Marine Ecosystems Challenges and Opportunities (MECOS 09) Book of Abstracts

Vivekanandan, E and Najmudeen, T M and Naomi, T S and Gopalakrishnan, A and Jayachandran, K V and Harikrishnan, M (2014) Marine Ecosystems Challenges and Opportunities (MECOS 09) Book of Abstracts. Convener, MECOS 09 For and on behalf of the Marine Biological Association of India, Kochi.

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    Abstract

    Marine ecosystems contain several unique qualities that set them apart from other ecosystems. Of the 89 elements occurring in nature, the presence of 80 has been confirmed in seawater. It is perhaps true that the remaining 9 elements are also present, but in concentrations too small to be detected. This wide range of substances dissolved in seawater has placed the marine organisms in a more advantageous position than their freshwater counterparts. These elements provide the essential materials required for the synthesis of all the basic nourishments of the body including the skeletal support of marine animals. In the terrestrial ecosystems, the physical boundaries are well marked and environmental variabilities are rather wide. The terrestrial organisms and ecosystems have developed internal mechanisms to cope up with variabilities. In contrast, in the marine ecosystems, the physical variability is small and extends over very long time scales due to the large thermal capacity of the oceans and the long periods of exchange between deep and near shore waters. Consequently, the marine ecosystems are more vulnerable to large-scale environmental changes because they do not have the internal adaptability inherent in the terrestrial systems.

    Item Type: Book
    Uncontrolled Keywords: MECOS 09
    Subjects: Marine Environment
    Marine Ecosystems
    Divisions: CMFRI-Kochi > Marine Capture > Pelagic Fisheries
    Subject Area > CMFRI > CMFRI-Kochi > Marine Capture > Pelagic Fisheries
    CMFRI-Kochi > Marine Capture > Pelagic Fisheries
    Subject Area > CMFRI-Kochi > Marine Capture > Pelagic Fisheries
    Depositing User: Arun Surendran
    Date Deposited: 06 Jan 2017 09:41
    Last Modified: 06 Jan 2017 09:41
    URI: http://eprints.cmfri.org.in/id/eprint/11428

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