摘要
2007年4月-2007年7月对鄱阳湖的淡水螺类进行了较为广泛的定性定量采集。标本经整理，计有螺类26种，隶属7科15属。优势种为铜锈环棱螺（Bellamya aentginosa）、纹沼螺（Parafossarulus striatulus）和方格短沟蜷（Semislcospira cancellata）。平均生物量和密度分别为69．60g／m^2和110，27ind．／m^2。不同断面的Shannon—Wiener多样性指数H＇的范围在1，11—2．11；均匀度指数Jsww的范围为0，76—0．99。
From April to July 2007 ,a extensive sampling of qualitative and quantitive towards freshwater snails was carried out in Poyang Lake. By sorting,A total of 26 species belonging to 15 genera in 7 families of gastropoda were found. Dominant species are Bellamya aeruginosa ,Parafossarulus striatulus and Semisulcospira cancellata. The average biomass and density were 69.60 g/m^2 and 110.27ind./m^2. Range of Shannon - Wiener index is 1.11 - 2.11 ; range of evenness index is 0.76 - 0.99.
出处
《江西科学》
2008年第1期97-101,共5页
Jiangxi Science
关键词
鄱阳湖
淡水螺类
多样性
优势种
Poyang Lake, Freshwater snails, Diversity, Dominant species
