Arapaima vs Red Lionfish
Arapaima gigas compared with Pterois volitans
Taxonomy & Classification
| Attribute | Arapaima | Red Lionfish |
|---|---|---|
| Scientific Name | Arapaima gigas | Pterois volitans |
| Order | Osteoglossiformes | Scorpaeniformes |
| Family | Arapaimidae | Scorpaenidae |
| Conservation Status | Data Deficient | Least Concern |
Physical Traits
| Attribute | Arapaima | Red Lionfish |
|---|---|---|
| Max Length | 450.0 cm | 38.0 cm |
| Max Weight | 200.0 kg | 1.1 kg |
| Color | Dark olive-gray to grayish-black back with large scales that become vivid red-orange with black borders on the posterior flanks; belly pale cream; caudal fin reddish and rounded. | White to cream body with alternating bold reddish-brown and white vertical bands; fan-like pectoral fins are banded with red-brown and white spots; long dorsal spines are striped and venomous. |
Habitat & Environment
| Attribute | Arapaima | Red Lionfish |
|---|---|---|
| Water Type | Freshwater | Saltwater |
| Depth Range | — | 2-55m |
| Geographic Range | Restricted to the Amazon River basin in Brazil, Peru, Guyana, and Bolivia. Inhabits flooded várzea lakes, oxbows, and large river channels; surfaces frequently to breathe … | Native to the Indo-Pacific from East Africa and the Red Sea to southern Japan, Australia, and the Marquesas. Invasive in the western Atlantic and Caribbean … |
| Habitat | Floodplain lakes (várzea) and large river channels of the Amazon basin. Slow-moving, shallow, warm freshwater (26-30°C). An obligate air-breather; rises to surface to gulp air. … | Neritic, coral reefs |
Fishing Information
| Attribute | Arapaima | Red Lionfish |
|---|---|---|
| Game Fish | Yes | No |
| Fight Rating | 10/10 | — |
| World Record | — | — |
| Mercury Level | — | — |
Cuisine & Edibility
Arapaima
Large, firm white fillets with a mild, clean flavor and low fat; historically a staple protein in Amazonian communities. Often salted and dried; sustainable harvest is tightly regulated.
Red Lionfish
Sweet, buttery white flesh once spines are safely removed; increasingly promoted as a sustainable food source in Atlantic waters where it is an invasive species.
Species Overview
Arapaima
The arapaima is one of the largest freshwater fish in the world, reaching up to 4.5 meters. An obligate air-breather, it must surface every 10-20 minutes to gulp air. Its tongue is bony and used to crush prey against the roof of its mouth.
Red Lionfish
The red lionfish is a venomous coral reef fish native to the Indo-Pacific. Its ornate, striped body and fan-like pectoral fins make it popular in aquariums, but it has become a destructive invasive species in the western Atlantic and Caribbean.