Fish farming is the principal form of aquaculture, while other methods may fall under mariculture. Fish farming involves raising fish commercially in tanks or enclosures, usually for food. A facility that releases juvenile fish into the wild for recreational fishing or to supplement a species' natural numbers is generally referred to as a fish hatchery. Worldwide, the most important fish species used in fish farming are carp, salmon, tilapia and catfish.
There is an increasing demand for fish and fish protein, which has resulted in widespread overfishing in wild fisheries. Fish farming offers fish marketers another source. However, farming carnivorous fish, such as salmon, does not always reduce pressure on wild fisheries, since carnivorous farmed fish are usually fed fishmeal and fish oil extracted from wild forage fish. The global returns for fish farming recorded by the FAO in 2008 totalled 33.8 million tonnes worth about $US 60 billion.
Specific types of fish farms[edit source | editbeta]
Within intensive and extensive aquaculture methods, there are numerous specific types of fish farms; each has benefits and applications unique to its design.
Cage system[edit source | editbeta]
Giant gourami is often raised in cages in central Thailand
Fish cages are placed in lakes, bayous, ponds, rivers or oceans to contain and protect fish until they can be harvested. The method is also called "off-shore cultivation[7] " when the cages are placed in the sea. They can be constructed of a wide variety of components. Fish are stocked in cages, artificially fed, and harvested when they reach market size. A few advantages of fish farming with cages are that many types of waters can be used (rivers, lakes, filled quarries, etc.), many types of fish can be raised, and fish farming can co-exist with sport fishing and other water uses. Cage farming of fishes in open seas is also gaining popularity. Concerns of disease, poaching, poor water quality, etc., lead some to believe that in general, pond systems are easier to manage and simpler to start. Also, past occurrences of cage-failures leading to escapes, have raised concern regarding the culture of non-native fish species in open-water cages. Even though the cage-industry has made numerous technological advances in cage construction in recent years, the concern for escapes remains valid.
Main article: Copper alloys in aquaculture
Recently, copper alloys have become important netting materials in aquaculture. Copper alloys are antimicrobial, that is, they destroy bacteria, viruses, fungi, algae, and other microbes. In the marine environment, the antimicrobial/algaecidal properties of copper alloys prevent biofouling, which can briefly be described as the undesirable accumulation, adhesion, and growth of microorganisms, plants, algae, tube worms, barnacles, mollusks, and other organisms.
S.S. Presents
Made By Siddhartha Satyakama.
Fish farming is the principal form of aquaculture, while other methods may fall under mariculture. Fish farming involves raising fish commercially in tanks or enclosures, usually for food. A facility that releases juvenile fish into the wild for recreational fishing or to supplement a species' natural numbers is generally referred to as a fish hatchery. Worldwide, the most important fish species used in fish farming are carp, salmon, tilapia and catfish.
There is an increasing demand for fish and fish protein, which has resulted in widespread overfishing in wild fisheries. Fish farming offers fish marketers another source. However, farming carnivorous fish, such as salmon, does not always reduce pressure on wild fisheries, since carnivorous farmed fish are usually fed fishmeal and fish oil extracted from wild forage fish. The global returns for fish farming recorded by the FAO in 2008 totalled 33.8 million tonnes worth about $US 60 billion.
Specific types of fish farms[edit source | editbeta]
Within intensive and extensive aquaculture methods, there are numerous specific types of fish farms; each has benefits and applications unique to its design.
Cage system[edit source | editbeta]
Giant gourami is often raised in cages in central Thailand
Fish cages are placed in lakes, bayous, ponds, rivers or oceans to contain and protect fish until they can be harvested. The method is also called "off-shore cultivation[7] " when the cages are placed in the sea. They can be constructed of a wide variety of components. Fish are stocked in cages, artificially fed, and harvested when they reach market size. A few advantages of fish farming with cages are that many types of waters can be used (rivers, lakes, filled quarries, etc.), many types of fish can be raised, and fish farming can co-exist with sport fishing and other water uses. Cage farming of fishes in open seas is also gaining popularity. Concerns of disease, poaching, poor water quality, etc., lead some to believe that in general, pond systems are easier to manage and simpler to start. Also, past occurrences of cage-failures leading to escapes, have raised concern regarding the culture of non-native fish species in open-water cages. Even though the cage-industry has made numerous technological advances in cage construction in recent years, the concern for escapes remains valid.
