Stock assessment of big eye croaker Pennahia macrophthalamus (Bleeker) (pisces/ Perciformes /Sciaenidae) from Bombay waters

Chakraborty, S K (1996) Stock assessment of big eye croaker Pennahia macrophthalamus (Bleeker) (pisces/ Perciformes /Sciaenidae) from Bombay waters. Indian Journal of Marine Sciences, 25. pp. 316-319.

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    Abstract

    Growth, mortality and stock assessment of big eye croaker Pennahia macrophthalamus(Bleeker) is reported in the present communication. The asymptotic length of this species is estimated as 260mrn and growth coefficient 1.20 per year.The total, natural and fishing mortalities were estimated as 3.24, 2.81 and 0.43 respectively.The stock assessment studies were carried out using length cohort and Thompson & Ben model. The result of this study shows that there is no decline in the catch of this species at the present level of exploitation. However, it is observed that even if the fishing efforts are doubled the catch can go up by only 12.74%.Therefore, further increase in the efforts is detrimental to the stock of Pmacrophthalamus and the returns may not be remunerative.

    Item Type: Article
    Uncontrolled Keywords: Stock assessment; big eye croaker; Pennahia macrophthalamus; Perciformes; Sciaenidae; Bombay
    Subjects: Marine Fisheries > Stock Assessment
    Demersal Fishes > Sciaenids
    Divisions: CMFRI-Kochi > Marine Capture > Demersal Fisheries
    Subject Area > CMFRI Brochures > CMFRI-Kochi > Marine Capture > Demersal Fisheries
    CMFRI-Kochi > Marine Capture > Demersal Fisheries
    Depositing User: Arun Surendran
    Date Deposited: 20 Jan 2011 12:09
    Last Modified: 09 Sep 2015 15:41
    URI: http://eprints.cmfri.org.in/id/eprint/7033

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