文章摘要
周小玉,张根芳,刘其根,鄢灵兰,李家乐.鲢、鳙对三角帆蚌池塘藻类影响的围隔实验[J].水产学报,2011,35(5):729~737
鲢、鳙对三角帆蚌池塘藻类影响的围隔实验
Effects of Hyriopsis cumingii and Aristichthys nobilis on the enclosures phytoplankton community of Hypophthalmichthys molitrix pond
投稿时间:2010-09-26  修订日期:2011-02-08
DOI:10.3724/SP.J.1231
中文关键词: 浮游植物  三角帆蚌      生物量
英文关键词: Phytoplankton  Hyriopsis cumingii (pearl mussel)  Hypophthalmichthys molitrix (silver carp)  Aristichthys nobilis (bighead carp)  biomass
基金项目:公益性行业(农业)科研专项(200903028);上海市重点学科建设项目(Y1101)
作者单位
周小玉 上海海洋大学水产与生命学院,农业部水产种质资源与利用重点开放实验室 
张根芳 浙江金华职业技术学院 
刘其根 上海海洋大学水产与生命学院,农业部水产种质资源与利用重点开放实验室 
鄢灵兰 上海海洋大学水产与生命学院,农业部水产种质资源与利用重点开放实验室 
李家乐 上海海洋大学水产与生命学院,农业部水产种质资源与利用重点开放实验室 
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中文摘要:
      以浙江金华汤溪威旺养殖基地的三角帆蚌养殖水体为研究对象,通过围隔实验比较研究了单养鲢、鳙和三角帆蚌的池塘浮游植物密度、生物量和优势种(属)组成等的差异,以及养蚌池混养鲢鳙对水体浮游植物密度、生物量以及优势种变化的影响。结果表明,养蚌(10#)围隔的浮游植物平均密度和生物量均显著高于高密度鲢(12#)围隔(P<0.05),其蓝藻数量及生物量显著高于高密度鲢(12#)和低密度鳙(13#)围隔(P<0.05),绿藻数量则显著低于低密度鲢单养(11#)围隔(P<0.05)。在鱼蚌混养的情况下,单养蚌(10#)围隔浮游植物平均数量显著高于鲢-蚌混养(15#,16#)和鳙-蚌混养(17#,18#)围隔(P<0.05),其蓝藻数量及生物量极显著高于鲢-蚌混养(15#,16#)或鳙-蚌(17#,18#)围隔(P<0.01),其绿藻数量显著低于混养高密度鲢(16#)或低密度鳙(17#)的混养围隔(P<0.05)。研究结果充分说明,鲢、鳙和三角帆蚌三者对水体藻类组成的影响有别,三角帆蚌养殖池中适当混养鲢或鳙可以有效控制蓝藻(铜绿微囊藻)的生长,促进绿藻(四尾栅藻)的生长,并最终有利于三角帆蚌的养殖,混养鲢密度的增加有利于控制藻类生长,而鳙密度的增加促进了裸藻等中大型藻类的生长。
英文摘要:
      Through the investigation on the enclosure phytoplankton community in pearl mussel ponds,we comparatively studied the different effects of silver carp(Hypophthalmichthys molitrix),bighead carp(Aristichthys nobilis)and the pearl mussel Hyriopsis cumingii on quantity,biomass and dominant species of phytoplankton,and the effects of the two carps on the phytoplankton in mussel ponds.The results showed that the density and biomass of phytoplankton in mussel monocultured pond(10#)are significantly higher than those in high density of silver carp monocultured pond(12#)(P<0.05),the density and biomass of cyanobacteria in mussel pond is significantly higher than those in high density silver carp pond(12#)and low density bighead carp pond(13#)(P<0.05),the density of chlorophyta in mussel pond is significantly lower than that in low density silver carp pond(11#)(P<0.05).The density of phytoplankton in mussel culturing pond(10#)is significantly higher than that in low density of silver carp coculturing pond(15#,16#)and bighead carp pond(17#,18#)(P<0.05),the density and biomass of cyanobacteria in mussel pond is significantly higher than that in silver carp pond(15#,16#)and bighead carp pond(17#,18#)(P<0.01),the density of chlorophyta in mussel pond is significantly lower than that in high density silver carp pond(16#)and low density bighead carp pond(17#).The impact on phytoplankton among mussel,silver carp and bighead carp is different from each other.The introduction of bighead carp or silver carp to enclosures of H.cumingii could effectually control algae especially Cyanobacteria(Microcystic aeruginosa)and promote the growth of Chlorophyta(Scenedesmus quadricauda)and finally help pearl mussel culture.The density and biomass of phytoplankton all decreased along with the increased density of silver carp while the increased density of bighead carp promoted the growth of Euglenophyta (Euglena viridis).
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