The document provides information on pond construction and preparation for fish farming. It discusses factors to consider for pond location and design such as soil type, water availability, and dimensions. It also outlines best practices for pond preparation including liming, fertilization, and stocking fish species. Water quality parameters like dissolved oxygen, pH, hardness, and nutrients are monitored during the growth period and harvesting occurs once fish reach the desired size. Record keeping of production data is also emphasized.
Pen culture involves holding culturable aquatic organisms in enclosed spaces surrounded by nets or fences while maintaining water flow. It originated in Asia in the early 1920s and was later introduced to freshwater lakes and reservoirs. Pens are usually built in shallow waters and consist of barriers made from various materials like concrete, wire mesh, or nylon nets. Common species cultured in pens include various carp, milkfish, tilapia, and prawns. While pen culture provides benefits like increased production and growth, it also faces challenges like damage from predators, fouling, and poor harvest recovery rates. Overall, pen culture is best suited for extensive or semi-intensive aquaculture.
Cage culture involves confining fish or shellfish within mesh enclosures in existing water bodies like ponds, rivers, and oceans. Some key advantages are the flexibility to use different water resources with minimal initial investment. However, there are also disadvantages like the need for complete diets, high risk of disease transmission due to crowding, potential for localized water quality issues, and limitations to production yields. Cage aquaculture has rapidly expanded in recent decades and continues to adapt to growing global demand through clustering cages and developing more intensive cage farming systems.
1. There are three types of reservoirs in India - small (<1000 hectares), medium (1000-5000 hectares), and large (>5000 hectares). Small reservoirs account for the largest number (19,134) and area (1.48 million hectares).
2. Indian reservoirs tend to be nutrient-rich with narrow temperature fluctuations that prevent thermal stratification in many areas. Biotic communities include phytoplankton, zooplankton, fish, and decomposers like bacteria and fungi.
3. Fish production in Indian reservoirs is low on average at 20 kg/ha compared to potential yields, with room for improvement through management practices like stocking preferred fish species.
The document discusses the construction and maintenance of a fish farm. It describes selecting a suitable location based on topography, soil type, and water supply. The ideal layout includes hatchery pits, nursery ponds, rearing ponds, and stocking ponds of different sizes. Pond maintenance involves liming to control parasites, fertilizing to increase natural food sources, and harvesting fish when they reach maturity. Proper site selection and regular pond upkeep are essential for a productive and sustainable fish farming operation.
This document provides information on monoculture fish farming techniques used in India. It discusses how monoculture farming involves raising only one type of fish species in a pond. It notes that monoculture allows for easy monitoring of fish performance but can lead to issues like water quality degradation. The document also outlines the steps involved in monoculture fish farming, including construction of ponds, breeding fish, and transferring fry and fingerlings between ponds. It provides details on suitable fish species used in Indian monoculture like various carp species.
Lecture 2. aquaculture systems methods_and_types - copyMandeep Kaur
Aquaculture involves farming aquatic animals and plants in controlled environments. There are several types of aquaculture including freshwater, brackish water, and intensive, semi-intensive, and extensive systems. Proper water quality monitoring and fertilization are important to maintain a healthy environment for growth. Common aquaculture activities include culturing fish, prawns, and shellfish through various stages from hatcheries to harvest.
This document discusses the management of nursery ponds for fish culture. It describes the pre-stocking, stocking, and post-stocking management of nursery ponds. For pre-stocking management, it discusses dewatering and drying the pond, desilting, controlling predators and weeds, liming, fertilizing, and maintaining water quality. Nursery ponds are typically stocked at 5-6 million spawn per hectare. Post-stocking management includes feeding the spawn based on their growth and harvesting fry after 15 days once they reach 20-25mm in size. The goal of nursery pond management is to nurse the hatchlings until they grow into fry that can be transferred
This document provides an overview of the design and construction of finfish hatcheries. It discusses the importance of hatcheries in aquaculture for producing fish seed out of season and improving genetics. Key factors to consider in hatchery design include the budget, production targets, site selection, and facilities like water supply and treatment systems. The document outlines various components of a hatchery such as brood fish ponds, hatchery tanks, nursery ponds, and rearing ponds. It provides details on selecting appropriate pond sizes and layout. Finally, the conclusion emphasizes that careful hatchery operation and management is needed due to the sensitivity of fry and fingerlings.
Pen culture involves holding culturable aquatic organisms in enclosed spaces surrounded by nets or fences while maintaining water flow. It originated in Asia in the early 1920s and was later introduced to freshwater lakes and reservoirs. Pens are usually built in shallow waters and consist of barriers made from various materials like concrete, wire mesh, or nylon nets. Common species cultured in pens include various carp, milkfish, tilapia, and prawns. While pen culture provides benefits like increased production and growth, it also faces challenges like damage from predators, fouling, and poor harvest recovery rates. Overall, pen culture is best suited for extensive or semi-intensive aquaculture.
Cage culture involves confining fish or shellfish within mesh enclosures in existing water bodies like ponds, rivers, and oceans. Some key advantages are the flexibility to use different water resources with minimal initial investment. However, there are also disadvantages like the need for complete diets, high risk of disease transmission due to crowding, potential for localized water quality issues, and limitations to production yields. Cage aquaculture has rapidly expanded in recent decades and continues to adapt to growing global demand through clustering cages and developing more intensive cage farming systems.
1. There are three types of reservoirs in India - small (<1000 hectares), medium (1000-5000 hectares), and large (>5000 hectares). Small reservoirs account for the largest number (19,134) and area (1.48 million hectares).
2. Indian reservoirs tend to be nutrient-rich with narrow temperature fluctuations that prevent thermal stratification in many areas. Biotic communities include phytoplankton, zooplankton, fish, and decomposers like bacteria and fungi.
3. Fish production in Indian reservoirs is low on average at 20 kg/ha compared to potential yields, with room for improvement through management practices like stocking preferred fish species.
The document discusses the construction and maintenance of a fish farm. It describes selecting a suitable location based on topography, soil type, and water supply. The ideal layout includes hatchery pits, nursery ponds, rearing ponds, and stocking ponds of different sizes. Pond maintenance involves liming to control parasites, fertilizing to increase natural food sources, and harvesting fish when they reach maturity. Proper site selection and regular pond upkeep are essential for a productive and sustainable fish farming operation.
This document provides information on monoculture fish farming techniques used in India. It discusses how monoculture farming involves raising only one type of fish species in a pond. It notes that monoculture allows for easy monitoring of fish performance but can lead to issues like water quality degradation. The document also outlines the steps involved in monoculture fish farming, including construction of ponds, breeding fish, and transferring fry and fingerlings between ponds. It provides details on suitable fish species used in Indian monoculture like various carp species.
