【摘要】 本文根据1982年4月至1983年5月在大连湾周年生态调查中获得的资料,分析了大连湾枝角类的数量分布和季节变化。结果表明,大连湾共有4种枝角类,鸟喙尖头溞Penlia avirostris,多型大眼溞Podon Polyphemoides(Leuckart),诺氏僧帽溞Evadne nordmanni Loven,肥胖僧帽溞Evadne tergestina Claus。在数量上,以多型大眼溞占优势,其数量变动直接影响技角类的总量。本文还讨论了几种环境因素对枝角类分布的影响。更多还原

【Abstract】 Based on data of ecological survey in Dalian Bay from April 1982 to May 1983, numerical distribution and seasonal changes of cladocera in Dalian Bay are analysesed in this paper. Results show that there are four species of cladocera: Penilia avirostris, Podon polyphemoides(Leuckart), Evadne nordmanni Loven and Evadne tergdstina Glaus, of which Podon polyphemoides is the dominant species. The effects of several environmental factors on distribution of cladocera are also discussed.更多还原