1,344 research outputs found

    Marine biodiversity of India -Winter School on Impact of Climate Change on Indian Marine Fisheries held at CMFRI, Cochin 18.1.2008 to 7.2.2008

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    Biodiversity plays a decisive role in maintaining the ecological balance of the earth. Towards the end of the 20th century, humankind grew conscious of its unprecedented impact upon natural environments and the danger of exhausting biological resources. Therefore, biodiversity emerged as an environmental issue in the early 1980s, culminating in the Conference on Sustainable Development held in Rio de Janeiro in 1992. At the same time, biological diversity was recognized as an essential parameter, in particular for the agro and pharmaceutical industries

    A Study on the Gorgonid bed off Chennai and its qualitative appraisal

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    Gorgonian corals or horny corals are corrunon tropical and subtropical octocorallian cnidarians having biomedical importance. This group includes the sea fans, sea feathers and sea whips. The discovery of prostaglandins and other natural products from gorgonids triggered off a worldwide hunt for this chemically rich animals. The present paper describes the status of taxonomy of seven species collected from the Kovalam shore, Chennai. They are referable to three families and five genera. Species such as Echinomuricea indica Thomson and Simpson, Gorgonella umbraculum (Ellis and Solander) and Pseudothesea pallida (Nutting) forms the mainstay of Kovalam waters, off Chennai

    तटीय जैवविविधता- परिरक्षण एवं प्रबंधन

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    प्रवाल झाडियों पर अध्ययन

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    Marine Fishery Development and Climate Change

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    Marine fisheries have very important roles for food supply, food security and income generation in India. About one million people work directly in this sector, producing 3.1 million tonnes annually. The value of the marine fish landings have been estimated at Rs. 36,964 crores in 2010 and India has earned a foreign exchange of Rs. 10,000 crores through the export of 6 lakh tonnes of sea food products. The fisheries sector, presently contributes around one percent to the GDP and 4.72 percent to Agricultural GDP of our country (Sathiadhas et al., 2012). Being open access to a large extent, there is intense competition among the stakeholders with varied interests to share the limited resources in the coastal waters, which has resulted in overfishing and decline in stocks of a few species. Climate change renders severity to this situation and act as a dispensatory factor on fish populations. Further, it will also have strong impact on fisheries with far-reaching consequences for food and livelihood security of a sizeable section of the population

    Preliminary studies on the growth in captivity of Spirastrella inconstans (Dendy) collected from the intertidal region of Palk Bay, south-east coast of India

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    Marine sponges are rich sources of bioactive metabolites that can be used as lead compounds to treat various diseases. Although concerted efforts resulted in the development of many new bioactive compounds from marine sponges, only very few compounds have reached the clinical trial stage. One of the reasons for this, as cited by many workers is that many of the sponge bioactive metabolites are highly toxic, thus leading to a low therapeutic index. However, the second major reason is the ‘supply problem’. Collection of large quantities of sponge biomass from the wild becomes a pre-requisite for obtaining sufficient amounts of metabolites from natural populations. Consequently, the natural populations may not be able to sustain such heavy exploitation

    केंद्रीय समुद्री मात्स्यिकी अनुसंधान संस्थान का विषींजम अनुसंधान केंद्र

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    केंद्रीय समुद्री मात्स्यिकी अनुसंधान संस्थान का विषींजम अनुसंधान केंद्

    समुद्री पर्यावरण तंत्र का प्रकार्य और समुद्री जैवविविधता

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