Ocean acidification does not impair the behaviour of coral reef fishes
Ocean acidification does not impair the behaviour of coral reef fishes
复制标题
DOI：
10.1038/s41586-019-1903-y
复制
发表时间：
2020-01-08
期刊：
影响因子：
64.8
通讯作者：
Sundin, Josefin
中科院分区：
文献类型：
--
作者：
Clark, Timothy D.;Raby, Graham D.;Sundin, Josefin
与以前的研究相反，现在的分析表明，海洋酸化不会扰乱珊瑚礁鱼类的重要行为，例如避免捕食者的化学线索。在过去的世纪，海洋中的二氧化碳分压迅速增加，推动海洋酸化，并引起人们对海洋生态系统稳定性的关注（1-3）。珊瑚礁鱼类被预测特别容易受到世纪末海洋酸化的影响，这是基于几篇备受瞩目的论文（4，5），这些论文报道了严重的行为和感觉障碍，例如，在海洋酸化的条件下，完全被捕食者的化学线索所吸引。在这里，我们全面和透明地表明，与以前的研究相比，本世纪末的海洋酸化水平对珊瑚礁鱼类的重要行为的影响可以忽略不计，例如避免来自捕食者的化学线索，鱼类活动水平和行为偏侧化（左-右转向偏好）。使用数据模拟，我们还表明，在以前的几项研究中报告的大效应量和小组内方差是非常不可能的。总之，我们的研究结果表明，报告的海洋酸化对珊瑚礁鱼类的行为的影响是不可复制的，这表明行为扰动不会是高CO2海洋中珊瑚礁鱼类的主要后果。
In contrast to previous studies, analyses now show that ocean acidification does not perturb important behaviours-such as the avoidance of chemical cues from predators-of coral reef fishes.The partial pressure of CO2 in the oceans has increased rapidly over the past century, driving ocean acidification and raising concern for the stability of marine ecosystems(1-3). Coral reef fishes are predicted to be especially susceptible to end-of-century ocean acidification on the basis of several high-profile papers(4,5) that have reported profound behavioural and sensory impairments-for example, complete attraction to the chemical cues of predators under conditions of ocean acidification. Here, we comprehensively and transparently show that-in contrast to previous studies-end-of-century ocean acidification levels have negligible effects on important behaviours of coral reef fishes, such as the avoidance of chemical cues from predators, fish activity levels and behavioural lateralization (left-right turning preference). Using data simulations, we additionally show that the large effect sizes and small within-group variances that have been reported in several previous studies are highly improbable. Together, our findings indicate that the reported effects of ocean acidification on the behaviour of coral reef fishes are not reproducible, suggesting that behavioural perturbations will not be a major consequence for coral reef fishes in high CO2 oceans.