Main article: Copper alloys in aquaculture
Recently, copper alloys have become important netting materials in aquaculture. Copper alloys are antimicrobial, that is, they destroy bacteria, viruses, fungi, algae, and other microbes. In the marine environment, the antimicrobial/algaecidal properties of copper alloys prevent biofouling, which can briefly be described as the undesirable accumulation, adhesion, and growth of microorganisms, plants, algae, tube worms, barnacles, mollusks, and other organisms.
S.S. Presents
Made By Siddhartha Satyakama.
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.
SYSTEMATIC POSITION of clams
What is the difference between mussels, oysters, scallops and clams?
General characteristics of clams
Distribution and habitat of clams
BIOLOGY of clams
Breeding habit of clams
Present status of production
Craft and gear
Clams have two symmetrical shells(Bivalve)
They can filters their food
Clams can control their outer shells and shut them in response to stimuli, via a elastic ligament and two large muscles
In side their usually grey, black shells you can see a white, tan center
Clams have siphons that forces water out and allows them to take in micro organisms
There are over 150 edible species.There are over 15,000 species of clams.Small freshwater clams fertilize eggs in a pouch and bear their young until its shell develops.
The Giant clam can weigh more than 400lb and live for over 150 years.
It takes 3-4 years for a clam to mature to market size.
Some clams can produce pearls.One in 5,000 clams forms a pearl.
A clam can live until about 35 years if not eaten.
distribution:
Marine clams are abundant in the low and mid intertidal zone in temperate seas globally. Other species of marine mussel live in tropical intertidal areas, but not in the same huge numbers as in temperate zones.
Certain species of marine clams prefer salt marshes or quiet bays, while others thrive in pounding surf, completely covering wave-washed rocks. Some species have colonized abyssal depths near hydrothermal vents. The South African white mussel exceptionally doesn't bind itself to rocks but burrows into sandy beaches extending two tubes above the sand surface for ingestion of food and water and exhausting wastes.
Freshwater clams inhabit permanent lakes, rivers, canals and streams throughout the world except in the polar regions. They require a constant source of cool, clean water. They prefer water with a substantial mineral content, using calcium carbonate to build their shells.
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.
The accessibility of fish in the market relies upon the interest and supply of fish in the market transport and communication facilities and period of catch and culture of fish. A total of 26 fish species such types Indian major carp, catfish, exotic carp etc are available in the market. From the study it was observed that the dominant portion of the market following carp 50%, shrimp & prawn 20%, catfish 8%, Tilapia 10% and other species 12% represented species. Carp fishes were dominant in the studied market because of the market location where carp species are cultured very much. It also observed that Rui, Catla, kalibaus, mrigal, minor carp,common carp,silver carp,grass carp, bighead carp ,pangas, tilapia, bagda and galda were most available in the market because of those species has the highest demand in the market. Fish marketing channel in fish market completely managed, supported, financed and controlled with rules by traditional, diligent and skillful middlemen. The present study it was observed the (faria) carried the fish from fish farmers to the markets by their own or hired transport and sell them to aratdars or the fish farmers carried their catches sell them to aratdars and sell it to wholesalers. Farmer/fishermen also sell directly to the wholesaler. In a very rare case, farmers carry the fishes to the markets and sell them to the retailers or consumer. Several problem of fisherman and consideration sanitation, water supply, hygienic condition, drainage facilities and insufficient ice facilities all over the fish market and there are lack of preservation facilities & shortage of ice supply are in turn affects the quality of fish. The fish farmer’s education background is not satisfactory because five farmers asked them education level to four farmers were up to the eight grade and one person was passed B.Com whose name is Tapas Sarkar.
The cold water fisheries deal with fisheries activity in water where temperature of water ranges from 5 to 25 degrees centigrade. The water temperature under cold water fisheries should not be more than 25°C even in summer. Such conditions in India occur in Himalayan and peninsular regions.
9 Finest Coldwater Aquarium Fish
Orangethroat Darter.
Three-Spined Stickleback.
Orange-Spotted Sunfish.
Diamond Sturgeon.
Siberian Sturgeon.
Sterlet.
Fathead Minnow.
Southern redbelly dace.
Tench.
