The persistence of coral reef frameworks requires that calcium carbonate (CaCO3) production by corals and other calcifiers outpaces CaCO3 loss via physical, chemical, and biological erosion. Coral bleaching causes declines in CaCO3 production, but this varies with bleaching severity and the species impacted. We conducted census-based CaCO3 budget surveys using the established ReefBudget approach at Cheeca Rocks, an inshore patch reef in the Florida Keys, annually from 2012 to 2016. This site experienced warm-water bleaching in 2011, 2014, and 2015. In 2017, we obtained cores of the dominant calcifying coral at this site, Orbicella faveolata, to understand how calcification rates were impacted by bleaching and how they affected the reef-wide CaCO3 budget. Bleaching depressed O. faveolata growth and the decline of this one species led to an overestimation of mean (± std. error) reef-wide CaCO3 production by + 0.68 (± 0.167) to + 1.11 (± 0.236) kg m−2 year−1 when using the static ReefBudget coral growth inputs. During non-bleaching years, the ReefBudget inputs slightly underestimated gross production by − 0.10 (± 0.022) to − 0.43 (± 0.100) kg m−2 year−1. Carbonate production declined after the first year of back-to-back bleaching in 2014, but then increased after 2015 to values greater than the initial surveys in 2012. Cheeca Rocks is an outlier in the Caribbean and Florida Keys in terms of coral cover, carbonate production, and abundance of O. faveolata, which is threatened under the Endangered Species Act. Given the resilience of this site to repeated bleaching events, it may deserve special management attention.

中文翻译：

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尽管佛罗里达群岛近海斑块礁在 5 年内发生了 3 次珊瑚白化事件，但碳酸盐生产的恢复能力

珊瑚礁框架的持久性要求珊瑚和其他钙化剂产生的碳酸钙 (CaCO3) 超过通过物理、化学和生物侵蚀产生的 CaCO3 损失。珊瑚白化会导致 CaCO3 产量下降，但这会因白化严重程度和受影响的物种而异。从 2012 年到 2016 年，我们每年都在佛罗里达群岛的近海斑块礁 Cheeca Rocks 使用既定的 ReefBudget 方法进行了基于人口普查的 CaCO3 预算调查。该地点在 2011、2014 和 2015 年经历了温水漂白。2017 年，我们在该地点获得了主要钙化珊瑚的核心，Orbicella faveolata，以了解钙化率如何受到漂白的影响以及它们如何影响整个珊瑚礁的 CaCO3 预算。漂白郁闷O。faveolata 的生长和这一物种的减少导致在使用该方法时，珊瑚礁范围内 CaCO3 的平均（± 标准误差）产量高估了 + 0.68 (± 0.167) 至 + 1.11 (± 0.236) kg m-2 年-1静态 ReefBudget 珊瑚生长输入。在非漂白年份，ReefBudget 投入略微低估了总产量 − 0.10 (± 0.022) 至 − 0.43 (± 0.100) kg m−2 year−1。碳酸盐产量在 2014 年背靠背漂白的第一年后下降，但随后在 2015 年之后增加至高于 2012 年初步调查的值。 Cheeca Rocks 是加勒比海和佛罗里达群岛的一个异常值，就珊瑚覆盖、碳酸盐而言O. faveolata 的产量和丰度，受到《濒危物种法》的威胁。鉴于该站点对重复漂白事件的恢复能力，它可能值得特别管理关注。