Lecture 2. aquaculture systems methods_and_types - copyMandeep Kaur
Aquaculture involves farming aquatic animals and plants in controlled environments. There are several types of aquaculture including freshwater, brackish water, and intensive, semi-intensive, and extensive systems. Proper water quality monitoring and fertilization are important to maintain a healthy environment for growth. Common aquaculture activities include culturing fish, prawns, and shellfish through various stages from hatcheries to harvest.
This document discusses the management of nursery ponds for fish culture. It describes the pre-stocking, stocking, and post-stocking management of nursery ponds. For pre-stocking management, it discusses dewatering and drying the pond, desilting, controlling predators and weeds, liming, fertilizing, and maintaining water quality. Nursery ponds are typically stocked at 5-6 million spawn per hectare. Post-stocking management includes feeding the spawn based on their growth and harvesting fry after 15 days once they reach 20-25mm in size. The goal of nursery pond management is to nurse the hatchlings until they grow into fry that can be transferred
This document provides an overview of the design and construction of finfish hatcheries. It discusses the importance of hatcheries in aquaculture for producing fish seed out of season and improving genetics. Key factors to consider in hatchery design include the budget, production targets, site selection, and facilities like water supply and treatment systems. The document outlines various components of a hatchery such as brood fish ponds, hatchery tanks, nursery ponds, and rearing ponds. It provides details on selecting appropriate pond sizes and layout. Finally, the conclusion emphasizes that careful hatchery operation and management is needed due to the sensitivity of fry and fingerlings.
A fish hatchery is a facility where fish eggs are hatched and fish are reared through early life stages. Hatcheries provide fish seed for aquaculture and some fisheries by spawning, hatching, and caring for various fish and shellfish species. Factors to be considered in hatchery design include site selection, water supply and disposal systems, equipment selection, and developing floor plans. Tanks can be circular or rectangular and are used for rearing fish at different life stages.
Cage culture involves raising fish in mesh boxes placed in bodies of water. It originated in Cambodia about 200 years ago when cages were used to transport live fish to market. Cages are constructed with frames made of wood, plastic or steel, with floats to keep them buoyant and weights to anchor them. They come in various shapes and sizes, usually square or rectangular, and are 20-60 cubic meters. Cages are either fixed in flowing water, floating in lakes/rivers/offshore, or submerged and movable in areas prone to cyclones. Fish are fed through natural water movement and supplemental feeding of rice bran, fish meal and soybean cake. Fish production ranges from 3,000-25,000 kg
The document presents information on extensive aquaculture. It describes the characteristics of extensive aquaculture such as utilizing natural food sources with low stocking densities and production. The advantages are low costs due to no feeding requirements but disadvantages include habitat destruction and invasive species. It compares extensive and intensive aquaculture and lists references.
This document discusses the history and evolution of fish hatcheries from traditional to modern designs. It explains that traditional hatcheries used earthen pits or pots but these lacked temperature and pH control. More advanced designs in the 1970s-1980s used double cloth hatching systems or floating hapas to improve conditions. Modern hatcheries now have precise environmental control and include features like vertical jars, plastic buckets, or entire Chinese-style hatchery systems. The role of hatcheries is crucial to reliably produce high quality fish seeds for farming.
This document discusses semi-intensive fish culture systems. Semi-intensive systems involve small ponds of 0.5 to 1 hectare with stocking densities of 10,000 to 15,000 fish per hectare. These systems develop natural foods through fertilization and provide some supplemental feeding. Yields are moderate at 3 to 10 tons per hectare with high survival rates. Semi-intensive systems are preferred due to their low costs and moderate production while being cleaner than extensive systems. Natural phytoplankton and zooplankton are used as the primary food source, supplemented by feeds containing protein, carbohydrates, and materials that are cheap and available locally like plant waste and manures.
Water quality management in aquaculture production system aqc 601Yuvarajan Pandiyan
This document discusses water quality management for aquaculture production systems. It covers several key physio-chemical properties of water including temperature, turbidity, salinity, alkalinity, pH, hardness, and dissolved oxygen. For each property, the document discusses the optimal ranges for different fish species as well as how the properties can affect fish and shellfish health, growth, and survival. Treatment methods to adjust the properties when outside the optimal ranges are also provided.
Shore based aquaculture or coastal brackish water aquaculture is practiced in many countries. There are various methods of traditional culture system based on the local conditions. Shrimp culture is the main attraction of this culture system. Some other fishes and other organisms like crabs, bivalves and seaweeds are also farmed. This type of culture system is mainly found in south East Asia.
Transport of hatchlings, fry, and fingerlings is common in aquaculture. Proper techniques involve understanding fish physiology and mortality causes during transport. Seed can be collected from wild or hatcheries. Major carps are collected from flooded rivers during monsoon season. Seed from estuaries and coastal waters include milkfish, mullets, pearlspot, and seabass. Bundhs are seasonal flooded areas that stimulate breeding. Induced spawning techniques breed species that don't spawn in captivity using hormones. Transport uses open or closed oxygenated systems. Factors causing mortality are oxygen depletion, waste accumulation, temperature fluctuations, and stress. Anaesthetics and antibiotics are used to reduce stress and prevent disease.
The principle of integrated fish farming involves farming of fish along with livestock or/and agricultural crops.. This type of farming offers great efficiency in resource utilization, as waste or by product from one system is
effectively recycled. It also enables effective utilization of available farming space for maximizing production.
•The rising cost of protein-rich fish food and chemical fertilizers
as well as the general concern for energy conservation have created awareness in the utilization of rice and other crop fields and livestock wastes for fish culture. Fish culture in combination with agriculture or livestock is a unique and lucrative venture and provides a higher farm income, makes available a cheap source of protein for the
rural population, increases productivity on small land-holdings
and increases the supply of feeds for the farm livestock.
Scope of Integrated Fish Farming
The scope of integrated farming is considerably
wide. Ducks and geese are raised in pond, and pond- dykes are used for horticultural and agricultural
crop products and animal rearing.
The system provides meat, milk, eggs, fruits,
vegetables, mushroom, fodder and grains, in
addition to fish.
Hence this system provides better production, provides more employment, and improves socio- economic status of farmers and betterment of rural economy.
Classification of Integrated Fish Farming
Integrated fish farming can be broadly classified into two, namely Agriculture-fish and Livestock-fish systems
Agriculture-fish systems- Agri-based systems include rice-fish integration,
horticulture-fish system, mushroom- fish system, seri-fish system.
Livestock-fish systems- Livestock-fish system includes cattle-fish system, system, pig-fish system, poultry-fish system, duck-fish system, goat-fish system, rabbit-fish system.
