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loach (any fish of family Cobitidae)
weather loach (Misgurnus anguillicaudatus); pond loach
川で泥鰌を捕まえた。
I caught a loach in the river.
祖父の一番の好物は柳川鍋に入った泥鰌だった。
Grandfather's absolute favorite was the loach in yanagawa-nabe.
田んぼに水を張ると、無数の泥鰌が顔を出し始める。
When you flood the rice paddies, countless loaches start poking their heads out.