水产学报2017，Vol.41Issue(9)：1434-1442,9.DOI:10.11964/jfc.20160610424
贝类对对虾养殖池塘沉积物中小型底栖动物的影响
Effect of bivalve on meiofauna in the shrimp culture pond
摘要
Abstract
To study the effect of bivalve on meiofauna in shrimp ponds,physical and chemical characteristics of sediment,abundance and biomass of meiofauna were analyzed both in monoculture and polyculture of shrimp (Litopenaeus vannamei) with bivalve (Tegillarca granosa).Four treatments with different stocking density of bivalve [0 ind/m2 (S),60 ind/m2 (SC1),120 ind/m2 (SC2),180 ind/m2 (SC3)] were designed,and each treatment was stocked with 17× 104 ind/hm2 of shrimp.The results showed that,with the increase of culture time,organic matter content showed an upward trend,pH value and ORP were gradually decreased;increase of bivalve stocking density is beneficial to slowing the progression of the deterioration of sediment environment.The abundance and biomass of meiofauna showed a downward trend;community structure of meiofauna was more stable with the increase of bivalve stocking density.Regression analysis showed that the ratio of ostracoda to nematodes had obviously positive correlation with the shrimp yield.A certain density ofpolyculture with bivalve was conducive to increasing the ratio of ostracoda to nematodes.A preliminary result showed that,to have a good yield,the average ratio was better to reach 6 during shrimp culture,and a single value was not less than 3.5.Therefore,shrimp polyculture with bivalve was conducive to sediment quality improvement and can increase growth of meiofauna,and higher density (80-140 ind/m2) of bivalve had a clear function of purification of the sediment.关键词
凡纳滨对虾/泥蚶/底栖动物/沉积物质量/介形类与线虫比Key words
Litopenaeus vannamei/Tegillarca granosa/sediment quality/ratio of ostracoda to nematodes分类
农业科技引用本文复制引用
申屠基康,林霞,赵亚波,徐永健..贝类对对虾养殖池塘沉积物中小型底栖动物的影响[J].水产学报,2017,41(9):1434-1442,9.基金项目
国家现代农业产业技术体系建设项目(CARS-48)National Modem Agricultural Industry Technology System Construction Project (CARS-48) （CARS-48）
