【摘要】 本文研究分析了碧流河水库鲤和鲫的生长特性。用臀鳍第3根鳍条（假硬刺）作为鉴定年龄的材料优于鳞片。鳞片与之年轮比较,其吻合率:鲤4年轮组为81.8％,5年轮组为50％,6年轮组仅33.30/;鲫4年轮组为75％,5年轮组为28.6％,6年轮组下降为11.1％,7年轮组完全不一致。体长（L）与鳍条半径（R）增长呈指数关系,鲤L=0.5833R^0.8716,鲫L=1.1965R^0.6744。鲤和鲫渐近体长分别为71.47cm和30.14 cm,渐近体重为7410.2 g和815.79 g。拐点年龄鲤t=6.15龄,鲫t=5.19龄。底栖动物现存量为1.62 g/m²,鱼产潜力为8.1 kg/hm²。鉴于水库春季水位仍将呈下降趋势,为维持和提高种群数量,必须注意其苗种的人工投放。更多还原

【Abstract】 This paper deals with the growth characteristics of common carp ( Cyprinus carpio ) and crucian carp ( Carassius auratus ) in Biliuhe reservoir and an analysis for their growth was given. As a material for age determination, the third ray of anal fin (spinous soft ray) is superior to scales. Compared with the annual rings on scales, the agreements of the rays from the four, five and six years old fish were as follows; 81. 8%, 50. 0% , 33. 3% for common carp; 75. 5% ,28. 6%,11. 1% for crucian carp; annual rings of 7 -year old crucian carp were inconsistent. The relationship between body length and ray radius of common carp was expressed as L = 0. 5833.R0.8716 , those of crucian carp was expressed as L = 1. 1965.R0.6744 . The results show that the growth patterns of the two species can be described by Von Bertalanffy growth equation pretty well, the parameters in the equation for common carp were L∞ = 71. 47 cm, W∞ = 7410. 2 g, K = 0. 1565 , t0 = 0. 0997 yr, tr = 6. 15 yr; and those for crucian carp were L∞ = 30. 14 cm, W∞ = 815. 79 g, K = 0. 1974 , t0 = - 0. 3885 yr, tr = 5. 19 yr. The biomass of zoobenthos was 1. 62 g/m2, and fishery potentiality was 8. 1 kg/ha. In view of the water level of the reservoir is still tending to decline in spring, for maintainning and raising the population quantity, more attention should be paid to stock fingerlings into the reservoir.更多还原