Aberrations in the feeding behaviour of the Indian Mackerel, Rastrelliger kanagurta

Supraba, V and Dineshbabu, A P and Thomas, Sujitha and Rohit, Prathibha and Rajesh, K M (2014) Aberrations in the feeding behaviour of the Indian Mackerel, Rastrelliger kanagurta. Marine Fisheries Information Service; Technical and Extension Series (219). p. 26.

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    Abstract

    The food and feeding habits of the mackerel have been studied extensively, which suggest that mackerel generally adopts either filter feeding or preying on the individual animals. Plankton consisting of copepods, diatoms and dino-flagellates and small crustaceans such as the Acetes sp. are reported in their feed. However, a deviation from the normal feeding habit was observed in the gut analysis of mackerel collected on 8th October 2013 from trawlers at Mangalore Fisheries Harbour. Among the 50 stomachs analysed 4% contained oil sardines juveniles and 2% had digested squid remains as a food item. The specimens which ranged from 192 mm to 285 mm in total length and weighed 67 g to 224 g were mature with their gonad in spent or spent recovery stages. The semi-digested oil sardine present in the gut of mackerel ranged in size from 36 to 81 mm.

    Item Type: Article
    Uncontrolled Keywords: Aberrations; feeding behaviour; Indian Mackerel; Rastrelliger kanagurta
    Subjects: Pelagic Fisheries > Mackerel fishery
    Food and Feeding
    Divisions: CMFRI-Kochi > Marine Capture > Crustacean Fisheries
    Subject Area > CMFRI > CMFRI-Kochi > Marine Capture > Crustacean Fisheries
    CMFRI-Kochi > Marine Capture > Crustacean Fisheries
    Subject Area > CMFRI-Kochi > Marine Capture > Crustacean Fisheries
    Depositing User: Arun Surendran
    Date Deposited: 15 Jul 2014 03:59
    Last Modified: 09 Sep 2015 15:59
    URI: http://eprints.cmfri.org.in/id/eprint/10130

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