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用矩阵描述了放养和捕捞的一般数量关系 ,根据这个关系 ,用过去数年的放养数据和渔获物的年龄组成数据 ,可以求得回捕率 ;将 1 998年秋和 1 999年春测定的该水库放养鲢、鳙的回捕率代入该矩阵中 ,得出其放养—捕捞的数量方程。该方程可以作为指导水库制订放养和捕捞计划的依据。
Using matrices to describe the general relationship between stocking and fishing, according to this relationship, the stock capture data from the past few years and the age composition data of catch can be used to obtain the recovery rate; The stocking rate of silver carp and bighead carp in reservoir was substituted into the matrix, and the quantity equation of stocking-fishing was obtained. This equation can be used as a basis for guiding stockpiling and fishing programs in reservoirs.