This document discusses floodplain wetlands and cold-water fisheries in India. It defines floodplain wetlands as areas of land in river valleys that periodically flood. India has over 67,000 wetlands covering 4.1 million hectares that support important fisheries. Wetlands can be classified based on morphology, water retention, depth, and river connection. They support over 85 fish species. Management approaches for wetlands include capture fisheries, culture-based fisheries, and integrated systems. Cold-water fisheries include important species like several Mahseer varieties and trout. They are managed through capture fisheries in lakes and streams and culture-based systems in ponds and tanks. Fish-based tourism is also discussed.
This document discusses estuaries and estuarine fisheries in India. It defines an estuary and notes that India has over 55 estuaries along its eastern and western coasts, totaling approximately 30,000 square kilometers. Several major river systems like the Ganges, Mahanadi, Godavari and Krishna form highly productive estuarine ecosystems. The document examines the fish production and ecology of estuaries like the Hooghly, Krishna, Godavari, Mahanadi, Chilka, Pulicat Lake, and Kerala backwaters. It provides details on fish catches, species diversity, and threats like overfishing in several of India's important estuarine systems.
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.
Indigenous fish species of Kashmir: Their importance, threats and conservation
Indigenous species are also called as native species. Indigenous species are found in a particular location and surrounding areas i.e., wide range of area. They are not restricted to a certain geographical area.
The document discusses global and Indian freshwater fish biodiversity. It notes that freshwater ecosystems account for only 1% of the Earth's surface but contain around 12,000 exclusively freshwater fish species. India is home to over 2,400 fish species, including 223 that are endemic. The major groups of freshwater fish found in India are carp, live fish, catfish, clupeids, mullets, featherbacks, loaches, eels, glassfish and gobies. Coldwater fish biodiversity includes species found in the Himalayas and Deccan plateau, while warm waters harbor over 500 species across various river systems.
Le diaporama dédié à la culture du milkfish offrira une exploration approfondie des multiples facettes de cette pratique aquacole. En mettant en avant les conditions environnementales optimales, il abordera les techniques de reproduction, les régimes nutritionnels recommandés, ainsi que les défis et avantages inhérents à l'élevage du milkfish. Des visuels graphiques et des images saisissantes seront incorporés pour illustrer de manière vivante le cycle de vie du poisson et dépeindre les installations d'élevage modernes. En parallèle, des données économiques viendront étayer la présentation, mettant en relief l'impact financier de cette activité. L'aspect culturel du milkfish ne sera pas négligé, mettant en lumière son importance dans diverses régions et soulignant son rôle significatif tant sur le plan économique que social. En somme, ce diaporama vise à offrir une compréhension holistique de la culture du milkfish, alliant informations pratiques et perspectives culturelles.
Migratory fish species move between freshwater and marine environments or within freshwater systems. There are over 120 species that regularly migrate between saltwater and freshwater globally, including salmon, trout, eels, and sawfish. In Bangladesh, the major migratory fish are hilsa, which travel over 1,200 km inland to spawn, and palla, which are found in the Ganges delta. Conservation efforts are needed to ensure fish migration routes and habitats are protected from impacts of development.
This document discusses cold water fisheries in India. It describes the temperature range for cold water fisheries (5-25°C) and notes that states like Kashmir, Himachal Pradesh, and Uttarakhand are well-suited for cold water fisheries. It identifies important cold water fish species in India like various types of mahseer and trout. Mahseer can grow up to 1.5 meters long and breed from July to September. Trout generally feed on other fish and aquatic invertebrates. Cold water fisheries provide income, employment, and food for local populations and have significant potential to contribute to India's fisheries sector and economy.
Pisciculture is the method of culturing and rearing fish and shellfish. It provides employment and a source of protein. Common fish used in pisciculture in India include various carp species, grey mullets, tilapia, and shrimp. Pisciculture is carried out in various water bodies like ponds, reservoirs, and paddy fields. It helps utilize water resources and areas like paddy fields for fish production. There is increasing global demand for fish, so pisciculture helps augment food supply.
This document discusses estuaries and estuarine fisheries in India. It defines an estuary and notes that India has over 55 estuaries along its eastern and western coasts, totaling approximately 30,000 square kilometers. Several major river systems like the Ganges, Mahanadi, Godavari and Krishna form highly productive estuarine ecosystems. The document examines the fish production and ecology of estuaries like the Hooghly, Krishna, Godavari, Mahanadi, Chilka, Pulicat Lake, and Kerala backwaters. It provides details on fish catches, species diversity, and threats like overfishing in several of India's important estuarine systems.
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.
