Indian Efforts on the Inventorization of Marine Mammal Species for their Conservation and Management

Jayasankar, P and Anoop, B and Rajagopalan, M and Yousuf, K S S M and Reynold, P and Krishnakumar, P K and Afsal, V V and Anoop, A K (2009) Indian Efforts on the Inventorization of Marine Mammal Species for their Conservation and Management. Asian Fisheries Science, 22. pp. 143-155.


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    The present study is the first attempt to use molecular tools for identification of marine mammals in India. The objective was to develop a database of genetic sequences for future marine mammal research in addition to confirming the species identity of cetaceans and dugongs using a molecular approach. Partial sequencing of mitochondrial DNA loci was carried out in accidentally caught/stranded specimens of Spinner dolphin (Stenella longirostris), Pantropical spotted dolphin/bridled dolphin (Stenella attenuata), Bottlenose dolphin (Tursiops aduncus), Long-beaked common dolphin (Delphinus capensis), Indopacific humpbacked dolphin (Sousa chinensis), Risso’s dolphin (Grampus griseus), Finless porpoise (Neophocaena phocaenoides), Sperm whale (Physeter macrocephalus), Blue whale (Balaenoptera musculus), Bryde’s whale (Balaenoptera edeni) and Dugong (Dugong dugon). Molecular identification of species was done by phylogenetic reconstruction of the sequences using portals GenBank and DNA Surveillance. Apart from ratifying their morphological identification, the analysis was able to distinguish specimens that otherwise, could not have been identified using conventional approaches. Phylogenetic analysis of the Sousa-Stenella-Tursiops-Delphinus group indicated more or less robust monophyly for all species in this complex, except Delphinus capensis. A sister-group relationship for Sperm whales and Baleen whales was evident, that would place the former closer to the latter than to any other group of toothed whales.

    Item Type: Article
    Uncontrolled Keywords: Marine Mammal Species; Conservation; Management
    Subjects: Marine Fisheries > Conservation
    Marine Mammals
    Divisions: CMFRI-Kochi > Fishery Extension
    Subject Area > CMFRI > CMFRI-Kochi > Fishery Extension
    CMFRI-Kochi > Fishery Extension
    Subject Area > CMFRI-Kochi > Fishery Extension
    Depositing User: Arun Surendran
    Date Deposited: 26 Oct 2010 09:31
    Last Modified: 09 Sep 2015 15:34

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