文献类型: 外文期刊
作者: Xu Zhaoli 1 ;
作者机构: 1.Chinese Acad Fisheries Sci, E China Sea Fisheries Res Inst, Minist Agr, Key Lab Marine & Estuarine Fisheries Resources &, Shanghai 200090, Peoples R China
关键词: East China Sea;zooplankton;Amphipoda;ecological adaptation;optimal temperature;optimal salinity
期刊名称:ACTA OCEANOLOGICA SINICA ( 影响因子:1.431; 五年影响因子:1.445 )
ISSN: 0253-505X
年卷期: 2009 年 28 卷 6 期
页码:
收录情况: SCI
摘要: This article studied the diversity of Amphipoda's environmental adaptation using statistic methodology based on the seasonal investigation data obtained from the East China Sea waters (23 degrees 30'-33 degrees N, 118 degrees 30'-128 degrees E) from 1997 to 2000. Fifty-four Amphipoda species were identified: among which eight species could stand a temperature difference over 10 degrees C and eight species could tolerate the temperature gap ranged from 5 to 10 degrees C; 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 Hyperioides sibaginis; (2) temperate-warm species containing Hyperoche medusarum, Parathemisto gaudichaudi, Themisto japonica and Hyperia galba; (3) oceanic tropical species consisted of Oxycephalus clausi, Lycaea 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 Euphausia 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.
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