The document summarizes the traditional marketing channel of dried fish in Digha coast, West Bengal. It describes the fish drying process used in structures called khatis. Various fish species collected are dried and sold through a marketing channel. Fishermen and fish processors have low profits due to many middlemen and issues like lack of market access and high transportation costs. The document recommends improving infrastructure, hygiene, and transportation to enhance the quality and profitability of dried fish production.
These topic contains global scenario of aquaculture, demand consumption scenario and present status of aquaculture in India. These presentation also contain constraints, future prospects and challenges in aquaculture. Different aquaculture practices throughout the world.
These topic contains global scenario of aquaculture, demand consumption scenario and present status of aquaculture in India. These presentation also contain constraints, future prospects and challenges in aquaculture. Different aquaculture practices throughout the world.
A SEMINAR ON INDUCING AGENTS OF HYPOPHYSATIONKartik Mondal
The precise combination of environmental factors required for maturation, ovulation and spawning.
However, quite often, under farm conditions, the requisite environmental factors are either not available or do not persist for sufficient length of time for spontaneous maturation to occur.
The pioneering discovery of B.A. Houssay (1931) and Von Ihering (1935, 1937, Argentina) that fishes can be induced to spawn by injecting pituitary homogenates has somewhat mitigated the problem.
The principal advantage of this technique, referred to in aquaculture parlance as “Hypophysation.”
.DEFINITION OF FISH PHARMACOLOGY:
“Fish pharmacology is essential for undertaking treatment of fishes using any therapeutic chemicals or drugs.”
“Pharmacology is the study of the interaction of chemicals with living system.”
“Pharmacology” is morden science which correlated other biological sciences, eg., Biochemistry , Physiology Microbiology , Medicine , and Genetics.
“Pharmacology is the branch of biology concerned with the study of drug action.”
“Pharmacology is the study of drugs including their origins, history, uses, and properties. It mainly focuses on the actions of drugs on the body.”
“Pharmacology is the study of drugs and theire actions on the body”.
“Pharmacology is the study of substance that interact with living systems through chemical process, especially by binding to regulatory molecules &activating or inhibiting normal body process.
Fig. 1
3. HISTORY OF FISH PHARMACOLGY:
Pharmacology emerged as its own discipline in the 19th Century, branching off from research done in fields of science such as organic chemistry and physiology. Oswald Schmiedeberg, who was born in what is now Latvia in 1838, is considered the father of pharmacology. His doctoral thesis was on the measurement of chloroform levels in blood, and he went on to become a professor of pharmacology at the University of Strasburg, where he ran an institute of pharmacology. There, he studied chloroform, which was used as an anesthetic, chloral hydrate, a sedative and hypnotic, and muscarine, a compound isolated from the mushroom Amanita muscaria that stimulates the parasympathetic nervous system and has been used to treat various diseases such as glaucoma.
In 1890, John Jacob Abel became the first pharmacology chair in the United States, at the University of Michigan. He later went to Johns Hopkins University in Baltimore. Abel was the first to isolate the hormone epinephrine from the adrenal gland, isolate histamine from the pituitary gland, and make pure crystalline insulin. Animals such as dogs, cats, pigeons, and frogs were used to test pharmacological substances. Humans were even used as test subjects. Sometimes they suffered through severe adverse effects from these substances, such as when the German pharmacist Friedrich Serturner and three of his friends had poisoning for several days from an alkaloid that Serturner had isolated from opium. This alkaloid was later named morphine, after the Ancient Greek god of sleep, Morpheus.
Oswald Schmiedeberg was a brilliant scientist. He studied the pharmacology of various compounds, including chloroform, and published an important text called the Outline of Pharmacology. There, he studied chloroform, which was used as an anesthetic, chloral hydrate, a sedative and hypnotic, and muscarine, a compound isolated from the mush to the field, Schmiedeberg is now known as 'the father of pharmacology'.
