河南农业科学2018，Vol.47Issue(1)：126-133,8.DOI:10.15933/j.cnki.1004-3268.2018.01.023
混养鲮对凡纳滨对虾养殖池塘浮游生物群落结构的影响
Effects of Ployculture with Cirrhinus molitorella on Plankton Community in Intensive Shrimp (Litopenaeus vannamei) Farming Pond
摘要
Abstract
To study the effects of polyculture on plankton community structure in intensive shrimp(Litopenaeus vannamei) farming pond,our study investigated plankton community composition,water quality indicators and growth indicators in two shrimp farming ponds(only shrimp in early stage,two months later adding Cirrhinus molitorella to the farming ponds).The results showed that the concentrations of total nitrogen,ammonia nitrogen,nitrate and nitrite in the polyculture ponds were significantly lower than those in the monoculture ponds(P ＜ 0.05),but the phosphate content was significantly higher(P ＜ 0.05).The shrimp yields of the polyculture ponds were higher than those in the monoculture ponds.A total of 6 phylum and 46 species of phytoplankton were detected before polyculture,and a total of 6 phylum and 44 species after polyculture.Density and biomass of phytoplankton before and after polyculture were 167.32 × 106 cells/L,7.84 mg/L and 53.69 × 106 cells/L,4.24 mg/L,respectively.A total of 4 phylum and 23 species of zooplankton were detected before polyculture,and a total of 4 phylum and 17 species were detected after polyculture.Density and biomass of zooplankton before and after polyculture were 3 014.6 ind./L,3.981 mg/L and 1 201.65 ind./L,0.968 mg/L,respectively.The diversity index of phytoplankton increased,but the diversity index of zooplankton decreased in polyculture ponds.The results indicated that the concentrations of the total nitrogen,ammonia nitrogen and the biomass of plankton were reduced,the phytoplankton diversity was improved,the balance of microalgae was promoted,which helped to improve the yield of shrimp.关键词
混养/凡纳滨对虾/鲮/浮游植物/浮游动物Key words
Ployculture/Litopenaeus vannamei/Cirrhinus molitorella/Phytoplankton/Zooplankton分类
农业科技引用本文复制引用
李志斐,李家磊,王金林,谢骏,余德光,王广军..混养鲮对凡纳滨对虾养殖池塘浮游生物群落结构的影响[J].河南农业科学,2018,47(1):126-133,8.基金项目
广东省渔港建设和渔业发展专项技术推广项目(B201601-03) （B201601-03）
