渔业现代化Issue(5)：23-27,5.DOI:10.3969/j.issn.1007-9580.2013.05.005
养殖密度与日投饵量对循环水养殖系统中 CO2积累的影响
Influences of stocking densities and dai ly feedings on the accumulation of CO2 in recirculating aquaculture system
摘要
Abstract
Based on the investigations of stocking densities , daily feedings and concentrations of carbon dioxide in 15 sets of Atlantic salmon recirculating aquaculture systems , this research analyzed the influences of stocking densities and daily feedings on the accumulation of carbon dioxide .And then chose two systems which were under the conditions of different stocking densities , and compared the concentrations of carbon dioxide within each water-treatment unit in two systems in order to investigate its dynamic variation . Through correlation analysis , the results showed that the concentration of carbon dioxide increased along with the increasing stocking density , and there was a linear correlation between them ( R2 =0.747 ).Linear correlation was between daily feedings and concentration of carbon dioxide (R2 =0.574 2).When the feeding rate was 1 .3%, the larger amount of daily feedings did not lead to the corresponding accumulation of carbon dioxide due to the existence of residual feeds .The concentration of carbon dioxide within each water-treatment unit in high-density system was higher than it in low-density system .Thus, the production process should focus on the optimization of carbon dioxide removal equipments .关键词
大西洋鲑鱼/循环水养殖系统/养殖密度/日投饵量/CO2 积累Key words
Atlantic salmon salmo salar/recirculating aquaculture systems ( RAS )/stocking density/daily feedings/accumulation of carbon dioxide/correlation analysis分类
农业科技引用本文复制引用
任香,刘鹰,王顺奎,于凯松,田会芹..养殖密度与日投饵量对循环水养殖系统中 CO2积累的影响[J].渔业现代化,2013,(5):23-27,5.基金项目
公益性行业（农业）科研专项经费项目（201003024），国家科技支撑计划课题 （）