Rosy Barb. Hailing from Afghanistan and Bangladesh, this little fish is tolerant of temperatures in …
Gold Barb. The gold bard, or Chinese barb, is an extremely popular cold-water fish. Any aquarium …
Two Spot Barb. This fish hails from Nepal, India, and Pakistan. The omnivorous two spot barb …
Bloodfin Tetra. Natives to Southern Brazil and Paraguay, both the standard bloodfin .
Coldwater fish in terms of the aquarium trade refers to any fish species that prefer cooler water temperatures. The optimal temperatures for these fish hover around the 68-degree mark, although each species’ temperature range may vary from the norm.
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.
SYSTEMATIC POSITION of clams
What is the difference between mussels, oysters, scallops and clams?
General characteristics of clams
Distribution and habitat of clams
BIOLOGY of clams
Breeding habit of clams
Present status of production
Craft and gear
Clams have two symmetrical shells(Bivalve)
They can filters their food
Clams can control their outer shells and shut them in response to stimuli, via a elastic ligament and two large muscles
In side their usually grey, black shells you can see a white, tan center
Clams have siphons that forces water out and allows them to take in micro organisms
There are over 150 edible species.There are over 15,000 species of clams.Small freshwater clams fertilize eggs in a pouch and bear their young until its shell develops.
The Giant clam can weigh more than 400lb and live for over 150 years.
It takes 3-4 years for a clam to mature to market size.
Some clams can produce pearls.One in 5,000 clams forms a pearl.
A clam can live until about 35 years if not eaten.
distribution:
Marine clams are abundant in the low and mid intertidal zone in temperate seas globally. Other species of marine mussel live in tropical intertidal areas, but not in the same huge numbers as in temperate zones.
Certain species of marine clams prefer salt marshes or quiet bays, while others thrive in pounding surf, completely covering wave-washed rocks. Some species have colonized abyssal depths near hydrothermal vents. The South African white mussel exceptionally doesn't bind itself to rocks but burrows into sandy beaches extending two tubes above the sand surface for ingestion of food and water and exhausting wastes.
Freshwater clams inhabit permanent lakes, rivers, canals and streams throughout the world except in the polar regions. They require a constant source of cool, clean water. They prefer water with a substantial mineral content, using calcium carbonate to build their shells.
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.
The accessibility of fish in the market relies upon the interest and supply of fish in the market transport and communication facilities and period of catch and culture of fish. A total of 26 fish species such types Indian major carp, catfish, exotic carp etc are available in the market. From the study it was observed that the dominant portion of the market following carp 50%, shrimp & prawn 20%, catfish 8%, Tilapia 10% and other species 12% represented species. Carp fishes were dominant in the studied market because of the market location where carp species are cultured very much. It also observed that Rui, Catla, kalibaus, mrigal, minor carp,common carp,silver carp,grass carp, bighead carp ,pangas, tilapia, bagda and galda were most available in the market because of those species has the highest demand in the market. Fish marketing channel in fish market completely managed, supported, financed and controlled with rules by traditional, diligent and skillful middlemen. The present study it was observed the (faria) carried the fish from fish farmers to the markets by their own or hired transport and sell them to aratdars or the fish farmers carried their catches sell them to aratdars and sell it to wholesalers. Farmer/fishermen also sell directly to the wholesaler. In a very rare case, farmers carry the fishes to the markets and sell them to the retailers or consumer. Several problem of fisherman and consideration sanitation, water supply, hygienic condition, drainage facilities and insufficient ice facilities all over the fish market and there are lack of preservation facilities & shortage of ice supply are in turn affects the quality of fish. The fish farmer’s education background is not satisfactory because five farmers asked them education level to four farmers were up to the eight grade and one person was passed B.Com whose name is Tapas Sarkar.
The cold water fisheries deal with fisheries activity in water where temperature of water ranges from 5 to 25 degrees centigrade. The water temperature under cold water fisheries should not be more than 25°C even in summer. Such conditions in India occur in Himalayan and peninsular regions.
9 Finest Coldwater Aquarium Fish
Orangethroat Darter.
Three-Spined Stickleback.
Orange-Spotted Sunfish.
Diamond Sturgeon.
Siberian Sturgeon.
Sterlet.
Fathead Minnow.
Southern redbelly dace.
Tench.
Rosy Barb. Hailing from Afghanistan and Bangladesh, this little fish is tolerant of temperatures in …
Gold Barb. The gold bard, or Chinese barb, is an extremely popular cold-water fish. Any aquarium …
Two Spot Barb. This fish hails from Nepal, India, and Pakistan. The omnivorous two spot barb …
Bloodfin Tetra. Natives to Southern Brazil and Paraguay, both the standard bloodfin .
