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  • 标题:An in Situ Estimate of Food Consumption by Icefish in Lake Chaohu, China
  • 本地全文:下载
  • 作者:Longgen Guo ; Ping Xie
  • 期刊名称:Journal of Freshwater Ecology
  • 印刷版ISSN:0270-5060
  • 电子版ISSN:2156-6941
  • 出版年度:2005
  • 卷号:20
  • 期号:4
  • 页码:671-676
  • DOI:10.1080/02705060.2005.9664790
  • 出版社:Taylor & Francis
  • 摘要:The icefish (Neosalanx taihuensis) of Lake Chaohu, China, foraged almost exclusively on crustacean zooplankton in both spring and summer. The icefish showed diurnal feeding periodicity, with peak feeding in the morning. No food was observed in icefish guts collected at night. Our results indicate that that the icefish was a particulate feeder and light intensity greatly affected its foraging on zooplankton. Daily consumption of zooplankton by icefish varied significantly both diurnally and among seasons, which ranged from 0.22 to 2.23 g (wet weight) per 100 g wet fish weight at temperatures between 16.3 OC (spring) and 28.8 °C (summer).
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