田植えの後に雨がふると、産卵のために、魚たちが苗のね元に集まります。あたたかく、ようぶんがあるので、卵が育ちやすいそうです。さい近は、はい水のだんさがあるので魚は登って来れなく魚道というのが作られています。
地図を読み込み中...
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