...
首页> 外文期刊>aquaculture research >Effects of ammonia accumulation on metabolic rates and growth of European eel,Anguilla anguillaL., in relation to warmwater aquaculture
【24h】

Effects of ammonia accumulation on metabolic rates and growth of European eel,Anguilla anguillaL., in relation to warmwater aquaculture

机译:Effects of ammonia accumulation on metabolic rates and growth of European eel,Anguilla anguillaL., in relation to warmwater aquaculture

获取原文
   

获取外文期刊封面封底 >>

       

摘要

Abstract.Laboratory experiments on fingerling eels,Anguilla anguillaL., were carried out at high density (50gl1) in fresh and sea water (30 salinity) at 25°C. The effects of reduced water exchange rates, leading to excretory ammonia accumulation, on feeding, assimilation, oxygen consumption, ambient pH and nitrogen excretion were studied. Estimates of growth rates were made. High ambient ammonia concentrations caused large and prolonged increases in post‐feeding oxygen consumption, energy wastage and growth suppression. The main causes are suggested to be hyperventilation and neural hyperexcitability due to increases in blood unionized ammonia. The data obtained are used to predict minimum water exchange rates needed to prevent ammonia‐induced growth suppression and to meet peak post‐feeding oxygen d

著录项

  • 来源
    《aquaculture research》 |1989年第1期|111-117|共页
  • 作者

    B. KNIGHTS;

  • 作者单位
  • 收录信息
  • 原文格式 PDF
  • 正文语种 英语
  • 中图分类
  • 关键词

获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号