This document provides information on fish and shrimp seed identification. It defines the different life stages of fish from hatchling to fingerling and describes their characteristics. Hatchling emerges from fertilized eggs with a yolk sac. As the yolk is absorbed, it becomes a spawn with a formed mouth. At 1-2 cm, it is a fry that feeds on zooplankton. A fingerling is 10-15 cm in size, suitable for stocking. Seed quality is determined by factors like uniform size and age, disease resistance, and genetic potential. Good hatchery and nursery management through practices like disease control are important to achieve quality seed.
A fishing gear is the tool with which aquatic resources are captured, whereas the fishing method is how the gear is used. Gear also includes harvesting organisms.
Dr. K. Rama Rao
Department of Zoology
Govt, Degree College
TEKKALI; Srikakulam Dt: A.P.
This document presents different culture methods for farming mussels. There are three main types of culture methods: bottom culture, intertidal and shallow water culture, and deep water culture. Intertidal and shallow water culture methods include rack culture, tray culture, wig-wam culture, and rope-web culture. Rack culture involves hanging mussel collectors on bamboo poles. Tray culture uses bamboo or metal trays suspended on poles. Deep water culture methods are raft culture, using rafts to hold suspended rope collectors, and long-line culture, which uses underwater lines anchored at the bottom.
The document discusses raceway culture for raising rainbow trout. Raceways are flowing water channels that divert water from natural streams or wells. They allow for higher stocking densities of fish and improved water quality compared to ponds. There are different types of raceways made from materials like concrete, stone, fiberglass or polyester resin. Raceway structures should allow easy flow of water and be attached to streams, rivers or canals. The document describes considerations for different types of raceway ponds for fry culture, market production, and brood stocking. It also discusses concrete silo designs and requirements for effective raceway systems such as adequate water supply, aeration, waste removal, and productivity.
Shrimp Culture: Culture of Tiger Shrimp (Penaeus monodon)Ratul Chakraborty
This document provides information on the culture of tiger shrimp (Penaeus monodon). It discusses the shrimp's natural distribution, classification, anatomy, life cycle phases, and main producer countries. Tiger shrimp are widely farmed for food, especially in Southeast Asia. They typically inhabit tropical coastal waters and estuaries. The largest producer of farmed tiger shrimp is Thailand.
culture system - semi intensive, intensive, super intensice and cage.pptxHimanshuPatidar19
This document discusses different types of aquaculture systems including semi-intensive, intensive, and super intensive systems. It also discusses different cage culture systems used in aquaculture like fixed cages, floating cages, submersible cages, and submerged cages. Semi-intensive systems involve stocking fish at moderate densities and relying on natural foods supplemented with feed. Intensive systems rely on artificial feeds and management to maximize yields. Super intensive systems involve very high stocking densities and use of water treatment technologies like recirculating aquaculture systems.
Carps form the mainstay of aquaculture in India contributing over 85% of the total aquaculture production There are 61,259 species of vertebrates recognized world; over 30,700 are fish species of which 8,411 ore fresh water while 11,650 are marine. In India 2,163 spp. are fin fishes have been recorded from upland cold water (157; 7.26%) warm water of the plain (54; 20.99%), Brackish water (182; 8.41%) and marine environment (1,370; 63.43%). Some of these species are cultured at commercial level which covering a lot varieties of fin fishes The three Indian major carps, namely Catla (Catla catla), Rohu (Labeo rohita) and Mrigal (Cirrhinus mrigal) contribute the bulk of production to the extent of 75 to85 percent of the total fresh water fish production, the three exotic carp such as Silver carp (Hypophthalmichthys molitrix) and Common carp (Cyprinus carpio ), Grass carp (Ctenopharyngodon idella )form the second important group to incorporate several other medium and minor carp and into the carp poly culture system several method were used because of their region specific consumer preference and higher market demand.
History
Carp culture in India was restricted only to a homestead backyard pond activity in west Bengal and Odisha until late 1950 s with seed from riverine sources as the only input resulting low level of production the technological breakthrough breeding of carp through hypophysation in 1957 freshwater aquaculture of the country the country till 1984 virtually laid the foundation of scientific carp farming in the country.
Important characteristics of Indian major carps:-
Indian major carp grow fast and can reproduce even in artificial ponds. They feed upon phytoplankton, zooplankton, decaying organic matter, aquatic plant etc. stomach is absent in the alimentary canal of the major carps. Three types of Indian major carps are cultured in
1. SPF animals are free from specific pathogens but may still be susceptible to infection. SPR animals have been selectively bred for resistance to particular pathogens through challenge testing.
2. Non-SPF broodstock can introduce novel diseases and pass pathogens to offspring without strict biosecurity. They may not have been selectively bred.
3. True SPF status requires rigorous screening and production in biosecure facilities; outside these facilities animals may still be disease-free but are no longer considered SPF.
This document discusses sewage-fed fish culture, which involves using treated sewage water to culture fish. It provides background on the history and present status of sewage-fed fish culture. The key processes involved are primary and secondary sewage treatment through sedimentation, dilution, and storage before releasing into fish ponds. Farmers culture various fish species using techniques like pond preparation, primary fertilization through sewage, stocking, feeding, and harvesting fish for market. While sewage-fed culture benefits waste recycling and low input costs, it can also pose health risks if not properly managed.
Feed management in aquaculture involves choosing the right feed, using proper feeding methods, and ensuring cost effectiveness. The correct type of feed depends on the fish species, whether they are herbivores, carnivores, or omnivores. Feeds must provide proteins, carbohydrates, fats, vitamins, and minerals. Feeding should be frequent but in small quantities to avoid waste and pollution, using methods like automatic feeders. Record keeping helps control costs and monitor fish health.
Generalized and specific definition of pond and the types relating their size, use, construction method were illustrated. Besides the culture system of fish and aquatic organisms and their types were also described.
The document discusses water quality assessment and surveillance. It outlines various physical, chemical and biological parameters used to evaluate drinking water quality according to WHO guidelines. These include turbidity, total dissolved solids, colour, odor, taste, temperature, pH and presence of inorganic constituents like chloride, calcium, magnesium, iron and sodium. Methods for testing parameters like turbidity, chloride, hardness, iron and fluoride are described. The document also covers bacteriological indicators of water quality including coliforms, E. coli and presence of pathogens. It provides methods for testing coliform bacteria using membrane filtration and multiple tube techniques.
Salinity is a measure of the total amount of dissolved salts in water, measured in grams per kilogram or parts per thousand. Seawater contains 11 major dissolved constituents that make up over 99.99% of all dissolved materials, with the largest proportions being chloride at 55.07% and sodium at 30.62%. Salinity affects the distribution of ocean plants and animals as well as other seawater properties like density and dissolved oxygen levels.
A fish hatchery is a facility where fish eggs are hatched and fish are reared through early life stages. Hatcheries provide fish seed for aquaculture and some fisheries by spawning, hatching, and caring for various fish and shellfish species. Factors to be considered in hatchery design include site selection, water supply and disposal systems, equipment selection, and developing floor plans. Tanks can be circular or rectangular and are used for rearing fish at different life stages.
Cage culture involves raising fish in mesh boxes placed in bodies of water. It originated in Cambodia about 200 years ago when cages were used to transport live fish to market. Cages are constructed with frames made of wood, plastic or steel, with floats to keep them buoyant and weights to anchor them. They come in various shapes and sizes, usually square or rectangular, and are 20-60 cubic meters. Cages are either fixed in flowing water, floating in lakes/rivers/offshore, or submerged and movable in areas prone to cyclones. Fish are fed through natural water movement and supplemental feeding of rice bran, fish meal and soybean cake. Fish production ranges from 3,000-25,000 kg
The document presents information on extensive aquaculture. It describes the characteristics of extensive aquaculture such as utilizing natural food sources with low stocking densities and production. The advantages are low costs due to no feeding requirements but disadvantages include habitat destruction and invasive species. It compares extensive and intensive aquaculture and lists references.
This document discusses the history and evolution of fish hatcheries from traditional to modern designs. It explains that traditional hatcheries used earthen pits or pots but these lacked temperature and pH control. More advanced designs in the 1970s-1980s used double cloth hatching systems or floating hapas to improve conditions. Modern hatcheries now have precise environmental control and include features like vertical jars, plastic buckets, or entire Chinese-style hatchery systems. The role of hatcheries is crucial to reliably produce high quality fish seeds for farming.
This document discusses semi-intensive fish culture systems. Semi-intensive systems involve small ponds of 0.5 to 1 hectare with stocking densities of 10,000 to 15,000 fish per hectare. These systems develop natural foods through fertilization and provide some supplemental feeding. Yields are moderate at 3 to 10 tons per hectare with high survival rates. Semi-intensive systems are preferred due to their low costs and moderate production while being cleaner than extensive systems. Natural phytoplankton and zooplankton are used as the primary food source, supplemented by feeds containing protein, carbohydrates, and materials that are cheap and available locally like plant waste and manures.
Water quality management in aquaculture production system aqc 601Yuvarajan Pandiyan
This document discusses water quality management for aquaculture production systems. It covers several key physio-chemical properties of water including temperature, turbidity, salinity, alkalinity, pH, hardness, and dissolved oxygen. For each property, the document discusses the optimal ranges for different fish species as well as how the properties can affect fish and shellfish health, growth, and survival. Treatment methods to adjust the properties when outside the optimal ranges are also provided.
Shore based aquaculture or coastal brackish water aquaculture is practiced in many countries. There are various methods of traditional culture system based on the local conditions. Shrimp culture is the main attraction of this culture system. Some other fishes and other organisms like crabs, bivalves and seaweeds are also farmed. This type of culture system is mainly found in south East Asia.
Transport of hatchlings, fry, and fingerlings is common in aquaculture. Proper techniques involve understanding fish physiology and mortality causes during transport. Seed can be collected from wild or hatcheries. Major carps are collected from flooded rivers during monsoon season. Seed from estuaries and coastal waters include milkfish, mullets, pearlspot, and seabass. Bundhs are seasonal flooded areas that stimulate breeding. Induced spawning techniques breed species that don't spawn in captivity using hormones. Transport uses open or closed oxygenated systems. Factors causing mortality are oxygen depletion, waste accumulation, temperature fluctuations, and stress. Anaesthetics and antibiotics are used to reduce stress and prevent disease.
The principle of integrated fish farming involves farming of fish along with livestock or/and agricultural crops.. This type of farming offers great efficiency in resource utilization, as waste or by product from one system is
effectively recycled. It also enables effective utilization of available farming space for maximizing production.
•The rising cost of protein-rich fish food and chemical fertilizers
as well as the general concern for energy conservation have created awareness in the utilization of rice and other crop fields and livestock wastes for fish culture. Fish culture in combination with agriculture or livestock is a unique and lucrative venture and provides a higher farm income, makes available a cheap source of protein for the
rural population, increases productivity on small land-holdings
and increases the supply of feeds for the farm livestock.
Scope of Integrated Fish Farming
The scope of integrated farming is considerably
wide. Ducks and geese are raised in pond, and pond- dykes are used for horticultural and agricultural
crop products and animal rearing.
The system provides meat, milk, eggs, fruits,
vegetables, mushroom, fodder and grains, in
addition to fish.
Hence this system provides better production, provides more employment, and improves socio- economic status of farmers and betterment of rural economy.
Classification of Integrated Fish Farming
Integrated fish farming can be broadly classified into two, namely Agriculture-fish and Livestock-fish systems
Agriculture-fish systems- Agri-based systems include rice-fish integration,
horticulture-fish system, mushroom- fish system, seri-fish system.
Livestock-fish systems- Livestock-fish system includes cattle-fish system, system, pig-fish system, poultry-fish system, duck-fish system, goat-fish system, rabbit-fish system.
This document provides information on fish and shrimp seed identification. It defines the different life stages of fish from hatchling to fingerling and describes their characteristics. Hatchling emerges from fertilized eggs with a yolk sac. As the yolk is absorbed, it becomes a spawn with a formed mouth. At 1-2 cm, it is a fry that feeds on zooplankton. A fingerling is 10-15 cm in size, suitable for stocking. Seed quality is determined by factors like uniform size and age, disease resistance, and genetic potential. Good hatchery and nursery management through practices like disease control are important to achieve quality seed.
A fishing gear is the tool with which aquatic resources are captured, whereas the fishing method is how the gear is used. Gear also includes harvesting organisms.
Dr. K. Rama Rao
Department of Zoology
Govt, Degree College
TEKKALI; Srikakulam Dt: A.P.
This document presents different culture methods for farming mussels. There are three main types of culture methods: bottom culture, intertidal and shallow water culture, and deep water culture. Intertidal and shallow water culture methods include rack culture, tray culture, wig-wam culture, and rope-web culture. Rack culture involves hanging mussel collectors on bamboo poles. Tray culture uses bamboo or metal trays suspended on poles. Deep water culture methods are raft culture, using rafts to hold suspended rope collectors, and long-line culture, which uses underwater lines anchored at the bottom.
The document discusses raceway culture for raising rainbow trout. Raceways are flowing water channels that divert water from natural streams or wells. They allow for higher stocking densities of fish and improved water quality compared to ponds. There are different types of raceways made from materials like concrete, stone, fiberglass or polyester resin. Raceway structures should allow easy flow of water and be attached to streams, rivers or canals. The document describes considerations for different types of raceway ponds for fry culture, market production, and brood stocking. It also discusses concrete silo designs and requirements for effective raceway systems such as adequate water supply, aeration, waste removal, and productivity.
Shrimp Culture: Culture of Tiger Shrimp (Penaeus monodon)Ratul Chakraborty
This document provides information on the culture of tiger shrimp (Penaeus monodon). It discusses the shrimp's natural distribution, classification, anatomy, life cycle phases, and main producer countries. Tiger shrimp are widely farmed for food, especially in Southeast Asia. They typically inhabit tropical coastal waters and estuaries. The largest producer of farmed tiger shrimp is Thailand.
culture system - semi intensive, intensive, super intensice and cage.pptxHimanshuPatidar19
This document discusses different types of aquaculture systems including semi-intensive, intensive, and super intensive systems. It also discusses different cage culture systems used in aquaculture like fixed cages, floating cages, submersible cages, and submerged cages. Semi-intensive systems involve stocking fish at moderate densities and relying on natural foods supplemented with feed. Intensive systems rely on artificial feeds and management to maximize yields. Super intensive systems involve very high stocking densities and use of water treatment technologies like recirculating aquaculture systems.
Carps form the mainstay of aquaculture in India contributing over 85% of the total aquaculture production There are 61,259 species of vertebrates recognized world; over 30,700 are fish species of which 8,411 ore fresh water while 11,650 are marine. In India 2,163 spp. are fin fishes have been recorded from upland cold water (157; 7.26%) warm water of the plain (54; 20.99%), Brackish water (182; 8.41%) and marine environment (1,370; 63.43%). Some of these species are cultured at commercial level which covering a lot varieties of fin fishes The three Indian major carps, namely Catla (Catla catla), Rohu (Labeo rohita) and Mrigal (Cirrhinus mrigal) contribute the bulk of production to the extent of 75 to85 percent of the total fresh water fish production, the three exotic carp such as Silver carp (Hypophthalmichthys molitrix) and Common carp (Cyprinus carpio ), Grass carp (Ctenopharyngodon idella )form the second important group to incorporate several other medium and minor carp and into the carp poly culture system several method were used because of their region specific consumer preference and higher market demand.
History
Carp culture in India was restricted only to a homestead backyard pond activity in west Bengal and Odisha until late 1950 s with seed from riverine sources as the only input resulting low level of production the technological breakthrough breeding of carp through hypophysation in 1957 freshwater aquaculture of the country the country till 1984 virtually laid the foundation of scientific carp farming in the country.
Important characteristics of Indian major carps:-
Indian major carp grow fast and can reproduce even in artificial ponds. They feed upon phytoplankton, zooplankton, decaying organic matter, aquatic plant etc. stomach is absent in the alimentary canal of the major carps. Three types of Indian major carps are cultured in
1. SPF animals are free from specific pathogens but may still be susceptible to infection. SPR animals have been selectively bred for resistance to particular pathogens through challenge testing.
2. Non-SPF broodstock can introduce novel diseases and pass pathogens to offspring without strict biosecurity. They may not have been selectively bred.
3. True SPF status requires rigorous screening and production in biosecure facilities; outside these facilities animals may still be disease-free but are no longer considered SPF.
This document discusses sewage-fed fish culture, which involves using treated sewage water to culture fish. It provides background on the history and present status of sewage-fed fish culture. The key processes involved are primary and secondary sewage treatment through sedimentation, dilution, and storage before releasing into fish ponds. Farmers culture various fish species using techniques like pond preparation, primary fertilization through sewage, stocking, feeding, and harvesting fish for market. While sewage-fed culture benefits waste recycling and low input costs, it can also pose health risks if not properly managed.
Feed management in aquaculture involves choosing the right feed, using proper feeding methods, and ensuring cost effectiveness. The correct type of feed depends on the fish species, whether they are herbivores, carnivores, or omnivores. Feeds must provide proteins, carbohydrates, fats, vitamins, and minerals. Feeding should be frequent but in small quantities to avoid waste and pollution, using methods like automatic feeders. Record keeping helps control costs and monitor fish health.
Generalized and specific definition of pond and the types relating their size, use, construction method were illustrated. Besides the culture system of fish and aquatic organisms and their types were also described.
The document discusses water quality assessment and surveillance. It outlines various physical, chemical and biological parameters used to evaluate drinking water quality according to WHO guidelines. These include turbidity, total dissolved solids, colour, odor, taste, temperature, pH and presence of inorganic constituents like chloride, calcium, magnesium, iron and sodium. Methods for testing parameters like turbidity, chloride, hardness, iron and fluoride are described. The document also covers bacteriological indicators of water quality including coliforms, E. coli and presence of pathogens. It provides methods for testing coliform bacteria using membrane filtration and multiple tube techniques.
Salinity is a measure of the total amount of dissolved salts in water, measured in grams per kilogram or parts per thousand. Seawater contains 11 major dissolved constituents that make up over 99.99% of all dissolved materials, with the largest proportions being chloride at 55.07% and sodium at 30.62%. Salinity affects the distribution of ocean plants and animals as well as other seawater properties like density and dissolved oxygen levels.
STERELISATION OF WATER WITH BLEACHING POWDER VinayakSoni15
CHEMISTRY INVESTIGATORY PROJECT CLASS 12 [STERELISATION OF WATER WITH BLEACHING POWDER ] HOPE IT WILL HELP YOU FURTHER.
IMPORTANT:- RESULT MAY NOT BE ACCURATE TO SUBJECT.
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Pond Construction Management And Preparation
1. Pond Construction Management
And Preparation
BABASAHEB BHIMRAO AMBEDKAR CENTRAL
UNIVERSITY LUCKNOW
𝑷𝑹𝑬𝑺𝑬𝑵𝑻𝑬𝑫𝑩𝒀:𝑹𝑶𝑯𝑰𝑻 𝑲𝑼𝑴𝑨𝑹
𝑩.𝑽𝒐𝒄𝑳𝑷𝑴
2. INTRODUCTION
Pond is an earthen embankment.
Pond is used for (growing fish, rearing fish, Spawning, Breeding).
Ponds are very small and shallow of quiet standing water with slight wave action and
may be naturally created or manmade.
For construction you need to consider due following factors; soil type, quality and
quantity of the water available and the requirements for filling and drainage of the
pond.
The natural fish food production in the pond can be increased by applying fertilizer to
the pond.
