文章基本信息

标题：Size specificity of predation by Japanese medaka Oryzias latipes on Daphnia pulex
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作者：Hiroyuki Mano ; Yoshinari Tanaka
期刊名称：Journal of Freshwater Ecology
印刷版ISSN：0270-5060
电子版ISSN：2156-6941
出版年度：2012
卷号：27
期号：2
页码：309-313
DOI：10.1080/02705060.2012.659222
出版社：Taylor & Francis
摘要：We compared predation by medaka, Oryzias latipes, on four age-classes of Daphnia pulex to examine the relationship between predation rate and prey body size. The number of individuals eaten by a medaka fish differed significantly among four size classes of D. pulex showing a humped relationship with increasing age classes. We found that the predation by medaka depended on prey body size and we discuss how size-specific predation by medaka can influence cladoceran populations.
关键词：gape-limited predation; Oryzias latipes ; planktivorous fish; prey size preference; zooplankton