Indigenous fish species of Kashmir: Their importance, threats and conservation
Indigenous species are also called as native species. Indigenous species are found in a particular location and surrounding areas i.e., wide range of area. They are not restricted to a certain geographical area.
The document discusses global and Indian freshwater fish biodiversity. It notes that freshwater ecosystems account for only 1% of the Earth's surface but contain around 12,000 exclusively freshwater fish species. India is home to over 2,400 fish species, including 223 that are endemic. The major groups of freshwater fish found in India are carp, live fish, catfish, clupeids, mullets, featherbacks, loaches, eels, glassfish and gobies. Coldwater fish biodiversity includes species found in the Himalayas and Deccan plateau, while warm waters harbor over 500 species across various river systems.
Le diaporama dédié à la culture du milkfish offrira une exploration approfondie des multiples facettes de cette pratique aquacole. En mettant en avant les conditions environnementales optimales, il abordera les techniques de reproduction, les régimes nutritionnels recommandés, ainsi que les défis et avantages inhérents à l'élevage du milkfish. Des visuels graphiques et des images saisissantes seront incorporés pour illustrer de manière vivante le cycle de vie du poisson et dépeindre les installations d'élevage modernes. En parallèle, des données économiques viendront étayer la présentation, mettant en relief l'impact financier de cette activité. L'aspect culturel du milkfish ne sera pas négligé, mettant en lumière son importance dans diverses régions et soulignant son rôle significatif tant sur le plan économique que social. En somme, ce diaporama vise à offrir une compréhension holistique de la culture du milkfish, alliant informations pratiques et perspectives culturelles.
Migratory fish species move between freshwater and marine environments or within freshwater systems. There are over 120 species that regularly migrate between saltwater and freshwater globally, including salmon, trout, eels, and sawfish. In Bangladesh, the major migratory fish are hilsa, which travel over 1,200 km inland to spawn, and palla, which are found in the Ganges delta. Conservation efforts are needed to ensure fish migration routes and habitats are protected from impacts of development.
This document discusses cold water fisheries in India. It describes the temperature range for cold water fisheries (5-25°C) and notes that states like Kashmir, Himachal Pradesh, and Uttarakhand are well-suited for cold water fisheries. It identifies important cold water fish species in India like various types of mahseer and trout. Mahseer can grow up to 1.5 meters long and breed from July to September. Trout generally feed on other fish and aquatic invertebrates. Cold water fisheries provide income, employment, and food for local populations and have significant potential to contribute to India's fisheries sector and economy.
Pisciculture is the method of culturing and rearing fish and shellfish. It provides employment and a source of protein. Common fish used in pisciculture in India include various carp species, grey mullets, tilapia, and shrimp. Pisciculture is carried out in various water bodies like ponds, reservoirs, and paddy fields. It helps utilize water resources and areas like paddy fields for fish production. There is increasing global demand for fish, so pisciculture helps augment food supply.
This document discusses the different components and types of fisheries in India. It covers inland fisheries including capture fisheries from rivers, reservoirs, and lakes, as well as culture fisheries conducted on fish farms. It also discusses coastal fisheries including estuarine fisheries that provide nursery grounds for fish and brakishwater fisheries. Finally, it covers marine fisheries along India's east and west coasts and the types of fish found in each region.
This document discusses fish production and fisheries in India. It describes two methods of obtaining fish: capture fishing from natural resources and fish farming/culture fishery. It also discusses marine fisheries, where popular fish varieties are caught offshore using nets and locating technologies. Some marine fish are also farmed in seawater, such as prawns, mussels and oysters. Inland fisheries involve fishing in rivers, ponds, and reservoirs, and common freshwater varieties include rohu, catla, mrigal, and silver carp. Fish farming techniques aim to avoid competition for food by stocking ponds with different species that consume different resources.
This document discusses habitat modification to improve fisheries in floodplain wetlands. It begins with an introduction to wetlands, noting that they cover 12% of Earth's surface and are important ecosystems. It then discusses the classification and origins of different types of floodplain wetlands. Next, it covers the physical and chemical properties of wetland soils and waters, as well as primary production. The document then discusses fish diversity and yields in wetlands, and different fishery management approaches. It concludes with an overview of the uses and importance of wetlands, as well as the goals of the Ramsar Convention to protect wetland habitats internationally.
This document discusses silverbelly fish fisheries in India. It notes that silverbellies are small fish found in shallow waters along the Indian coast that are an important resource, with annual landings of around 5,000 tons. The majority of landings come from trawling in the southern states of Tamil Nadu and Kerala. Silverbellies have a unique distribution along the Indian coast and consist of 21 species, though diversity is highest in the Palk Bay and Gulf of Mannar regions of southern Tamil Nadu. They spawn year-round but with one or two longer peak seasons. Due to their importance as a fishery resource, management of silverbelly stocks is important.
