Dynamics of Nemipterus japonicus (Bloch) stocks along the north-east coast of India

Rao, M V Hanumantha and Ghosh, Shubhadeep and Sreeramulu, K and Mahesh, V U and Kumar, M Satish and Muktha, M (2018) Dynamics of Nemipterus japonicus (Bloch) stocks along the north-east coast of India. Indian Journal of Geo-Marine Sciences (IJMS), 47 (9). pp. 1761-1768.

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Official URL: http://nopr.niscair.res.in/handle/123456789/44924
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    Abstract

    The dynamics of Nemipterus japonicus stocks along the north-east coast of India was studied using landings data from 2012-2015. Annual average landing of the northern region was 1251 t and that of the southern region was 2980 t. Growth was found to be allometric in the northern region and isometric in the southern region. Von Bertalanffy growth equation was Lt = 33.02 [1 – e – 0.38 (t + 0.0625)] in the northern region and Lt = 29.87 [1 – e – 0.42 (t + 0.0585)] in the southern region. Natural mortality, fishing mortality and total mortality ranged from 0.92 to 1.01, 0.51 to 0.57 and 1.43 to 1.58. Exploitation ratio varied between 0.35 - 0.36 and exploitation rate between 0.27 – 0.29. Annual average stock, standing stock biomass and maximum sustainable yield were 4611 t and 10403 t, 2453 t and 5228 t and 1754 t and 4130 t for the northern and southern regions.

    Item Type: Article
    Uncontrolled Keywords: Fishery;Nemipterus japonicus;North-east coast;Population parameters;Stock status
    Subjects: Demersal Fishes > Threadfin breams
    Divisions: CMFRI-Visakhapatnam
    Depositing User: Arun Surendran
    Date Deposited: 09 Apr 2019 06:01
    Last Modified: 09 Apr 2019 06:01
    URI: http://eprints.cmfri.org.in/id/eprint/13617

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