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    Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12348/2854

    VPA estimates of fishing mortality and exploited biomass from Sardinella aurita catch-at-length data in eastern Venezuela

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    Abstract
    • In this study, length-frequency data on Spanish sardine (Sardinella aurita) from northeastern Venezuela were analyzed for the period 1967-1989. Average growth parameters for the von Bertalanffy equation were established as L sub( infinity )= 26.6 cm (TL) and K = 1.26 year super(-1). The number of recruits to the fishing area, estimated from length-structured Virtual Population Analysis, varied from <10 super(8) in the late 1960s to >10 super(9) at the end of the 1980s. Exploited biomass estimates for the same period varied from less than 20,000 t in the first year to more than 100,000 in 1989. Both recruitment and exploited biomass showed different seasonal patterns between 1976-1983 and 1984-1988. Despite some uncertainty regarding these estimates, it is considered that major population tendencies are adequately represented by this analysis.
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    • Resilient small-scale fisheries [1058]
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    • na_2673.pdf (409.0Kb)
    Date
    • 1994
    Author
    • Mendoza, J.J.
    • Fréon, P.
    • Guzmán, R.
    AGROVOC Keywords
    • fish
    Type
    • Journal Article
    Publisher
    • ICLARM
    Metadata
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