The oceans’ fisheries contribute to human wellbeing by providing essential nutrients, employment, and income. Changes in fish distribution, due to climate change or stock expansion, jeopardize conservation objectives because fishers catch more than is allocated as quota. Quotas, or catch shares, should, therefore, correspond to the share of the fish stock biomass present within a country's Exclusive Economic Zone, a concept known as Zonal Attachment. Here, we assess the Zonal Attachment of transboundary fish stocks present in northern Europe, in the waters of the United Kingdom, the European Union (without the United Kingdom), and Norway. In 12 of 14 important fish stocks, estimates of Zonal Attachment to the United Kingdom were significantly higher than current quota allocations, explaining the country's substantial discard problem. With environmental change, and stock recovery under improved fisheries conservation, scientific evidence should be used not only to set catch limits, but also to re‐examine catch shares.

中文翻译：

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鱼类分布揭示了区域依恋与配额分配之间的差异

海洋渔业通过提供必要的营养，就业和收入来促进人类福祉。由于气候变化或种群增加，鱼类分布的变化危及保护目标，因为渔民的捕捞量超过了配额。因此，配额或捕获量应对应于一个国家的专属经济区（一种称为分区附件）中的鱼类生物量所占的份额。在这里，我们评估了存在于北欧，英国，欧洲联盟（不包括英国）和挪威的水域中的跨界鱼类种群的区域附着。在14种重要鱼类种群中的12种中，对联合王国的地带附着量的估计数大大高于目前的配额分配，这解释了该国的大量丢弃物问题。