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ECB-ART-51262
Nat Ecol Evol 2022 Nov 01;611:1700-1709. doi: 10.1038/s41559-022-01882-0.
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Fish community structure and dynamics are insufficient to mediate coral resilience.

Cline TJ , Allgeier JE .


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Coral reefs are being impacted by myriad stressors leading to drastic changes to their structure and function. Fishes play essential roles in driving ecosystem processes on coral reefs but the extent to which these processes are emergent at temporal or ecosystem scales or otherwise masked by other drivers (for example, climatic events and crown-of-thorns starfish outbreaks) is poorly understood. Using time series data on fish community composition and coral and macroalgae percentage cover between 2006 and 2017 from 57 sites around Mo'orea, Polynesia, we found that fish community diversity predicts temporal stability in fish biomass but did not translate to temporal stability of coral cover. Furthermore, we found limited evidence of directional influence of fish on coral dynamics at temporal and ecosystem scales and no evidence that fish mediate coral recovery rate from disturbance. Our findings suggest that coral reef fisheries management will benefit from maintaining fish diversity but that this level of management is unlikely to strongly mediate coral loss or recovery over time.

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References [+] :
Adam, How will coral reef fish communities respond to climate-driven disturbances? Insight from landscape-scale perturbations. 2014, Pubmed, Echinobase