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首页> 外文期刊>ICES Journal of Marine Science >Fisheries for the future: greenhouse gas emission consequences of different fishery reference points
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Fisheries for the future: greenhouse gas emission consequences of different fishery reference points

机译：未来的渔业：不同渔业参考点的温室气体排放后果

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摘要

Global fisheries have for long been scrutinized in terms of ecosystem effects but only more recently for their greenhouse gas emissions. These emissions are dominated by fuel use on fishing vessels and the levels are often neglected side effects of resource overexploitation. Using a simple production model, Pella-Tomlinson, we illustrate how fuel efficiency (fuel use per unit of catch) varies with the level of exploitation and biomass depletion. For this model, fuel use per unit catch rises hyperbolically with fishing effort-it is relatively flat at low levels of effort but rises steeply as effort increases and biomass and catch decline. In light of these findings, the general fuel efficiency relationship with common fishery reference points on stock status is discussed, as well as other means of reducing fuel use and thus greenhouse gas emissions. We conclude that much may be gained by considering fuel efficiency in setting reference points for target stock biomass in fisheries and encourage further investigations.
机译：全球渔业长期以来一直在生态系统效应方面被审查，但最近仅适用于温室气体排放。这些排放由渔船上的燃料使用主导，水平往往是忽视资源过度的影响。使用简单的生产模型，Pella-Tomlinson，我们说明了燃料效率（每单位捕获量的燃料使用）随着剥削和生物质耗尽的水平而异。对于这种型号，每单位捕获的燃料使用与钓鱼努力超然地升高 - 在努力水平低的情况下相对平坦，但随着努力增加和生物量并捕获下降，急剧上升。鉴于这些调查结果，讨论了与股票现状的普通渔业参考点的一般燃料效率关系，以及其他降低燃料使用的方法，从而进行温室气体排放。我们得出结论，通过考虑在渔业中设定目标股票生物质的参考点，可以通过考虑燃料效率来获得多大。

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