Research Project code：0250002717
Update date：Dec. 15, 2003
Study on lake restoration by a biomanipulation method using native ecological system
2000 - 2002
Investigating Researcher (1)：
Biomanipulation is an ecological engineering technique useful for improvement of water quality in lakes. However, it is well known that its methods using introduction of foreign species, such as release of piscivorous fish to eliminate planktivorous fish, causes genetic disturbance in a lake ecosystem. A method based on functional acceleration of native ecosystem is investigated to improve transparency of lake water through control of algal biomass. Ecological functions and controlling factors of native zooplanktons isolated from Lake Kamakita are determined in laboratory experiments, and the application of useful zooplanktons is performed in mesocosm scale experiments in Lake Kamakita.
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