Fishing in Amazonas

Amazonas is Brazil's largest state, covering most of the western Amazon basin — a vast lowland of blackwater and whitewater rivers, flooded forests, and remote tributaries that stretch from Manaus toward the Colombian and Peruvian borders.

The fishing here is almost entirely freshwater, and the scale of the watershed shapes everything: where you go, how you get there, and what you're likely to catch. Manaus is the practical hub.

It sits at the Meeting of the Waters, where the dark, tannin-stained Rio Negro runs alongside the sediment-heavy Rio Solimões for nearly six kilometres before they finally merge into the Rio Amazonas.

The contrast is visible from a boat — two rivers side by side, refusing to mix because of differences in temperature, speed, and chemistry.

From Manaus you can run day trips on the Rio Solimões targeting catfish, payara, golden pellona, and black piranha, or head upriver into the Rio Negro system for what most visiting anglers come here for: peacock bass.

The tucunaré — specifically the giant temensis — is the fish that defines sport fishing in Amazonas.

On the Rio Negro and its tributaries around Barcelós, fish averaging 10 to 18 pounds are realistic targets in remote stretches, and the species has produced multiple IGFA world records.

The Rio Marié, a tributary of the upper Negro near the Colombian border, has broken 15 IGFA records since 2014, including the all-tackle length record for peacock bass set in 2023 at 94 centimetres.

Access to the Marié requires flying by floatplane from Manaus and fishing within Indigenous territory under a catch-and-release, fly-fishing-only framework — the first permitted sportfishing operation of its kind in Brazilian Indigenous lands. Timing matters.

The Rio Negro system fishes best when water levels drop and fish concentrate — roughly the dry season, when casting topwater lures into flooded forest edges and lagoons becomes productive.

High water disperses fish across the floodplain and makes them harder to find.

Most guided operations run their seasons around these conditions, and local guides are essential: the river system is enormous, Portuguese is the working language, and the productive water changes with the flood cycle.

The Rio Solimões and Rio Amazonas carry a different character — turbid whitewater rivers with deep channels and long-distance migratory catfish from the family Pimelodidae.

These fish move thousands of kilometres through the basin and are the basis of serious commercial and sport fishing out of Manaus. Amazonas rewards patience with logistics.

Getting to the best water usually means a floatplane, a multi-day houseboat, or a remote lodge. The fish are there, but so is the jungle.