Arapaima
Arapaima gigas · Fish, Vertebrate, Cold-blooded, Wild
Animal Family
Family Arapaimidae, Order Osteoglossiformes, Class Actinopterygii
Animal Category
Freshwater Animal
Breed / Variety
Wild species, South American giant freshwater fish
Conservation Status
Data Deficient on the IUCN Red List due to difficulties in surveying remote populations, but widely recognized as heavily depleted and locally endangered due to intense overfishing.
About This Creature
Massive torpedo-shaped body, reaching lengths up to 10 feet (3 meters) and weights up to 440 pounds (200 kg). Features large scales with a greenish-black hue on the front and bright red or pinkish blotches towards the rear and on the underbelly. Broad flat head and upturned mouth.
Physical Characteristics
Streamlined body built for explosive power, large bony head, small eyes, dorsal and anal fins set far back near the tail to propel powerful lunges, heavily armored scales that resist piranha bites, and a modified swim bladder functioning as a lung for breathing atmospheric air.
Behavior & Temperament
Solitary except during breeding season, air-breathing obligate (must surface every 5-15 minutes), territorial during spawning, males practice mouthbrooding of eggs and fry, highly powerful and capable of leaping out of the water.
Habitat & Diet
Origin Region
Amazon and Essequibo basins of South America, introduced to other tropical regions for aquaculture
Habitat
Freshwater (River/Lake), Aquatic
Diet & Nutrition
Carnivore, primarily feeding on other fish, crustaceans, and occasionally small land animals near the water's surface, hunting by suction and sudden strikes.
Lifespan & Health
Lifespan of 15 to 20 years in the wild, vulnerable to overfishing, commercial harvesting, and habitat degradation. Lays eggs in nests built on sandy bottoms during low-water seasons.
Special Characteristics
Possesses a specialized vascularized swim bladder that allows it to breathe air, enabling survival in oxygen-depleted floodplain waters. Highly prized as a game fish and food source in South America.
Ecological Information
Apex freshwater predator in its native ecosystem, controlling fish populations and playing a significant role in maintaining the trophic balance of Amazonian floodplain rivers.