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作 者:章小娟 张海生 刘小平 王双 郭爱红 ZHANG Xiaojuan;ZHANG Haisheng;LIU Xiaoping;WANG shuang;GUO Aihong(Kuancheng Manchu Autonomous County Agriculture and Rural Bureau,Kuancheng 067600,China;Qianxi County Agriculture and Rural Bureau,QianXi 064300,China;North China University of Science and Technology,Caofeidian 063200,China)
机构地区:[1]宽城满族自治县农业农村局,河北宽城067600 [2]迁西县农业农村局,河北迁西064300 [3]华北理工大学,河北曹妃甸063200
出 处:《河北渔业》2023年第11期22-27,共6页
摘 要:为了确保实现“以渔养水、以渔洁水”的绿色生态养殖,在保护生态环境的大前提下推动渔业绿色发展,对潘家口水库宽城水域进行水体富营养化评价与增养殖容量调查。结果显示,潘家口水库宽城水域滤食性鱼类和底栖动物食性鱼类总增殖容量范围为:9858.93~14793.78 t,其中,滤食性水生动物增殖容量范围为9856~14785 t,底栖动物食性鱼类增殖容量范围为2.93~8.78 t。根据鱼类生长年限和库区优势鱼种池沼公鱼的繁殖特性,结合潘家口水库宽城水域增养殖总容量,成鱼按照2 kg/尾计算,折合成鱼493万~740万尾,第一年增殖不少于50%,首次增殖鱼苗250万~370万尾,鳙∶鲢为1∶3~1∶4,投放规格0.10 kg/尾;第二年和第三年的增殖量为243万~370万尾,鳙∶鲢为1∶2~1∶3,投放规格0.10 kg/尾。后期也可以根据实际水库的水质情况调整鲢鳙的比例。In order to ensure the realization of the green ecological aquaculture of“fishery for water,fishery to clean water”,and to promote the green development of fisheries under the premise of protecting the ecological environment,the evaluation of the eutrophication of the water body and the survey of aquaculture capacity of Panjiakou Reservoir Kuancheng Waters were carried out.The results showed that the total aquaculture capacity of filter-feeding fish and benthic animal fish in Kuancheng waters of Panjiakou Reservoir ranged from 9,858.93 to 14,793.78 t.Among them,the capacity of filter-feeding aquatic animals ranged from 9,856 to 14,785 t,and that of benthic animal fish ranged from 2,93 to 8,78 t.According to the growth period of fish and the reproduction characteristics of Ikanuma males(the dominant species in the reservoir area),combined with the total capacity of Panjiakou Reservoir Kuangcheng waters,the adult fish was calculated at 2 kg/ind.,which was equivalent to 4.93 million to 7.4 million adult fish.So,the proliferation of the first year should be not less than 50%,and the first proliferation should be 2.5 million to 3.7 million fries,the ratio of bighead carp to silver carp should be 1∶3 to 1∶4,with body weight of 0.10 kg/ind.;the proliferation of the second and third year should be 2.43 million to 3.7 million,with the ratio of bighead carp to silver carp being 1∶2 to 1∶3 and body weight of 0.10 kg/ind..The ratio of silver to bighead carp can be adjusted according to the actual water quality of the reservoir in the later years.
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