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本文对1994-1996年在黄河宁夏永宁段采集的1089尾鲫鱼进行了年龄与生长方面的生态学研究。宁夏黄河鲫鱼鳞片的年轮形成时间为5月上旬至7月中旬,通过鳞片鉴定年龄,确定种群由1-6龄鱼组成。文章分析了体长、体重分布,年龄结构及体长、体重实测生长,并得到体长与体重的关系式为。用VonBertalanffy生长万程拟合,得、体重生长拐点年龄tr=6.90龄。文章还对宁夏黄河鲫鱼的生长特性同其它水域鲫鱼生长特性作了比较分析,并对保护和合理利用野生鲫鱼资源提出了一些建议。
In this paper, the ecological research on the age and growth of 1089 carassias collected from 1994 to 1996 in Yongning, Ningxia, Yellow River was conducted. The growth ring of Yellow River crucian carp scales in Ningxia was from early May to mid July, and the age of scales was used to confirm the population consisted of 1-6-year-old fish. The article analyzes the body length, body weight distribution, age structure and body length, body weight measured growth, and body length and body weight obtained. With VonBertalanffy growth program fitting, too, weight growth inflection age tr = 6.90 years. The article also compared the growth characteristics of the Yellow River crucian carp and the growth characteristics of the crucian carp in other waters, and put forward some suggestions to protect and rationally utilize the wild crucian carp resources.