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扼要介绍了老江河故道四大家鱼天然资源库的结构 ,并根据老江河故道水域生态系统的结构和功能特点 ,提出了四大家鱼的放养量应在重视种质质量的基础上 ,合理调控其放养结构和密度 ,此外文中还就保护和合理利用长江四大家鱼种质资源的有效途径以及维持老江河四大家鱼天然资源库健康运行的关键进行了分析探讨。
In this paper, the structure of natural resources pool of four major domestic fish in Laojianghe river course is briefly introduced. According to the structure and function of the ecosystem of the old river in Laojianghe river, the stocking quantity of four big fish should be based on the quality of germplasm, Stocking structure and density. In addition, the paper also analyzes and discusses the effective ways to protect and rationally utilize the four major domestic fish germplasm resources and the key to maintain the healthy operation of the four major domestic fish natural resource bases.