河蟹、克氏原螯虾、黄鳝摄食生态的研究
FEEDING ECOLOGY OF ERIOCHEIR SINENSIS,PROCAMBAEUS CLARKII AND MONOPTERUS ALBUS
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摘要: 通过疫区围网养殖河蟹、黄鳝、克氏原螯虾试验,解剖观察食性表明:河蟹、黄鳝、克氏原螯虾都可以摄食钉螺、蚊幼虫.为进一步验证它们的这一食性及其摄食量,通过模拟网栏养殖模式的数据统计表明:河蟹每天每只能摄食蚊幼虫2.4尾、钉螺4.8个;克氏原螯虾每天每只能摄食蚊幼虫17.尾、钉螺0.9个;黄鳝每天每尾摄食蚊幼虫8.1尾、钉螺0.7个;河蟹、克氏原螯虾、黄鳝摄食生态的研究为生物灭螺、灭蚊提供新的途径.Abstract: Eriocheir sinensis, Procambarus clarkia and Monopterus albus was reared in net enclosure in Malaria and Schisstisimiassis area to investigate the feeding habits. A feeding trial was also conducted in net enclosure to investigate the food consumption on Oncomlania and mosquito larvae. The results showed that the animals can consume both Oncomlania and mosquito larvae. Daily intake of each Eriocheir sinensis was 62.4ind. on mosquito larvae, 4.8ind. on Oncomlania. Daily intake of each Procambarus clarkia was 17.6 ind on mosquito larvae, 0.9 ind. on Oncomlania. Daily intake of each Monopterus albus was 8.1 ind. on mosquito larvae, 0.7 ind. on Oncomlania. It shows that these three animals could be used to control the population of Oncomlania and mosquito.
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Keywords:
- Eriocheir sinensis /
- Procambarus clarkii/i> /
- Monopterus albus /
- Feeding ecology /
- Oncomelania /
- mosquito larvae
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