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Sustainability of fishery bycatch: a process for assessing highly diverse and numerous bycatch

机译：渔业兼捕的可持续性：评估高度多样和大量兼捕的过程

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摘要

In tropical prawn(shrimp)trawl fisheries it is daunting to assess the sustainability of bycatch species because they are diverse and there is little historical and biological information for quantitative stock assessments. We developed a process to examine the likely impact of prawn trawling on the sustainability of bycatch species and applied this to fish bycatch in the Australian Northern Prawn Fishery. The 411 fish bycatch species were ranked with respect to biological and ecological criteria that contributed to two overriding characteristics namely first, their suscepti- bility to capture and mortality due to prawn trawling, and second the population's capacity to recover after depletion.
机译：在热带虾（对虾）拖网渔业中，评估兼捕种类的可持续性是艰巨的，因为它们种类繁多，几乎没有用于定量种群评估的历史和生物学信息。我们开发了一种程序来研究虾拖网捕捞对兼捕物种可持续性的可能影响，并将其应用于澳大利亚北部大虾渔业的鱼类兼捕。对411种鱼类兼捕物种的生物学和生态学标准进行了排名，这两个主要特征是：第一，对虾捕捞的易感性和死亡率，其次，虾在枯竭后的恢复能力。

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