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Quantitative observations of a major coral bleaching event in Barbados, Southeastern Caribbean

机译：加勒比海南部巴巴多斯发生的一次重大珊瑚褪色事件的定量观测

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In late summer 2005 a mass coral bleaching event occurred in the Caribbean. Here we quantify coral bleaching in Barbados at six sites on the island’s sheltered west and exposed southwest coasts, including nearshore fringing and patch reefs and offshore bank reef habitats. Onset of coral bleaching occurred in late August 2005 and persisted for many months after temperatures cooled. All reef habitats and virtually all coral taxa were affected, with an average of 70.6% of all colonies bleaching. Nearshore reefs (15 m) with an average of 80.6% of all coral colonies bleaching compared with 60.5% on the latter. Inter-species variation in susceptibility to bleaching was marked with >90% of colonies bleaching in some species whilst <10% bleached in others. Follow-up surveys revealed low coral mortality, with an overall mean of 3.8% partial colony death across all species and reefs by February 2006. However, bleached condition has persisted with a mean of 37.7% of all coral colonies still bleached after 5 1/2 months, indicating that loss of live coral is likely to continue for some time. This event represents the most severe bleaching episode ever witnessed on Barbados’ reefs and emphasises the vulnerability of small island states, with a high reliance on healthy coral reef ecosystem services, to elevated sea water temperatures associated with climate variability and global climate change.
机译：2005年夏末，加勒比海发生了大规模的珊瑚白化事件。在这里，我们对巴巴多斯岛受庇护的西部和西南沿海裸露的六个地点的珊瑚漂白进行了量化，其中包括近岸边缘和斑块礁以及近岸礁石栖息地。珊瑚白化病始于2005年8月下旬，温度下降后持续了数月之久。所有的珊瑚礁栖息地和几乎所有的珊瑚类群都受到了影响，平均所有殖民地的漂白率为70.6％。近岸珊瑚礁（15 m）平均占所有珊瑚群落漂白的80.6％，而后者占60.5％。物种间对漂白敏感性的差异以某些物种中90％以上的菌落漂白为标志，而在另一些物种中则小于10％。后续调查显示，珊瑚死亡率低，到2006年2月，所有物种和礁石的平均部分殖民地死亡总数为3.8％。但是，漂白状况持续存在，在5 1 /之后，仍然有平均37.7％的所有珊瑚殖民地被漂白。 2个月，表明活珊瑚的损失可能会持续一段时间。该事件代表了巴巴多斯珊瑚礁有史以来最严重的漂白事件，并强调了高度依赖健康珊瑚礁生态系统服务的小岛国对气候变化和全球气候变化相关的海水温度升高的脆弱性。

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