对塘堰鲢、鳙、草鱼的体形系数研究得出:鲢、鳙、草鱼的体长系数K_1分别为0.166,0.168和0.145;肥瘦系数K_2分别为6.36,6.40和5.50。直接采用体重公式α=K_2·G~(1/3)的计算结果来设计网具的网目大小。对所研究的三层拖刺网和革新地曳网经1984、1985两年的8个不同塘堰面积,近100网次的试验,证明它们是塘堰轮捕轮放的新型网具。 The body shape coefficients of silver carp, bighead carp and grass carp in ponds were studied. The body length coefficients of silver carp, bighead carp and grass carp were 0.166, 0.168 and 0.145, respectively, and the K 2 values ​​of them were 6.36, 6.40 and 5.50, respectively. Directly use the body weight formula α = K_2 · G ~ (1/3) of the calculation results to design the mesh size of the mesh. The three layers of barbed wire netting and the innovative wiretapping net tested by eight different pond areas and nearly 100 net tests in 1984 and 1985 proved that they are the new type of net tools for the pond weir.