摘要
2008年4~5月对洛河洛阳桥段野生鲹鲦进行随机取样,共145尾(其中雌鱼44尾、雄鱼101尾),测定其体长、全长、体重等指标,采集鳞片测定其年龄,对该水体中鲹鲦的生长进行初步研究,结果如下:(1)体长与体重关系式:W=0.0195L2.8806(R2=0.8875,n=145),(2)雌鱼体长与体重关系式:W=0.0197L2.8918(R2=0.9351,n=44),雄鱼体长与体重关系式:W=0.0285L2.7133(R2=0.8414,n=101)。通过分析其生长情况,并综合考虑,建议鲹鲦最小起捕年龄为1+龄。
With the methods of random sampling, 145 specimens of Hemiculter leucisculus were collected from the Luo river during April and May, 2008, which included 44 female and 101 male. The growth parameters including the body length, total length, body weight, and age were estimated with scales. The results indicated:(1)The regression equation of body length and weight was: W = 0.0195L2.8806(R2 = 0.8875,n=145),(2) The regression equation of female's and male's body length and weight was: W = 0.0197L2.8918(R2=0.9351,n=44),and W =0.0285L2.7133(R2 = 0.8414,n=101), respectively. Based on the above results and comprehensive consideration, the recommended minimum harvesting age should not be younger than one year old.
出处
《河南水产》
2015年第3期29-31,共3页
HENAN FISHERIES
关键词
洛河
鲹鲦
年龄
生长
Luo River
Hemiculter leucisculus
Age
Growth
