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对高关水库96尾鲢鱼[Hypophthalmichthys molitrix]和160尾鳙鱼[Aristichthysnobilis]作常规的生物学测定和统计运算后得出,鲢、鳙鱼体长与鳞长呈直线相关、体长与体重星幂函致相关。鲢、鳙鱼的生长规律符合Von.Bertalarffy生长方程。计算得鲢、鳙鱼的生长参数为:L_∞=80.884厘米、107.927厘米,W_∞=7332.75克、16334.598克,K=0.322、0.219,t_0=O.214年、0.308年,生长拐点年龄为3.627年、5.326年,拐点体重为2173.89克、4842.28克。高关水库以鲢鱼的拐点体重(2173.89克)作为捕捞规格、年捕捞强度为0.80、放养鱼种的规格在5寸以上,则鱼产量可望达到30万公斤。
The biological and statistical calculations of 96 silver carp (Hypophthalmichthys molitrix) and 160 (Aristichthys nobilis) in Gaoguan Reservoir showed that body length and weight of silver carp and bighead carp were linearly correlated with body length and body weight Star power letter related. The growth of silver carp and bighead carp accorded with Von.Bertalarffy growth equation. The growth parameters of silver carp and bighead carp were calculated as follows: L_∞ = 80.884 cm, 107.927 cm, W_∞ = 7332.75 g, 16334.598 g, K = 0.322, 0.219, t_0 = Year, 5.326 years, inflection point weight of 2173.89 grams, 4842.28 grams. Gao Guan Reservoir with the turning point of silver carp body weight (2173.89 grams) as the fishing specifications, the annual fishing intensity of 0.80, stocking specifications of more than 5 inches, the fish production is expected to reach 300,000 kg.