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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Thresholds Of Hypoxia For Marine Biodiversity
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Thresholds Of Hypoxia For Marine Biodiversity

机译：海洋生物多样性的低氧阈值

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摘要

Hypoxia is a mounting problem affecting the world's coastal waters, with severe consequences for marine life, including death and catastrophic changes. Hypoxia is forecast to increase owing to the combined effects of the continued spread of coastal eutrophi-cation and global warming. A broad comparative analysis across a range of contrasting marine benthic organisms showed that hypoxia thresholds vary greatly across marine benthic organisms and that the conventional definition of 2 mg O_2/liter to designate waters as hypoxic is below the empirical sublethal and lethal O_2 thresholds for half of the species tested. These results imply that the number and area of coastal ecosystems affected by hypoxia and the future extent of hypoxia impacts on marine life have been generally underestimated.
机译：缺氧是一个影响世界沿海水域的日益严重的问题，对海洋生物造成严重后果，包括死亡和灾难性变化。由于沿海富营养化的持续蔓延和全球变暖的综合影响，预计缺氧会加剧。对一系列不同的海洋底栖生物进行广泛的比较分析表明，各海洋底栖生物的缺氧阈值相差很大，传统的定义为2 mg O_2 / L表示缺氧的水低于经验性亚致死和致死性O_2阈值的一半。测试的物种。这些结果表明，低氧影响的沿海生态系统的数量和面积以及低氧对海洋生物的未来影响程度普遍被低估了。

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