Coldwater fish in terms of the aquarium trade refers to any fish species that prefer cooler water temperatures. The optimal temperatures for these fish hover around the 68-degree mark, although each species’ temperature range may vary from the norm.
Small scale fishers in responsible fishing and conservation of Aquatic resouc...B. BHASKAR
Introduction to world small scale fisheries production and contribution in fishermen and fisher women livelihoods nutritional security, employment generation, Indian small scale fisheries, state wise major artisanal crafts and gears, fish catch. Small scale fishermen inCo management. Challanges in marine and inland small scale fisheries, case studies
Present status of FIsheries sector and Potential for sustainable Aquaculture ...B. BHASKAR
Indian marine and Inland Fisheries resources, and their production potential, fishermen livelihoods, seed production,Inland and marine fish production since 1980' to 2021-22 and State wise per capita consumption, exports, fisheries contribution in GDP, achivements status of PMMSY and potential for mari culture and brackish water fish farming.
Marine & Coastal Fisheries Resources of Bay of BengalMishal Roy
Presentation about marine and coastal resources of bay of bengal in Bangladesh. Submission date: 14th March, 2017. Course: Fisheries Resources; Code: FISH-117.
A comparative study on fish biodiversity with conservation measures of the Bh...AbdullaAlAsif1
The present study was concerned to assess the present status of biodiversity in the Bhairab river, Jessore with its conservation measures. The study was based on primary observations, questionnaire interviews with 50 fishers, focus group discussions with river bank community members and cross-check interviews with key informants. The study was conducted for a period four months from May to August, 2016. The objective of the study was to assess the fish biodiversity in the Bhairab river, understand the existing fishing practices of the river and to identify proper management strategies for the conservation of fish biodiversity. Results of the study revealed that three kinds of fishers were engaged in the Bhairab river namely, professional fishers; seasonal fishers and subsistence fishers. Seven types of fishing gears like seine net, gill net, cast net, push net, lift net, trap and hook and line were operated to fish by the fishers during the survey. A total of 39 species of fish were identified in the catches of the Bhairab River. There are degraded ecosystems and declining biodiversity have found during the study. According to survey, fishing pressure and over fishing were responsible for almost 38% loss and pollution and siltation caused about 27% loss of ecosystem. Around 21% and 14% loss of ecosystem were caused by urbanization and human encroachment, and the recreational activities respectively. These have been created a great impact on river ecology. As a result, the water quality is deteriorating day by day and the availability of fish species and other aquatic biodiversity is decreasing gradually. During the survey, 20 species was found at a risk of being endangered. From the survey, it was found that the overexploitation of fish was responsible for the 40% losses of biodiversity in the Bhairab River and water pollution caused 35% loss of biodiversity. Henceforth, river course change and habitat degradation resulted in 15% and 10% loss of biodiversity of the river respectively. This study was identified possible ways to achieve a rich fish biodiversity in the Bhairab River with social, economic and environmental aspects. The specific recommendations are included community based fisheries management, establishment of sanctuary, control of pollution, maintenance of fishing gears and the implementation of fish act for conservation of fish biodiversity of the Bhairab River.
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.
A Review on Fish Production Scenario of Cooch Behar District in West BengalBRNSS Publication Hub
Pisciculture is an important livelihood of the farmers of Cooch Behar district. Farmers of Cooch Behar district cultivated different type fish. Majority of the farmers cultivated fish in a small pond. The study was conducted in Cooch Behar district to know the fish production scenario and the role of different organization on livelihood improvement of fish farmer. The study was conducted during January 2017–April 2017. The study was conducted with the help of secondary source of information. It was found from the study that different government organization like State Department, Krishi Vigyan Kendra, and NGO actively work on pisciculture in Cooch Behar. Farmers were used different type indigenous technology. A strengths, weaknesses, opportunities, and threats analysis was shown for guiding the policymaker, scientist, and different government and non-government organization for implementation any pisciculture project or program.
AcomparativestudyonfishbiodiversitywithconservationmeasuresoftheBhairabriverJ...Overall, the PDF
Porém, uma vez que possui certa lógica através de cada número que é passado, esse é um jeito mais seguro de apostar que apenas jogar em qualquer número aleatório e torcer por sorte.
