首页|期刊导航|中国海洋湖沼学报（英文版）|Species composition and diversity of pelagic fishes based on a longline fishery catch in the North Pacific Ocean
中国海洋湖沼学报（英文版）2011，Vol.29Issue(2)：261-269,9.DOI:10.1007/s00343-011-0122-7
Species composition and diversity of pelagic fishes based on a longline fishery catch in the North Pacific Ocean
Species composition and diversity of pelagic fishes based on a longline fishery catch in the North Pacific Ocean
摘要
Abstract
Evaluation of spatial-temporal variability of species composition and diversity in oceanic ecosystems is not easy because it is usually difficult to obtain sufficient data quantifying such variability.In this study, we examined pelagic species diversity indicators, species richness, Shannon-Wiener index of diversity and Hurlbert's species evenness, for fish assemblages from two areas (north and south) in the North Pacific Ocean (2°-12°N, 178°E-165°W) during May-July 2008. The assemblages were based on data collected by an onboard scientific observer during a commercial longline fishing trip. The species richness and Shannon-Wiener diversity index of fish assemblages in the northern area were slightly higher than those in the southern area, although these differences were not significant (t test,P>0.05). Non-parametric multidimensional scaling and analysis of similarities indicated that there were significant differences in fish assemblages between the two areas (P<0.01).关键词
species composition/diversity/pelagic fish/longline/North Pacific OceanKey words
species composition/diversity/pelagic fish/longline/North Pacific Ocean引用本文复制引用
ZHU Jiangfeng,DAI Xiaojie,CHEN Yong..Species composition and diversity of pelagic fishes based on a longline fishery catch in the North Pacific Ocean[J].中国海洋湖沼学报（英文版）,2011,29(2):261-269,9.基金项目
Supported by the China National Fishery Observer Program,and the Shanghai Leading Academic Discipline Project (No.S30702) （No.S30702）
