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    Methodology of data collection on net selectivity and accidental mortality of fish passing through the mesh of the codend

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    Delegation of the USSR
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    This paper contains advice on determining mesh selectivity factors for trawl codends using a special liner. The design and technical specifications of the liner are described.
    It also describes an experiment to determine the accidental mortality of fish passing through the trawl codend.
    It contains proposals on standardising data collection and handling for mesh selectivity studies

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