中国水产科学2011，Vol.18Issue(2)：427-436,10.DOI:10.3724/SP.J.1118.2011.00427
北部湾鱼类多样性及优势种的时空变化
Spatio-temporal variability of fish diversity and dominant species in the Beibu Gulf
摘要
Abstract
Based on data collected by quarterly otter trawl surveys in the Beibu Gulf in 2007, the species composition, diversity and dominant species of fishes were analyzed. A total number of 323 fish species belonging to 101 families and 18 orders were collected. The dominant species were Acropoma japonicum, Leiognathus bindus, Trachurus japonicus, Parargyrops edita and Argyrosomus macrocephalus. Data analysis shows an apparent succession of the dominant species with an overall trend of the k-selection species (such as Lutjanus sanguineus and Carcharhinus menisorrah) being replaced by r-selection species (such as Acropoma japonicum,Leiognathus, and Apogonichthys). The abundances of long-lived, large-size, and high trophic level fishes decrease,while those of the short-lived, small-size, and low trophic level increase. The Shannon-Wiener diversity index (H')in the northern common fishing zone (3.60) was the highest, followed by that of the northeast Beibu Gulf (3.58),and the lowest (2.35) appeared in southern common fishing zone.. The seasonal variation of the diversity index ranged from 2.96 to 3.77 with an average of 3.31. The diversity index was lower in 2007 than that in 1992-1993,but higher than that in 1998-1999. This indicates that fishing intensity has alleviated in the recent years and has resulted in recovery of the fishery resources. [Journal of Fishery Sciences of China, 2011, 18(2)∶427-436]关键词
鱼类多样性/优势种/时空变化/北部湾分类
农业科技引用本文复制引用
王雪辉,邱永松,杜飞雁,林昭进,孙典荣,黄硕琳..北部湾鱼类多样性及优势种的时空变化[J].中国水产科学,2011,18(2):427-436,10.基金项目
农业部近海渔业资源调查项目(070404) （070404）
中央级公益性科研院所基本科研业务费专项资金(中国水产科学研究院南海水产研究所)项目(2007TS08 （中国水产科学研究院南海水产研究所）
2009TS08 （）
2010YD10) （）
我国近海海洋综合调查与评价专项(908-01-ST09) （908-01-ST09）
广东省海洋渔业资源综合评价项目(GD908-02-05). （GD908-02-05）
