Effect of copper on the growth of shrimps Litopenaeus vannamei : water parameters and copper budget in a recirculating system
文献类型：CNKI期刊论文
| 作者 | Cheng B(程波); Liu Y(刘鹰) ; Yang HS(杨红生); Song Y(宋怿); Li X(李贤)
|
| 发表日期 | 2014-09-15 |
| 出处 | Chinese Journal of Oceanology and Limnology
 |
| 关键词 | recirculating aquaculture system(RAS) Litopenaeus vannamei copper budget water quality pollution |
| 英文摘要 | Shrimps( Litopenaeus vannamei) were intensively cultured in a recirculating aquaculture system for 98 days to investigate effects of 0.3 mg/L Cu on its performance, Cu budget, and Cu distribution. Shrimps in Cu-treated systems had greater mean final weight(11.10 vs 10.50 g), body length(107.23 vs 106.42 mm), survival rate(67.80% vs 66.40%), and yield(6.42 vs 5.99 kg/m 3), and lower feed conversion ratio(1.20 vs 1.29) than those in control systems but the differences were not significant. Vibrio numbers remained stable(10 4 –10 6 colony forming units/mL) in the rearing tanks of both control and treated systems. Total ammonium-N, nitrite-N, nitrate-N, pH, chemical oxygen demand, 5-day carbonaceous biochemical oxygen demand, and total suspended solids were similar in controls and treatments. Dissolved Cu concentration in the treated systems decreased from 0.284 to 0.089 mg/L while in the control systems it increased from 0.006 2 to 0.018 mg/L. The main sources of Cu in the treated systems were the artificially added component(75.7% of total input), shrimp feed(21.0%), water(2.06%), and shrimp biomass(1.22%). The major outputs of Cu occurred via the mechanical filter(41.7%), water renewal(15.6%), and draining of the sediment trap(15.1%). The foam fractionator removed only 0.69% of total Cu input. Harvested shrimp biomass accounted for 11.68% of Cu input. The Cu concentration of shrimps in the Cu-treated systems(30.70 mg/kg wet weight) was significantly higher than that in control systems(22.02 mg/kg). Both were below the maximum permissible concentration(50 mg/kg) for Cu in seafood for human consumption in China. Therefore, recirculating systems can be used for commercial on-growing of Litopenaeus vannamei without loss of shrimp quality, even in water polluted by 0.30 mg/L Cu. The mechanical filter is the main route for Cu removal. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the National Key Technologies R&D Program of China(No.2011BAD13B04) ; the Knowledge Innovation Program of Chinese Academy of Sciences(No.KZCX2-EW-Q212) ; the Public Service Sectors(Agriculture)Special Project(No.201003024) ; the Earmarked Fund for Modern Agro-Industry Technology Research System ; the Shandong Program for Development of Science and Technology(No.2013GHY11514) ; the Special Scientific Research Funds for Central Non-Profit Institutes,Chinese Academy of Fishery Sciences(No.2014A09XK01) |
| 卷 | v.32期:05页:122-134 |
| 语种 | 英文; |
| 分类号 | S968.22 |
| ISSN号 | 0254-4059 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/190314]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.KeyLaboratoryofMarineEcology&EnvironmentalSciences,InstituteofOceanology,ChineseAcademyofSciences 2.ChineseAcademyofFisherySciences |
| 推荐引用方式 GB/T 7714 | Cheng B,Liu Y,Yang HS,et al. Effect of copper on the growth of shrimps Litopenaeus vannamei : water parameters and copper budget in a recirculating system. 2014. |
入库方式： OAI收割
来源：海洋研究所
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