Arapaima
Arapaima gigas
Arapaima gigas is one of the world’s largest freshwater fish, native to the Amazon Basin. It breathes air and often rolls or gulps at the surface, making it easy to notice but very challenging to land.
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Identification points
- Massive elongated body with a broad, flattened head
- Large reddish-orange tail and rear body in adults
- Tiny dorsal fin set far back near the tail, with armored-looking scales
Habitat
Large slow-moving rivers, floodplain lakes, backwaters, and swampy margins of the Amazon Basin, especially warm, low-oxygen waters with dense cover.
Bait notes
Large live baitfish, cut fish, and substantial lures that imitate injured forage can work. In managed fisheries, oversized soft plastics or swimbaits are also used; check local rules because many populations are protected or regulated.
Behavior
A surface-breathing predator that ambushes fish, crustaceans, and other prey in calm water. It is most active near the surface and can be wary in heavily pressured waters.
Caution
Populations are heavily regulated in much of its range; verify local harvest rules and permits before fishing. Its size and power require heavy gear and careful boat handling.
Fishing notes
Target calm, shallow edges, submerged structure, and surface-breathing spots. Use heavy tackle, strong hooks, and controlled drag; this fish is powerful and can make sudden runs and leaps.