Position: Home > Articles > Composition of stomach contents of longnose lancetfish(Alepisaurus ferox) in western tropical Pacific Ocean
South China Fisheries Science
2019
(1)
20-30
热带西太平洋帆蜥鱼胃含物组成分析
作 者：
刘攀;戴小杰;王杰;高春霞;吴峰;王学昉
单 位：
远洋渔业协同创新中心;上海海洋大学海洋科学学院;国家远洋渔业工程技术研究中心;大洋渔业资源可持续开发省部共建教育部重点实验室
关键词：
帆蜥鱼;胃含物;延绳钓;兼捕;热带西太平洋
摘 要：
根据中国金枪鱼延绳钓渔业观察员于2017年9月至2018年1月在热带西太平洋(165°45′E～178°00′W,03°02′S～18°34′S)采集的138尾帆蜥鱼(Alepisaurus ferox)样本,对其胃含物组成进行了研究。结果显示,帆蜥鱼胃含物中共鉴定出61种(类)生物,分属鱼类、软体动物、甲壳类、多毛类、刺胞动物和海樽类等6大类44科。此外,还观察到了同类相食现象以及塑料垃圾。胃含物的Shannon-Wiener多样性指数(H')为2.71,Pielou均匀度指数(J')为0.67,饵料优势指数(D)为0.12。相对重要性指数(IRI)分析结果显示软体动物为帆蜥鱼的主要食物,其IRI为7 573.31,占IRI总和百分比(IRI%)为53.11%。在科一级水平上,褶胸鱼科、帆蜥鱼科、龙骨螺科、翼管螺科、单盘蛸科、爪乌贼科、刺虾科、宽腿鰯科、Eurytheneidae和浮沙蚕科为其优势饵料。
译 名：
Composition of stomach contents of longnose lancetfish(Alepisaurus ferox) in western tropical Pacific Ocean
作 者：
LIU Pan;DAI Xiaojie;WANG Jie;GAO Chunxia;WU Feng;WANG Xuefang;College of Marine Sciences, Shanghai Ocean University;National Engineering Research Center for Distant-Water Fisheries;Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education; Shanghai Ocean University;Collaborative Innovation Center for Distant-Water Fisheries;
单 位：
LIU Pan%DAI Xiaojie%WANG Jie%GAO Chunxia%WU Feng%WANG Xuefang%College of Marine Sciences, Shanghai Ocean University%National Engineering Research Center for Distant-Water Fisheries%Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education%Shanghai Ocean University%Collaborative Innovation Center for Distant-Water Fisheries
关键词：
Alepisaurus ferox;;stomach content;;longline;;bycatch;;western tropical Pacific Ocean
摘 要：
We investigated the composition of the stomach contents of 138 longnose lancetfish(Alepisaurus ferox) collected from September 2017 to January 2018 by the Chinese Longline Fisheries Observer Programme in the western tropical Pacific Ocean(165°45′E-178°00′W, 03°02′S-18°34′S). A total of 61 species from 44 families, belonging to six prey groups(Fish, Mollusca, Crustacea, Polychaeta, Cnidaria and Thaliacea) were identified. Cannibalism and plastic debris ingestion were also observed. The obtained values of Shannon-Wiener diversity index(H'), Pielou evenness index(J') and dominance index(D) of A. ferox's diet composition were 2.71, 0.67 and 0.12, respectively. The result of index of relative importance(IRI) analysis indicates that Mollusca was the dominant prey with IRI of 7 573.31 which accounted for 53.11% of total IRI. At family level, Sternoptychidae, Alepisauridae, Carinariidae, Pterotracheidae, Bolitaenidae, Onychoteuthidae, Oplophoridae, Platyscelidae, Eurytheneidae and Alciopidae were the most important preys of A. ferox.
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