Coral reefs are highly diverse and productive ecosystems, and certain oceanographic processes, such as El Niño, have resulted in severe coral bleaching and mortality of reef‐building corals and to the global decline of the area covered by coral reefs. Here, we report the response of corals and both green and red filamentous and coralline algae from the central Mexican Pacific coast to the 2015–16 El Niño event. Sea surface temperature (SST) was recorded in the area between june 2012 and December 2018. Additionally, SST, DHW and the Oceanic El Niño Index (ONI) provided by NOAA for the El Niño 3 region during the same period were considered. Relative cover (%) of healthy, pale, bleached and dead corals, coral rubble, filamentous algae, rocks, and sand were recorded at five reefs during 2010, 2015, and 2018. Between April 2015 and April 2016, the SST was warmer than average, and the ONI showed temperature anomalies near 3, indicating a strong El Niño event. The response of corals varied among reefs and years. No relevant changes in substrata cover were recorded at two reefs through the years, but extensive coral bleaching occurred at the other reefs in June 2015, with dramatic coral mortality as a consequence. An inability to recover and the resulting dominance of filamentous algae over dead corals was evident at two reefs in January 2018. Multivariate analysis based on the cover of substrata and the comparison with previous studies suggested that the response of the coral reefs was not related to the previous state of conservation or the level of anthropogenic impact at each reef. The causes of such thermal resistance are uncertain; nonetheless, it has a high potential to cope with future El Niño impacts.

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2015-16厄尔尼诺事件对墨西哥中部太平洋沿岸珊瑚礁的影响

珊瑚礁是高度多样化和富有生产力的生态系统，某些海洋学过程（例如厄尔尼诺现象）已导致严重的珊瑚白化和造礁珊瑚的死亡，并导致全球范围内的珊瑚礁覆盖面积下降。在这里，我们报告了从墨西哥中部太平洋沿岸到2015-16年厄尔尼诺事件的珊瑚以及绿色和红色丝状及珊瑚藻的反应。在2012年6月至2018年12月之间记录了该地区的海表温度（SST）。此外，还考虑了同期由NOAA提供的ElNiño3地区的SST，DHW和大洋厄尔尼诺指数（ONI）。在2010年，2015年和2018年期间，在五个礁石上记录了健康，淡色，漂白和死掉的珊瑚，珊瑚瓦砾，丝状藻类，岩石和沙子的相对覆盖率（％）。在2015年4月至2016年4月之间，SST高于平均水平，ONI显示温度异常接近3，表明发生了强烈的厄尔尼诺事件。珊瑚的反应随礁石和年份的不同而不同。多年来，在两个礁石上均未记录到下层覆盖的相关变化，但在2015年6月，在其他礁石上发生了广泛的珊瑚白化，结果造成了严重的珊瑚死亡。在2018年1月的两个礁石上，无法恢复且丝状藻类对死珊瑚的优势仍很明显。基于地层覆盖度的多变量分析以及与先前研究的比较表明，珊瑚礁的响应与珊瑚礁的无相关性。每个礁石的先前保护状态或人为影响水平。这种热阻的原因尚不确定。尽管如此，