Arapaima vs Atlantic Sailfish
Arapaima gigas compared with Istiophorus platypterus
Taxonomy & Classification
| Attribute | Arapaima | Atlantic Sailfish |
|---|---|---|
| Scientific Name | Arapaima gigas | Istiophorus platypterus |
| Order | Osteoglossiformes | Istiophoriformes |
| Family | Arapaimidae | Istiophoridae |
| Conservation Status | Data Deficient | Least Concern |
Physical Traits
| Attribute | Arapaima | Atlantic Sailfish |
|---|---|---|
| Max Length | 450.0 cm | 340.0 cm |
| Max Weight | 200.0 kg | 100.0 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. | Dark cobalt-blue back and upper flanks with silver-white belly; iconic tall sail-like dorsal fin is cobalt-blue adorned with small round black spots; flanks show faint pale iridescent vertical bars when excited. |
Habitat & Environment
| Attribute | Arapaima | Atlantic Sailfish |
|---|---|---|
| Water Type | Freshwater | Saltwater |
| Depth Range | — | 0-200m |
| 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 … | Tropical and subtropical Atlantic Ocean including the Gulf of Mexico, Caribbean Sea, and the West African coast; closely related forms occur throughout the Indo-Pacific. Prefers … |
| 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, pelagic, coral reefs |
Fishing Information
| Attribute | Arapaima | Atlantic Sailfish |
|---|---|---|
| Game Fish | Yes | Yes |
| Fight Rating | 10/10 | 9/10 |
| 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.
Atlantic Sailfish
Firm, mildly flavored flesh similar to marlin; primarily a catch-and-release sport fish. Edible when smoked or grilled but rarely targeted for food; sport anglers typically release it.
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.
Atlantic Sailfish
The sailfish is the fastest fish in the ocean, reaching speeds up to 110 km/h. Its enormous dorsal fin, or 'sail,' can be raised to herd baitfish. When hooked, it performs spectacular tail-walking displays across the water surface.