000 to 5000; 44% fry collectors
borrow Tk.5000 to 10000; 16% fry collectors borrow Tk.
10000-15000 and 11% fry collectors are borrow money above
15000. At present most of them about 75% get money from
Dadondars.
Fig 13: Different amount of money borrowed by fry collectors.
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International Journal of Fisheries and Aquatic Studies
Discussion
In the report of BOBP (1990)[6]
it was found that fry collectors
in Satkhira and Khulna districts, women lived in more
oppressive conditions despite their hard work in various
activities, their position in the family and society was
distinctly subordinate. Discrimination found in average wage
rate, based on gender and age. This study is more or less
similar to our study.
Employment in fry collection is significantly depending upon
the demand and supply of shrimp fry. Because alternative
economic activities such as share-cropping and agricultural
laboring are declining with the expansion of shrimp culture,
many fry collection households are abandoning traditional
occupations and becoming more dependent on fry collection
(DOF and DFID 2001a) [9]
.
Mahmood (2013) [16]
, reported as fry collectors primarily come
from the lower social strata and are looked down upon by the
rest of the community. This study is more or less similar to our
study.
Shyamnagar upazila consists of 12 unions and there are about
3, 64, 922 people lived within the upazila (Shyamnagar
Upazila Parishad, 2013) [18]
. In another study by Quddus, et
al., (2001) [14]
stated that the mean family size is 5.7 in the
sundarban region. The family size of female fry collectors is
smaller (5.3) than those of the male fry collectors (6.2) in this
region. While the national mean was about 5.8 according to
last census (BBS, 2001) [4]
. Which is almost similar to our
study where we showed the average family member are 5 in
this region.
In a study of DOF and DFID (2001b) [10]
age range of adult fry
collectors varies between 16 to 72 years, the majority being
between 25 to 44 years. The mean age of fry collectors is
about 34 years which is higher from my study where the
average age was 25 years because most of the middle age
collectors are now involved in alternative livelihoods. Men and
women don’t differ much regarding the mean age. The average
age of a child fry collector was 14 which are similar with my
study (15years). This study is more or less similar to our study.
We found about 66% of the respondents was men and 34%
were women who worked as fry collector.
According to BBS (2001) [4]
in Shyamnagar upazila 77.52% of
total population are Muslim, 22.36% are Hindu and rest 0.12%
of other communities, which is not similar with my study
where we found that 62% fry collectors are Muslim and 38%
fry collectors are Hindu because all communities reside
permanently in the study area adjacent to Sundarban than other
region of the country. This study is more or less similar to our
study.
In a study of DOF and DFID (2001b) [10]
more that 80 percent
of fry collectors are functionally illiterate, who is higher than
my study where it was found that 69% illiterate people.
Because Upabritti is provided and food for education system is
initialized by Govt. to school going children. This study is
more or less similar to our study.
Mahmood (2013) [15]
reported that the shrimp fry collectors
lived in four types of houses such as mud wall with golpata
shed, mud wall with tin shed, semi pucca and pucca houses.
Most of the collectors (55%) lived in tin shed houses which is
much differ from this study where it was found that most of
the collectors (63%) lived in mud walled with golpata shed
house because after tidal bore Aila occurred in 2009 all their
houses devastated. About 7.4% of the dwelling households
have access to electricity (BBS, 2001) [4]
. This study is more or
less similar to our study.
Halim, et al. (2001) [12]
in the study of women and children at
shrimp sector showed that almost all of the respondents suffer
from any kind of diseases. Of them 80.8% of the respondents
suffer from fever while 10.5% suffer from diarrhea, which is
about same to our study where the predominant types of
diseases like fever (61%), diarrhea (9.5%), skin diseases
(6.0%), dysentery (5.4%), gastric (2%), malnutrition (3.6%)
are found. This study is more or less similar to our study.
The national statistics (BBS, 2001) [4]
shows that 51.5%
households have sanitary latrine facilities in Bangladesh. It
was found that 69% and 31% of fish farmers used semi-
pucca and pucca toilet respectively (Asif et al., 2015) [3]
.The
study shows that the rate of having sanitary latrines in the
study area is 37% which is lower than the national average.
