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Increases in jellyfish biomass in the Bering Sea: implications for the ecosystem

机译:白令海中水母生物量的增加:对生态系统的影响

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There has been a dramatic increase in jellyfish biomass over the eastern Bering Sea shelf since the early 1990s, which was previously hypothesize to have been triggered by changing climate and ocean conditions. We examine the hypothesis that the presence of these large carnivores has affected fisheries resources, either through direct predation on larval stages, or through compe- tition for zooplankton prey. In this paper, we explore the impact of this jellyfish increase on zoo- plankton and fish communities based on field data on the composition of the jellyfish community, and the abundance, size, stable isotopic signatures, and feeding habits of the principal scyphomedusae in the region.
机译:自1990年代初以来,白令海东部陆架上的水母生物量急剧增加,以前假设这是由于气候和海洋条件的变化引起的。我们检验了以下假设:这些大型食肉动物的存在通过直接捕食幼体阶段或通过竞争浮游动物猎物而影响了渔业资源。在本文中,我们根据有关水母群落组成的实地数据以及该水域主要甲状旁腺的丰度,大小,稳定的同位素特征和摄食习惯,根据野外数据探讨了这种水母增加对浮游生物和鱼类群落的影响。区域。

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