Parrotfish soundscapes: implications for coral reef management
Parrotfish soundscapes: implications for coral reef management
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鹦嘴鱼声景：对珊瑚礁管理的影响
DOI：
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发表时间：
2021
期刊：
影响因子：
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通讯作者：
KS Boyle
中科院分区：
文献类型：
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作者：
TC Tricas;KS Boyle
鹦嘴鱼是珊瑚礁上食草动物/肉食动物的重要成员。它们的摄食活动对于清除藻类和碎屑、为珊瑚和其他幼虫清理新的定居点以及生物侵蚀和珊瑚礁上沙子的重新分布都很重要。鹦鹉鱼摄食活动的估计通常是由潜水员获得的，可能会影响或忽视鱼类的行为，持续时间短，仅限于浅水栖息地，并具有有限的时间分辨率，将摄食活动与生态过程联系起来。挖掘和刮刀鹦嘴鱼有一个强大的喙状下颚形态，当牙齿刮擦坚硬的珊瑚岩石表面时会产生独特的声音。我们测试的假设，环境鹦嘴鱼咬的声音可以用来估计他们的时间模式的喂养和协会与环境变量在该地区的声学记录。声学记录仪部署在2夏威夷珊瑚礁收集周围的鱼的声音为期3年。鹦嘴鱼咬的声音表现出明显的和重复的变化，在日常，季节性和年度的喂养模式，并在统计学上与日长和潮差的因素。这项研究表明，使用鹦嘴鱼咬的声音，估计在珊瑚礁网站的喂养模式的实用程序。我们建议，定期采样的多个声学监测器可能是一个具有成本效益的和有价值的工具，用于监测健康，退化和恢复的大型珊瑚礁地区。
Parrotfishes are prominent members of the herbivore/detritivore feeding guild on coral reefs. Their feeding activity is important for the removal of algae and detritus, the clearing of new settlement sites for coral and other larvae, and the bioerosion and redistribution of sand across the reef. Estimates of parrotfish feeding activity are normally obtained by divers that may influence or overlook fish behaviors, and are of short duration, limited to shallow habitats, and have limited temporal resolution to associate feeding activity with ecological processes. Excavator and scraper parrotfishes have a robust beak-like jaw morphology that produces a unique sound as the teeth scrape the surface of hard coral rock. We tested the hypothesis that ambient parrotfish bite sounds can be used to estimate their temporal patterns of feeding and associations with environmental variates in the area of an acoustic recorder. Acoustic recorders were deployed on 2 Hawaiian reefs to collect ambient fish sounds for a period of 3 yr. Parrotfish bite sounds showed distinct and repetitive variations in daily, seasonal, and annual feeding patterns, and were statistically correlated with factors of day length and tide range. This study demonstrates the utility of using parrotfish bite sounds to estimate patterns of feeding at coral reef sites. We suggest that regular sampling by multiple acoustic monitors may be a cost-efficient and valuable tool for monitoring the health, degradation, and recovery of large coral reef areas.