Fertilizers which can be used include animal manures, compost or chemical fertilizers.
Fish stocking normally takes place after pond preparation, liming and fertilization, and
is the means of introducing an adequate number of selected fish species of proper size
into the ponds for culture.
3. The basic concept were focused on the study of good manner management The Pond
Culture, which is being discussed, these practices will be treated under Pond
preparation and maintenance, Fertilization, Liming, Feeding, Stocking of Cultivable
Species, Water Quality maintenance, Aquatic Weed and Predator Control, Harvesting,
and Record-keeping.
4. MATERIALS AND METHODS
Study of area: The Lucknow region lies at the heart of India located below the Indo-
Gangetic plain The Study area a Babasaheb Bhimrao Ambedkar University campus
under Department of applied science it has under construction pond. Saturated pond
location on the Latitude of 26.7704. The Longitude of 80.9412. 26.7704 Latitude and
80.9412 Longitude can be mapped to closest address of BBAU, Vidya Vihar,
Raibareilly Road, Lucknow Uttar Pradesh, India.
Pond preparation and maintenance: Before the culturing of fish, the pond should be
conditioned. A layer of lime (calcium hydroxide) is spread over the bottom, for two
weeks. It removes the acidity of the soil, facilitates desirable geochemical cycles and
kills unwanted soil organisms. Soil with enough clay content to hold water. Clay and
silty clays are excellent soils for holding water because they stop water from steeping
through. Take soil samples at frequent intervals and have them analyzed to determine
suitability.
5. Hydrometer Method for Soils
Materials:
Weeing machine
Hotplate
H202 (30%) – This is painful to touch, so care should be taken
1L Beaker (at least this large)
Watch glass
Oven
Gloves/goggles
Procedure:
1. Separate out all course fragments of your soil sample using a 2mm size.
2. Weigh out 50g of your fine-textured material, and add to 1L beaker
3. Add 50mL of water.
4. Donning gloves and goggles, add 50mL of H2O2 in 10mL increments. Adding slowly
will help prevent excessive foaming.
6. 5. Stir and place watch glass over beaker, then move the beaker under a fume hood.
6. Put the beaker on a hot plate and heat to 80°C (using thermometer to gauge temperature).
Keeping a consistent temperature requires continual adjustments at first, but maintaining a stable
80°C can be accomplished after a few minutes.
7. Monitor in help of Scale.
7. Size- Will determine what fish species to stock-
Depth- Pond depth should be between 6 to 8 feet, with maximum depth not greater
than 10 to 12 feet. Digging in help of JCB and Other Masonry.
Inlet-Water recharge is an important feature of a fishing pond. It saturate in 1 to
2.5 fit depth.
Out let- Draining, repairs, manage the fish populations, and control aquatic plants.
The Outlet system in bottom in refer to a pond size.
8. Water Quality:
Temperature
Temperature measuring in help of thermometers range on 0 - 40oC.
pH
help of pH stipe 0 – 20
Total Dissolved solid– TDS measuring help of TDS meter model number 036, Mark India
Materials-
1. Burette with Burette stand and porcelain tile
2. Pipettes with elongated tips
3. Conical flask
4. Standard flask
5. Beaker
6. Wash bottle
9. Total hardness
Procedure –
1. Obtain a clean burette and rinse it with a few mL of the 0.0100 M EDTA titrant (TitraVer
Standard Solution). Fill the burette a little above the 0 mL level with the EDTA solution. Drain a
small amount of the solution so it fills the burette tip and leaves the EDTA solution at the 0 mL
mark (or just below it). Record the burette level on the Data & Calculations sheet, to the nearest
0.01 mL.
2. Prepare the water sample for titration.
a. Use a graduated cylinder to measure 50 mL of your water sample into a 250 mL Erlenmeyer
flask.
b. Add 1 mL of Hardness 1 Buffer Solution to the Erlenmeyer flask using the 1 mL calibrated
dropper. Gently swirl the contents of the flask to mix.
c. Pillow to the Erlenmeyer flask. Gently swirl the contents of the flask to mix. The solution
should now be red in color.
3. Titrate the sample you prepared in Step
a. Slowly add 0.01 M EDTA titrant to the sample in the Erlenmeyer flask—start with 1 mL
additions. Swirl the sample after each addition of titrant.
Calculation-
Total water hardness as CaCO3 (mg/L) = (titrant volume) ✕ 20.0
10. Chloride
Procedure –
Before starting the titration rinse the burette with silver nitrate solution. Fill the burette
with silver nitrate solution of 0.0282 N. Adjust to zero and fix the burette in stand.
Take 20 mL of the sample in a clean 250mL conical flask
Add 1 mL of Potassium Chromate indicator to get light yellow color
Titrate the sample against silver nitrate solution until the color changes from yellow to
brick red. i.e., the end point.
Note the volume of Silver nitrate added (A).
The value of titration is 3.3 mL.
Repeat the procedure for concordant values.
11. Blank Titration
Take 20 mL of the distilled water in a clean 250mL conical flask
Add 1 mL of Potassium Chromate indicator to get light yellow color
Titrate the sample against silver nitrate solution until the color changes from yellow to brick red.
i.e., the end point.
Note the volume of silver nitrate added for distilled water (B). The value of titration is 0.2 mL
Calculation
Chloride’s mg/L = v1- v2 X normality X 35.45 X 1000/volume of sample
Volume of silver nitrate for sample (v1)
Volume of silver nitrate for blank (v2)
12. Carbon dioxide
PROCEDURE
PREPARATION OF REAGENTS
Sodium Hydroxide (0.02 N)
Take 1000 mL standard measuring flask and fill 314th of it with distilled water.
Accurately measure 20 mL of in sulphuric acid solution using a pipette and transfer to 1000 mL
standard flask containing the distilled water. Make up to 1000 mL using distilled water.
Phenolphthalein Indicator
Weigh accurately 1 g of phenolphthalein and dissolve it in 95% ethyl alcohol.
Take 100 mL standard measuring flask and place a funnel over it.
Transfer it to the 100 mL standard flask and make up to 100 mL using 95% ethyl alcohol.
13. Methyl Orange Indicator
Weigh accurately 1 g of methyl and dissolve it in distilled water.
Take 100 mL standard measuring flask and place a funnel over it.
Transfer it to the 100 mL standard flask and make up to 100 mL using distilled water.
Mineral acidity = volume of titrant (v2) X N X 50 X 10
Volume of sample taken
14. Dissolve oxygen
Procedure –
Take two 300-mL glass stoppered BOD bottle and fill it with sample to be tested. Avoid
any kind of bubbling and trapping of air bubbles. Remember no bubbles!
