A Possible Connectivity among Estuarine Tapertail Anchovy (Coilia nasus) Populations in the Yangtze River, Yellow Sea, and Poyang Lake

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• 作者：Tao Jiang ; Hongbo Liu ; Mingjie Lu ; Tingting Chen ; Jian Yang
• 关键词：Connectivity ; Coilia nasus ; LA ; ICPMS ; Otolith nucleus ; Element composition ; Otolith microchemistry
• 刊名：Estuaries and Coasts
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：39
• 期：6
• 页码：1762-1768
• 全文大小：783 KB
• 刊物类别：Earth and Environmental Science
• 刊物主题：Environment
  Environment
  Ecology
  Geosciences
  Environmental Management
  Nature Conservation
  
• 出版者：Springer New York
• ISSN：1559-2731
• 卷排序：39

文摘

Estuarine tapertail anchovy (Coilia nasus) is a highly commercial and valuable anadromous fish species in China. Due to the complex anadromous life cycle, it remains difficult to assess the degree of connectivity among groups of C. nasus in the Yangtze River, its connecting lakes, and adjacent seas. In this study, laser ablation inductively coupled plasma mass spectrometry (LA-ICPMS) was used to analyze the element composition in the otolith nucleus region of C. nasus specimens from the Yangtze River Estuary, Poyang Lake, and Nantong coastal waters in the estuary adjacent to the Yellow Sea. The content ratios of seven elements (Na, Mn, Fe, Ni, Cu, Sr, and Ba) to Ca in the nucleus indicated a close relationship among C. nasus specimens collected from the Yangtze River Estuary (Spring group), Poyang Lake, and Yellow Sea, suggesting a possible connectivity mechanism for anchovies in the three water bodies. Poyang Lake, Yangtze River, and Yellow Sea seem to be the natal lake, migration pathway, and feeding ground, respectively.