Arapaima
⚡ Key Facts & Quick Answers (AEO Summary)
- Taxonomic Class: Fish & Marine Life
- Dietary Niche: Carnivore (Fish, frogs, water birds, crabs, seeds)
- Max Speed: 25 km/h (15 mph)
- Adult Weight: 100 - 200 kg (220 - 440 lbs)
- Typical Lifespan: 15 - 20 years
- Primary Habitat: Slow-moving Amazonian rivers, flooded forests, lakes
- Native Region: South America (Amazon Basin)
- IUCN Red List: Least Concern
📊 Physical & Biological Metrics
🧬 Scientific Taxonomy & Biological Classification
| Kingdom | Animalia |
|---|---|
| Phylum | Chordata |
| Class | Actinopterygii |
| Order | Osteoglossiformes |
| Family | Arapaimidae |
| Genus | Arapaima |
| Species Binomial | Arapaima gigas |
📖 1. Species Overview
The Arapaima, or Pirarucu, is one of the largest freshwater fish in the world. Possessing armored scales that resist piranha bites, they are air-breathers that must surface every 15 minutes to breathe.
🦿 2. Physical Appearance, Anatomy & Adaptations
Elongated green-black body with red-tipped tail scales, a flat head, and a specialized swim bladder that acts as a lung.
🗺️ 3. Habitat, Geographic Distribution & Territorial Range
Inhabit slow rivers. They swim near the surface, gulps air with a loud coughing sound.
🥩 4. Diet, Feeding Strategy & Hunting Tactics
Hunt near the surface, leaping out of the water to snatch birds, frogs, and grasshoppers from branches.
🐣 5. Reproduction, Lifecycle & Social Hierarchy
Build nest holes in sandy river beds. Both parents guard the eggs and young, with the father protecting fry in his mouth.
🛡️ 6. Conservation Status, Population Threats & Protection
Least Concern, though historically overfished, now protected under strict local quotas.
💡 Fascinating Facts & Trivia
- Arapaima must breathe air to survive; if they are kept underwater for too long, they will actually drown.
- Their scales are incredibly tough and mineralized, serving as natural armor that piranhas cannot bite through.
❓ Frequently Asked Questions (FAQ)
Direct authoritative answers regarding the biology, feeding habits, and habitat of the Arapaima.
The Arapaima is scientifically classified as Arapaima gigas. It belongs to the genus Arapaima within the family Arapaimidae, class Actinopterygii, and phylum Chordata.
In the wild, Arapaimas inhabit Slow-moving Amazonian rivers, flooded forests, lakes. Their native geographic range primarily spans South America (Amazon Basin).
The Arapaima is classified as a Carnivore. It feeds primarily on specialized nutrients suited to its ecological niche in Slow-moving Amazonian rivers, flooded forests, lakes.
A Arapaima can achieve top speeds of 25 km/h (15 mph) and weighs approximately 100 - 200 kg (220 - 440 lbs). Its expected natural lifespan is 15 - 20 years.
The Arapaima (Arapaima gigas) is currently designated as Least Concern on the IUCN Red List of Threatened Species.
Cite this Article
FaunaWiki Zoological Database (2026). "Arapaima (Arapaima gigas) Species Profile."
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