Take the sample collected from the field. It should be collected in BOD bottle filled up
to the rim.
Add 2mL of manganese sulfate to the BOD bottle by inserting the calibrated pipette just
below the surface of the liquid.
Add 2 mL of alkali-iodide-azide reagent in the same manner.
Allow it to settle for sufficient time in order to react completely with oxygen.
Add 2 mL of concentrated sulfuric acid via a pipette held just above the surface of the
sample. Carefully stopper and invert several times to dissolve the floc.
Titration needs to be started immediately after the transfer of the contents to conical
flask. Titrate it against sodium thiosulphate using starch as indicator. (Add 3 - 4 drops
of starch indicator solution).
15. Dissolved oxygen = volume thiosulphate X 0.2 X 1000
Volume of sample taken
16. Fertilization:
Fertilizer increases pond productivity by stimulating the growth of microscopic plants.
Liming:
A mud sample should be analyzed to determine the amount of lime needed. Late fall or
early spring is the best time to apply lime. Ponds typically require liming every 2 to 4 years
according Fish manual ICAR-2009
Stocking:
stocked in the morning hour before the water gets heated up or in the evening hours
when water gets cooled. The buckets with spawn is slowly dipped In the pond so that
the spawns gets acclimatized to the pond water and voluntary comes out of the buckets.
17. Fish Feeding:
The artificial feeds are given from the second day in a wards of commissioning the pond.
An average Indian major carps spawn powdered 1.4 mg. The following feeding schedule is
more economical and gives Better survival.
First 5 Days: Equal to the initial body wt. of spawn stocked.
Second 5 Days: Double the initial body wt. of the spawn stocked.
Third 5 Days: Thrice the initial body wt. of the spawn stocked. For better utilization half of
the feed is given during the morning hours and half during the evening hours in every day.
18. Formulated feed-
Aquatic Weed Control: Aquatic plants are essential and beneficial to the pond community
of the fish and wildlife. Aquatic plants provide living areas, shade, food and cover for the
fish and organisms of the pond community. Control is not recommended if the vegetation
covers less than 20-25% of the pond's surface. But when aquatic vegetation does become
overabundant, covering more than 20-25% of the pond, it can cause problems and
something must be done. Here at some important points to remember when treating aquatic
vegetation are:
1. Identify the problem plant and select the appropriate herbicide.
2. Use only registered, approved herbicides.
3. Treat or apply the herbicide to an area larger than needed and apply to 5% formaldehyde
spared.
19. Harvesting, and Record-keeping:
Harvesting is collection of the fully grown carp fish from the pond (750-1000g).
If the pond can be drained, the fish can be harvested by draining the pond and collecting the
fish with scope nets.
If the pond cannot be drained repeated netting should be used to catch the fish.
20. Characteristics of a Good Culture Pond
Location Select land with a gentle slope and layout ponds to take advantage of existing land contours.
Construction Ponds may be dug into the ground, they may be partly above and partly in the ground, or they may be below original ground
elevation; slopes and bottom should be well packed during construction to prevent erosion and seepage; soil should contain
a minimum of 25% clay. Rocks, grass, branches and other undesirable objects should be eliminated from the dikes.
Pond depth Should be 0.5 1 .O meter at shallow end, sloping 1.5 to
2 meter at the drain end; deeper ponds may be required in northern regions where the threat of winterkill below deep ice
cover exists.
Configuration Best shape for ponds is rectangular or square.
Side slopes Construct ponds with 2:1 or 3:1 slopes on all sides.
Drains Gate valves, baffle boards or tilt-over standpipes should be provided; draining should take no more than 3 days.
Inflow lines Inflow lines should be of sufficient capacity to fill each pond within 3 days; if surface water is used, the incoming water
should be filtered to remove undesirable plants or animals
Dikes Dikes should be sufficiently wide to mow; road dikes should be made of gravel; grass should be planted on all dikes.
Orientation Situate pond properly to take advantage of water mixing by the wind, or in areas where wind causes extensive wave erosion
of dikes, place long sides of pond at right angles to the prevailing wind; use hedge or tree wind breaks when necessary.
28. Sample of Soil= 20 gm
Formula = Sand X 100
Total X 100
Soil reaction (pH): The present observation shows that the pH value was 6.5. The
suitable for aquaculture
Soil Texture: The observation find it soil texture in university pond sand was 7.9 cm
and clay was 3.8 cm respectably, the % calculation are faun the clay loom soil. The
observation chart show
30. An ideal pond soil - should not be too sandy to allow leaching of the nutrients or should
not be too clayey to keep all the nutrients absorbed on to it.
31. WATER QUALITY CRITERIA IN AQUACULTURE
Influence greatly on the growth and survival of aquatic organism.
Dissolved oxygen of water
The optimum dissolved oxygen of 5.0 mg/l. An average condition, 3.0 ppm DO or less
regard as hazardous for fish
Temperature of water
The optimum temperature range for several warm water fishes are 24o-30o C respectively
BOD5
The biochemical oxygen demand (BOD) - the amount of oxygen required to
microorganisms to decompose the organic matter in a water sample under specific
condition of the pond management. BOD5 values in fish ponds varied between 5 – 20 ppm
but the optimum BOD5 value is 10 – 20 ppm for fish ponds
32. Turbidity of water
Turbidity - due to suspended soil particles, Planktonic organism and humic substances.
The optimum Secchi disc visibility of fish ponds is considered to be 40-60cm.
pH
Water pH - affects metabolism and physiologyical process of fish.
33. Total alkalinity
The ideal range of total alkalinity for fresh water fish ponds is 60-300mg/liter as
CaCO3
Total hardness
Total hardness for fresh water fish ponds should be greater than 40mg/liter as
CaCO3
Carbon dioxide
Fresh water fish ponds should contain a low concentration of free CO2 below 5 .0
mg/liter but the intensive aquaculture free CO2 level may fluctuate between 5 and
10 ppm with at ill effects on fish
34. Technical details of pond
The Pond should have perennial fresh water source and water level in the pond is to be
maintained up to depth of 2m.
The water level should not be allowed to go down below 1m. The university pond has
a 1 m depth.
35. Pre – Stocking requirement:
Liming & Manuring: Liming is to be done @ 2t/ha if the soil pH is 5 and for alkaline
soil having higher pH, the lime may be reduced accordingly.
Manuring both organic and inorganic is done after liming.
Organic manuring is required 3 days after liming while inorganic manuring is done 15
days after organic manuring.
Organic manuring in the form of Cow dung is applied @ 5t/ha while urea is applied @
330 kg/ha and triple supper phosphate @ 165/ha.
After stocking, supplementary feed in the form of wheat bran and mustard oil cake may
be fed @ 2.7 t/ha.
