海湾网箱养殖斜带髭鲷的生长特性

Study on the growth performance of skewband grunt Hapalogenys nitens in sea gulf net cage

摘要: 2002~2005 年期间在广东省饶平柘林湾海上网箱采集斜带髭鲷Hapalogenys nitens标本共515尾，以鳞片的年轮作为年龄鉴定依据，对其进行生长特性进行研究。结果表明，1~5龄鱼体长与鳞长的关系式为L=175.17r+227.22，体长与体重关系式为W=0.0001L2.8677, 体长与全长的关系式为 Lt= 1.1736 Lb+3.6206, 应用von Bertalanffy生长曲线拟合生长规律, 求得斜带髭鲷的各项生长参数为：渐进体长L＝452.418 mm，W=4315.455 g，生长曲线的曲率k=0.2799，理论上体长和体重为零时的年龄t0=－1.1869龄，生长拐点年龄t0= 2.738龄。

Abstract: The growth performance of skewband grunt Hapalogenys nitens was studied on the base of 515 specimens from 1＋years old to 5＋years old colleted from netcages located in Zhelinwan Gulf in Raoping County, Guangdong Province. Biostatistics analysis showed that the relationship between body length and scale radius may be expressed as L=175.17r+227.22，relationship between body length and body weight as W=0.0001L2.8677，and relationship between body length and total length as Lt= 1.1736 Lb+3.6206. The von Bertallanffy growth curve parameters derived from the mentioned data are L＝452.418mm, W=4315.455g, k=0.2799，t0=－1.1869 years, turning point of growth in body weight t0= 2.738 years.