This is one of the largest freshwater fishes in the world. The Arapaima uses a labyrinth organ for respiration. This is an organ thick with blood vessels which opens into the fishes mouth. This gives the Arapaima great advantage in oxygen deprived waters as this fish is actually an air-breather. Length: more than 2 meters (6.6 feet), maximum 2.5 meters (8.2 feet) Weight: over 100 kg (220 lbs), maximum 200 kg (440 lbs) Diet: fish, crustaceans, small land animals near the shore Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Order: Osteoglossiformes Family: Osteoglossidae Subfamily: Heterotidinae Genus: Arapaima (J. P. Muller, 1843) Species: Arapaima gigas (Schinz, 1822)
This is one of the largest freshwater fishes in the world. The Arapaima uses a labyrinth organ for respiration. This is an organ thick with blood vessels which opens into the fishes mouth. This gives the Arapaima great advantage in oxygen deprived waters as this fish is actually an air-breather. Length: more than 2 meters (6.6 feet), maximum 2.5 meters (8.2 feet) Weight: over 100 kg (220 lbs), maximum 200 kg (440 lbs) Diet: fish, crustaceans, small land animals near the shore Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Order: Osteoglossiformes Family: Osteoglossidae Subfamily: Heterotidinae Genus: Arapaima (J. P. Muller, 1843) Species: Arapaima gigas (Schinz, 1822)