Present status of Fish Hatchery in BangladeshDegonto Islam
In the past decades the rivers of Bangladesh were the mentor natural source of carp seed production. Due to the destruction of natural habitats and also increase demand the natural available of carp seed has largely declined and the aquaculture venture and gradually replaced by the hatchery produced fry since early 80’s when artificial fish breeding technique and low cost hatchery design have been successful adapted in Bangladesh.
DESIGN AND CONSTRUCTION OF SHRIMP HATCHERYKartik Mondal
Shrimp is a valuable aquatic food resources high In protein and command good export markets. The tiger shrimp P.indicus and p.merguiensis are important candidate or aquafarming.The seed requirement presently meet from the wild and insufficient to meet growing demand. Hence there is a good potential for hatchery production of shrimp seed.
The success of a shrimp hatchery depend on:
1.The choice of suitable site
2.Effectiveness and efficiency of the hatchery design
3.Experience of hatchery technicians
4.Efficiency of operational management.
Fish fermentation in Lalpur, Brahmanbaria district: ecological implication an...AbdullaAlAsif1
The study was conducted to evaluate the present status of the production of traditional fermented fish product-shidal (Chapa shutki or shidol) in Lalpur, Ashuganj Union, Brahmanbaria district and its ecological implication and value chain during June to November, 2016. Shidal is produced by natural fermentation process of fresh water punti and marine phaisha and poa fish during winter (October to January). It was found that the Shidal production from freshwater fish in Lalpur has been shrinking gradually due to a decline in fish production from the Meghna River Basin and low supply of raw fishes from others areas. The fishers noted the local extinction of large numbers of once common fish with a gradually low supply of punti and a declining average size among the fishes that are still captured. It was found that not only the total volume of catch decreased but there have been a marked decline in catch per unit effort (CPUF) over the last ten years. During the fermentation season, every day 2-4 ton of raw punti are sold in Lalpur Fish Landing Center and the price of punti varies with grade, season and quality. On an average 4 kg of fresh punti produces 1.2 kg of dry punti and 1.2 kg of dry punti produces 1.44 kg of shidal. It was observed that there were two types of punti used for making shidal in Lalpur-with scales and without scales. The prices of shidal were Tk 800/kg, Tk 500/kg, and Tk 500/kg produced from punti, poa and phaisha, respectively. There are nearly 250 dangaries (fish processing place) for Shidal production and each of the danagaries produce 100-150 motkas (each motka contains 36-40 kg of shidal) of shidal in a season. One motka is sold in Tk. 20,000-24,000 when there is no salt used but Tk. 16,000 per motka when salt is used. It was found that around 2000 people were employed in Shidal production and another 200 people worked in filling in the motka in Lalpur. No chemical are used to make Shidal but some salt is applied during Shidal processing. It was observed that there was no fixed marketing channel for Shidalshutki. Seventy percent (70%) of the Shidal are produced for the domestic market. Shidal produced from small sized punti are exported to India but Shidal produced from marine fishes has never been exported. Although people prefer Shidal made from punti, but due to its gradual disappearance from the natural water bodies, they are forced to consume Shidal prepared from marine poa or phaisa.
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.
A SEMINAR ON INDUCING AGENTS OF HYPOPHYSATIONKartik Mondal
The precise combination of environmental factors required for maturation, ovulation and spawning.
However, quite often, under farm conditions, the requisite environmental factors are either not available or do not persist for sufficient length of time for spontaneous maturation to occur.
The pioneering discovery of B.A. Houssay (1931) and Von Ihering (1935, 1937, Argentina) that fishes can be induced to spawn by injecting pituitary homogenates has somewhat mitigated the problem.
The principal advantage of this technique, referred to in aquaculture parlance as “Hypophysation.”
.DEFINITION OF FISH PHARMACOLOGY:
“Fish pharmacology is essential for undertaking treatment of fishes using any therapeutic chemicals or drugs.”
“Pharmacology is the study of the interaction of chemicals with living system.”
“Pharmacology” is morden science which correlated other biological sciences, eg., Biochemistry , Physiology Microbiology , Medicine , and Genetics.
“Pharmacology is the branch of biology concerned with the study of drug action.”
“Pharmacology is the study of drugs including their origins, history, uses, and properties. It mainly focuses on the actions of drugs on the body.”