Como podemos ver, o palpite do kaledri para hoje é palpite versátil para aqueles que buscam palpites e interessantes para apostar.
In terms of global ranking, in 2008, India was second to China in total fish production; sixth in marine and inland capture fisheries (after China, Peru, Indonesia, USA, Japan); third in inland capture fisheries (after China and Bangladesh) and second in aquaculture (after China).
Destruction and mitigation.. BY DR. ABHIJIT MITRAAbhijit Mitra
Dr. Abhijit Mitra, Associate Professor and former Head, Dept. of Marine Science, University of Calcutta (INDIA) has been active in the sphere of Oceanography since 1985. He obtained his Ph.D as NET qualified scholar in 1994. Since then he joined Calcutta Port Trust and WWF (World Wide Fund), in various capacities to carry out research programmes on environmental science, biodiversity conservation, climate change and carbon sequestration. Presently Dr. Mitra is serving as the advisor of Oceanography Division of Techno India University, Kolkata. He has to his credit about 388 scientific publications in various National and International journals, and 34 books of postgraduate standards. Dr. Mitra has successfully completed about 16 projects on biodiversity loss in fishery sector, coastal pollution, alternative livelihood, climate change and carbon sequestration. Dr. Mitra also visited as faculty member and invited speakers in several foreign Universities of Singapore, Kenya, Oman and USA. In 2008, Dr. Mitra was invited as visiting fellow at University of Massachusetts at Dartmouth, USA to deliver a series of lecture on Climate Change. Dr. Mitra also successfully guided 29 Ph.D students. Presently his domain of expertise includes environmental science, mangrove ecology, sustainable aquaculture, alternative livelihood, climate change and carbon sequestration.
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.
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.
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.
The State of Kerala is abundantly rich with marine,
brackish water and fresh water resources. These water
bodies are inhabited by a wide variety of aquatic fauna &
flora and the State occupies one of the foremost positions
in the aquatic biodiversity. The long coastline and the
extensive inland waters of the State have brought people
belonging to different ethnic groups in contact with fishing
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
Executive Directors Chat Leveraging AI for Diversity, Equity, and InclusionTechSoup
Let’s explore the intersection of technology and equity in the final session of our DEI series. Discover how AI tools, like ChatGPT, can be used to support and enhance your nonprofit's DEI initiatives. Participants will gain insights into practical AI applications and get tips for leveraging technology to advance their DEI goals.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
Normal Labour/ Stages of Labour/ Mechanism of LabourWasim Ak
Normal labor is also termed spontaneous labor, defined as the natural physiological process through which the fetus, placenta, and membranes are expelled from the uterus through the birth canal at term (37 to 42 weeks
A workshop hosted by the South African Journal of Science aimed at postgraduate students and early career researchers with little or no experience in writing and publishing journal articles.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
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Assignment on fisheries management of baor
1. Assignment On:Fisheries Management of Baor
Course Title : Inland Fisheries Resources Management
Course code : FIMS-3101
Md. Akram Ullah
Lecturer
Dept. of Fisheries & Marine Science
Noakhali Science & Technology
University
Md. Khairul Islam
Roll: ASH-1502038M
Year-03, Term-01
Session:2014-15
Dept. of Fisheries& Marine Science
Noakhali Science & Technology
University
Submission Date: 15-10-2017
Dept. of Fisheries & Marine Science
2. 1
Index
Sl No. Name of content Page No.
1 Introduction 02
2 History of Baor 02
3 Features of Baor 03
4 List and area of baor 03
5 Resources of Baor 03-04
6 Baor Management in Bangladesh 04
7 Limitation 05
8 Recommendation 05
9 Conclusion 05
3. 2
Fisheries Management of Baor
Introduction:
Baors are oxbow lakes, formed by dead arms of rivers, are situated in the moribund delta of the
Ganges in western part of the country.There are about six hundred oxbow lakes in three greater
districts of Jessore, Kustia and Faridpur having many of this concentrations in greater Jessore
district. This oxbow lakes called baor, stretched from 282 hectares to the lowest 10 hectares.The
highest area of baor is contradictory because in the rainy season the areas increase a lot.There is
common property of these waterbodies, which have a high potential of production of fish
resources.