This document provides information about different types of fishing. It discusses fish farming, capture fishing, culture fishing, marine fisheries, inland fisheries, and composite fish farming. It describes different fish species used in composite fish farming like catla, rohu, common carp, which feed in different zones. The document also discusses problems with composite fish culture like monsoon breeding and lack of quality seed, and how hormonal stimulation is now used to breed fish and ensure pure seed supply.
This document discusses the prawn fishery in India, including different types and species of prawns. It outlines that prawn fishery is one of India's most important crustacean fisheries. There are four main types of prawn fishery: shallow water, saline lake, fresh water, and marine water. It then describes the five main genera of prawns found in India - Penaeus, Metapenaeus, Parapenaeopsis, Palaemon, and Macrobrachium - and provides details on some common species within each genera, including their locations, sizes, and other characteristics.
Aquaculture is the farming of aquatic organisms such as fish, mollusks, crustaceans, and aquatic plants. It involves some form of intervention in the rearing process, such as regular stocking, feeding, and protection from predators. Farming implies individual or corporate ownership of the stock being cultivated. India has a long history of aquaculture and is now the second largest producer of aquaculture products globally. Aquaculture makes an important contribution to India's food supply and economy through diverse practices in freshwater, brackishwater, and marine environments.
This document summarizes information about the Sunderbans Tiger Reserve in India. It notes that the reserve was established in 1973 under Project Tiger to protect the only mangrove forest habitat of tigers in the world. The Sunderbans contains over 4,000 square kilometers of mangrove forest across 56 islands that provide habitat for diverse flora and fauna including the endangered Royal Bengal tiger. The forest faces threats from poaching, illegal logging, industrial development, and climate change impacts like rising sea levels. The management of the reserve focuses on conservation, supporting local communities, research, and developing sustainable livelihoods to reduce pressure on the ecosystem.
PRAWN FISHERY & DIFFERENT SPECIES OF PRAWN IN INDIAMr. Balwant Singh
This document discusses the prawn fishery in India, including different types and species of prawns. It outlines that prawn fishery is one of India's most important crustacean fisheries. There are four main types of prawn fishery: shallow water, saline lake, fresh water, and marine water. It then describes the five main genera of prawns found in India - Penaeus, Metapenaeus, Parapenaeopsis, Palaemon, and Macrobrachium - and provides details on some common species within each genera, including their locations, sizes, and other characteristics.
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.
- Estuaries are transitional zones where freshwater from rivers mixes with saltwater from oceans, creating brackish water. They are ecologically diverse and economically important habitats.
- The largest estuary in Pakistan is the Indus River estuary, which supports mangroves and wildlife. Estuaries face threats from pollution, development, and climate change.
- Conservation efforts include reducing water and energy use, properly disposing of chemicals, maintaining vehicles, and participating in community cleanups.
The Convention on Wetlands, also known as the Ramsar Convention, is an intergovernmental treaty established in 1971 to protect wetland habitats. It aims to conserve and promote sustainable use of wetlands globally through local, national, and international cooperation. Key points of the Ramsar Convention include designating Wetlands of International Importance, also called Ramsar sites, promoting wise use of all wetlands, and cooperating on transboundary wetland management. India has designated 37 Ramsar sites covering over 1 million hectares to protect important wetland habitats and species within its territory.
Estuaries are transitional zones where rivers meet the sea. They are characterized by varying salinity levels due to mixing of fresh and salt water. Estuaries contain diverse habitats and are among the most productive ecosystems. They provide many resources including fisheries, tourism, transportation and cultural values. However, estuaries face threats such as land reclamation, pollution, overfishing and natural hazards. Protecting these fragile ecosystems and their services is important for both environmental and economic reasons.
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.
wetlands. ramsar sites of kera;a..general info about the wetlands, its type, significane...etc...similarly about Ramsar sites, its criterias and detaios about 3 important sites of kerala
This document provides information on three cultivable brackishwater finfish species: grey mullet, milkfish, and pearl spot. It describes their natural distribution and habitats, life cycles, breeding and cultivation methods. Grey mullet is fast growing and cultured through polyculture. Milkfish is widely cultured in southeast Asia using pond and pen methods. Pearl spot is suitable for both fresh and brackishwater culture and attains market size within 8-10 months through polyculture.
