作 者：
张凯;李志斐;谢骏;余德光;王广军;龚望宝;郁二蒙;田晶晶
关键词：
生态基;大口黑鲈;能量收支;池塘养殖系统
摘 要：
为摸清生态基养殖池塘系统的能量流动规律,以放置生态基的大口黑鲈(Micropterus salmoides)池塘为研究对象,采用原位实验方法,研究了生态基对大口黑鲈池塘养殖系统的水质及能量收支的影响。实验期间,生态基可显著降低池塘水体中氨氮、硝态氮、总氮及总磷含量(P<0.05),但对亚硝态氮、磷酸盐、底泥总氮和总磷含量无显著影响(P>0.05);饵料投入是系统能量输入的主要来源,分别占对照组和实验组总输入能的53.26%和55.02%,其次为浮游生物生产,两组分别为45.92%和44.22%;浮游生物呼吸是能量输出的主要途径,分别占对照组和实验组总输出能的60.01%和56.68%,其次为养殖生物收获,两组分别为28.78%和31.99%;生态基实验组生物净产出能、光合能转化效率、饲料能转化效率及总能量转化效率均显著高于对照组(P<0.05),而单位净产量耗饲料能和单位净产量耗总能则显著低于对照组(P<0.05)。结果表明,在大口黑鲈池塘放置生态基能改善池塘环境,有效提高系统产出量及能量利用效率。
译 名：
Effect of eco-substrates on water quality and energy budget of largemouth bass(Micropterus salmoides) aquaculture system
作 者：
ZHANG Kai;LI Zhifei;XIE Jun;YU Deguang;WANG Guangjun;GONG Wangbao;YU Ermeng;TIAN Jingjing;Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation, Ministry of Agriculture and Rural Affairs;Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences;Guangdong Ecological Remediation of Aquaculture Pollution Research Center;
单 位：
ZHANG Kai%LI Zhifei%XIE Jun%YU Deguang%WANG Guangjun%GONG Wangbao%YU Ermeng%TIAN Jingjing%Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation, Ministry of Agriculture and Rural Affairs%Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences%Guangdong Ecological Remediation of Aquaculture Pollution Research Center
关键词：
eco-substrates;;Micropterus salmoides;;energy budget;;pond culture system
摘 要：
To find out the rule of the energy flowing of aquaculture ponds with eco-substrate, we carried out an experiment(the pond with eco-substrates as the treatment group and the pond without eco-substrate as the control group) and studied the effect of eco-substrates on the environment and energy budget of largemouth bass(Micropterus salmoides) aquaculture system. The results show that the eco-substrates could reduce the ammonia nitrogen, nitrate nitrogen, total nitrogen and total phosphorus in the water significantly(P<0.05), but there was no effect on the nitrite nitrogen, soluble reactive phosphate in the water and total nitrogen, total phosphorus in the sediments(P>0.05). In the study, forage fish was the main source of input energy in both two groups, which accounted for 53.26% and 55.02% of the total input energy, respectively. The primary production of phytoplankton was also the important source of input energy, accounting for 44.22% and 45.92% of the total input energy, respectively. The major output of energy was the respiration of plankton followed by the harvest of cultured animals, accounting for 56.68%, 60.01% and 28.78%,31.99%, respectively. The treatment group had higher net biological output energy, photosynthetic conversion efficiency, feed energy conversion efficiency and total energy conversion efficiency(P<0.05), but lower feed energy consumption per unit of net yield and total energy consumption per unit of net yield(P<0.05). Therefore, the eco-substrates could improve the pond environment, increase the production and enhance the energy utilization efficiency effectively.