36. Pond management
Before stocking, clear the pond of unwanted weeds and fish either by manual using
fishnets or by using Mahua oil cake.
Alkaline nature to be maintained by adequately adding lime in the ponds.
Fertilize the ponds properly to improve the natural availability of phytoplantation.
Stocking: Ponds will be ready for stocking after 15 days of application of fertilizers.
37. Capacity of university pond
The pond stocking 1000 x 4 numbers with size in 8 to 10 cm.
Apart from natural food, fish may be fed by rice bran (or) oil cake.
The feed may be placed on bamboo tray or it may be sprayed at corner of the ponds.
Organic manuring may be done at monthly intervals @ 100 kg and feeding trail of 2 to
5 % of total mass.
Growth rate of fish in terms of increase in body weight during culture period was
calculating.
The higher growth rate of fish with live feed in comparison to artificial feed may be
due to the fact that its nature and dependency on natural feed.
The increasing trend of weight gain fish was obtained.
38. Harvesting
Generally done at the end of one year, when fish attain a weight of 750 gms to 1.25 kg.
A production of 4-5 tons is possible in one-hectare pond.
39. Discussion and conclusion
Building a pond can be the most difficult and most expensive part of fish farming. A well-
built pond is a good investment that can be used for many years.
The steps in building a fish pond are:
1. Prepare the site
2. Build a clay core (only necessary for contour ponds)
3. Dig the pond and build the dikes
4. Build the inlet and outlet
5. Protect the pond dikes
6. Fertilizing the pond
7. Fence the pond
8. Fill the pond with water
9. Check for problems before stocking fish
40. The amount of sand, silt, and clay ultimately makes up the class of the soil.
To determine the class type of an unknown soil we will have to determine the ratio of
sand, silt, and clay particles in a specific volume of soil.
Clay soils are often best, due to their capacity to retain water and their high shear
strength.
Fish from construction is import and to maintain the pond in a good state and monitor
water quality.
The quality of water used for fish culture is one of the significant factors affecting fish
yield.
Interactions between the water, fish, soil, and other organisms during the production
cycle changes these water quality parameters and beyond certain tolerance levels this
imposes stress on the fish population.
It is therefore very important for maintain good water quality for fish culture.
41. The recommendations are made for the maintenance of good water quality.
Maintain pond water at green color (too deep green color should be avoided).
the pond should be limed (using Agricultural lime) to bring to the desirable PH level
of6.5 - 9.0. Contact your facilitator and extension agent for assistance.
Symptoms include when fish come up to the water surface to gasp for air, when the
water has offensive color and presence of scum over surface water.
If symptoms of low dissolved oxygen are detected take immediate action (i.e. stop
fertilization, decrease feeding rate, renew water completely or replace with fresh
oxygenated water, etc.).
Maintain pond water level especially during the hot, dry season. Deplete and replenish
water in pond by adding new fresh water to influence the water temperature
42. 1. Stock healthy and disease-free fingerlings, preferably obtained from fish-
Hatcheries and not the wild.
2. Avoid overcrowding, and stock correct number of fingerlings per unit area
3. Maintain good water level- and quality always.
4. Watch out for fish enemies and eliminate or control undesirable and unwanted organisms
inside and around the pond area.
5. Feed fish regularly twice daily, at same times (usually 9-1 Oat and 5pm in the morning and
evening) from the same feeding spot, by gradual broadcast.
6. Avoid excessive feeding in order to prevent pond fouling and pollution
7. Maintain normal pond water green color. Replenish water if color is too deep
8. Green or when the fish begins to gather at the surface to gulp for air.
9. Watch fish behavior for abnormalities and immediately remove diseased, dead or dying fish
(or any other dead animal found in the pond area).
10. Maintain pond structures. Routinely check for blockages and damages and repair
11. Pond walls, pond bottom, screens, inlet and outlet water supply structures
12. Keep accurate records of fish farming activities
43. Green color of water indicates good production of fish food organisms (plankton).
Clear water indicates lack of enough fish food. By dipping your hand in the water, seeing it
half-way to the elbow indicates lack of enough fish food. In such cases, increase
fertilization.
Generally supplemental feeds are usually obtained from agricultural by-products (e.g. oil
cakes, brans), industrial residue (e.g. brewers waste), animal by-products (e.g. blood meal),
and wastes (e.g. Chicken droppings).
The most commonly practiced feed supplementation locally is the dispensation of ground
feedstuffs such as cereal barns and domestic left-over/kitchen waste to feed fish.
44. Fishes fed on incomplete feeds will suffer deficiency diseases or symptoms attributable
to the lacking ingredient.
Balanced/complete diets are formulated by the combination of different essential
nutrients in different proportions (Protein, Carbon hydrates, Lipids, Vitamins, and
Minerals).
Besides complementing natural pond food organisms and supporting high stocking
density, it enables the fish culture to observe the behavior, healthy status, feeding level
and size changes during feeding.
In conclusion, it is recommended that further studies should be attempted to expand
research on enhancement of indigenous fish species by adopting habitat restoration and
species rehabilitation at local scale.
Fish culture has attracted the attention of the people all over the world and now it has
become a global issue among scientists and researchers working in this area.
45. REFRENCE
APHA ;( 2005). Standard methods for the examination of water and waste water. American Public Health Association Washington
D.C.
BIS. ;( 1982). Bureau of Indian Standards. Tolerance limit for inland surface water subject to pollution, IS: 2296-1982.New Delhi.
EPA ;( 2002). http/www.epa.gob
EPA ;( 2001).Fish as indicators http/www.epa.gob/calsuvebi/cells home/atlas/ bio indicators /fishesindicatav.html.
FAO. World Review of Fisheries and Aquaculture Part 1 2010. http://www.fao.org/docrep/013/i1820e/i1820e01.pdf. 3 June 2014
FAO.2000, World Review of Fisheries and Aquaculture http://www.fao.org/docrep/013/i1820e/i1820e01.pdf.
WHO/FAO. Joint FAO/WHO Food Standard Programmed Codex Alimentarius Commission 13th Session. Report of the Thirty
Eight Session of the Codex Committee on Food Hygiene, Houston, United States of America, ALINORM 07/ 30/13. 2007.
WHO (2011) Guidelines for drinking water quality, 4th edh. WHO press, 2011, pp 564
Singh AK, Srivastava SC, Ansari A, Kumar D, Singh R. Environmental Monitoring and Health Risk Assessment of African
Catfish Clarias gariepinus (Burchell, 1822) Cultured in Rural Ponds, India. Bulletin of Environmental Contamination and
Toxicology 2012; 89:1142–1147.