Wetlands provide many benefits. They act as natural sponges that help control flooding by absorbing and slowly releasing water. They also filter and purify surface water. Wetlands are highly productive ecosystems that provide food and refuge for wildlife. They have economic value through activities like fishing, hunting, and recreation. Mangroves in particular can help buffer against storms and tsunamis as demonstrated in one Indian village.
What is biodiversity?
Father of biodiversity- E.O. Wilson.
The term ‘biodiversity’’ encompasses the variety of all life forms on earth.
Define biodiversity –
‘’ Biodiversity include of the particular area may be living organisms (plant and animal) called biodiversity ’’.
• Simple words in can be defined as the biodiversity .
“Variety, variability b/w genes, spp. and ecosystem”.
Define fish diversity –
“Fish Species diversity is defined as the number of species and abundance of each species that live in a particular location”.
The number of species that live in a particular location is called species richness.
India is one of the 17 mega biodiversity countries having four biodiversity hotspots namely the Western Ghats, eastern Himalayas, Indo-Burma and Sundaland that are included amongst the top ten most important hotspots in the world.
It also has rich freshwater(rivers, irrigationcanals,tanks, lakes,reservoirs) fish diversity.
Which living organisms–
All living organism in world 7.4 billion.
Fish Biodiversity in world-
World harbour total of 33059 spp. 4258 genera, 482 families about 58 % Marine water, 41% Fresh water and 1% migrants.
2-Fisheries resource of India –
India blessed with huge aquatic resources with 29,000 km of rivers, 0.3 million ha of estuaries, 0.9 million ha of back waters and lagoons, 3.15 million ha of reservoirs, 0.2 million ha of floodplain wetlands, 0.72 million ha of upland lakes and 2.02 million km sq area of Exclusive Economic Zone (EEZ) surrounding the seas,8129 km of coast line, which includes those of Andaman and Nicobar and Lakshadweep Islands.
The seas surrounding the country, 14 major rivers, 44 medium rivers and innumerable small rivers and other inland water bodies provide one of the richest faunastic resources of the world.
This document provides an overview of the Hilsa fish species, which is an important commercial fish in the Indo-Pacific region. Some key points:
1. Hilsa fish migrate between freshwater rivers and the sea to spawn and feed. Major spawning grounds are located in the Ganges-Brahmaputra river delta region.
2. Juvenile Hilsa spend time growing in nursery grounds along rivers before migrating to sea feeding/growing grounds.
3. Bangladesh has established Hilsa sanctuaries and seasonal fishing bans to help conserve stocks of this important species. Management of Hilsa fisheries is a national priority given its economic and cultural significance.
This document discusses the different components and types of fisheries in India. It covers inland fisheries including capture fisheries from rivers, reservoirs, and lakes, as well as culture fisheries conducted on fish farms. It also discusses coastal fisheries including estuarine fisheries that provide nursery grounds for fish and brakishwater fisheries. Finally, it covers marine fisheries along India's east and west coasts and the types of fish found in each region.
This document discusses fish production and fisheries in India. It describes two methods of obtaining fish: capture fishing from natural resources and fish farming/culture fishery. It also discusses marine fisheries, where popular fish varieties are caught offshore using nets and locating technologies. Some marine fish are also farmed in seawater, such as prawns, mussels and oysters. Inland fisheries involve fishing in rivers, ponds, and reservoirs, and common freshwater varieties include rohu, catla, mrigal, and silver carp. Fish farming techniques aim to avoid competition for food by stocking ponds with different species that consume different resources.
This document discusses habitat modification to improve fisheries in floodplain wetlands. It begins with an introduction to wetlands, noting that they cover 12% of Earth's surface and are important ecosystems. It then discusses the classification and origins of different types of floodplain wetlands. Next, it covers the physical and chemical properties of wetland soils and waters, as well as primary production. The document then discusses fish diversity and yields in wetlands, and different fishery management approaches. It concludes with an overview of the uses and importance of wetlands, as well as the goals of the Ramsar Convention to protect wetland habitats internationally.
This document discusses silverbelly fish fisheries in India. It notes that silverbellies are small fish found in shallow waters along the Indian coast that are an important resource, with annual landings of around 5,000 tons. The majority of landings come from trawling in the southern states of Tamil Nadu and Kerala. Silverbellies have a unique distribution along the Indian coast and consist of 21 species, though diversity is highest in the Palk Bay and Gulf of Mannar regions of southern Tamil Nadu. They spawn year-round but with one or two longer peak seasons. Due to their importance as a fishery resource, management of silverbelly stocks is important.
