Statistical analysis on ecological adaptation of pelagic Amphipoda in the East China Sea

作     者：XU Zhaoli XU Zhaoli1 1 Key Laboratory of Marine and Estuarine Fisheries Resources and Ecology of Ministry of Agriculture,East China Sea Fisheries Research Institute,Chinese Academy of Fisheries Sciences,Shanghai 200090,China

作者机构：Key Laboratory of Marine and Estuarine Fisheries Resources and Ecology of Ministry of Agri- culture East China Sea Fisheries Research Institute Chinese Academy of Fisheries Sciences Shanghai 200090 China 

出 版 物：《Acta Oceanologica Sinica》 (海洋学报（英文版）)

年 卷 期：2009年第28卷第6期

页      面：61-69页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 0707[理学-海洋科学] 071002[理学-动物学] 

基　　金：The China Major Research Plan of the National Natural Science Foundation of China under contract No.90511005 "908" Project under contract No.908-02-01-03 

主　　题：East China Sea zooplankton Amphipoda ecological adaptation optimal tempera- ture optimal salinity 

摘      要：This article studied the diversity of Amphipoda＇s environmental adaptation using statistic method- ology based on the seasonal investigation data obtained from the East China Sea waters （23°30′- 33°N, 118°30′128°E） from 1997 to 2000. Fifty-four Amphipoda species were identified： among which eight species could stand a temperature difference over 10 ℃ and eight species could tolerate the temperature gap ranged from 5 to 10 ℃; while only six species could stand the salinity fluctuation more than 5. Based on above facts as well as calculated optimal temperature and salinity we divided all Amphipoda species into four groups： （1） eurythermic and euryhalinous species including Lestrigonus schizogeneios, L. macrophthalmus, Tetrathyrus forcipatus, L. bengalensis and Hyperi- oides sibaginis; （2） temperate-warm species containing Hyperoche medusarum, Parathemisto gau- dichaudi, Themisto japonica and Hyperia galba; （3） oceanic tropical species consisted of Oxycephalus clausi~ Lyeaea pulex, Eupronoe minuta, Simorhychotus antennarius, O. poreelus, Platyscelus ovoides and Rhabdosoma ahitei; （4） subtropical species involving one nearshore subtropical water species （Corophium uenoi） and 37 offshore subtropical ones. Compared with other zooplankton such as Eu- phausia and Chaetognatha, Amphipoda was characterized by low dominance but wide distribution in the East China Sea, and this could be ascribed to its high adaptation diversity.