Curimatá-piao
The curimatá-piao is a detritus-feeding characiform native to the São Francisco River basin — one of Brazil's most important food fish and a staple of artisanal and subsistence fisheries throughout that drainage.
It has also been introduced into the Jequitinhonha River. Reaching nearly 60 cm and over 4 kg, it draws both commercial netters and recreational anglers who value it on the table as much as on the line.
Scientific Name: Prochilodus costatus
Also known as Curimatá-pioa, Curumatã, Crumatá, Curimatá pioa, Curimatã-piao, Corumbatá, Curimatá, Curimba
- Elongated, laterally compressed silver body with faint horizontal scale rows that can give a faintly striped look in good light.
- Small, fleshy, downturned mouth lined with fine teeth — the hallmark of a bottom-grazing detritivore; easy to distinguish from predatory characins.
- Typical catch runs 25–40 cm; fish above 50 cm and approaching 4.4 kg are considered large for the species.
- Fins are generally clear to pale; no bold color markings — plainer than related species like the curimatã (Prochilodus nigricans).
What to know
Habitat Distribution
- Native exclusively to the São Francisco River basin; also reported as introduced in the Jequitinhonha River drainage in Minas Gerais and Bahia.
- Lives in freshwater rivers and associated floodplain lakes (lagoas), favoring whitewater and clearwater environments over dark, acidic blackwater.
- A potamodromous species — it completes its entire life cycle in fresh water but undertakes seasonal migrations within the river system.
- Spends much of its time near the bottom in the water column, rooting through soft sediment and organic debris.
Key Locations
- Rio São Francisco — the species' native range; the main river and its tributaries in Minas Gerais and Bahia are the core fishery.
- Rio Jequitinhonha — an introduced population has been documented here, expanding the fish's accessible range for anglers in eastern Minas Gerais.
Specific Spots
- Sandy or muddy river-bottom flats where organic detritus accumulates — this is where the fish actively feeds, so bottom-contact presentations work best.
- Shallow floodplain lagoas and backwaters connected to the main São Francisco channel, especially during high-water periods when fish disperse to feed.
- River-channel margins and current breaks near submerged structure, where migrating schools stage before and after spawning runs.
- Deep pools and slower bends during low water, when fish concentrate as floodplain habitats dry out.
Curimatá-piao FAQ
Answers from onWater's species guide.
What are the best lures and bait for Curimatá-piao?
Natural and fermented baits, dough balls, fermented corn, and similar soft preparations, are the most reliable choice, matching the organic material the fish naturally grazes on.
When is the best time to fish for Curimatá-piao?
Rising water (roughly October–January in the São Francisco basin) brings spawning migrations and concentrates fish in river channels, the most reliable time to intercept large schools. High-water period: fish disperse into floodplain lagoas and backwaters to feed; harder to locate but present in good numbers.
How do you catch Curimatá-piao?
Most fishing for curimatá-piao in Brazil is done from the bank or small boats anchored over productive bottom flats, using natural baits on simple bottom rigs. Artisanal fishers also take them in cast nets during spawning migrations when schools concentrate in river channels.
What do Curimatá-piao eat?
Feeds almost entirely on bottom sediment, algae, and decomposing organic matter, a true detritivore. This makes conventional lure fishing less productive; most anglers target it with natural baits presented on or very near the bottom.
Where do Curimatá-piao live?
Native exclusively to the São Francisco River basin; also reported as introduced in the Jequitinhonha River drainage in Minas Gerais and Bahia. Lives in freshwater rivers and associated floodplain lakes (lagoas), favoring whitewater and clearwater environments over dark, acidic blackwater.
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