“Pharmacology is the study of drugs and theire actions on the body”.
“Pharmacology is the study of substance that interact with living systems through chemical process, especially by binding to regulatory molecules &activating or inhibiting normal body process.
Fig. 1
3. HISTORY OF FISH PHARMACOLGY:
Pharmacology emerged as its own discipline in the 19th Century, branching off from research done in fields of science such as organic chemistry and physiology. Oswald Schmiedeberg, who was born in what is now Latvia in 1838, is considered the father of pharmacology. His doctoral thesis was on the measurement of chloroform levels in blood, and he went on to become a professor of pharmacology at the University of Strasburg, where he ran an institute of pharmacology. There, he studied chloroform, which was used as an anesthetic, chloral hydrate, a sedative and hypnotic, and muscarine, a compound isolated from the mushroom Amanita muscaria that stimulates the parasympathetic nervous system and has been used to treat various diseases such as glaucoma.
In 1890, John Jacob Abel became the first pharmacology chair in the United States, at the University of Michigan. He later went to Johns Hopkins University in Baltimore. Abel was the first to isolate the hormone epinephrine from the adrenal gland, isolate histamine from the pituitary gland, and make pure crystalline insulin. Animals such as dogs, cats, pigeons, and frogs were used to test pharmacological substances. Humans were even used as test subjects. Sometimes they suffered through severe adverse effects from these substances, such as when the German pharmacist Friedrich Serturner and three of his friends had poisoning for several days from an alkaloid that Serturner had isolated from opium. This alkaloid was later named morphine, after the Ancient Greek god of sleep, Morpheus.
Oswald Schmiedeberg was a brilliant scientist. He studied the pharmacology of various compounds, including chloroform, and published an important text called the Outline of Pharmacology. There, he studied chloroform, which was used as an anesthetic, chloral hydrate, a sedative and hypnotic, and muscarine, a compound isolated from the mush to the field, Schmiedeberg is now known as 'the father of pharmacology'.
Present status of Fish Hatchery in BangladeshDegonto Islam
In the past decades the rivers of Bangladesh were the mentor natural source of carp seed production. Due to the destruction of natural habitats and also increase demand the natural available of carp seed has largely declined and the aquaculture venture and gradually replaced by the hatchery produced fry since early 80’s when artificial fish breeding technique and low cost hatchery design have been successful adapted in Bangladesh.
DESIGN AND CONSTRUCTION OF SHRIMP HATCHERYKartik Mondal
Shrimp is a valuable aquatic food resources high In protein and command good export markets. The tiger shrimp P.indicus and p.merguiensis are important candidate or aquafarming.The seed requirement presently meet from the wild and insufficient to meet growing demand. Hence there is a good potential for hatchery production of shrimp seed.
The success of a shrimp hatchery depend on:
1.The choice of suitable site
2.Effectiveness and efficiency of the hatchery design
3.Experience of hatchery technicians
4.Efficiency of operational management.
Fish fermentation in Lalpur, Brahmanbaria district: ecological implication an...AbdullaAlAsif1
The study was conducted to evaluate the present status of the production of traditional fermented fish product-shidal (Chapa shutki or shidol) in Lalpur, Ashuganj Union, Brahmanbaria district and its ecological implication and value chain during June to November, 2016. Shidal is produced by natural fermentation process of fresh water punti and marine phaisha and poa fish during winter (October to January). It was found that the Shidal production from freshwater fish in Lalpur has been shrinking gradually due to a decline in fish production from the Meghna River Basin and low supply of raw fishes from others areas. The fishers noted the local extinction of large numbers of once common fish with a gradually low supply of punti and a declining average size among the fishes that are still captured. It was found that not only the total volume of catch decreased but there have been a marked decline in catch per unit effort (CPUF) over the last ten years. During the fermentation season, every day 2-4 ton of raw punti are sold in Lalpur Fish Landing Center and the price of punti varies with grade, season and quality. On an average 4 kg of fresh punti produces 1.2 kg of dry punti and 1.2 kg of dry punti produces 1.44 kg of shidal. It was observed that there were two types of punti used for making shidal in Lalpur-with scales and without scales. The prices of shidal were Tk 800/kg, Tk 500/kg, and Tk 500/kg produced from punti, poa and phaisha, respectively. There are nearly 250 dangaries (fish processing place) for Shidal production and each of the danagaries produce 100-150 motkas (each motka contains 36-40 kg of shidal) of shidal in a season. One motka is sold in Tk. 20,000-24,000 when there is no salt used but Tk. 16,000 per motka when salt is used. It was found that around 2000 people were employed in Shidal production and another 200 people worked in filling in the motka in Lalpur. No chemical are used to make Shidal but some salt is applied during Shidal processing. It was observed that there was no fixed marketing channel for Shidalshutki. Seventy percent (70%) of the Shidal are produced for the domestic market. Shidal produced from small sized punti are exported to India but Shidal produced from marine fishes has never been exported. Although people prefer Shidal made from punti, but due to its gradual disappearance from the natural water bodies, they are forced to consume Shidal prepared from marine poa or phaisa.
