Some characteristics of the mackerel fishery in India

Yohannan, T M and Ganga, U and Rohit, Prathibha and Pillai, P P and Nair, P N Radhakrishnan and Gopakumar, G and Srinivasagam, K and Krishnan, K S and Sumithrudu, M S (2000) Some characteristics of the mackerel fishery in India. Marine Fisheries Information Service, Technical and Extension Series, 164. pp. 1-5.

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    Abstract

    The recent increases in the catch of mackerel from the deeper waters of the Calicut - Cochin area indicate that the fish move down to deeper areas during summer due to the thermocline. Spreading of trawling to deeper waters, with the opening up of export market for cephalopods, can be the reason for the increased catch of mackerel by trawls. The most successful period of recruitment to the mackerel fishery coincides with upwelling (Mackerel form large shoals to feed on the plankton that is abundant due to upwelling, making surface fishery highly successful.) which guarantees abundance of stock during the period. Intensity of upwelling increases catchability and can result in a decline in spawning stock and recruitment. This can be one of the reasons for wide annual fluctuations in the catch of this resource.

    Item Type: Article
    Uncontrolled Keywords: Mackerel; Cochin; upwelling; thermocline; India; trawling; landings; mackerel fishery
    Subjects: Demersal Fishes > Mackerel
    Divisions: CMFRI-Kochi > Marine Capture
    Subject Area > CMFRI Brochures > CMFRI-Kochi > Marine Capture
    CMFRI-Kochi > Marine Capture
    Depositing User: Users 137 not found.
    Date Deposited: 09 Sep 2010 09:28
    Last Modified: 09 Sep 2015 15:26
    URI: http://eprints.cmfri.org.in/id/eprint/4306

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