[摘要] 采用室内受控生态系统的实验方法，研究了富营养化水体中食藻虫对藻类生长的控制作用。通过食藻虫种群的壮大来遏制浮游植物的发展，从而降低藻类生物量，提高水的透明度，最后达到改善水质的目的。并逐步连接恢复从沉水植物、微生物、水生昆虫到鱼等湖泊原有生态食物链，恢复水体生态系统的良性循环和自净能力。试验结果表明，食藻虫食藻效果十分显著，能有效减少蓝细菌以及铜绿微囊藻（microcystis aeruginosa）的生物量,自然环境稳定性良好，易于操控。　　

关键词：食藻虫 浮游植物 藻类 甲基汞　　

the 62dm biology food algae insect boost lake ecology repairs　　

gao shirong sun fengying 　　

(　chinese　　center　 for disease control and prevention environment and health related product security institute, 　　beijing　　, 100050)　　

[abstract] uses indoor is controlled the ecosystem the experimental technique, has studied in the eutrophication water body the food algae insect the control action which grows to the algae. contains the plant plankton through the food algae insect population''s strength the development, thus reduces the algae biomass, enhances the water the transparency, finally achieves the improvement water quality the goal. and connects gradually restores from the submerged plant, the microorganism, the aquatic insect to lake original ecology food chain and so on fish, restores the water body ecosystem the positive cycle and automatic depuration ability. the test result indicated that eats the algae insect food algae effect to