Arapaima is the type genus of the subfamily Arapaiminae within the family Osteoglossidae. [1][2][3] They are among the world's largest freshwater fish, reaching as much as 3 m (9.8 ft) in length. [2]

Oct 30, 2024 · A keystone species of the Amazon River ecosystem, the arapaima is a powerful predator known by many names.

The arapaima is a massive yet sleek, streamlined freshwater fish native to the streams of the Amazon River basin. It can breathe air, allowing it to survive in pools with low water levels or decaying …

The Arapaima are several species of colossal freshwater fish from South America. They’ve likely been around, almost unchanged, since before the dinosaur extinction, and could have grown to even …

The Arapaima (Arapaima gigas, though recent research suggests multiple species exist within the genus) is one of the largest freshwater fish on Earth, regularly reaching lengths of over 6.5 feet (2 …

Aug 14, 2025 · Arapaima are very large, air-breathing freshwater fishes (bonytongues) from tropical South America, famous for their size, surface-breathing behavior, and importance in fisheries and …

The arapaima, Arapaima gigas (Arapaimidae), is among the largest known freshwater fish species with sizes up to 14 feet and 440 pounds. They have a streamlined, oval shape with a large, flattened head.

The arapaima, one of the world’s largest freshwater fish, is an ancient lineage native exclusively to the Amazon and Essequibo river basins of South America. It has evolved remarkable adaptations to …

Mar 30, 2026 · Arapaima’s biology and market potential deserves bold innovation to create a thriving, sustainable aquaculture industry for the species.

Also known as the paiche or the pirarucu, the arapaima is an air-breathing fish that plies the rainforest rivers of South America's Amazon Basin and nearby lakes and swamps.