南水水库鲂鱼的年龄与生长研究  

Studies on Age and Growth of Megalobrama skolkovii in the Nanshui Reservoir

作　　者：曹立文[1] 陈湘麟[2] 赵俊[2] 

机构地区：[1]韶关大学生物系,广东韶关512005 [2]华南师范大学鱼类研究室,广东广州510631

出　　处：《水产科学》2001年第3期11-14,共4页Fisheries Science

基　　金：广东省科技攻关项目!(930 40 3)

摘　　要：鲂鱼 (Megalobramaskolkovii)鳞片的年轮特征表现为疏密切割型 ,偶见副轮与生殖轮。根据实测鳞径R、体长L、体重W ,分析了鲂鱼的生长情况 ,其体重生长的拐点年龄为 5 4龄 ,5龄前后为合理的捕捞时期。Scales of the Megalobrama skolkovii were used for the age determination.Theiannual ring feature belongs to the loosoclose and cut pattern.The false ring and spawning check can be seen occasionally.According to the scale radius、body length and weight,we analyze the growth condition of the Megalobrama skolkovii ,the growth inflexion age of the body weight is 5 4 years old.The reasonable fishing period is about 5 years old.

关 键 词：鲂鱼 年龄 疏密切割型 生长 南水水库 捕捞时期 

分 类 号：S965.119[农业科学—水产养殖]