This document provides information about different types of fishing. It discusses fish farming, capture fishing, culture fishing, marine fisheries, inland fisheries, and composite fish farming. It describes different fish species used in composite fish farming like catla, rohu, common carp, which feed in different zones. The document also discusses problems with composite fish culture like monsoon breeding and lack of quality seed, and how hormonal stimulation is now used to breed fish and ensure pure seed supply.
This document discusses the prawn fishery in India, including different types and species of prawns. It outlines that prawn fishery is one of India's most important crustacean fisheries. There are four main types of prawn fishery: shallow water, saline lake, fresh water, and marine water. It then describes the five main genera of prawns found in India - Penaeus, Metapenaeus, Parapenaeopsis, Palaemon, and Macrobrachium - and provides details on some common species within each genera, including their locations, sizes, and other characteristics.
Aquaculture is the farming of aquatic organisms such as fish, mollusks, crustaceans, and aquatic plants. It involves some form of intervention in the rearing process, such as regular stocking, feeding, and protection from predators. Farming implies individual or corporate ownership of the stock being cultivated. India has a long history of aquaculture and is now the second largest producer of aquaculture products globally. Aquaculture makes an important contribution to India's food supply and economy through diverse practices in freshwater, brackishwater, and marine environments.
This document summarizes information about the Sunderbans Tiger Reserve in India. It notes that the reserve was established in 1973 under Project Tiger to protect the only mangrove forest habitat of tigers in the world. The Sunderbans contains over 4,000 square kilometers of mangrove forest across 56 islands that provide habitat for diverse flora and fauna including the endangered Royal Bengal tiger. The forest faces threats from poaching, illegal logging, industrial development, and climate change impacts like rising sea levels. The management of the reserve focuses on conservation, supporting local communities, research, and developing sustainable livelihoods to reduce pressure on the ecosystem.
PRAWN FISHERY & DIFFERENT SPECIES OF PRAWN IN INDIAMr. Balwant Singh
This document discusses the prawn fishery in India, including different types and species of prawns. It outlines that prawn fishery is one of India's most important crustacean fisheries. There are four main types of prawn fishery: shallow water, saline lake, fresh water, and marine water. It then describes the five main genera of prawns found in India - Penaeus, Metapenaeus, Parapenaeopsis, Palaemon, and Macrobrachium - and provides details on some common species within each genera, including their locations, sizes, and other characteristics.
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.
- Estuaries are transitional zones where freshwater from rivers mixes with saltwater from oceans, creating brackish water. They are ecologically diverse and economically important habitats.
- The largest estuary in Pakistan is the Indus River estuary, which supports mangroves and wildlife. Estuaries face threats from pollution, development, and climate change.
- Conservation efforts include reducing water and energy use, properly disposing of chemicals, maintaining vehicles, and participating in community cleanups.
The Convention on Wetlands, also known as the Ramsar Convention, is an intergovernmental treaty established in 1971 to protect wetland habitats. It aims to conserve and promote sustainable use of wetlands globally through local, national, and international cooperation. Key points of the Ramsar Convention include designating Wetlands of International Importance, also called Ramsar sites, promoting wise use of all wetlands, and cooperating on transboundary wetland management. India has designated 37 Ramsar sites covering over 1 million hectares to protect important wetland habitats and species within its territory.
Estuaries are transitional zones where rivers meet the sea. They are characterized by varying salinity levels due to mixing of fresh and salt water. Estuaries contain diverse habitats and are among the most productive ecosystems. They provide many resources including fisheries, tourism, transportation and cultural values. However, estuaries face threats such as land reclamation, pollution, overfishing and natural hazards. Protecting these fragile ecosystems and their services is important for both environmental and economic reasons.
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.
wetlands. ramsar sites of kera;a..general info about the wetlands, its type, significane...etc...similarly about Ramsar sites, its criterias and detaios about 3 important sites of kerala
This document provides information on three cultivable brackishwater finfish species: grey mullet, milkfish, and pearl spot. It describes their natural distribution and habitats, life cycles, breeding and cultivation methods. Grey mullet is fast growing and cultured through polyculture. Milkfish is widely cultured in southeast Asia using pond and pen methods. Pearl spot is suitable for both fresh and brackishwater culture and attains market size within 8-10 months through polyculture.
Wetlands provide many benefits. They act as natural sponges that help control flooding by absorbing and slowly releasing water. They also filter and purify surface water. Wetlands are highly productive ecosystems that provide food and refuge for wildlife. They have economic value through activities like fishing, hunting, and recreation. Mangroves in particular can help buffer against storms and tsunamis as demonstrated in one Indian village.
What is biodiversity?
