Sea urchin diversity and its resources from the Gulf of Mannar

Saravanan, Raju and Sadiq, I Syed and Jawahar, P (2018) Sea urchin diversity and its resources from the Gulf of Mannar. In: Perspectives in Biodiversity of India. Centre for Innovation in Science and Social Action, Thiruvananthapuram, pp. 194-196. ISBN 978-81-937930-0-8

Raju Saravanan_2018_Sea urchin Diversity-IBC2017.pdf

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    A detailed investigation was undertaken for a period of 20 months from October 2013 to May 2015 to study the landing characteristics and species diversity of sea urchins in two landing centresviz., Pampan and Vedalai along the Mandapam coast of Gulf of Mannar. A total of 16 species of regular sea urchin have been documented during the study period. The species S. virgulata and T. toreumaticus were abundant in the catch between December and March period and the maximum total landing were found to be 7,239 kg and 3,103 Kg respectively in the trawl landing at Pampan. The landings were estimated to be 2,819 kg of S. virgulata and 1,208 kg of T. toreumaticus at Vedalai, which is a major bottom set gill net landing centre. The species composition of these two species were analysed to be 70:30 for S. virgulata and T. toreumaticus respectively in the landings. The morphometric study revealed that the overall population showed a great concentration of lengths within the diameter classes 20 – 60 mm for S. virgulata and 20 – 45 mm for T. toreumaticus.

    Item Type: Book Section
    Uncontrolled Keywords: Sea urchin,Gulf of Mannar, Echinoid, Species diversity
    Subjects: CMFRI Departments > CMFRI-Kochi > Biodiversity
    CMFRI > CMFRI-Kochi > Biodiversity
    CMFRI-Kochi > Biodiversity
    CMFRI-Kochi > Biodiversity

    Echinoderms > Sea Urchin
    Divisions: CMFRI-Mandapam
    Depositing User: Arun Surendran
    Date Deposited: 11 Oct 2018 06:53
    Last Modified: 11 Oct 2018 06:53

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