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Pacú (''Piaractus mesopotamicus''), pez chato ("flat fish"), mbiraí, or piraí, is a South American ray-finned fish that is endemic to the Paraguay-Paraná River basin, though it has been introduced by aquaculture activities in a wider area. ''P. mesopotamicus'' is a robust fish, with ovoid shape, flattened laterally. Its colour is dark grey to silver, with a white belly and a yellow breast, and the laterals have small darker spots. This fish is an omnivore. Young individuals usually feed on micro-crustaceans, but adults choose insects and plants, as well as nuts and seeds that fall from trees in flooded forests. ==References== * * * (Migratory fishes of the Upper Paraná River basin, Brazil ). A. A. Agostinho, L. C. Gomes, H. I. Suzuki, H. Ferreira Júlio Jr. Núcleo de Pesquisas em Limnologia, Ictiologia e Aqüicultura (Nupelia). Universidade Estadual de Maringá. Maringá, Paraná, Brazil. * (El Pato Web: Especies del Paraná ) (in Spanish) ja:コロソマ 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Piaractus mesopotamicus」の詳細全文を読む スポンサード リンク
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