【作者】 张翼； 姜亚洲； 张辉； 李圣法；

【Author】 ZHANG Yi;JIANG Yazhou;ZHANG Hui;LI Shengfa;East China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences;Key Laboratory of East China Sea and Oceanic Fishery Resources Exploitation,Ministry of Agriculture;

【机构】 中国水产科学研究院东海水产研究所农业部东海与远洋渔业资源开发利用重点实验室；

【摘要】 为研究黑鲷耳石锶标记技术,本研究利用Sr Cl2·6H2O对黑鲷幼鱼进行18、24、30、36ppm Sr2+标记,标记7天后检测耳石上锶的沉积。研究结果表明:(1)通过人工方法提高水体锶离子浓度可使标记黑鲷耳石某区段Sr/Ca比值明显升高,形成与野生个体在该区段的Sr/Ca比值显著差异(P<0.01);18~36ppm的低浓度锶标记是可靠有效的。(2)锶标记对黑鲷生长阶段无特殊要求;18~36ppm浓度锶标记的标记成功率都为100%。(3)标记组和对照组黑鲷死亡率无显著差异(P?0.05)。停止给锶后,鱼体内锶浓度可迅速恢复至正常水平。表明锶标记技术对受标个体生长存活不会产生显著负面影响,适用于大规模标记。更多还原

【Abstract】 To explore the Sr2+ sedimentation on otolith of black bream, black bream embryos were exposed to culture water contained Sr2+ at Sr2+ concentration of 18,24,30,36 mg · L-1 for 7days to imitate Sr2+ sedimentation. The results showed that:(1) a obvious high Sr sedimentation were produced in the otolith of black bream; the Sr chemistry marker under Sr2+ concentration of18~36 mg·L-1.(2)the mark success rate were 100%;(3)the death rate of the black bream being treated didn’t show significant difference of the control group. The study indicate that the Sr chemistry marking technique apply to Large-scale tag.更多还原