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我国小型淡水鱼类——圆尾斗鱼(Macropodus Chinensis)有良好的灭蚊能力。通过研究,该鱼在饥饿或饱食状态下,对蚊幼虫的摄食量分别为305.6条/尾·日和206.7条/尾·日;水泥蓄水池中的放鱼密度为1尾/m~2、0.3尾/m~2和0.6尾/m~2时,对蚊幼虫的平均摄食量则为153.6条/尾·日、148.8条/尾·日和131.9条/尾·日;当鱼密度为1尾/m~2、0.75尾/m~2和0.5尾/m~2时,稻田中蚊幼虫的密度下降率分别为100%,85.3%和80.4%。同时圆尾斗鱼对蚊幼虫的摄食量与其体型大小和性别等也密切相关。
Our small-sized freshwater fish, Macropodus Chinensis, has a good anti-mosquito capability. According to the research, the feed intake of mosquito larvae under the condition of starvation or satiety was 305.6 pieces / day and 206.7 pieces / day, respectively; the density of fish in cement storage was 1 piece / m ~ The average food consumption of mosquito larvae was 153.6 / tail days, 148.8 / tail days and 131.9 / tail days at 2,0.3 tails / m 2 and 0.6 tails / m 2, respectively. The results showed that the density of the larvae in the paddy field decreased by 100%, 85.3% and 80.4%, respectively, for 1 tail / m ~ 2, 0.75 tail / m ~ 2 and 0.5 tail / m ~ 2. At the same time, tail fishes fed on mosquito larvae were also closely related to their body size and gender.