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.
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.
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.
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.
Evolution of fisheries sector in BangladeshMD. ZANE ALAM
Bangladesh is a densely populated country of 147 570 km2 with a population of 160
million people. It is fortunate in having an extensive water resource in the form of ponds,
natural depressions (haors and beels ), lakes, canals, rivers and estuaries covering an area
of 47,03,658 ha .
The present per capita annual fish consumption in Bangladesh stands at about 14 kg/year
against a recommended minimum requirement of 18 kg/year; hence, there is still need to
improve fish consumption in the country.
Fisheries in Bangladesh are diverse, there are about 795 native species of fish and shrimp
in the fresh and marine waters of Bangladesh and 12 exotic species that have been
introduced. In addition, there are 10 species of pearl bearing bivalves, 12 species of
edible tortoise and turtle, 15 species of crab and 3 species of lobster.
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.
Mud crabs, also known as mangrove crabs, occur widely in estuaries and along tropical, subtropical and warm temperate coasts in the world. There are four species of mud crab (Family: Portunidae), Scylla serrata, S. tranquebarica, S. paramamosain and S. olivacea that are the focus of both commercial fisheries and aquaculture production throughout their distribution. They are among the most valuable crab species in the world, with the bulk of their commercial production sent live to market.
Growth of freshwater mud eel (Monopterus cuchia) in different water condition...AbdullaAlAsif1
An experiment was conducted to study the effect of different feeds on growth and production of freshwater Mud Eel (Monopterus cuchia) in nine aquariums over a period of 90 days during June to August 2016. Three different feeds namely Feed A (live feed), Feed B (supplementary feed) and Feed C (probiotics) were applied to treatments I, II and III respectively. Three types of water used in aquarium. These are pond water, ground water and turbid water. Each of the tanks was stocked with nine fish that's total fish amount of 27. Significantly highest weight gain was obtained in pond water, treatment III, (16.39a ± 2.35). Treatment III yielded the highest (65.56a ±9.4 g/m 2 /year) production with the highest survival rate of fish. Water quality parameters like temperature, dissolved oxygen, P H , and alkalinity were optimum. On the basis of better growth and production, it is suggested that pond water condition with probiotics are suitable for the culture of M. cuchia in aquarium.
Bangladesh fishery industry has essential contribution the agricultural GDP and total export value,and its modern fish processing industry needs new fish processing equipment and technologies.
Impact of stocking common carp (Cyprinus carpio) on production in some select...AbdullaAlAsif1
The present study was conducted in three seasonal beels in Gacha union under Gazipur sadar upazila in Gazipur district during the period from June 2015 to January 2016. The objectives of the study were to evaluate the impact of stocking common carp on the abundance and biodiversity of native fish species in seasonal beels. Three seasonal beels such as Baroholai, Makhna and Buridha which were connected with Turag River through different canals were selected to implement the study. Baroholai and Makhna beel were stocked with common carp fingerlings at 2500 per hectare. Buridha beel served as control. Necessary data were collected from the fishermen and lease holders of the concern beel through using structured questionnaire by survey method. A total of 42-43 species of fishes were recorded from stocked beel as against of 43 species in control beel. Shanon-Weiner diversity index averaged 2.58 in stocked beel as opposed to 2.68 for control beel. The studied beel had medium richness in terms of biodiversity and faunal abundances. Per hectare fish production was 522-577kg in stocked beels as compared to 365kg in control beel. Cyprinidae was the most abundant group contributing to the bulk of fishery yield. Surface feeder took a lead over other groups of fishes in stocked beel as opposed to bottom feeder in case of control beel. Bottom dwelling small catfishes seems to be affected in presence of common carp in the stocked beels. Control beel harboured increased number and quantity of catfishes. Fish productions in the seasonal beels were profitable. Per hectare total cost of fish production averaged tk 34976.67 as against of total gross return of tk 92683.67. Benefit cost ratio (BCR) was found to be 2.57-3.42 in stocked beel and 2.01 in control beel. Further researches are needed to precisely determine the possible consequences of stocking common carp in seasonal beels.
Post-harvest handling and quality loss of Indian major carps in the distribut...AbdullaAlAsif1
Post-harvest loss of mrigal (Cirrhinus cirrhosus), catla (Catla catla), rohu (Labeo rohita) and kalibaush (Labeo calbasu) in different distribution channel of Noakhali district, Bangladesh were observed during the month of January 2015 to April 2015. Sensory evaluation method was adopted in order to gather information about quality loss of fish and existing handling condition at different stakeholder level. The observed fish were fresh at fisherman level but as the day progress along with temperature variation fish started losing quality and most of their quality found lost at retailer level. Fisherman supplied fish to beparies at 5% quality loss, further 10%, 20% and 22% loss was observed through aratder, retailer and consumer respectively. DPs varied with the month basis, compared to January-February the DPs were higher in March-April which indicates that temperature rise cause more quality loss of fish. Most of the fishes crossed DP 3.0 at retailer level because of long term exposure to open air coupled with unhygienic condition of markets. Different sizes baskets were used for transportation of fish with or without icing. Live fishes were transported with water in gallon or drum and they could retain their shelf lifelong time than that of dead fish or fish with no icing condition. The unsold fishes were preserved in refrigerator and re-icing was adopted by 70% retailer. The ice ratio of fish: ice was 1:1 in March-April and 2:1 in January February. The more quality loss of fish the more ice was used. Bad handling practices due to transportation and in markets also caused quality deterioration of some fishes. Usually post-harvest loss of fish is not taken under the consideration which eventually because economic loss coupled with food insecurity but proper steps to reduce loss can compensate the post-harvest fish loss.
How to Run Landing Page Tests On and Off Paid Social PlatformsVWO
Join us for an exclusive webinar featuring Mariate, Alexandra and Nima where we will unveil a comprehensive blueprint for crafting a successful paid media strategy focused on landing page testing.With escalating costs in paid advertising, understanding how to maximize each visitor’s experience is crucial for retention and conversion.
This session will dive into the methodologies for executing and analyzing landing page tests within paid social channels, offering a blend of theoretical knowledge and practical insights.
The Pearmill team will guide you through the nuances of setting up and managing landing page experiments on paid social platforms. You will learn about the critical rules to follow, the structure of effective tests, optimal conversion duration and budget allocation.
The session will also cover data analysis techniques and criteria for graduating landing pages.
In the second part of the webinar, Pearmill will explore the use of A/B testing platforms. Discover common pitfalls to avoid in A/B testing and gain insights into analyzing A/B tests results effectively.
Monthly Social Media News Update May 2024Andy Lambert
TL;DR. These are the three themes that stood out to us over the course of last month.
1️⃣ Social media is becoming increasingly significant for brand discovery. Marketers are now understanding the impact of social and budgets are shifting accordingly.
2️⃣ Instagram’s new algorithm and latest guidance will help us maintain organic growth. Instagram continues to evolve, but Reels remains the most crucial tool for growth.
3️⃣ Collaboration will help us unlock growth. Who we work with will define how fast we grow. Meta continues to evolve their Creator Marketplace and now TikTok are beginning to push ‘collabs’ more too.
Digital Commerce Lecture for Advanced Digital & Social Media Strategy at UCLA...Valters Lauzums
E-commerce in 2024 is characterized by a dynamic blend of opportunities and significant challenges. Supply chain disruptions and inventory shortages are critical issues, leading to increased shipping delays and rising costs, which impact timely delivery and squeeze profit margins. Efficient logistics management is essential, yet it is often hampered by these external factors. Payment processing, while needing to ensure security and user convenience, grapples with preventing fraud and integrating diverse payment methods, adding another layer of complexity. Furthermore, fulfillment operations require a streamlined approach to handle volume spikes and maintain accuracy in order picking, packing, and shipping, all while meeting customers' heightened expectations for faster delivery times.
Amid these operational challenges, customer data has emerged as an important strategy. By focusing on personalization and enhancing customer experience from historical behavior, businesses can deliver improved website and brand experienced, better product recommendations, optimal promotions, and content to meet individual preferences. Better data analytics can also help in effectively creating marketing campaigns, improving customer retention, and driving product development and inventory management.
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Traditional marketing channel of dry fish in digha coast of west bengal
1. Presented by-
Soumyadip Purkait
Roll No.- M/F/2016/19
M.F.Sc 2nd Year
Dept. of Fishery Economics and Statistics
F.F.Sc, W.B.U.A.F.S.
Traditional marketing channel of dry fish in Digha
coast of West Bengal
Major Advisor: Prof. S. Sahu
2. Introduction
Study area
Process of dry fish production
Fish species
Comparison of prices in different raw and dried fishes
Weight losses during drying
Order wise rate of different fishes used in sun drying
Percentage of seasonal supply
Fish rate in Marketing channel
Marketing channel
Transportation
Recommendation
Conclusion
Bibliography
Contents
3. India is the second largest fish producing country with the
contribution of 5.43% in global fish production (FAO, 2012) and
West Bengal is the second largest fish producing state of India
(DADF, 2016).
West Bengal has a coastline of 157.5 km and covers mainly
the districts of South and North 24 Parganas and Purba
Medinipur (Dan, 1985).
Fish is an important part of the regular diet and is a cheap
source of protein for the peoples of West Bengal.
Introduction
4. About 78% of total fish catch is consumed in fresh
condition, 6% is used as dry fish and rest is used as frozen
fish. Indian dry fish export contributes 8% of all form of fish
exports and earned 754 crores during 2012-2013 (MPEDA,
2013).
The nutritional quality of dried fish remains intact,
sometimes retains higher quality standards compared to fresh
fish (Faruque et al., 2012).
5. FISH DRYING
Marine fish drying is very common in the entire coast of
India. In West Bengal this practice is quite common in 24
Parganas (South and North) and Purba Medinipur.
Dried fishes have demand both in domestic and
international market and plays an important role in
employment generation of coastal poor people (Goswami et
al., 2002).
In dry fish marketing channel, people involved early in the
production chain (fishing and drying) add relatively more
value and make little profit due to small scale production,
poor product quality, lack of market access and high
transportation cost/toll/taxation etc. ( Nowsad,2007).
6. Egra regulated dry fish market, Purba Medinipur, West
Bengal is the largest regulated dry fish market of West
Bengal, India (Ghorai et al., 2014). Different kinds of
dried fish from all dry fish processing area of coastal
West Bengal (Digha Mohona, Sankarpur, Jaldakhoti,
Junput, Sagar Island) and Odisha usually come to this
market. These dried fish later supplied to different
markets such as Assam, Siliguri, Odisha, Bihar and
some other parts of India and abroad.
7. Khatis
Figure. 1 Figure. 2
Fish drying units of West Bengal are locally called as Khatis.
In Khatis (Figure. 1,2) fishes are dried under natural sunlight
in bamboo poles in the coastal areas. The drying is dependent
on the method of hanging, intensity of sunlight, air flow and
humidity.
