Recovery of reef‐scale calcification following a bleaching event in Kāne'ohe Bay, Hawai'i
Recovery of reef‐scale calcification following a bleaching event in Kāne'ohe Bay, Hawai'i
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夏威夷卡内奥赫湾白化事件后珊瑚礁钙化的恢复
DOI：
10.1002/lol2.10056
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发表时间：
2018
影响因子：
7.8
通讯作者：
A. J. Andersson
中科院分区：
文献类型：
--
作者：
Travis A. Courtney;E. H. D. Carlo;Heather N. Page;K. Bahr;A. Barro;Noah M. Howins;R. Tabata;G. Terlouw;Kuʻulei S. Rodgers;A. J. Andersson
越来越多的人为干扰已经导致许多以珊瑚为主的珊瑚礁状态的衰退，威胁到关键的生态系统功能，如礁层钙化和增生。很少有研究调查珊瑚漂白对珊瑚礁钙化的影响。在这项研究中，我们监测了夏威夷Kāne'ohe湾沿着近岸-离岸样带的海湾范围内的碱度异常，作为2015年珊瑚漂白事件期间净钙化的代表，并在整个季节周期内恢复。我们在2015年10月的漂白事件中没有观察到净钙化，随后在2016年6月，2016年11月和2017年2月在一系列海水温度和水动力条件下恢复到显著的正净钙化率。调查日期之间的漂白后净钙化率没有显著差异，并且与先前研究中的漂白前净钙化率范围一致，表明Kāne'ohe湾的净钙化在2015年漂白事件后完全恢复。
Increasing anthropogenic disturbances have driven declines of many coral‐dominated reef states, threatening critical ecosystem functions such as reef‐scale calcification and accretion. Few studies have investigated the effect of coral bleaching on reef‐scale calcification. In this study, we monitored bay‐wide alkalinity anomalies in Kāne'ohe Bay, Hawai'i along an inshore‐offshore transect as a proxy for net calcification during the 2015 coral bleaching event and following recovery over a full seasonal cycle. We observed no net calcification in October 2015 during the bleaching event followed by a recovery to significant, positive net calcification rates in June 2016, November 2016, and February 2017 across a range of seawater temperatures and hydrodynamic conditions. Post‐bleaching net calcification rates were not significantly different between survey dates and agreed with the range of pre‐bleaching net calcification rates from a previous study suggesting that net calcification in Kāne'ohe Bay had fully recovered following the 2015 bleaching event.