Eggers胃含物法测定赤鼻棱鳀的摄食与生态转换效率
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

Q178,Q959.4,S965.399

基金项目:


Food consumption,growth and ecological conversion efficiency of Thryssa kammalensis,determined by eggers model in laboratory
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 文章评论
    摘要:

    应用 Eggers现场胃含物法 ,以卤虫幼体为饵料和在室内流水条件下 ,研究了渤海主要上层鱼类赤鼻棱的摄食和生态转换效率等生态能量学特征。结果表明 :( 1 )赤鼻棱体重与空消化道重量的定量关系可用指数函数 W=1 .1 2 64e5.86 4· ESW加以定量描述 ,其瞬时全消化道内含物量可用公式 St=1 0 0× [SW-( ln W- 0 .1 1 90 ) /5 .8640 ]/W计算得到 ;( 2 )全消化道内含物随时间的变化趋势为 St=1 .7837e- 0 .2 136 t,瞬时排空率为 Rt=0 .2 1 36g WW/( 1 0 0 g· d) ;( 3)按 Eggers公式可求得日摄食量为 Cd=1 2 .32± 8.47g WW/( 1 0 0 g· d)或 32 .88± 1 9.5 9k J/( 1 0 0 g· d) ;( 4 )从赤鼻棱的平均日生长量实测值 ( Gd=0 .64g WW/( 1 0 0 g·d)或 2 .73k J/( 1 0 0 g· d) ) ,可求得其生态转换效率 Eg=5 .2 0 % WW或 8.30 % k J。

    Abstract:

    Rednose anchovy, Thryssa kammalensis (Bleeker), is a small\|size marine pelagic fish species, feeding mainly on zooplankton. Due to the decline of traditional economic fish resources, the fish species has become an important fishery resources in the offshore area in the middle and north part of Yellow Sea in recent years. Studies on its ecological energetics could provide basic data for quantifying dynamic process of food web and establishing corresponding nutrition dynamic model for the started researc...

    参考文献
    相似文献
    引证文献
引用本文

孙耀,刘勇,张波,唐启升. Eggers胃含物法测定赤鼻棱鳀的摄食与生态转换效率.生态学报,2003,23(6):1216~1221

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数: