Behavioural responses to sound exposure in captivity by two fish species with different hearing ability
Behavioural responses to sound exposure in captivity by two fish species with different hearing ability
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DOI：
10.1016/j.anbehav.2016.03.027
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发表时间：
2016-06
期刊：
影响因子：
2.5
通讯作者：
S. S. Sabet-S.;K. Wesdorp;James A Campbell;P. Snelderwaard;H. Slabbekoorn
中科院分区：
文献类型：
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作者：
S. S. Sabet-S.;K. Wesdorp;James A Campbell;P. Snelderwaard;H. Slabbekoorn
人类活动在水生环境中、水生环境中及其附近产生的水下声音正在增加。这种人为噪音会人为地引起环境声级升高，并对鱼类造成各种有害影响，例如暂时或永久性听力损失、掩盖相关声音信号和线索或可能产生健康后果的行为变化。此外，圈养鱼类经常暴露在嘈杂的环境中，这可能会对水产养殖的生产、实验室科学结果的偏差或业余水族馆的福利产生影响。然而，我们对鱼类如何应对人工声音暴露以及物种敏感性如何不同的了解仍然有限。在这里，我们比较了斑马鱼、斑马鱼和维多利亚湖丽鱼科鱼、Haplochromispiceatus，前者比后者对更低的绝对阈值和更宽的光谱范围敏感。实验性的声音暴露导致这两种圈养条件下的物种在暴露的第一分钟内游泳速度显着降低。此外，斑马鱼在声音暴露开始时表现出明显的惊吓反应行为，导致游泳速度最初短暂增加，而丽鱼科鱼则没有发现这种情况。这两个物种都没有在水平面上表现出远离主动说话者的空间移动，但丽鱼科鱼在声音暴露开始后向下移动，在鱼缸底部区域花费更多时间，而斑马鱼在相同的暴露水平下保持其平均游泳高度。我们的结果表明，声音暴露可以在两种鱼类中引起相似的和物种特异性的反应，并且这些反应与它们的听力差异没有明显的相关性。
Underwater sound generated by human activities is increasing in, on and near aquatic environments. Such anthropogenic noise can induce artificially elevated ambient sound levels and cause various detrimental effects in fish, such as temporary or permanent hearing loss, masking of relevant acoustic signals and cues or behavioural changes that may have fitness consequences. Also, captive fish are often exposed to noisy conditions, which may have consequences for production in aquaculture, biases in scientific results in laboratories or welfare in hobby aquaria. However, we still have limited insight into how fish cope with artificial sound exposure and how species differ in sensitivity. Here, we compared zebrafish,Danio rerio, and Lake Victoria cichlids,Haplochromispiceatus, the former being sensitive to lower absolute thresholds and wider spectral ranges than the latter. Experimental sound exposure induced a significant reduction in swimming speed in the first minute of exposure for both species in captive conditions. Furthermore, zebrafish showed clear startle response behaviour with the onset of the sound exposure leading to an initial, brief increase in swimming speed, which was not found for the cichlids. Neither species showed spatial shifts away from the active speaker in the horizontal plane, but cichlids shifted downwards to spend more time in the bottom area of the fish tank after the onset of sound exposure, while zebrafish retained their average swimming height during the same exposure levels. Our results show that sound exposure can cause both similar and species-specific responses in two fish species and that these responses are not obviously related to differences in their hearing ability.