Freshwater fish of Brazil

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species of fish

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species of chordates

The tambaqui (Colossoma macropomum) is a large species of freshwater fish in the family Serrasalmidae. It is native to tropical South America, but kept in aquaculture and introduced elsewhere. It is also known by the names black pacu, black-finned pacu, giant pacu, cachama, gamitana, and sometimes as pacu (a name used for several other related species).

The arapaima, pirarucu, or paiche is any large species of bonytongue in the genus Arapaima native to the Amazon and Essequibo basins of South America. Arapaima is the type genus of the subfamily Arapaiminae within the family Osteoglossidae. They are among the world's largest freshwater fish, reaching as much as in length. They are an important food fish. They have declined in the native range due to overfishing and habitat loss. In contrast, arapaima have been introduced to several tropical regions outside the native range (within South America and elsewhere), where they are sometimes consider

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Hasemania is a genus of freshwater ray-finned fishes belonging to the family Acestrorhamphidae, the American characins. The species in this genus are endemic to Brazil, where only found in river basins that originate on the Brazilian Shield, ranging west to the Juruena system, north to the São Francisco system and south to the Paraná system. The individual species generally have quite small ranges and two, H. crenuchoides and H. piatan, are considered threatened by Brazil's Ministry of the Environment.

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Utiaritichthys is a genus of serrasalmid fish found in the Amazon and Orinoco basins in tropical South America. The adults are typically found in rapidly flowing water where they feed on aquatic plants in the family Podostemaceae and filamentous algae. They reach up to in standard length.

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Rachoviscus is a genus of freshwater ray-finned fishes belonging to the family Acestrorhamphidae, the American characins. These threatened fish are endemic to coastal river basins in Bahia, Paraná and Santa Catarina in eastern Brazil.

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genus of fishes

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Rio de la Plata onesided livebearer

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