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Rio Madeira Peacock Bass Fishery

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This region fishes well from August through November (Igapo Acu). Mostly clear blackwater provides excellent conditions for both fly and conventional tackle. The Madeira, like the Solimoes is a whitewater system, carrying suspended particulate matter from the Andes and is not itself a peacock bass fishery. However, many of its tributaries exclusively drain lowlands flooded forest (igapo).  During high water, this submerged vascular plant material is steeped by the flood, like a vast tea bag, emitting tannic, fulvic and humic acids, making these rivers acidic blackwater systems. Lower Madeira tributaries such as the Igapo Acu and Matupiri provide perfect habitat for Cichla temensis, the giant peacock bass. These rivers are equally excellent for fly and conventional anglers. They are known for quantity, typically producing large numbers of peacock bass. There are good numbers of trophy sized fish in the mid to upper teens, and occassionally a big hulking 20+ pounder. This is the place to go if your goal is lots of action, no matter the fishing style. We concentrate on this region from late August through early-October, when water levels are generally perfect. The Rio Madeira basin represents a great balance between quantity and size and is a great place to start a serious peacock bass habit.

rio madera map
Rio Madera Peacock Bass Fishery Map

For more information about where to fish and when, see our detailed Peacock Bass Primer.

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