4.5 Article

Potential mechanism of sound production in Oreochromis niloticus (Cichlidae)

期刊

JOURNAL OF EXPERIMENTAL BIOLOGY
卷 212, 期 21, 页码 3395-3402

出版社

COMPANY BIOLOGISTS LTD
DOI: 10.1242/jeb.032946

关键词

Cichlidae; sound production; swimbladder; sonic mechanism

类别

资金

  1. (FRS-FNRS) [2.4.617.08.]

向作者/读者索取更多资源

Although acoustic communication is an integral part of cichlid behaviour, its mechanism has never been identified before. In the present study, a combination of approaches was used to investigate the sound-producing mechanism of Oreochromis niloticus. Synchronisation of high-speed video data (500 frames s(-1)) and cineradiographies (250 frames s(-1)) with the sound recordings made it possible to locate the different body parts involved in sound production in territorial males. Sounds are made during a backward movement of the pelvic and pectoral girdles and a forward movement of the second pterygiophore of the anal fin. Various electrostimulation experiments, dissections and observation of histological cross-sections revealed a set of bundles ( that we call the vesica longitudinalis) situated in the hypaxial musculature, ventro-laterally to the swimbladder. Contraction of these bundles should result in compression of the rib cage and also of the swimbladder, because of its close association with the serosa and ribs. Deflation of the swimbladder resulted in a reduced sound intensity.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.5
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据