海洋科学2017，Vol.41Issue(11)：8-14,7.DOI:10.11759/hykx20170716001
背角无齿蚌(Anodonta woodiana)对池塘底泥释放营养盐的净化效果
Purification capacity of Anodonta woodiana on nutrients re-leased from pond sediment
摘要
Abstract
Microcosm experiments were conducted to determinate the purification capacity of freshwater mussel Anodonta woodiana on nutrients released from pond sediment,and to study the effect of mussel systems by differ-ent density and treatment time. No significant effect was observed on pH, DO, and total solid solution. Significantly reduced levels were found on turbidity and Chl-a (P < 0.05), and the maximum removal efficiencies for them were 79.2% and 83.4%,respectively.The purifying effect of A.woodiana on nutrients was significantly affected by cul-ture density and treatment time (P < 0.05). The total nitrogen, NO3–-N, and NO2–-N showed increased levels. In contrast, the levels of NH4+-N, TP, and PO43– were significantly decreased (P < 0.05). The maximum removal effi-ciencies for NH4+-N, TP, and PO43– were 90.9%, 55.6%, and 52.9% respectively. Furthermore, analysis of response optimization showed that the removal efficiencies for TP and PO43– could possibly be elevated to 68.9% and 58.1% respectively, if the mussel systems are assigned at density-time of 27 ind./m3-22.63 d and 25 ind./m3-23.69 d. The present study suggests that A. woodiana can be effectively utilized in a purification approach for sediment eutro-phication.关键词
背角无齿蚌/底泥/营养盐/净化Key words
Anodonta woodiana/sediment/nutrients/purification分类
农业科技引用本文复制引用
陈修报,刘洪波,苏彦平,戈贤平,杨健..背角无齿蚌(Anodonta woodiana)对池塘底泥释放营养盐的净化效果[J].海洋科学,2017,41(11):8-14,7.基金项目
现代农业产业技术体系大宗淡水鱼产业技术体系专项(CARS-46) （CARS-46）
江苏省自然科学基金(BK20161144) （BK20161144）
国家自然科学基金项目(31502166).The Modern Agriculture Industrial Technology System spe-cial project–the National Technology System for Conventional Freshwa-ter Fish Industries,No.CARS-46 （31502166）
Natural Science Foundation of Jiangsu Province,China,No.BK20161144 （）
National Natural Science Foundation of China,No.31502166. （）
