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Zoological Research
Kunming Institute of Zoology, Chinese Academy of Sciences
ISSN: 2095-8137
Vol. 31, No. 1, 2010, pp. 99−107
Bioline Code: zr10015
Full paper language: Chinese
Document type: Research Article
Document available free of charge

Zoological Research, Vol. 31, No. 1, 2010, pp. 99−107

 en Analysis on Community Structure of Zooplankton in Zhoushan Fishing Ground and Its Adjacent Area in Summer
Chen, Xiao-Qing; Chen, Bin; Huang, Bei; Wang, Jie-Yu; Zheng, Ji; Ning, Ping & Yu, Cun-Gen

Abstract

Based on the data acquired within the Zhoushan fishing ground and its adjacent area (29°30′ −31°30′ N, 121°30′ −124°30′ E), species composition, abundance, and species diversity of zooplankton were sampled by plankton net (50 cm mouth-diameter, 145 cm net length, 0.505 mm mesh-aperture) during August 2006. The results identified 93 species (exclude Larvae) from the samples, among which Copepods were the most diverse with 50 species. According to the standard of IRI (the species with IRI above 0.02 were regarded as dominant species in this paper), there were 12 dominant species: Euchaeta concinna check for this species in other resources , Dolioletta gegenbauri check for this species in other resources , Sagitta enflata check for this species in other resources , Sagitta bedoti check for this species in other resources , Calanus sinicus check for this species in other resources , Undinula vulgaris check for this species in other resources , Canthocalanus paupe check for this species in other resources , Macruran larvae check for this species in other resources , Diphyes chamissoni check for this species in other resources , Centropages dorsispinatus check for this species in other resources , Evadne tergestina check for this species in other resources , Acartia pacifica check for this species in other resources . The stations of high abundance were mainly in the southern part and oceanic sea, and low in the northern and near shore waters. Zooplankton in the Zhoushan fishing ground and its adjacent area exhibited high in evenness (0.70), high species number and high diversity indices (4.98). By hierarchical cluster analysis and non-metric multidimensional scaling (MDS) assisted analyzing, zooplankton in Zhoushan fishing ground and its adjacent area could be formed into three assemblages joining at a distance of 17.13%. The biota-environment matching (BIOENV) analysis showed that the abundance of zooplankton was correlated closely not only to salinity, nitrate, silicate, but also to the Cd and Pb.

Keywords
Zooplankton; Community structure; Cluster analysis; Zhoushan fishing ground and its adjacent area; Summer

 
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