Tricas Timothy C, Webb Jacqueline F
Department of Biology, Hawai'i Institute of Marine Biology, University of Hawai'i at Manoa, 2538 The Mall, Edmondson Hall, Honolulu, HI, 96822, USA.
Department of Biological Sciences, University of Rhode Island, 120 Flagg Road, Kingston, RI, 02881, USA.
Adv Exp Med Biol. 2016;877:57-92. doi: 10.1007/978-3-319-21059-9_5.
Coral reef fishes live in noisy environments that may challenge their capacity for acoustic communication. Butterflyfishes (Family Chaetodontidae) are prominent and ecologically diverse members of coral reef communities worldwide. The discovery of a novel association of anterior swim bladder horns with the lateral line canal system in the genus Chaetodon (the laterophysic connection) revealed a putative adaptation for enhancement of sound reception by the lateral line system and/or the ear. Behavioral studies show that acoustic communication is an important component of butterflyfish social behavior. All bannerfish (Forcipiger, Heniochus, and Hemitaurichthys) and Chaetodon species studied thus far produce several sound types at frequencies of <1 to >1000 Hz. Ancestral character state analyses predict the existence of both shared (head bob) and divergent (tail slap) acoustic behaviors in these two clades. Experimental auditory physiology shows that butterflyfishes are primarily sensitive to stimuli associated with hydrodynamic particle accelerations of ≤500 Hz. In addition, the gas-filled swim bladder horns in Chaetodon are stimulated by sound pressure, which enhances and extends their auditory sensitivity to 1700-2000 Hz. The broadband spectrum of ambient noise present on coral reefs overlaps with the frequency characteristics of their sounds, thus both the close social affiliations common among butterflyfishes and the evolution of the swim bladder horns in Chaetodon facilitate their short-range acoustic communication. Butterflyfishes provide a unique and unexpected opportunity to carry out studies of fish bioacoustics in the lab and the field that integrate the study of sensory anatomy, physiology, evolution, and behavioral ecology.
珊瑚礁鱼类生活在嘈杂的环境中，这可能会挑战它们的声学交流能力。蝴蝶鱼（蝴蝶鱼科）是全球珊瑚礁群落中显著且生态多样的成员。在蝴蝶鱼属中发现前鳔角与侧线管道系统的一种新关联（侧线 - 鳔连接）揭示了一种可能的适应性变化，以增强侧线系统和/或耳朵的声音接收能力。行为研究表明，声学交流是蝴蝶鱼社会行为的重要组成部分。迄今为止研究的所有banner鱼（钻嘴鱼属、月蝶鱼属和多带蝴蝶鱼属）和蝴蝶鱼物种都会产生几种频率范围从小于1赫兹到大于1000赫兹的声音类型。祖先特征状态分析预测这两个进化枝中存在共同的（头部摆动）和不同的（尾部拍打）声学行为。实验听觉生理学表明，蝴蝶鱼主要对与水动力粒子加速度≤500赫兹相关的刺激敏感。此外，蝴蝶鱼属中充满气体的鳔角会受到声压刺激，这增强并扩展了它们对1700 - 2000赫兹的听觉敏感性。珊瑚礁上存在的宽带环境噪声频谱与它们声音的频率特征重叠，因此蝴蝶鱼常见的紧密社会联系以及蝴蝶鱼属中鳔角的进化都有助于它们进行短距离声学交流。蝴蝶鱼为在实验室和野外开展鱼类生物声学研究提供了一个独特且意想不到的机会，该研究整合了感觉解剖学、生理学、进化和行为生态学的研究。
