Arapaima vs Tarpon
Arapaima gigas compared with Megalops atlanticus
Taxonomy & Classification
| Attribute | Arapaima | Tarpon |
|---|---|---|
| Scientific Name | Arapaima gigas | Megalops atlanticus |
| Order | Osteoglossiformes | Elopiformes |
| Family | Arapaimidae | Megalopidae |
| Conservation Status | Data Deficient | Vulnerable |
Physical Traits
| Attribute | Arapaima | Tarpon |
|---|---|---|
| Max Length | 450.0 cm | 250.0 cm |
| Max Weight | 200.0 kg | 161.0 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. | Brilliant chrome-silver flanks with large, plate-like reflective scales producing a mirror-like sheen; back is dark blue-green; fins clear to dusky with elongated dorsal ray. |
Habitat & Environment
| Attribute | Arapaima | Tarpon |
|---|---|---|
| Water Type | Freshwater | Freshwater & Saltwater |
| Depth Range | — | 0-40m |
| 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 … | Western and eastern Atlantic from Virginia south through the Caribbean Sea, Gulf of Mexico, and along the South American coast to Brazil; also West Africa. … |
| 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. … | Coral reefs, estuaries |
Fishing Information
| Attribute | Arapaima | Tarpon |
|---|---|---|
| Game Fish | Yes | Yes |
| Fight Rating | 10/10 | 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.
Tarpon
Bony flesh with a strong, somewhat coarse texture; rarely eaten in modern sport fishing. Primarily catch-and-release; not commonly consumed due to bones and Vulnerable status.
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.
Tarpon
The tarpon is often called the 'Silver King' for its large mirror-like scales and acrobatic leaps. This ancient species has existed for over 100 million years and can breathe air using a modified swim bladder.