8. Raw fishes are purchased from the market (auction) and
transported to the khati for further procurement as and
when required. This kind of activities mainly observed in
Jaldha and Junput khaties.
Dry fishes are prepared through the process of
washing and followed by salting in a separate chamber or
direct application of salt. The dry fish producers used salts
to remove the water from the fish body and dried under
direct sunlight on chhambra. The amounts of salts are
used 3-4 kg /100 kg of raw fish.
Drying in khatis
9. After salting, fishes are kept in the bamboo made
structure called pata for the drying of fishes. Pata are
changed in every 2-3 years. Fishes generally takes 3 to 7
days for complete drying. If there is not sufficient
sunlight due to cloudy weather then the length of drying
time may increase up to one fortnight. After complete
drying, dried fishes are stored in the jute bag, locally
called ‘chat bosta’. After preparation of dry fishes, these
are purchase by the Paikers or Beparis from the khati
owners.
10. Every khati also produces fish meal from the trash fishes
of low market price. During the period of fish meal
preparation fishermen used to dump them on to the
ground and spreading them by the locally wooden made
instrument known as pata. After drying the fishermen
grind the trash fish and sieving them with large mesh
sized (3.0-4.0 cm) sieve and then by the small mesh sized
(0.5-2.0 cm) sieve respectively. After fish meal
preparation fishermen kept them in chat bosta and sell
them to the Baparis. In fish meal preparation raw fishes
are collected @ Rs.5-7/kg and after preparation of fish
meal it is sold @ Rs.80-90/kg depending upon their
quality.
13. • Below table indicate the total area of the khati, number of
fishermen involved in the khati and their sources of raw fish
collections.
Name of the
Khati
Total area of
the
Khati
(acre)
Total number
of
Fishermen
involved
(approx.)
Source of the raw fish species
Sankarpur khati 4-5 2,000-2,500
Digha mohana and deep sea fishing
Jaldha khati 20 3,000-4,500
Digha mohana and fishing with their
own boat
Digha mohana
khati
5-6 1,500-3,000
Digha mohana
Junput-salua
khati
17 2,500-3,000
Digha mohana and fishing with their
own boat
Petuaghat khati 4-5 1,500-2,000 Petuaghat jette
(Payra et al., 2016)
14. • 19 species are use for the production of dry fish, out of which 16 are
finfishes and rest of them were shell fishes. The different types of
fish species which are used in dry fish production are harvested by
the fishermen in the coastal region of the West Bengal and their
details like systematic position, vernacular name and area of
collection are as below.
Fish species
16. Species
Average price of
the raw fish/kg.
(Rs.)
Average price of the
dried fish/kg. (Rs.)
Lepturacanthus savala 15 80
Liza persia 50 140
Opisthopterus tardoore 40 90
Coilia dussumieri 40 95
Panna microdon 25 70
Harpadon nehereus 10 120
Sillago sihama 15 70
Corica soborna 20 110
Satipinna phasa 25 75
Arius sp 30 90
Upeneus sulphureus 20 85
Nemipterus japonicus 22 75
Chirocentrus dorab 20 80
Scomberomorus guttatus 25 90
Drepane punctata 20 80
Cynoglossus sp 15 90
Metapenaeus toluensis 20 90
Penaeus semisulcatus 10 100
Metapenaeus monoceros 15 85
(Payra et al., 2016)
17. Comparison of prices in different raw and dried fishes
0
20
40
60
80
100
120
140
160
Average price of the raw fish/kg.(Rs.)
Average price of the dried fish/kg. (Rs.)
Price/kg
18. 0
20
40
60
80
Fin-fish
Shell-fish
Average price of the
raw fish/ Kg
Average price of
the dried fish/ Kg
The raw fishes are collected mainly from the fish landing centre of
Digha mohana and Petuaghat at a comparatively low price and sold in
the market after processing at comparatively high price. The average
price of raw fin fish and shellfish is around Rs. 20/- and Rs. 10/-
respectively. The average price of dried fin fish and shell fish is around
Rs. 80/- and Rs. 60/-respectively.
