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Impacts of heat stress and storm events on the benthic communities of Kenting National Park (Taiwan)
PeerJ ( IF 2.3 ) Pub Date : 2021-07-23 , DOI: 10.7717/peerj.11744 Lauriane Ribas-Deulofeu, Vianney Denis, Pierre-Alexandre Château, Chaolun Allen Chen
PeerJ ( IF 2.3 ) Pub Date : 2021-07-23 , DOI: 10.7717/peerj.11744 Lauriane Ribas-Deulofeu, Vianney Denis, Pierre-Alexandre Château, Chaolun Allen Chen
Over the past few decades, extreme events—such as ocean warming, typhoons, and coral bleaching—have been increasing in intensity and frequency, threatening coral reefs from the physiological to ecosystem level. In the present study, the impacts of rising seawater temperatures, typhoons, and coral bleaching events on benthic communities were seasonally assessed over a 21 month-period, using photo-transects at 11 sites in Kenting National Park (KNP), Taiwan. Between August 2015 and April 2017, seven typhoon events were recorded and in situ seawater temperatures in KNP reached a maximum of 31.2 °C, as opposed to an average maximum SST of 28.8 °C (2007–2016). The state and response of benthic communities to these events were interpreted based on the environmental conditions of KNP. The repeated storms lowered the levels of thermal stress during the 2015–2016 El Niño event and may have mitigated its impact on the Taiwanese coral reefs. However, storm-induced local shifts from coral to macro-algae dominance were observed. Storms may mitigate the negative effects of heatwaves, but the mechanical damage induced by the storms may also decrease the structural complexity of reefs and their associated diversity. Eventually, despite reef persistence, the composition and function of remnant communities may profoundly diverge from those in regions with less active storms.
更新日期：2021-07-23
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