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PET净水栅对虾池养殖生态环境的影响研究
引用本文:裴鹏兵,杜虹,黄晓颖,许振平.PET净水栅对虾池养殖生态环境的影响研究[J].南方水产科学,2017(4):42-51.
作者姓名:裴鹏兵  杜虹  黄晓颖  许振平
作者单位:1. 汕头大学理学院生物系,广东 汕头 515063;汕头大学理学院海洋生物研究所,广东 汕头 515063;2. 汕头大学理学院生物系,广东 汕头,515063
基金项目:广东省中科院全面战略合作项目(2011A090100040),广东省海洋渔业科技与产业发展专项(A201405B06)
摘    要:以PET细丝缠绕成结而形成线性附着基质作为生物净水栅载体材料,在汕头市牛田洋养殖基地设置实验组池塘和对照组池塘(无PET净水栅),于2015年6月至12月定期采集虾池养殖水、浮游植物及对虾样品,测定各项水质指标、浮游植物多样性、对虾生长指标,分析比较PET净水栅对池塘养殖生态环境、凡纳滨对虾(Litopenaeus vannamei)生长情况的影响。结果表明,较养殖初期(6月23日),养殖末期(12月12日)实验池水体氨氮(NH4-N)、硝氮(NO3-N)、亚硝氮(NO2-N)浓度分别下降了68.25%、42.71%、83.51%。浮游植物研究结果表明,对照池和实验池浮游植物平均丰度为5.17×108个·L-1和3.62×108个·L-1,实验池的Shannon-Wiener指数和均匀度指数分别高于对照池8.70%和6.45%(P0.05)。结果表明,实验期间实验池凡纳滨对虾的平均体长和体质量分别高于对照池6.13%和16.67%(P0.01);实验池单位面积饲料用量低于对照池15.44%(P0.01)。

关 键 词:PET净水栅  凡纳滨对虾  养殖生态  水质改良

Study on effect of PET water purification grid on ecological environment of pond culture
PEI Pengbing,DU Hong,HUANG Xiaoying,XU Zhenping.Study on effect of PET water purification grid on ecological environment of pond culture[J].South China Fisheries Science,2017(4):42-51.
Authors:PEI Pengbing  DU Hong  HUANG Xiaoying  XU Zhenping
Abstract:To study the effect of PET water purification grid on ecological environment of pond culture and Litopenaeus vannamei growth performance,we collected the pond water,phytoplankton and shrimp samples in Niu Tian Yang Breeding Base,Shantou from June to December in 2015 to compare various water-quality indices,phytoplankton diversity and shrimp growth index.The material of PET water purification grid,which was twisted by PET filament to form a linear attachment substrate,was divided into two groups:the test group and the control group (no biological water purification grid).The results show that during the culture period,the ammonia nitrogen,nitrate nitrogen and nitrite nitrogen concentrations in pool water at late experimental period were lower than those at early period,having decreased 68.25%,42.71% and 83.51%,respectively.The phytoplankton survey results show that the average abundance of phytoplankton in the control pond and the test pond were 5.17×108 cells·L-1 and 3.62×108 cells·L-1,respectively;the Shannon-Wiener index and evenness index of the test pond were higher than those of the control pond by 8.70% and 6.45%,respectively.The shrimp culture experiment shows that the average body length and weight of L.vannamei in the test pond were significantly higher than those of the control pond by 6.13% and 16.67%,respectively(P< 0.01);per unit area of the feed amount in the test pond was significantly lower than that in the control pond by 15.44% (P< 0.01).
Keywords:PET water purification grid  Litopenaeus vannamei  breeding ecology  water improvement
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