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应用生态学报 ›› 1999, Vol. 10 ›› Issue (5): 627-629.

• 研究论文 • 上一篇    下一篇

黑鲪的生长和生态转换效率及其主要影响因素

孙耀, 张波, 郭学武, 王俊, 唐启升   

  1. 中国水产科学研究院黄海水产研究所, 青岛266071
  • 收稿日期:1998-12-08 修回日期:1999-03-26 出版日期:1999-09-25 发布日期:1999-09-25
  • 通讯作者: 孙耀,男,42岁,副研究员,从事海洋生态及其环境方面的研究,在国内外相关刊物发表论文60余篇.
  • 基金资助:

    国家自然科学基金重大资助项目(497901001).

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

Sun Yao, Zhang Bo, Guo Xuewu, Wang Jun, Tang Qisheng   

  1. Yellow Sea Fisheries Research Institute, Chinese Academy of Fisheries, Qingdao 266071
  • Received:1998-12-08 Revised:1999-03-26 Online:1999-09-25 Published:1999-09-25

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,但对其生态转换效率却无显着性影响.

关键词: 生长, 生态转换效率, 影响因素, 黑鲪

Abstract: 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 SGRor 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 SGRand 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.

Key words: Growth, Ecological conversion efficiency, Affecting factors, Black snapper