Rapid ecosystem-scale consequences of acute deoxygenation on a Caribbean coral reef.
Rapid ecosystem-scale consequences of acute deoxygenation on a Caribbean coral reef.
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DOI:
10.1038/s41467-021-24777-3
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发表时间:
2021-07-26
影响因子:
16.6
通讯作者:
Altieri AH
中科院分区:
文献类型:
--
作者:
Johnson MD;Scott JJ;Leray M;Lucey N;Bravo LMR;Wied WL;Altieri AH
Loss of oxygen in the global ocean is accelerating due to climate change and eutrophication, but how acute deoxygenation events affect tropical marine ecosystems remains poorly understood. Here we integrate analyses of coral reef benthic communities with microbial community sequencing to show how a deoxygenation event rapidly altered benthic community composition and microbial assemblages in a shallow tropical reef ecosystem. Conditions associated with the event precipitated coral bleaching and mass mortality, causing a 50% loss of live coral and a shift in the benthic community that persisted a year later. Conversely, the unique taxonomic and functional profile of hypoxia-associated microbes rapidly reverted to a normoxic assemblage one month after the event. The decoupling of ecological trajectories among these major functional groups following an acute event emphasizes the need to incorporate deoxygenation as an emerging stressor into coral reef research and management plans to combat escalating threats to reef persistence. How acute deoxygenation events affect tropical marine ecosystems remains poorly understood. This study integrates analyses of coral reef benthic communities with microbial community sequencing to show how a deoxygenation event rapidly altered a shallow tropical coral reef ecosystem in the Caribbean.
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