場所岡山市児島湖 (羅保派)

場所岡山市児島湖は人口密集地帯に囲まれ、瀬戸内地方特有の降水量の少なさ、農地に用いる肥料由来の窒素やリンなどの有機物の流入で、日本屈指の汚染された湖として悪名を轟かせた。

テナガエビは、汚染された水にも強く、水中の有機物を旺盛に食べるため、水質の浄化に貢献してくれる。また高級食材だし、うなぎのエサにもなる。

Lake Kojima has gained notoriety as one of the most polluted lakes in Japan due to being surrounded by densely populated areas, the low precipitation typical of the Seto Inland region, and the influx of organic matter such as nitrogen and phosphorus from fertilizers used in agricultural lands. The freshwater prawn is resilient even in contaminated waters and plays a role in purifying water by consuming organic matter abundantly. It is considered a premium food item and is used as feed for eels. But from my point of view, that's nothing more than wishful thinking. 

1959 児島湖

　広大な農地と引き換えに

　美しい内海と干潟は消えた tidal flat