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花鲈为沿海及河口的经济鱼类,亦可溯河生活于淡水。在长江口水域,花鲈属中型鱼类,其体长和体重的相关关系式为:W=0.0605L2.6346(r=0.9878),生长方程为:Lt=100.9957[1-e-0.1768(t+0.7633)],Wt=11542.26[1-e-0.1768(t+0.7633)]2.6346,体重生长拐点tr=4.7龄,拐点处体重为3281.4克。早期幼鱼以浮游动物为食,以后转变为主要以虾其次以鱼为食,成鱼则主要以鱼其次以虾为食。在长江口水域,鱼虾等饵料资源丰富,为花鲈极好的肥育场所。在该水域,花鲈的资源量应引起重视。文中,最后对其资源的保护和发展作了探讨。
Sea bass are coastal and estuarine economic fish, but also upstream can live in fresh water. In the Yangtze River estuary, the correlation coefficient between body length and body weight was: W = 0.0605L2.6346 (r = 0.9878), the growth equation was Lt = 100.9957 [1- Wt = 11542.26 [1-e-0.1768 (t + 0.7633)] 2.6346, the inflection point of body weight tr = 4.7, the inflection body weight 3281 .4 grams. Early larvae fed on zooplankton, later converted to mainly shrimp followed by fish, while adult fish mainly followed by fish for shrimp. In the Yangtze River Estuary waters, fish and other food resources rich, excellent perch for the fillet. In the waters, the perch should be taken seriously. In the article, the author finally discusses the protection and development of its resources.