Effects of boat engine noise on the auditory sensitivity of the fathead minnow, Pimephales promelas
Effects of boat engine noise on the auditory sensitivity of the fathead minnow, Pimephales promelas
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DOI：
10.1023/a:1014266531390
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发表时间：
2002-02-01
影响因子：
1.4
通讯作者：
Yan, HY
中科院分区：
文献类型：
--
作者：
Scholik, AR;Yan, HY
鱼类经常暴露在水下声学环境中的各种噪声源中。这些声音中有许多来自人类活动，特别是船只的引擎。从一艘小船与一个55马力的舷外马达产生的噪音播放回黑头呆鱼，黑头呆鱼，2小时在142分贝（re：1 μ Pa），和听觉阈值进行了测量，使用听觉脑干反应（ABR）技术。结果表明，船舶发动机噪声显着提高鱼的听觉阈值在1 kHz（7.8 dB），1.5 kHz（13.5 dB），和2.0 kHz（10.5 dB），最敏感的听觉范围的这个物种。如此短的噪声暴露时间导致听觉能力的显着变化，这意味着船舶发动机产生的人为噪声可能对鱼类产生深远的环境影响。
Fishes are constantly exposed to various sources of noise in their underwater acoustic environment. Many of these sounds are from anthropogenic sources, especially engines of boats. Noise generated from a small boat with a 55 horsepower outboard motor was played back to fathead minnows, Pimephales promelas, for 2 h at 142 dB (re: 1 muPa), and auditory thresholds were measured using the auditory brainstem response (ABR) technique. The results demonstrate that boat engine noise significantly elevate a fish's auditory threshold at 1 kHz (7.8 dB), 1.5 kHz (13.5 dB), and 2.0 kHz (10.5 dB), the most sensitive hearing range of this species. Such a short duration of noise exposure leads to significant changes in hearing capability, and implies that man-made noise generated from boat engines can have far reaching environmental impacts on fishes.