生物膜净水栅搭配水生植物浮床修复草鱼混养池塘水环境的效果研究  

Effect of integrated biofilm fence and aquatic plant floating bed on repairing water environment of grass carp coculturing pond

作　　者：张建铭 黄雅贞 张家海 刘德亭 方园 刘斌 ZHANG Jian-ming;HUANG Ya-zheng;ZHANG Jia-hai;LIU De-ting;FANG Yuan;LIU Bin(Ganzhou Animal Husbandry and Fisheries Research Institute,Ganzhou,Jiangxi 341000,China;Gannan Academy of Sciences,Ganzhou,Jiangxi 341000,China)

机构地区：[1]赣州市畜牧水产研究所,江西赣州341000 [2]赣南科学院,江西赣州341000

出　　处：《海洋湖沼通报》2022年第1期75-81,共7页Transactions of Oceanology and Limnology

基　　金：江西省现代农业科研协同创新专项经费(JXXTCX2016002)。

摘　　要：采用设置生物膜净水栅搭配水生植物浮床对比实验的方法,在6口草鱼混养池塘开展水质修复效果和养殖效益的研究。结果显示,在7个月的养殖期间,试验组pH值和DO值分别高于对照组3.89%、7.89%(P>0.05),NH_(3)-N、NO_(2)^(-)-N、COD、TN、TP浓度分别显著低于对照组32.95%、29.73%、23.86%、22.59%和39.80%(P<0.05)。藻类生物多样性指数高于对照组9.51%(P>0.05),藻类密度显著低于对照组29.39%(P<0.05),蓝藻相对密度极其显著低于对照组71.38%(P<0.01),藻类生物均匀度指数显著高于对照组20.83%(P<0.05)。养殖成活率和产量分别显著高于对照组5.68%、20.39%(P<0.05),饲料系数显著低于对照组9.95%(P<0.05)。说明生物膜净水栅搭配水生植物浮床能够显著改善养殖水环境,减少病害的发生,促进增产增收,应用推广前景广阔。In order to determine the effect of integrated biofilm fence and aquatic plant floating bed on repairing the water environment of grass carp cocultured ponds,we selected 6 ponds for test and control groups,3 each.The results showed that during a 7 month trial,the pH and DO values of test group were 3.89%and 7.89%higher than those of control group(P>0.05),and the concentrations of NH_(3)-N,NO_(2)^(-)-N,COD,TN and TP were 32.95%,29.73%,23.86%,22.59%and 39.80%lower than those of control group(significant,P<0.05).The algal biodiversity index was 9.51%higher than that of the control(P>0.05),the algal density was 29.39%lower than that of the control(significant,P<0.05),and the relative density of blue-green algae was 71.38%lower than that of the control(extremely significant,P<0.01).The algal biomass uniformity index was 20.83%higher than that of the control(significant,P<0.05).The survival rate and yield of culture were 5.68%and 20.39%higher than those of the control(significant,P<0.05).The feed coefficient was 9.95%lower than that of the control(significant,P<0.05).Our findings showed that the biofilm fence and aquatic plant floating bed can significantly improve the aquaculture water environment,reduce the occurrence of diseases,increase production and income,thus have broad application prospects.

关 键 词：生物膜净水栅 水生植物浮床 混养池塘 水质修复 

分 类 号：S96[农业科学—水产养殖]