水蕹菜浮床对草鱼主养池塘轮虫群落结构的影响  

EFFECT OF IPOMOEA AQUATICA FLOATING-BED ON THE ROTIFER COMMUNITY STRUCTURE IN GRASS CARP POND

作　　者：李爽[1,2,3] 谢从新[1] 何绪刚[1,2] 张敏[1] 游鑫[1,2] 董加沙 黄海平[1] 段晓姣[1] 

机构地区：[1]华中农业大学水产学院,武汉430070 [2]淡水水产健康养殖湖北省协同创新中心,武汉430070 [3]沧州市农牧局,沧州061000

出　　处：《水生生物学报》2014年第1期43-50,共8页Acta Hydrobiologica Sinica

基　　金：公益性行业(农业)科研专项经费资助(项目编号:201203083);现代农业产业技术体系建设专项资金资助(项目编号:nycytx-46)资助

摘　　要：研究了水蕹菜浮床对草鱼主养池塘轮虫群落结构的影响,共检出轮虫38种,隶属于2纲14属,其中浮床池塘出现轮虫36种,而非浮床池塘28种。浮床池塘与非浮床池塘的优势种组成基本类似,萼花臂尾轮虫(Brachionus calyciflorus)、裂足臂尾轮虫(Brachionus diversicornis)、裂痕龟纹轮虫(Anuraeopsis fissa)、暗小异尾轮虫(Trichocerca pusilla)以及长肢多肢轮虫(Polyarthra dolichoptera)为共有优势种;浮床池塘与非浮床池塘的轮虫平均密度分别为1892和2255 ind./L,差异极显著(P<0.01);浮床池塘与非浮床池塘轮虫平均生物量分别为1.535和1.405 mg/L,差异不显著(P>0.05)。结果表明,水蕹菜浮床显著促进了轮虫种类数增加,提高了轮虫多样性和均匀度,并在一定程度上减缓了轮虫小型化。We studied the effect ofIpomoea aqucaticafloating-bed on the rotifer community structure in grass carp pond from June to September in 2011. The density and biomass of rotifer, the key environmental factors in floating-bed and non-floating-bed ponds were tested. The densities of rotifer in the floating-bed pond and non-floating-bed pond were 1892 ind./L and 2255 ind./L, respectively. The densities in these two kinds of ponds were significantly different （P0.05）. During the experiment, 38 species belonging to 7 families, 14 genera was detected in rotifers. Thirty-six species were detected in the floating-bed ponds rotifers, and 28 species were detected in non-floating-bed ponds. Dominant species of the two types of ponds were essentially similar, including Brachionus calyciflorus,Brachionus diversicornis,Anuraeopsis fissa,Trichocerca Pusila andPolyarthradolichoptera. The results showed thatIpomoea aquatica floating-bed could promote the number of rotifer species significantly, improve the rotifer diversity and evenness, and inhibit the rotifers miniaturization effec-tively.

关 键 词：轮虫 水蕹菜浮床 池塘 群落结构 密度 生物量 

分 类 号：Q143.1[生物学—生态学]