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    Allozyme Evidence of the Bigeye Croaker (Micropogonias megalops) Fishery Collapse in the Upper Gulf of California

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    Subject
    Micropogonias megalops; Bigeye Croaker; Allozyme
    Author
    Varela-Romero, Alejandro; Grijalva-Chon, Jose M.
    Journal Title
    Scas: Bulletin of the Southern California Academy of Sciences
    Volume
    103
    Issue
    scas/vol103/iss2; 2
    Metadata
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    URI
    https://scholar.oxy.edu/handle/20.500.12711/11217
    Abstract
    Allozyme analysis was used to study the genetic variability of the <br /><br />bigeye croaker Micropogonias megalops in the Upper Gulf of California (UGC). <br /><br />Samples of 55 and 65 individuals were collected from commercial fishing zones <br /><br />in the UGC. Starch gel electrophoresis of proteins was used. Fourteen enzymatic <br /><br />systems were analyzed and 30 loci were detected. All polymorphic loci were<br />outside of the Hardy-Weinberg equilibrium and the inbreeding coefficient (Fis)<br />was 86%. Allozyme indicators were considered low for the population and indicate erosion in the genetic variability. Commercial fishing catch represents a population impact. A fishery management plan incorporated into the traditional economic activities is a proposal to assure this fishery resource.
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