Ali A
University of Florida, Central Florida Research and Education Center, Sanford 32771-9608.
J Am Mosq Control Assoc. 1990 Mar;6(1):84-8.
The food of Chironomus crassicaudatus midge larvae in Lake Monroe, central Florida, was investigated from May 1981 to April 1982. Gut contents of larvae collected monthly from 16 stations in the lake were analyzed. Quantitative samples of water collected monthly at the mud-water interface at each station were analyzed for the larval food composition in the water. The larvae fed primarily on Cyanobacteria (blue-green algae). Blue-green algae were predominant in the water as well as in the larval guts, forming 63-87% and 52-84% of the total organisms observed in the water and in the larval guts, respectively. Populations of these organisms in the water were lowest in the summer. A highly significant relationship existed between the monthly mean percent of blue-green algae in the larvae and in the water. In general, the larvae were nonselective feeders in that the organisms enumerated in the water were also found in the gut.
1981年5月至1982年4月，对佛罗里达州中部门罗湖的粗尾摇蚊幼虫的食物进行了调查。每月从该湖16个站点采集幼虫的肠道内容物进行分析。每月在每个站点的泥水界面采集定量水样，分析水中幼虫的食物组成。幼虫主要以蓝藻（蓝绿藻）为食。蓝绿藻在水中和幼虫肠道中都占主导地位，分别占水中和幼虫肠道中观察到的总生物量的63%-87%和52%-84%。这些生物在水中的数量在夏季最低。幼虫体内蓝绿藻的月平均百分比与水中蓝绿藻的月平均百分比之间存在高度显著的关系。一般来说，幼虫是非选择性摄食者，因为在水中计数的生物也存在于肠道中。
