王恕桥,张灵燕,张秀梅,王茂林,张沛东,黄国强

• 1:中国海洋大学教育部海水养殖重点实验室
• 2:大连海洋大学农业部海洋水产增养殖学重点开放实验室

摘要(Abstract)：

研究了Ca2+由自然海水浓度突变到低浓度和高浓度时,褐牙鲆(Paralichthys olivaceus)幼鱼渗透调节能力的变化。通过测定实验鱼的血清渗透压、鳃、肠、肾Na+-K+-ATPase和Ca2+-ATPase活力及血清离子含量的变化,探讨了褐牙鲆幼鱼应对水体Ca2+突变时的渗透调节机制。结果表明,海水盐度不变,Ca2+浓度在1.25～100mmol.L-1之间发生突变时,褐牙鲆幼鱼血清渗透压无显著变化,其主要通过调节鳃、肠、肾Na+-K+-ATPase和Ca2+-ATPase活力及改变血清Ca2+和Mg2+含量来维持体液离子的动态平衡。

关键词(KeyWords)： Ca2+;褐牙鲆;血清渗透压;Na+-K+-ATPase;Ca2+-ATPase;血清离子

Abstract:

Keywords:

基金项目(Foundation): 国家公益性行业(农业)科研专项(201003068)资助

作者(Author): 王恕桥,张灵燕,张秀梅,王茂林,张沛东,黄国强

DOI: 10.16441/j.cnki.hdxb.2013.04.006

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