Baluhar Baor
History of Baor:
Baors present in Bangladesh in the 17th
centuries and may be ancient further.At the beginning
baors were the properties of Zamidars (Landlords) during the British colonial days (1757-1947)
and became government property after the abolition of the Zamidary system through a land
settlement act in 1951.
4. 3
Features of Baor:
1)Baors are more stagnant than beels and generally have water throughout the year.
2)The baors are very deep and the rooted vegetation is very common.
3)Baors are quite different from the beels and haors in their formation and are regarded as part of
the close water fishery resources.
4)There are 37 large oxbow lakes covering an area of about 4000 hectares and another 50 smaller
one's in the greater jessore district.
5)Their area is comparatively less(2.6% of the total culture fishery).
List and area of Baor:
Sl No. Name of District Name of Baor Area (in hector)
1 Jhinaidha Porapara 73
2 Chuadanga Benipur 19
3 Jessore Bokbhara 62
4 Faridpur Mariharnagar 05
5 Kushtia Kaliganga Badalbasha 11
Resources of Baor:
Fisheries resources:About 260 species of freshwater fishes are found in the inland water bodies
of Bangladesh. Inland fisheries alone cover an area of 4.3 million hectares of which 94%
comprise openwater capture fisheries, and only 6% close water system.The baors offer
tremendous scope and otential to augment fish production by adoption of culture-based fishery
enhancement technique.In baor, there are many fish species are found.They are Silver carp
(Hypophthalmichthys molitrix),Rui (Labeo rohita),Catla(Gibelion catla), Mrigal(Cirrhina
cirrhosis), Carpu(Cyprinus carpio), Grass carp(Ctenopharyngodon
idella ),Mola(Amblypharyngodon mola),Chanda(Chanda nama),Taki(Channa
punctatus),Shol(Channa striatus) etc.
5. 4
Agricultural resources: The rims of the baors are used for winter (boro) rice cultivation.
The flooded fields in the monsoon became rich with minerals and are very fertile. At one time,
undivided Bengal had about 15,000 varieties of cultivated rice but the germplasum
of most of them is lost leaving only about 6,000 (Khan et. al.1994). Baors are the source of
irrigation in winter. Almost every non-rice crops in Bangladesh grow in winter.
Baor Management in Bangladesh:
Over the years through government policy evolutions on the management of these pulic
waterbodies three forms of baor management have emerged as
1)Directly managed by government assistance through Department of Fisheries called Oxbow
Lake Project-1 strated operating since the early eighties.
2)Oxbow Lake Project-2 managed by fishers themselves under license to groups off listed
members for a period of fifty years and thus jointly managed by member fisheries(initially
supported by DANIDA/IFAD as a project )
3)Continuance of old system of leasing out to private bidders and thus singly managed by the
leaseholders.These are called private baor.
Many Government and Non-Government Organization also plays important role in baor
management:
Government Institutes (Departments) :
•Bangladesh Water Development Board (BWDB)
•Department of Environment
•Department of Fisheries
•Ministry of Land
•Local Government Engineering Department (LGED)
•Space Research and Remote Sensing.
Non government organizations:
Center for Natural Resource Studies
Bangladesh Center for Advanced Studies
BRAC
6. 5
Limitation :
MPO listed the following limitation to the development of the closed culture fishery in the baors.
1)Competing water users such as agriculture.
2)Lack of regularly available supply of large(15-20 cm) improved fish fingerlings for stocking.
3)Required removal of surface plants from baors.
4)Siltation.
5)Development of a management system and controlled harvest.
Recommendation:
1) Law of fisheries management should be applied properly.
2) Protect and preserve aquatic resources.
3) Reduce pollution(chemical pollution, industrial pollution etc).
4) Restore natural structure.
5) Restore ecological integrity.
6)Control of overfishing.
Conclusion :
Baor is highly productive ecology in our country.To enhance production of baor,we should apply
proper management and keep it pollution free.Various human activity destroying baor ecosystem
day by day.so, Government should take proper steps to protect baor ecology.so that, baor will
plays important role in our national economy.
Reference:
1. Fisheries Resources and Opportunities in Freshwater Fish culture in
Bangladesh(Mahmud-Ul-Ameen)
2. The Oxbow Lakes Management and its impact on the Livelihood of Fishers(Alam. S.
2003)
3. Management of Haors, Baors, and Beels in Bangladesh(Tapas Ranjan Chakraborty)
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