Father of biodiversity- E.O. Wilson.
The term ‘biodiversity’’ encompasses the variety of all life forms on earth.
Define biodiversity –
‘’ Biodiversity include of the particular area may be living organisms (plant and animal) called biodiversity ’’.
• Simple words in can be defined as the biodiversity .
“Variety, variability b/w genes, spp. and ecosystem”.
Define fish diversity –
“Fish Species diversity is defined as the number of species and abundance of each species that live in a particular location”.
The number of species that live in a particular location is called species richness.
India is one of the 17 mega biodiversity countries having four biodiversity hotspots namely the Western Ghats, eastern Himalayas, Indo-Burma and Sundaland that are included amongst the top ten most important hotspots in the world.
It also has rich freshwater(rivers, irrigationcanals,tanks, lakes,reservoirs) fish diversity.
Which living organisms–
All living organism in world 7.4 billion.
Fish Biodiversity in world-
World harbour total of 33059 spp. 4258 genera, 482 families about 58 % Marine water, 41% Fresh water and 1% migrants.
2-Fisheries resource of India –
India blessed with huge aquatic resources with 29,000 km of rivers, 0.3 million ha of estuaries, 0.9 million ha of back waters and lagoons, 3.15 million ha of reservoirs, 0.2 million ha of floodplain wetlands, 0.72 million ha of upland lakes and 2.02 million km sq area of Exclusive Economic Zone (EEZ) surrounding the seas,8129 km of coast line, which includes those of Andaman and Nicobar and Lakshadweep Islands.
The seas surrounding the country, 14 major rivers, 44 medium rivers and innumerable small rivers and other inland water bodies provide one of the richest faunastic resources of the world.
This document provides an overview of the Hilsa fish species, which is an important commercial fish in the Indo-Pacific region. Some key points:
1. Hilsa fish migrate between freshwater rivers and the sea to spawn and feed. Major spawning grounds are located in the Ganges-Brahmaputra river delta region.
2. Juvenile Hilsa spend time growing in nursery grounds along rivers before migrating to sea feeding/growing grounds.
3. Bangladesh has established Hilsa sanctuaries and seasonal fishing bans to help conserve stocks of this important species. Management of Hilsa fisheries is a national priority given its economic and cultural significance.
Similar to THE FLOOD PLAIN WETLAND AND COLD-WATER FISHERIES OF-2 (1).pptx (20)
Temple of Asclepius in Thrace. Excavation resultsKrassimira Luka
The temple and the sanctuary around were dedicated to Asklepios Zmidrenus. This name has been known since 1875 when an inscription dedicated to him was discovered in Rome. The inscription is dated in 227 AD and was left by soldiers originating from the city of Philippopolis (modern Plovdiv).
বাংলাদেশের অর্থনৈতিক সমীক্ষা ২০২৪ [Bangladesh Economic Review 2024 Bangla.pdf] কম্পিউটার , ট্যাব ও স্মার্ট ফোন ভার্সন সহ সম্পূর্ণ বাংলা ই-বুক বা pdf বই " সুচিপত্র ...বুকমার্ক মেনু 🔖 ও হাইপার লিংক মেনু 📝👆 যুক্ত ..
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ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...PECB
Denis is a dynamic and results-driven Chief Information Officer (CIO) with a distinguished career spanning information systems analysis and technical project management. With a proven track record of spearheading the design and delivery of cutting-edge Information Management solutions, he has consistently elevated business operations, streamlined reporting functions, and maximized process efficiency.
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Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
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2. WHAT IS FLOODPLAIN WETLAND?
• The area of land which falls in the river valley and
got flooded periodically are known as floodplain
wetland
• The floodplain wetlands are either permanent or
temporary water bodies associated with rivers.
• Wetlands are among the world’s most productive
environments.
• Floodplain wetlands form an important fishery
resource in Assam, West Bengal, Bihar.
3. DISTRIBUTION OF WETLAND IN INDIA
• India has a wealth of wetland ecosystems
distributed in different geographical regions.
• According to Ministry of Environments and Forest,
India has totally 67,429 wetland covering an area of
about 4.1 million hectares.
• Wetlands in India account for 18.4% of the
country’s geographical area of which 70% is under
paddy cultivation.
4. CLASSIFICATION OF FLOODPLAIN WETLAND
• The floodplain wetland include low lying water bodies of diverse origin, size,
shape, depth and ecological characteristics.
5. CLASSIFICATION BASED ON MORPHOLOGY
• 1. Ox-bow Lakes: these are cut of portion of river meanders.
• 2. Lake like wetland: these are wide and shallow with irregular contours.
