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=0.0001L^2.8677，体长与全长的关系式为L_t=1.1736L_b+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_∞ =4 315.455 g，体重生长曲线的曲率k=0.2799，理论上体长和体重为零时的年龄t₀=-1.1869龄，体重生长拐点年龄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 net cages 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=0.0001L^2.8677, and relationship between body length and total length as L_t=1.1736L_b+3.6206. The von Bertallanffy growth curve parameters derived from the mentioned data are L_∞ ＝452.418 mm, W_∞ =4 315.455 g, k=0.2799, t₀=-1.1869 years, turning point of growth in body weight t₀=2.738 years.