黑鲪的生长和生态转换效率及其主要影响因素  

Growth and ecological conversion efficiency of black snapper and their main affecting factors.

作　　者：孙耀[1] 张波[1] 郭学武[1] 王俊[1] 唐启升[1] 

机构地区：[1]中国水产科学研究院黄海水产研究所,青岛266071

出　　处：《应用生态学报》1999年第5期627-629,共3页Chinese Journal of Applied Ecology

基　　金：国家自然科学基金重大资助项目

摘　　要：采用室内流水模拟实验法测定了黑鲪的生长和生态转换效率，及其温度、摄食水平、体重和饵料生物种类的影响．黑鲪的特定生长率随摄食水平增大而减速增长；而特定生长率随温度升高或生态转换效率随温度和摄食水平增大均呈倒Ｕ 型变化趋势； 实验条件下的最大和最佳生长温度分别为１６ ．３ ℃和１５ ．８ ℃，维持摄食量和最佳摄食量分别为黑鱼君 体重的０ ．７９ ％ 和４ ．１０ ％ ．黑鱼君的特定生长率和生态转换效率却随体重增长均呈减速降低趋势．摄食小型鱼类饵料，有利于加速黑鱼君生长速度。Running water simulating experiment shows that specific growth rate (SGR) of black snapper ( Sabastodes fuscescens ) increased deceleratedly with increasing ration, and after increasing to a peak value,the SGR or ecological conversion efficiency (Eg) gradually decreased with increasing temperature and ration.Under experimental condition,the maximal and optimal growth temperature was 16.3℃ and 15.8℃,and the maintenance and optimal ration was 0.79% and 4.10 % of black snapper's weight,respectively.Both SGR and Eg decreased with the increment of body weights.Feeding on small sized fish was beneficial to the growth of black snapper,but did not significantly affect its ecological conversion efficiency.

关 键 词：生长 生态转换效率 影响因素 黑JUN 

分 类 号：Q959.408[生物学—动物学]