• 3. Tectonic depressions: These kind of wetland forms by the tectonic activities.
• 4. Meteorite Lake: these are created by the impact of meteorite on earth.
6. CLASSIFICATION BASED ON WATER RETENTIVITY
• 1. Seasonal beels: These are shallow floodplain wetlands, which periodically get
inundated by monsoon rains and floods but completely dry up during summer
months.
• 2. Perennial beels: These are deeper and permanent beels, which retain water
round the year.
7. CLASSIFICATION BASED ON DEPTH
• 1. Shallow beels: Beels which has a maximum depth of 5 meters are called
Shallow beel.
• 2. Medium beels: Beels which has a depth ranging from 5-10 meters are called
Medium beel.
• 3. Deep beels: Beels which has a maximum depth of over 10 meters are called
Deep beel.
8. CLASSIFICATION BASED ON RIVERINE
CONNECTION
1. Open beels: These beels retain continuity with parent river either for the whole
year or at least during the rainy seasons. Such beels exchange water as well as
fish fauna with parent river.
2. Closed beels: These beels are completely cut off from the nearby river and
receive water mostly from their catchment area following monsoon rains or
during high flood.
9. FISH DIVERSITY IN WETLANDS
• Floodplain wetland in India have large number of fish species, a total of 85 fish species
belongs to 33 families have been reported in Indian wetland. The major fish species
divided broadly into
Major carps
Minor carps
Catfish
Snakehead
Featherback
Loach
Perch
eels
10. FISH YEILD POTENTIAL IN FLOODPLAIN WETLAND
• The wetlands are serving the need for fish from sustenance level to high intensity
with varying management regimes. In the past years the average fish yield
realized from these wetlands was very low as 50 kg ha−1 yr−1 against the annual
potential of 2000 kg ha−1 yr−1. The fish yield from these resources has enhanced
through adoption of culture based fisheries and now the average yield has
increased to 400 kg ha−1 yr−1.
12. CAPTURE FISHERY FOR OPEN WETLANDS
• Floodplain wetlands retaining their riverine connection for a reasonably long
period of time are relatively free from weeds. The management strategy can be
that of capture fisheries. The approach is to allow natural fish recruitment by
conserving and protecting the brooders and juveniles. This involves identification
and protection of breeding grounds, brood stock and juveniles; allowing free
migration of brooders and juveniles from wetland to river and vice versa.
13. CULTURE-BASED FISHERY FOR CLOSED
WETLANDS
• Closed floodplain wetlands, in majority of the cases, are characterized by weed
infestation and derelict nature, constraining optimization of fish yield from these
water bodies. Management of completely closed wetlands or those with a very
brief period of connection with the rivers is more like that of culture-based
fisheries of small reservoirs. The basic strategy for fish yield enhancement here is
stocking and recapture. The growth of fishes in these water bodies will be faster
compared to that of reservoirs due to availability of huge reserve of food niches.
14. CAPTURE AND CULTURE-BASED FISHERIES
• There are management systems, which combine the norms of capture and culture
based fisheries. In this system, the marginal areas of wetlands are cordoned off
for culture fishery either in ponds or in pens and the central portion is left for
capture fisheries. Under this system, a series of small enclosures are created
along the periphery of the lake, which is leased out to entrepreneurs for fish
farming. Some of these enclosures serve as nurseries to rear the seed for both
aquaculture and stocking in the wetland. When culture based fishery is practiced,
the connecting channel is blocked using wire mesh to prevent the stocked fishes
from escaping and the water inflow and out flow is regulated through a sluice
installed at the mouth of the channel.
15. INTEGRATED MANAGEMENT
• The integration plan envisages developing agriculture and aquaculture in one
portion, leaving the other portion for capture and culture based fisheries.
• A dike can separate the two segments of the wetland while the water flow to
agriculture and aquaculture areas in each segment can be regulated through
canals. The central marshy portion can be left intact for harboring the birds that
frequent the area.
16. COLDWATER FISHERIES OF INDIA
• Coldwater fisheries occupy an important place in fisheries sector of India. The
country is bestowed with vast and varied cold water/hill fishery resources which
are spread over the Himalayan and peninsular regions as upland rivers,
streams, high and low altitude natural lakes and reservoir.
17. COMMERCIALLY IMPORTANT COLDWATER FISH
SPECIES
• There are several indigenous and exotic coldwater fishes which are commercially
important in India.
18. MAHSEER
• It is characterized by head shorter than
the depth of the body. It attains a
length of 1.5 m and occurs along the
foot hills of Himalayas from Kashmir to
Assam and in the river Narmada and
Tapti. It is insectivorous in its juvenile
stage but becomes herbivorous when
adult. It has a prolonged breeding
season from July to December.
