太湖大型底栖动物群落结构及多样性
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蔡永久, 龚志军, 秦伯强
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Community structure and diversity of macrozoobenthos in Lake Taihu, a large shallow eutrophic lake in China
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Yongjiu Cai, Zhijun Gong, Boqiang Qin
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表2 各聚类组大型底栖动物优势种平均密度(ind./m2)及其对组内相似性贡献百分比
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Table 2 Mean density (ind./m2) of dominant species for each affinity group and the contribution (%) to with-in group similarity
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| 物种 Species | Group A | Group B | Group C | | 寡毛类 Oligochaeta | | | | | 霍甫水丝蚓 Limnodrilus hoffmeisteri | 7,883(50.29%) | 242(10.08%) | 115(18.46%) | | 中华河蚓 Rhyacodrilus sinicus | 621(14.6%) | | | | 苏氏尾鳃蚓 Branchiura sowerbyi | 51(4.97%) | 23(5.69%) | 44(10.12%) | | 指鳃尾盘虫 Dero digitata | 211(5.79%) | | | | 软体动物 Mollusca | | | | | 河蚬 Corbicula fluminea | | 386(30.34%) | 36(6.8%) | | 铜锈环棱螺 Bellamya aeruginosa | | | 102(19.73%) | | 方格短沟蜷 Semisulcospira cancellata | | | 19(5.43%) | | 光滑狭口螺 Stenothyra glabra | | | 11(3.56%) | | 长角涵螺 Alocinma longicornis | | | 50(14.13%) | | 纹沼螺 Parafossarulus striatulus | | | 31(6.57%) | | 摇蚊幼虫 Chironomidae | | | | | 中国长足摇蚊 Tanypus chinensis | 302(5.31%) | | | | 半折摇蚊 Chironomus semireductus | 46(3.04%) | | | | 其他 Others | | | | | 钩虾属一种 Gammarus sp. | 357(7.22%) | 195(16.39%) | | | 多毛类一种 Polychaeta sp.1 | | 200(17.80%) | | | 合计 Total | 9,471(91.20%) | 1,046(80.30%) | 408(84.80%) |
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