水产学报2012，Vol.36Issue(4)：592-600,9.DOI:10.3724/SP.J.1231.2012.27718
南沙群岛西南部陆架海域鱼类分类的多样性
Taxonomic diversity of fish species in southwestern continental shelf of Nansha Islands
摘要
Abstract
We documented the data of fish species systematically collected in southwestern continental Shelf of Nansha Islands according to Nelson's classification system and analyzed the diversity at different taxonomic levels using inclusion index at taxonomic level (TINCLi), taxonomic diversity (△+ and (△)+), relative abundances (Rr) and the similarity index (C) at order and family levels. The results indicated that the fish species in the southwestern continental shelf of Nansha Islands belonged to 20 orders, 110 families and 206 genera, and Perciformes is the major order. Analyzed by the inclusion index at taxonomic level, the average number of (families, genera, species), (genera, species) and (species) in per order, family and genus are (5.5, 10.30, 14.85), (1.87, 2.70) and (1.44), respectirvel, higher than the case of East China Sea continent shelf, Daya Bay and Dongsha Islands at order level. The values assumed the inverse proportion with the variation of latitude which demonstrated that the taxonomic diversity of fishes at lower-latitude was lower than that at the higher-latitude. The average taxonomic distinctness △+and the variation in taxonomic distinctness ∧ + of the Daya Bay were tested in this paper by the PRIMER5.2. The average taxonomic distinctness △+ was 65.8, and the variation in taxonomic distinctness ∧+was 110.0. Compared the △+ with those of East China Sea continent shelf, Daya Bay and Dongsha Island, the genetic relationship of the composition of fish species in southwestern continental shelf of Nansha Islands was closer to East China Sea continent shelf (65.7) and farther from Dongsha Island(55.2) and Daya Bay(62.2). Based on the similarity index, at the order and family levels, the composition of fish species in southwestern continental shelf of Nansha Islands is similar to the Daya Bay.关键词
鱼类/分类阶元包含指数/相对丰富度指数/相似性指数/多样性/南沙群岛西南部陆架Key words
fish/ inclusion index at taxonomic level/ relative richness index/ similarity index/ taxonomic diversity/ southwestern continental shelf of Nansha Islands分类
农业科技引用本文复制引用
曾晓光,李娜娜,杨权,李夏,艾红,张旭丰,李永振..南沙群岛西南部陆架海域鱼类分类的多样性[J].水产学报,2012,36(4):592-600,9.基金项目
国家农业财政项目(2008-2010) （2008-2010）
国家科技基础性工作重点项目(2003DEN6N042) （2003DEN6N042）
广东省科技计划项目(2010B030800008,2005B31001005) （2010B030800008,2005B31001005）
