fishy culture Bio ppt1.1

Mar 7, 20152 likes1,180 views

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.

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 Fish Farming
 Capture & Culture Fishing
 Marine Fisheries
 Mariculture
 Inland Fisheries
 Composite Fish farming
 Quality Fish Seed

• Fish is a cheap source of animalprotein.

• Enclosures like tanks are used to produce
fish for commercial purposes, called fish
farming.

• Capture Fishing: Capture fishing involves
obtaining fish from natural resources. Like in
sea water or fresh water.
• Culture Fishing: Culture fishing involves
culturing the fish in small enclosures.

• Fishing in saltwater regions is called Marine
Fisheries.
• Mariculture involves culturing of fish in
marine water.
• Marine fishery resources include 7,500 KM
of the Indian Coastline.

• Fishes harvested from saltwater regions.

• Mariculture involves culturing of fish in
marine water.
• Mariculture is a specialized branch
of aquaculture involving the cultivation
of marine organisms for food and other
products in the open ocean, an enclosed
section of the ocean.

• Inland fisheries comprise fresh water &
sea water where fish are trapped or
captured.
• Fresh water resources include canals,
ponds, reservoirs & rivers.
• Sea water resources include oceans.
• There is an overlap between bodies of
water classified as coastal and
bodies of water classified as estuaries.
lagoons

• The Composite fish farming system is a technology developed in India by the
Indian Council of Agricultural Research in the 1970s.
• In this system both local and imported fish species, a combination of five or
six fish species is used in a single fish pond.
• These species are selected so that they do not compete for food among
them having different types of food habitats.
• As a result the food available in all the parts of the pond is used.
• Fish used in this system include catla and silver carp which are surface
feeders, rohu a column feeder and mrigal and common carp which are
bottom feeders.
• Other fish will also feed on the excreta of the common carp and this helps
contribute to the efficiency of the system which in optimal conditions will
produce 3000–6000 kg of fish per hectare per year.

Grass Carp
Catlas
Rohus
Common Carp
Mrigal
Surface Feeders
Middle-Zone Feeders
Bottom Feeders
Weed Feeders

• These fishes can use all the foodin the pond
without fightingwith each other.
• This increases the fish yieldfrom the pond.

• In intensive culture systems there is a decreased dependence on the
availability of natural food and greater dependency on the use of
commercial feeds.
• Densities of fish kept within such holding areas are limited by species
tolerance, ability to grow at raised stocking densities and maintenance
of environmental parameters rather than the production of a natural
food supply.

• Extensive aquaculture is the other form of fish farming.
• Extensive aquaculture is more basic than intensive aquaculture in
that less effort is put into the husbandry of the fish.
• Extensive aquaculture is done in the ocean, natural and man-made
lakes, bays, rivers, and Fiords.
• Fish are contained within these habitats by multiple mesh enclosures
which also function as trapping nets during harvest.

• One problem with such composite fish culture is that
many of these fish breed only during monsoon.
• Even if fish seed is collected from the wild, it can be
mixed with that of other species as well. So, a major
problem in fish farming is the lack of availability of good-
quality seed.
• To overcome this problem, ways have now been worked
out to breed these fish in ponds using hormonal
stimulation.
• Fishes are now injected with hormones that stimulate
the production of eggs or seeds.
• This has ensured the supply of pure fish seed in desired
quantities.

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Aquaculture, or pisciculture, has undergone significant transformation from its early origins in ancient China and Egypt to the technologically advanced methods employed today. Traditional systems, such as pond and pen culture, have evolved into modern techniques, including Recirculatory Aquaculture Systems (RAS), Integrated Multi-Trophic Aquaculture (IMTA), and biofloc technology. These advancements reflect a global shift toward sustainable fish farming practices, aimed at increasing production efficiency while minimizing environmental impacts. Current fish farming methods are diverse, tailored by factors such as species, salinity, and management intensity. Systems range from extensive, low-input methods to intensive aquaculture operations characterized by high stocking densities, optimal water quality management, and advanced feeding protocols. Techniques such as cage culture and raceway culture allow for higher productivity, particularly for species like salmon and tilapia, while reducing the reliance on natural fisheries. The future of aquaculture will rely on advanced technologies like AI, automated feeding, and real-time water quality monitoring. Innovations such as aquaponics and genetically improved strains will boost productivity. Sustainable practices, including organic aquaculture and biosecurity measures, will ensure the industry meets growing demand for high-quality, responsibly sourced seafood.

