粤东近海渔场条尾鲱鲤体长与年龄关系研究

Study on the length-age relationship of Upeneus bensari in off-shore fisheries of eastern Guangdong province

本文以特殊性、一般性和季节性特殊的ｖｏｎＢｅｒｔａｌａｎｆｆｙ生长方程为模型，确立粤东近海渔场条尾鲱鲤Ｕｐｅｎｅｕｓｂｅｎｓａｒｉ（Ｔｅｍｍｉｎｃｋ＆Ｓｃｈｌｅｇｅｌ）雌雄群体各自的体长与年龄关系．在建立特殊性体长生长方程的基础上，应用似然比检验方法，考察进一步引进一般性生长参数和季节性生长参数的必要性．结果表明，雌雄群体建立一般性体长生长方程的必要性不显著，而其季节性生长特征显著，但由于雌雄群体季节性生长变动幅度过大，因此季节性生长变化显著的结论还有待进一步证实．

The respective length-age relationship of male and female UPeneus bensari (Temminck &- Schlegel) living in off-shore fisheries of eastern Guangdong province is obtained by using the special, generalized and seasonal von Bertalanffy's growth equations as mathematical models. Efforts have been made to test the necessity for introducing the generalized and seasonal growth parameters into the special length growth equation by means of likelihood ratio test. Results show that the necessity for constructing the generalized equation for male and female populations is not significant, but the characteristics of the seasonal growth of these two populations, though significant, remain to be confirmed because of the fluctuant amplitude of their seasonal growth.