| 圆尾斗鱼食物选择性的实验研究 |
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| 引用本文： | 郭先武,周洁,杨灵.圆尾斗鱼食物选择性的实验研究[J].湖泊科学,1995,7(2):173-177. |
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| 作者姓名： | 郭先武 周洁 杨灵 |
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| 作者单位： | 华中农业大学水产系 武汉430070(郭先武，周洁)，华中农业大学水产系 武汉430070北京市水利局(杨灵) |
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| 基金项目： | 世界卫生组织，世界银行资助 课题编号:880531 |
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| 摘 要： | 在实验条件下，圆尾斗鱼优摄食纹幼虫和摇蚊幼虫，对食物的选择性明显，同时表明，用数量指标，以选择指数和Ｘ＾２检验能较客观地，可靠地说明食物选择性的大小。
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| 关 键 词： | 圆尾斗鱼 食物 选择性 蚊幼虫 |
| 收稿时间： | 8/2/1993 12:00:00 AM |
| 修稿时间： | 1994/2/26 0:00:00 |
Experimental study on the food selectivity of Macropodus chinensis (bloch) |
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| Guo Xianwu,Zhou Jie and Yang Ling.Experimental study on the food selectivity of Macropodus chinensis (bloch)[J].Journal of Lake Science,1995,7(2):173-177. |
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| Authors: | Guo Xianwu Zhou Jie and Yang Ling |
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| Institution: | Huazhong Agricultural University, Wuhan 430070,Huazhong Agricultural University, Wuhan 430070 and Huazhong Agricultural University, Wuhan 430070 |
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| Abstract: | Under the experimental conditions, the test that Macropodus chinensis(Bloch) feeds selectively on Rotifera Asplanchna priodonta, Cladocera Daphnia pulex , Copepoda Mesocyclops sp. , mosquito larvae Culex sp. and chironomid larvae Chironomus tentanspabricius was carried out. The magnitude of food selectivity is measured with Ivlve's index and X2 value in number and bumass of food organisms. The results show that the selectivity order is: feeding on chironomid larvae and mosquito larvae first, then Cladocera and Copepoda, and finally Rotifera. While the number of these five species in aquria is doubled alternatively, the fish between 0. 5 and 4.15g in weight has the identical food selectivity. M. chinensis is a promising species used in controlling the mosquito larvae population because mosquito larvae are easy to be sought by fish in natural condition. To evaluate the food selectivity more objectively, the individual number of food organisms is more suitable than biomass; and Ivlve's index and chi-squared test used simultaneously are better than used separately. |
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| Keywords: | Afacropodus chinensis food selectivity culex sp |
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