Swimming behavior in relation to buoyancy in an open swimbladder fish, the Chinese sturgeon

文献类型： 外文期刊

第一作者： Wei, Q.

作者： Wei, Q.;Yang, D.;Chen, X.;Du, H.;Watanabe, Y.;Yang, J.;Sato, K.;Yang, J.;Naito, Y.;Miyazaki, N.

作者机构：

关键词： swim bladder;sturgeon

期刊名称：JOURNAL OF ZOOLOGY （ 影响因子：2.322； 五年影响因子：2.434 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： The swimbladder of fishes is readily compressed by hydrostatic pressure with depth, causing changes in buoyancy. While modern fishes can regulate buoyancy by secreting gases from the blood into the swimbladder, primitive fishes, such as sturgeons, lack this secretion mechanism and rely entirely on air gulped at the surface to inflate the swimbladder. Therefore, sturgeons may experience changes in buoyancy that will affect their behavior at different depths. To test this prediction, we attached data loggers to seven free-ranging Chinese sturgeons Acipenser sinensis in the Yangtze River, China, to monitor their depth utilization, tail-beating activity, swim speed and body inclination. Two distinct, individual-specific, behavioral patterns were observed. Four fish swam at shallow depths (7-31 m), at speeds of 0.5-0.6 m sp#, with ascending and descending movements of 1.0-2.4 m in amplitude. They beat their tails continuously, indicating that their buoyancy was close to neutral with their inflated swimbladders. In addition, their occasional visits to the surface suggest that they gulped air to inflate their swimbladders. The other three fish spent most of their time (88-94%) on the river bottom at a depth of 106-122 m with minimum activity. They occasionally swam upwards at speeds of 0.6-0.8 m sp# with intense tailbeats before gliding back passively to the bottom, in a manner similar to fishes that lack a swimbladder. Their bladders were probably collapsed by hydrostatic pressure, resulting in negative buoyancy. We conclude that Chinese sturgeons behave according to their buoyancy, which varies with depth due to hydrostatic compression of the swimbladder.

分类号： Q959

  • 相关文献

[1]Comparative blood biochemistry of Amur sturgeon, Acipenser schrenckii, and Chinese surgeon, Acipenser sinensis. Shi, Xiaotao,Li, Dapeng,Zhuang, Ping,Nie, Fen,Long, Liangqi. 2006

[2]Extraction of fish oil from the muscle of sturgeon using supercritical fluids. Hao, Shuxian,Hui, Huang,Li, Laihao,Yang, Xianqing,Cen, Jianwei,Lin, Wanling,Wei, Ya. 2013

[3]The Characteristics Of Gelatin Extracted From Sturgeon (acipenser Baeri) Skin Using Various Pretreatments. Hao, Shuxian,Li, Laihao,Yang, Xianqing,Cen, Jianwei,Shi, Hong,Bo, Qi,He, Junyan.

[4]The complete mitochondrial genome of Russian sturgeon (Acipenser gueldenstaedti). Dong, Chuanju,Chen, Baohua,Dong, Chuanju,Chen, Baohua,Xu, Jian,Xu, Peng,Sun, Xiaowen,Mahboob, Shahid,Al-Ghanim, K.,Xu, Peng,Mahboob, Shahid.

[5]Ontogenetic behavior and migration of kaluga, Huso dauricus. Li, Yanhua,Wei, Qiwei,Li, Qiankun,Kynard, Boyd,Li, Yanhua,Wei, Qiwei,Zhang, Hui,Du, Hao,Li, Yanhua,Wei, Qiwei,Zhang, Hui,Du, Hao.

[6]Changes in growth and osmoregulation during acclimation to saltwater in juvenile Amur sturgeon Acipenser schrenckii. Zhao Feng,Zhuang Ping,Zhang Longzhen,Hou Junli. 2010

[7]Mixed mycobacterial infections in farmed sturgeons. Zhang, De Feng,Zhang, Xu Jie,Li, Tong Tong,Li, Ai Hua,Gong, Xiao Ning,Zhang, De Feng,Ji, Cheng.

[8]Development and characterization of new microsatellite markers for Amur sturgeon (Acipenser schrenckii). Liu, Yang,Li, Chao,Cheng, Lei,Lu, Cui-Yun,Sun, Xiao-Wen. 2014

[9]Genetic identification of the caviar-producing Amur and Kaluga sturgeons revealed a high level of concealed hybridization. Boscari, Elisa,Congiu, Leonardo,Barmintseva, Anna,Mugue, Nikolai S.,Barmintseva, Anna,Mugue, Nikolai S.,Zhang, Shuhuan,Yue, Huamei,Li, Chuangju,Wei, Qiwei W.,Shedko, Sergei V.,Lieckfeldt, Dietmar,Ludwig, Arne,Ludwig, Arne,Congiu, Leonardo.

[10]Chemical characteristics and antithrombotic effect of chondroitin sulfates from sturgeon skull and sturgeon backbone. Gui, Meng,Song, Juyi,Zhang, Lu,Wu, Ruiyun,Ma, Changwei,Li, Pinglan,Song, Juyi,Wang, Shun.

[11]The effects of different extraction methods on composition and storage stability of sturgeon oil. Li, Laihao.

作者其他论文 更多>>

微信小程序