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首页> 外文期刊>Frontiers in Behavioral Neuroscience >Behavioral changes in response to sound exposure and no spatial avoidance of noisy conditions in captive zebrafish
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Behavioral changes in response to sound exposure and no spatial avoidance of noisy conditions in captive zebrafish

机译：行为变化响应于暴露的声音，并在空间上避免了圈养斑马鱼的嘈杂条件

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Auditory sensitivity in fish serves various important functions, but also makes fish susceptible to noise pollution. Human-generated sounds may affect behavioral patterns of fish, both in natural conditions and in captivity. Fish are often kept for consumption in aquaculture, on display in zoos and hobby aquaria, and for medical sciences in research facilities, but little is known about the impact of ambient sounds in fish tanks. In this study, we conducted two indoor exposure experiments with zebrafish ( Danio rerio ). The first experiment demonstrated that exposure to moderate sound levels (112 dB re 1 μPa) can affect the swimming behavior of fish by changing group cohesion, swimming speed and swimming height. Effects were brief for both continuous and intermittent noise treatments. In the second experiment, fish could influence exposure to higher sound levels by swimming freely between an artificially noisy fish tank (120–140 dB re 1 μPa) and another with ambient noise levels (89 dB re 1 μPa). Despite initial startle responses, and a brief period in which many individuals in the noisy tank dived down to the bottom, there was no spatial avoidance or noise-dependent tank preference at all. The frequent exchange rate of about 60 fish passages per hour between tanks was not affected by continuous or intermittent exposures. In conclusion, small groups of captive zebrafish were able to detect sounds already at relatively low sound levels and adjust their behavior to it. Relatively high sound levels were at least at the on-set disturbing, but did not lead to spatial avoidance. Further research is needed to show whether zebrafish are not able to avoid noisy areas or just not bothered. Quantitatively, these data are not directly applicable to other fish species or other fish tanks, but they do indicate that sound exposure may affect fish behavior in any captive condition.
机译：鱼类的听觉敏感性具有多种重要功能，但也使鱼类容易受到噪声污染。在自然条件和人工饲养下，人为产生的声音可能会影响鱼类的行为方式。鱼通常被保存用于水产养殖中，在动物园和爱好水族馆中进行展示，并在研究机构中用于医学研究，但是人们对鱼缸中环境声音的影响知之甚少。在这项研究中，我们对斑马鱼（Danio rerio）进行了两个室内暴露实验。第一个实验表明，暴露于中等声级（112 dB re 1μPa）可以通过改变群体凝聚力，游泳速度和游泳高度来影响鱼的游泳行为。连续和间歇性噪音治疗的效果都很短暂。在第二个实验中，鱼可以通过在人工嘈杂的鱼缸（120–140 dB re 1μPa）和另一个环境噪声水平（89 dB re 1μPa）之间自由游泳来影响较高声级的暴露。尽管最初出现了惊吓反应，并且在短暂的一段时间内，嘈杂的水箱中的许多人潜入水底，但完全没有空间回避或依赖于噪音的水箱偏好。水箱之间每小时大约60条鱼的频繁交换率不受连续或间歇性暴露的影响。总之，一小群圈养的斑马鱼能够检测到已经处于相对较低声级的声音，并对其行为进行调整。相对较高的声音水平至少在开始时令人不安，但并未导致空间回避。需要进一步的研究来显示斑马鱼是否不能避开嘈杂的区域或只是不打扰。从数量上讲，这些数据不能直接应用于其他鱼类或其他鱼缸，但它们确实表明，声音暴露可能会在任何圈养条件下影响鱼类的行为。

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