克氏原螯虾种群生长模型及生态参数的研究

A Study on Growth Model and Ecological Parameters of Cambarusclakii

通过观察与测量 333尾不同生活时期的克氏原螯虾 (Cambarusclakii) ,并建立了其生长模型 .雌体W =0 0 1 99L3 2 4 42 ;雄体W =0 0 1 55L3 4 0 6 5,推算出一些有意义的生态学参数 ,雌性性成熟年龄为 0 8年 ,生长速度最大时的年龄为 3 0年 ,生态寿命为 5 3年 ;雄性性成熟年龄为 0 7年 ,生长速度最大的年龄为 2 5年 ,生态寿命为 4

The growth model of Cambarusclakii was obtained by the means of observing and measuring the 333 crayfish which is in different period.The growth equation for female is W=0 019?9L 3 244?2 , and that for male is W=0 015?5L 3 406?5 .The female's sexual maturity age is 0 8?year,yet the male's is 0 7?year;the female's maximum speed of growth is at the age of 3.0 years,yet the male's is at the age of 2 5?years;the female's ecological longivity is 5 3?years yet the male's is 4 3?years.