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当前位置: 首页 > 文章 > 信江发现溯河洄游型刀鲚的实证研究 中国水产科学 2015 (5) 978-985
Position: Home > Articles > Existence of anadromous Coilia nasus in Xinjiang River of Jiangxi Province as determined by otolith microchemistry Journal of Fishery Sciences of China 2015 (5) 978-985

信江发现溯河洄游型刀鲚的实证研究

作  者：
卢明杰;姜涛;刘洪波;陈婷婷;杨健
单  位：
上海海洋大学;中国水产科学研究院;南京农业大学
关键词：
刀鲚;耳石;电子探针;信江;鄱阳湖
摘  要：
利用电子探针微区分析技术,对2014年8月1日采自江西省余干县瑞洪镇信江(鄱阳湖水系五大河流之一)江段的刀鲚(Coilia nasus)的矢耳石进行了锶和钙的微化学分析研究。元素定量线分析表明,样品的锶钙比值(Sr/Ca×103)波动显著,不仅具有对应淡水生活的低值(Sr/Ca×103<3),而且出现了对应于海水生活的高值(3
译  名：
Existence of anadromous Coilia nasus in Xinjiang River of Jiangxi Province as determined by otolith microchemistry
作  者：
LU Mingjie;JIANG Tao;LIU Hongbo;CHEN Tingting;YANG Jian;College of Fisheries and Life Science, Shanghai Ocean University;Wuxi Fisheries College, Nanjing Agricultural University;Key Laboratory of Fishery Ecological Environment Assessment and Resource Conservation in Middle and Lower Reaches of the Yangtze River, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences;
关键词：
Coilia nasus;;otolith;;electron probe microanalyzer;;Xinjiang River;;Poyang Lake
摘  要：
The estuarine tapertail anchovy Coilia nasus(Clupeiformes, Engraulidae) is a highly commercial migratory fish species in the Yangtze River. Because of adverse human activities such as overfishing, C. nasus production has sharply declined. Investigating the large-scale distribution of this fish is very important for evaluation of its resources and habitat. Previous evidence revealed the existence of anadromous C. nasus in Poyang Lake; this study was conducted to confirm whether there is also anadromous C. nasus in the Xinjiang River. An electron probe microanalyzer was applied to analyze Sr and Ca microchemistry patterns in otoliths of C. nasus collected from the Ruihong section of the Xinjiang River(the most distant branch of Poyang Lake, ~1000 km from the Yangtze River estuary) near Yugan County in Jiangxi Province. Line transect results clearly showed a complex Sr/Ca ratio(i.e., Sr/Ca×103) pattern, including low-ratio freshwater habitat(Sr/Ca×103<3) and high-ratio seawater habitat(3

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