Global decline in capacity of coral reefs to provide ecosystem services
Global decline in capacity of coral reefs to provide ecosystem services
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DOI：
10.1016/j.oneear.2021.08.016
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发表时间：
2021-09-17
期刊：
影响因子：
16.2
通讯作者：
Cheung, William W. L.
中科院分区：
文献类型：
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作者：
Eddy, Tyler D.;Lam, Vicky W. Y.;Cheung, William W. L.
世界各地的珊瑚礁正面临着气候变化、过度捕捞、栖息地破坏和污染的影响。这些影响对全球珊瑚礁提供生态系统服务能力的累积影响尚不清楚。在这里，我们评估了珊瑚礁栖息地，珊瑚礁渔业渔获量和努力，珊瑚礁鱼类的土著消费和珊瑚礁相关的生物多样性的程度的全球变化。自20世纪50年代以来，全球活珊瑚覆盖率下降了一半。珊瑚礁相关鱼类的渔获量在2002年达到顶峰，尽管捕捞努力量增加，但渔获量仍在下降，自1950年以来，单位捕捞努力量下降了60%。至少有63%的珊瑚礁相关生物多样性随着珊瑚面积的减少而减少。由于预计珊瑚礁将继续退化，生物多样性和渔获量将随之减少，依赖珊瑚礁生态系统服务的人类社区的福祉和可持续沿海发展受到威胁。
Coral reefs worldwide are facing impacts from climate change, overfishing, habitat destruction, and pollution. The cumulative effect of these impacts on global capacity of coral reefs to provide ecosystem services is unknown. Here, we evaluate global changes in extent of coral reef habitat, coral reef fishery catches and effort, Indigenous consumption of coral reef fishes, and coral-reef-associated biodiversity. Global coverage of living coral has declined by half since the 1950s. Catches of coral-reef-associated fishes peaked in 2002 and are in decline despite increasing fishing effort, and catch-per-unit effort has decreased by 60% since 1950. At least 63% of coral-reef-associated biodiversity has declined with loss of coral extent. With projected continued degradation of coral reefs and associated loss of biodiversity and fisheries catches, the well-being and sustainable coastal development of human communities that depend on coral reef ecosystem services are threatened.