Different Fish Farming Methods in the World.pptxRajesh Chudasama

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Fish is an important source of animal protein that is obtained through both capture fishing from natural sources like oceans and rivers, as well as fish farming. There are two main types of fisheries - marine fisheries, which catch fish like tuna, mackerel and sardines from boats in sea water, and some fish are also farmed in sea water, and inland fisheries, where fish farming is done in freshwater and brackish water mixtures, and common farmed varieties include rohu, catla and carp species.

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PsciculturePREJITH AYLARA

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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.

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Different Fish Farming Methods in the World.pptxRajesh Chudasama

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fishy culture Bio ppt1.1

5. Hey, Fisherman!Hey, Gentleman!How was you, my friend? I am fine! Thankyou! What do you know about, “Fishing”? Okay! I gonna tell you about, “Fishing”? Let’s go ahead!

6.  Fish Farming  Capture & Culture Fishing  Marine Fisheries  Mariculture  Inland Fisheries  Composite Fish farming  Quality Fish Seed

7. • Fish is a cheap source of animalprotein.

8. • Enclosures like tanks are used to produce fish for commercial purposes, called fish farming.

9. Catla Rohu

10. Prawn Molluscs

11. Capture Fishing Culture Fishing

12. • Capture Fishing: Capture fishing involves obtaining fish from natural resources. Like in sea water or fresh water. • Culture Fishing: Culture fishing involves culturing the fish in small enclosures.

13. Fishing Marine Fishery Inland Fishery

14. • Fishing in saltwater regions is called Marine Fisheries. • Mariculture involves culturing of fish in marine water. • Marine fishery resources include 7,500 KM of the Indian Coastline.

15. Mackerel Pomphret Tuna

16. • Fishes harvested from saltwater regions.

17. • Mariculture involves culturing of fish in marine water. • Mariculture is a specialized branch of aquaculture involving the cultivation of marine organisms for food and other products in the open ocean, an enclosed section of the ocean.

19. • Inland fisheries comprise fresh water & sea water where fish are trapped or captured. • Fresh water resources include canals, ponds, reservoirs & rivers. • Sea water resources include oceans. • There is an overlap between bodies of water classified as coastal and bodies of water classified as estuaries. lagoons

22. • The Composite fish farming system is a technology developed in India by the Indian Council of Agricultural Research in the 1970s. • In this system both local and imported fish species, a combination of five or six fish species is used in a single fish pond. • These species are selected so that they do not compete for food among them having different types of food habitats. • As a result the food available in all the parts of the pond is used. • Fish used in this system include catla and silver carp which are surface feeders, rohu a column feeder and mrigal and common carp which are bottom feeders. • Other fish will also feed on the excreta of the common carp and this helps contribute to the efficiency of the system which in optimal conditions will produce 3000–6000 kg of fish per hectare per year.

23. Grass Carp Catlas Rohus Common Carp Mrigal Surface Feeders Middle-Zone Feeders Bottom Feeders Weed Feeders

24. • These fishes can use all the foodin the pond without fightingwith each other. • This increases the fish yieldfrom the pond.

25. • In intensive culture systems there is a decreased dependence on the availability of natural food and greater dependency on the use of commercial feeds. • Densities of fish kept within such holding areas are limited by species tolerance, ability to grow at raised stocking densities and maintenance of environmental parameters rather than the production of a natural food supply.

26. • Extensive aquaculture is the other form of fish farming. • Extensive aquaculture is more basic than intensive aquaculture in that less effort is put into the husbandry of the fish. • Extensive aquaculture is done in the ocean, natural and man-made lakes, bays, rivers, and Fiords. • Fish are contained within these habitats by multiple mesh enclosures which also function as trapping nets during harvest.

27. • One problem with such composite fish culture is that many of these fish breed only during monsoon. • Even if fish seed is collected from the wild, it can be mixed with that of other species as well. So, a major problem in fish farming is the lack of availability of good- quality seed. • To overcome this problem, ways have now been worked out to breed these fish in ponds using hormonal stimulation. • Fishes are now injected with hormones that stimulate the production of eggs or seeds. • This has ensured the supply of pure fish seed in desired quantities.

29. Tha nksFrom Ritik Sharma –

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fishy culture Bio ppt1.1

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