Proj
J-GLOBAL ID:200904038846860912  Research Project code:0250002717 Update date:Dec. 15, 2003

Study on lake restoration by a biomanipulation method using native ecological system

既存生態系を活用したバイオマニピュレーション手法による汚濁湖沼の水質改善に関する研究
Study period:2000 - 2002
Organization (1):
Investigating Researcher (1):
Research overview:
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.
Research program: Ordinary Research

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