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Arthington et al. 2010. Preserving the biodiversity and ecological services of rivers: new challenges and research opportunities. Freshw Biol 55:1-16.

At least 200 environmental flow methods and approach in use....（後略）. Yet, there still remains a critical need for greater understanding of flow-ecological response relationships...（略）

ようわからん状態で，よく200もの方法を作りましたね。お疲れ様です。