Average price variation in drying
19. Order wise rate of different fishes used in sun drying
The figure shows that the Order- Aulopiforms is sold at high
price (approx. Rs. 120/-) in the market and the Order-
Siluriformes is sold at low price (approx. Rs. 70/-) in the
market.
25 30
20
50
10 12 10
90 85
70
110
120
75
65
Average price of the raw fish/kg.(Rs.) Average price of the dried fish/kg. (Rs.)
20. 74%
14%
12%
Oct-Jan
Feb-May
Jun-Sep
Due to the recent application of deep sea trawling system
by the fishermen of coastal West Bengal, a good quantity of
marine fish is available in the market. Availability of
species varies from season to season. Most variety is found
in winter season than summer season and others.
% of Seasonal Supply
23. Average monthly quantity
(in tonnes)
Average monthly cost (in lakhs)
Operating Cost
Raw fish 20 4.40
Salt 7 0.27
Wages for Pre drying operations
(gutting andcleaning)
20 0.20
Wages for spreading the fish 20 0.56
Total monthly operating cost 5.43
Total annual operating cost 48.86
Fixed cost
Annualised fixed cost for drying yard
materials (in lakhs)
0.04
Depreciation 0.08
Total monthly cost (in lakhs) 5.55
Total annual cost (in lakhs) 49.99
Revenue
Gross monthly output (in tonnes) 6.7
Gross monthly revenue (in lakhs) 7.11
Gross annual output (in tonnes) 60
Gross annual revenue (in lakhs) 64
Profit
Gross annual profit (in lakhs) 14.01
Profit analysis in fish drying
(Salim et
al., 2016)
24. Mode of transportation
In general the fish drying farms are located in the
coastal areas. After drying they are purchased by
Beparis and Aratdars. Here the means of transport
is either mechanized vans or small trucks. Aratdars
sale the collected dried fishes to wholesalers in the
market. Here big trucks are used for the
transportation system.
25. To improve the quality standards of dried fishes and avoid the
long term impact of human health following to be considered:
Special concerns are to be needed to maintained hygienic
condition in an around of the Khati area.
The poor infrastructure facility of the fish drying units needs scientific
and modern equipment.
The dry fish producers should keep in mind to avoid the use of different
harmful insecticides and pesticides to consider the human health impact.
Fish drying chambers should be periodically cleaned and
washed to avoid any contamination.
The road and transport facilities should improve to expedite the
transportation system.
Proper packaging is also a area to be addressed.
Recommendation
26. Several middlemen in the marketing channel of the
dried fish is the major cause of price increase, although
the producers are deprived from the actual high profit.
In order to solve this problem government intervention
towards the marketing process along with co-operative
structure where ever needed can be formed for direct
marketing and export of the dried fish from the khati.
27. The dried fishes play important role in the upliftment of
socio-economic condition of the rural area of the West
Bengal. The dry fish marketing is a profitable business for
small scale dry fish producers of the coastal area of the Bay
of Bengal. The quality of the dried product could be
improved though making awareness among the fishermen
to use high quality water and salt. The introduction of
simple dry fish equipment like- solar or artificial drier for
processing can avoid the contamination. However, special
emphasis are to be needed to prevent the use of different
harmful pesticides / insecticides during the preparation of
dry fishes through the state Government.
Conclusion
28. Balachandran KK. Post-harvest Technology of Fish and Fish Products, Daya
Publishing House, Delhi, 2001, 77.
Cutting CL. Fish processing and preservation. H.S. Offset Press, Daryagunj,
New Delhi, 1996, 1-2.
Dan SS. Marine fishery of West Bengal coast. Marine Fisheries Information
Service, Technical and Extension Series. 1985; 63:6-8.
FAO. Global Aquaculture Production Statistics for the year, 2011.
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FAO. Global Aquaculture Production Statistics for the year, 2014.
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FAO. The State of World Fisheries and Aquaculture, 2014, 223.
Faruque MO, Nazrul KMS, Tonny US, Islam KR, Dey SC, Mona SJ et al.
Status of an ideal dry fish market of Bangladesh: A Study on
Asadganj Dry Fish Market, Chittagong. International Journal of Life
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