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Fishery Modernization
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人工养殖环境下中华鲟野生幼鲟的生长特征
作 者：
吴建辉;刘健;陈锦辉
单 位：
上海市长江口中华鲟自然保护区管理处
关键词：
野生中华鲟;人工养殖环境;崇明东滩;异速生长;肥满度
摘 要：
暂养2006年5月渔民在崇明东滩误捕受伤的中华鲟野生幼鲟,分析研究了其6—8月的生长特点。结果显示,抢救存活的中华鲟幼鲟在人工环境下,体长和体重分别从(15.40±0.64)cm和(26.00±1.34)g增加到(29.20±0.75)cm和(108.00±3.87)g,日均增长1.54 mm,日平均增重0.90 g。拟合中华鲟幼鲟体长与体重的关系为:W=0.121 5 L2.031 3(R2=0.945 7),其中b小于3,为异速生长,说明其体长增长快于体重增长。与同期野生环境下的中华鲟幼鲟比较,幂指数系数b人工=2.0313
译 名：
Growth of wild juvenile Chinese sturgeon(Acipenser sinensis) farmed in the artificial environment
作 者：
WU Jian-hui,LIU Jian,CHEN Jin-hui(Superintendency Department of Shanghai Yangize Estuarine Nature Reserve for Chinese Sturgeon,Shanghai 200092,China)
关键词：
Acipenser sinensis;wild;artificial environment;Dongtan of Chongming island;isometric growth;relative fatness
摘 要：
The wild juvenile Chinese sturgeon(Acipenser sinensis) catched in the Dongtan of Chongming island by the fisherman on May,2006,was bred in the artificial environment from June to August.This paper investigated its growth feature in the artificial environment.The result of the study is that juveniles' body length increased from(15.40±0.64) cm to(29.20±0.75) cm among three months,1.54 mm in daily length increased,and its body weight increased from(26.00±1.34) g to(108.00±3.87) g among three months,0.90 g in daily weight increased.The relationship between BL and BW of juvenile Acipenser sinensis was W = 0.121 5 L2.031 3(R2=0.945 7)(b<3),that is to say the growth of length was faster than of weight.And comparing the growth of wild juvenile Acipenser sinensis in the artificial environment and in the wild environment,the result is that juvenile Acipenser sinensis grow in the wild is faster than its grow in the artificial environment.The results may infer that the growth differences may be caused by injured,not fit for environment and food when juvenile Acipenser sinensis is bred in the artificial environment.
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