Isosmotic points and their ecological significance for juvenile Chinese sturgeon Acipenser sinensis
文献类型: 外文期刊
作者: Zhao, F. 1 ; Zhuang, P. 1 ; Zhang, T. 1 ; Wang, Y. 1 ; Hou, J. 1 ; Liu, J. 1 ; Zhang, L. 2 ;
作者机构: 1.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Key Lab East China Sea & Ocean Fishery Resources, Minist Agr, Shanghai 200090, Peoples R China
2.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Key Lab East China Se
关键词: Acipenseridae;brackish water;habitat;isoionic;osmoregulation;Yangtze Estuary
期刊名称:JOURNAL OF FISH BIOLOGY ( 影响因子:2.051; 五年影响因子:2.25 )
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收录情况: SCI
摘要: Serum osmolality and ion concentrations were measured in juvenile Chinese sturgeon Acipenser sinensis at different salinities to determine the isosmotic point. Isosmotic and isoionic concentrations were calculated from the regressions for serum and ambient osmolality, with Na+, Cl- and K+ as salinities 919, 817, 789 and 970, respectively. These values were consistent with the salinity of the habitat where juvenile A. sinensis occur in the Yangtze Estuary, suggesting that an isosmotic salinity is an important factor driving their habitat choice. (C) 2015 The Fisheries Society of the British Isles
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