| 罗非鱼治理蓝藻水华研究 |
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| 引用本文： | 尹春华,宣劲松,吕乐,闫海.罗非鱼治理蓝藻水华研究[J].安徽农业科学,2009,37(23):11112-11114. |
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| 作者姓名： | 尹春华 宣劲松 吕乐 闫海 |
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| 作者单位： | 北京科技大学应用科学学院生物科学与技术系,北京,100083 |
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| 基金项目： | 北京市教委共建计划资助项目 |
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| 摘 要： | 目的]为有效控制蓝藻水华污染提供方法支持。方法]通过现场设置围隔研究利用罗非鱼控制蓝藻水华污染的效果。结果]投放罗非鱼后水体中蓝藻颗粒浓度在5d后下降到4．0×10^5／ml，而空白对照组（CK）蓝藻颗粒浓度基本维持在1×10^6／ml。与CK相比，投放罗非鱼组水体中亚硝酸氮下降迅速，4d后降低到0．02mg/L。罗非鱼对水体中硝酸氮和磷酸根的去除作用更为显著，分别在2d后和4d后降低到基苓检测不出。对于水体中氨氮的浓度，罗非鱼的影响则不明显。结论]高密度投放罗非鱼能显著减少水体中的蓝藻，迅速降低水体中硝酸氮、亚硝酸氮和磷的含量。
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| 关 键 词： | 蓝藻水华 罗非鱼 控制 |
Study on Controlling Cyanobacteria Bloom with Tilapia |
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| YIN Chun-hua et al.Study on Controlling Cyanobacteria Bloom with Tilapia[J].Journal of Anhui Agricultural Sciences,2009,37(23):11112-11114. |
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| Authors: | YIN Chun-hua |
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| Institution: | YIN Chun-hua et al(Department of Biological Science , Technology,College of Applied Science,University of Science , Technology Beijing,Beijing 100083) |
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| Abstract: | Objective] The purpose was to supply methodological support for controlling the pollution caused by cyanobacteria bloom effectively.Method] The effect of controlling the pollution caused by cyanobacteria bloom with tilapia was studied through setting enclosures on site.Result] After the tilapias were put into water,the concn.of cyanobacteria particles was decreased to 4.0×105 after 5 d.The concn.of cyanobacteria particles in the control group(CK) was kept above 1×106/ml basically.The concn.of nitrite nitrogen in the waterbody of the tilapia group was 0.02 mg/L after 4 d,which decreased more quick than that of CK.The concn.of nitrate nitrogen and phosphate radical in the waterbody after tilapias were putting into was decreased more significantly,which could not be detected out basically after 2 d and 4 d,respectively.The change of ammonia nitrogen concn.in the waterbody had no significant difference from that of the control group.Conclusion] Putting tilapias into waterbody at high density could reduce its cyanobacteria significantly,decrease its contents of nitrate nitrogen,nitrite nitrogen and phosphorous rapidly. |
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| Keywords: | Cyanobacterial bloom Tilapia Control |
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