CAJ | 학술논문

在调查了15套大西洋鲑循环水养殖生产系统的基础上，研究了养殖密度、日投饵量对二氧化碳（ CO2）积累的影响；并选择了养殖密度不同的2套系统，通过比较各水处理单元内的CO2浓度，分析了CO2在系统各单元的动态变化规律。通过相关性分析发现，养殖池中CO2浓度随养殖密度增大而呈上升趋势，两者之间满足线性相关关系（R2＝0．747）；系统日投饵量与养殖池中CO2浓度呈线性相关（R2＝0．5742），且当日投饵率为1．3％时，由于残饵的存在，较大的日投饲量并没有导致相应的CO2积累；同时，密度较高系统各水处理单元内的CO2浓度均比密度较低系统的同等单元高。因此，循环水养殖系统设计过程中应注重CO2脱除设施的设计，以减少CO2积累所带来的潜在胁迫。
재조사료15투대서양해순배수양식생산계통적기출상，연구료양식밀도、일투이량대이양화탄（ CO2）적루적영향；병선택료양식밀도불동적2투계통，통과비교각수처리단원내적CO2농도，분석료CO2재계통각단원적동태변화규률。통과상관성분석발현，양식지중CO2농도수양식밀도증대이정상승추세，량자지간만족선성상관관계（R2＝0．747）；계통일투이량여양식지중CO2농도정선성상관（R2＝0．5742），차당일투이솔위1．3％시，유우잔이적존재，교대적일투사량병몰유도치상응적CO2적루；동시，밀도교고계통각수처리단원내적CO2농도균비밀도교저계통적동등단원고。인차，순배수양식계통설계과정중응주중CO2탈제설시적설계，이감소CO2적루소대래적잠재협박。
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 .