4,116 research outputs found

    पर्यवरण और क्रस्टेशिया की मात्स्यिकी

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    Crustacean fishery resources of India- Winter School on Towards Ecosystem Based Management of Marine Fisheries – Building Mass Balance Trophic and Simulation Models

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    Crustaceans comprising numerous edible species of prawns, lobsters and crabs inhabiting different ecosystems form significant portion of the aquatic food resources of the world. The average annual production of edible marine crustaceans of India during 1995- 2001 was 0.36 million tonnes. Due to ever increasing demand for edible marine crustaceans from foreign markets, there has been heavy exploitation of these resources in an unprecedented scale from the Indian seas. Enhancement of fishing effort in deeper grounds, modernization of craft and gears and intensive fishing has resulted in enormous fishing pressure on these resources

    Hydrographic features off northeast coast and Andaman - Nicobar Islands in relation to demersal finfish resources

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    Temperature varied from 17.6 to 28.5°C, salinity values from 32.12 to 35.21 x 10"" and dissolved oxygen from 0.8 to 4.41 ml/1. No identifiable relationship could be established between these three parameters and the total fish abundance, probably because the catch was made up of many species having different requirements. Higher abundance of trawl catches was from January to May when bottom water temperature was relatively low. The highest level of abundance of 2764 kg/hr in February 1989 was recorded when the parameters were 26°C, 33.6 x 10" and 2.71 ml/1; and the lowest level of 43.2 kg/hr in July 1988 was when the parameters were 25.3°C, 34.48 x 10'^ and 1.6 ml/1

    Salinity changes in the estuary and the coastal sea adjacent to the portmouth at Cochin

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    The article deals with the details of salinity changes in the Cochin estuary and its influence and interrelations with the Vembanad lake

    Consultancy services in marine fisheries- A profile of technologies and experts

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    The ICAR system currently needs very effective partnership between the researchers and the user groups. The Central Marine Fisheries Research Institute, a premier Institute under the ICAR, has taken effective steps to introduce the services and technologies in the marine fisheries sector, achieved over the last 50 years R & D activities. With a viev/ to institutionalising transfer of technologies, the institute has constituted a Consultancy Processing Cell (CPC) in 1997 for effectively serving the needs of our clients, through the short term and long term trainings, consultancies, contract services and contract research

    Critical marine habitat restoration programme - initiative on mangrove restoration in Kerala, India

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    Mangroves are unique habitats which function as nursery ground for several valuable species of finfishes and shellfishes and they play a vital role in supporting marine food chains, protecting coastal areas and in improving water quality. Mangroves in general have relatively high productivity and tend to create highly organic soil and also export organic matter to nearby marine environments. They are effective in stabilizing soils in intertidal areas. Some species of mangroves have been planted in the coastal areas as bio-protection shields to guard coastal households from wind and wave action. They provide shelter to several avian fauna which feed on its fruits and nest in the branches. Rare or endangered species of birds have also been documented in the mangroves
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