Because people does not properly concerned about sanitation
facilities in this region yet. In another study of UNBINIG
(1991) [19]
, reported that only 44% households have private
latrines of sorts. This study is more or less similar to our study.
According to population census of BBS (2001)[4]
in
Shyamnagar the sources of drinking water are tube-well
35.94%, pond 50.74%, tap 6.46% and others 6.86%. While in
the study area it has been found that most of the respondents
are used pond water for multipurpose both drinking and
cooking because there is few available alternative source of
water. 27% are use pond water, 22% are use tube-well water,
44% use filter water or PSF and 7% collect and reserve rain
water as the source of drinking water. This study is more or
less similar to our study.
Fry collection is the major occupation of 83 percent of total
people in the Sundarban region (Quddus, et al., 2001) [17]
.
Those that are primarily dependent on fry collection earn 70-
80 percent of their income from it. Most of the families have
two earners because women are often forced to get involved in
fry collection because they have no other viable alternative
(DOF and DFID 2001b) [10]
, which are similar with this study.
Frankenberger T.R. (2002) [11]
reported that in the Khulna
Division, the main fry collection period is mid-November to
mid-July. However, in Southwestern Bangladesh, the fry
season has become extended to almost a year round activity.
The peak season for golda fry is April-May, which is likely
similar to my study where it was found that the peak season
for golda fry collection is March-May. This study is more or
less similar to our study.
According to the study of UBINIG (1991) [19]
during a full
moon and a new moon, the fry catch can more than double. It
is during this time that number of fry collectors increases.
During the non-peak season, they collect fry during the full
and the new moon periods (August and October). This study is
more or less similar to our study.
Quddus, et al. (2001) [17]
reports that the mean annual income
of all respondents from all sources is Tk. 26,316. On an
average a male fry collector’s household annual income is Tk.
30,140 as against Tk. 21,862.0 of a female one, which is about
same to my study where I found that their highest mean annual
income of Tk. 30000-35000. This study is more or less similar
to our study.
In the study of shrimp seed collectors of Bangladesh UBINIG
(1991) [19]
the price depends on the demand from the Gher
(shrimp farm), rather than on the supply of fry. During the
season, the catch amounts to 1000 to 5000 fry per catcher per
day and a catcher can earn Tk. 50-250 per day. On the other
hand, during off-season, the catch is between 300 to 400 per
day, and the earning is only Tk. 45-72 per day, which is much
differ with my study where it was found that The average
6.
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International Journal of Fisheries and Aquatic Studies
number of fry collection by man was 150-200 pieces per day
and 40-60 pieces per day by women and children during peak
season. Because the referred study was conducted about 23
years ago from now and recent environment of Sundarban and
its adjacent areas has changed due to natural disaster like tidal
bore (Aila, Sidr), manual devastating of forest, population
increase etc. This study is more or less similar to our study.
Seventy percent of the fry collectors borrow 2,000 to 10,000
Tk. (Frankenberger, 2002) [11]
, Eighty percent of the fry traders
that borrow from the Dadandars are then obligated to sell fries
to them (DOF and DFID, 2001b) [10]
, whereas it was found that
in the study area about 75% get money from Dadondars and its
amount varies mostly Tk. 5000-10000 which is higher than
previous work because poor fry collectors have lost their
properties due to natural disaster occurred last few years ago.
So they have to borrow more than past. Asif et al., (2014)[2]
reported that it was observed that 24% farmers got loan from
bank whereas 31% farmers took loan from local moneylenders
with high interest of credit This study is more or less similar to
our study.
Conclusion
The Southwest Coastal Region of Bangladesh has been
identified as one of those regions that would be mostly
affected by global climate change. As a result, farming
systems have been seriously disrupted with few coping
mechanisms that are never suitable to adjust with the new
situation. Shrimp seed supply is the main input of shrimp
farming. At the initial stage shrimp fry from wild sources was
only the source of this input with the expansion of the shrimp
farms. The demand of fry increased very rapidly depending on
the hatcheries for artificial PL production. On the basis of this
demand shrimp fry collection from the wild sources has now
become popular occupation. Majority of the people of the fry
collector in the study area possess some land property and
homestead pond and they also interested to take aquaculture
and agriculture as their alternative livelihood options.
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