Optimal salinity for dominant copepods in the East China Sea, determined using a yield density model

文献类型： 外文期刊

第一作者： Xu Zhaoli

作者： Xu Zhaoli;Gao Qian

作者机构：

关键词： East China Sea;optimal salinity;pelagic copepods;yield density model;zooplankton

期刊名称：CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY （ 影响因子：1.068； 五年影响因子：0.983 ）

ISSN： 0254-4059

年卷期： 2011 年 29 卷 3 期

页码：

收录情况： SCI

摘要： From 1997 to 2000, four field surveys were conducted in the East China Sea (ECS) (23 degrees 30'-33 degrees 00'N, 118 degrees 30'-128 00'E). A field data yield density model was used to determine the optimal salinities for 19 dominant copepod species to establish the relationship between surface salinities and abundance of those species. In addition, ecological groups of the copepods were classified based on optimal salinity and geographical distribution. The results indicate that the yield density model is suitable for determining the relationship between salinity and abundance. Cosmocalanus darwini, Euchaeta rimana, Pleuromamma gracilis, Rhincalanus cornutus, Scolecithrix danae and Pareucalanus attenuatus were determined as oceanic species, with optimal salinities of >34.0. They were stenohaline and mainly distributed in waters influenced by the Kuroshio or Taiwan warm current. Temora discaudata, T. stylifera and Canthocalanus pauper were nearshore species with optimal salinities of <33.0 and most abundant in coastal waters. The remaining 10 species, including Undinula vulgaris and Subeucalanus subcrassus, were offshore species, with optimal salinity ranging from 33.0-34.0. They were widely distributed in nearshore, offshore and oceanic waters but mainly in the mixed water of the ECS.

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