Carapace colour morphs of the blue swimmer crab Portunus pelagicus population in Mandapam (Palk Bay and Gulf of Mannar) region

Anbarasu, M and Nazar, A K A and Sakthivel, M and Tamilmani, G and Jayasingh, M (2019) Carapace colour morphs of the blue swimmer crab Portunus pelagicus population in Mandapam (Palk Bay and Gulf of Mannar) region. Indian Journal of Geo-Marine Sciences, 48 (9). pp. 1364-1369.

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    Abstract

    The study analyzed the live colour pattern present on the carapace of Portunus pelagicus. Our results indicated that the occurrence of three major colour morphs in the population of P. pelagicus with an intraspecific variation among the female population in Mandapam (Palk Bay and Gulf of Mannar) region. The crab population was dominated by carapace colour morph Type 2 (51.27%) in Palk Bay and Type 3 (54.80%) in Gulf of Mannar. There was no evidence of a colour morph difference between ages in observed specimens. The colour morphotypes showed significant difference in the analysed population, among and between the sexes.

    Item Type: Article
    Uncontrolled Keywords: Manna crab;Carapace;Colour pattern;Palk Bay;Gulf of Mannar
    Subjects: Crustacean Fisheries > Crabs
    Divisions: CMFRI-Mandapam
    Depositing User: Arun Surendran
    Date Deposited: 09 Oct 2019 10:03
    Last Modified: 09 Oct 2019 10:03
    URI: http://eprints.cmfri.org.in/id/eprint/13878

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