Scientific name: Tor tor
19. GOLDEN MAHSEER
• It is commonly called as golden
or common Himalayan Mahaseer.
It has head longer than the
depth of the body. It occurs in
Himalayas from Kashmir to
Darjeeling hills. This fish breeds
thrice in a year, firstly during
winter months (January to
February), subsequently in
summer (May –June ) and lastly
in August – September.
Scientific name: Tor putitora
20. DECCAN MAHSEER
• It is characterized by its head
being as long as the depth of the
body. It is found in Orissa and
throughout peninsular India. It
attains a length of about 1.3 m.
Scientific name: Tor khudree
21. COPPER MAHSEER
• It is commonly known as copper or
chocolate Mahaseer. It has an oblong
and compressed body with an
obtusely rounded and prominent
mouth. These are mainly distributed
Upper India, Assam and Cauvery river
inTamil Nadu. It attains a length over
60 cm.
Scientific name: Neolissochilus
hexagonolepis
22. SNOW TROUT:
• These are found in snow fed
streams of Assam, estern
Himalayas, Sikkim, Nepal,
Kashmir. It lives in mountain
rivers among rocks, feeding on
algae, aquatic plants and
detritus, they breed in April and
May.
Scientific name: Schizothorax richardsonii
23. RAINBOW TROUT
• It is a native of North American Pacific
water and was imported to India in1907.
Presently, these are one of the most
successful trout of Indian waters for
cultural purpose because these adapt
easily in comparison to the brown trout’s.
The body is elongate, head short and
mouth comparatively small. The colour of
the body is variable, depending on
spawning season and environment. It is
chiefly a river fish but is cultivated in
confined water as well.
Scientific name: Oncorhynchus mykiss
24. BROWN TROUT
• It is a native of the mountains water of
central and Western Europe. This fish was the
first one reproduced and reared artificially in
India. Although it was introduced to
mountain waters of all hills, it could establish
itself only in the streams and farms at
Kashmir and in river beas in Punjab. It feeds
upon the crustaceans and large living prey at
the bottom. It attains a maximum length
about 46.5 cm, depending upon the natural
food availability. During breeding seasons,
the fish swims up streams to spawn on
gravel bedded shallows of fast current water.
Scientific name: Salmo trutta
25. COMMON CARP
• This fish has been well cultured
in Kashmir and in the north-
eastern region. The culture is
being successfully done by
induced breeding methods.
Scientific name: Cyprinus carpio
26. CAPTURE BASED COLDWATER FISHERY
• Capture based fisheries are present in the larger lakes and the streams of
Himalaya and north east regions. The production is decreasing because of
increasing pollution and overfishing.
27. CULTURE BASED COLDWATER FISHERY
• The present exploitation of fishery resources in upland Himalayan
regions comes mainly from capture fisheries, though fish production through
culture practices is gaining momentum. At present the total fish production from
upland areas forms about 2 % of total inland fish production of India, which
forms a very small contribution to the total fish production
• To enhance the fish production, these hill states endowed with
natural lakes and reservoirs could be better utilized under culture based
capture fisheries programme. Initiatives for open water cage culture in
Himalayan lakes have also been taken up by DCFR for the stock
enhancement as well.
28. • The culture-based fisheries are mainly present in small lakes, pond and tanks.
• Mahseer, trout and common carp are mainly cultured here. The trout culture
especially rainbow trout is more popular and practiced more among the other
fish cultures.
29. FISH BASED TOURISM
• 1. Sport fishing/angling: Angling or sport fishing is classified under
ecotourism as it
has minimum adverse impact on the environment and also helps in
retaining the
beautiful natural environment, help to preserve and protect the river system
and
its surroundings, helps in the growth of fisheries resources through
protection and
preservation for its future scope and aspiration of better fishing.
Game and sport fishing, is one of the most fascinating outdoor physical
activities,
which satisfies diverse tastes and pursuits. It is one of the major sources of
recreation
30. • 2. Fish Watching: Like bird watching, fish watching also has scope for its
expansion.
Moving shoals of different size, colour and shaped fishes always provide
joy to the
visitors particularly to children. Many of the religiously protected water bodies in
the
hills like Mattan in Jammu & Kashmir, Renuka lake in Himachal Pradesh;
river
stretch of Ganga at Haridwar and Rishikesh, Gomati river at Baijnath,
Naldamayantital
in Uttarakhand are some examples of fish watching spots, which attracts
thousands
of tourists.