Corimbatá
Prochilodus vimboides — known locally as corimbatá or curimba-de-Ipanema — is a small to medium-sized detritivore endemic to Brazil's Atlantic drainage in São Paulo state. Once common in the Sorocaba and Ipanema river systems, it is now genuinely rare.
Anglers fishing the Sorocaba basin may encounter it, but a capture today is more conservation event than routine catch.
Scientific Name: Prochilodus vimboides
Also known as corimbatá, curimba-de-Ipanema, grumatã
- Elongated, silvery body with faint horizontal streaking along the flanks — typical of the Prochilodus genus and easy to confuse with the more common Prochilodus lineatus.
- Distinctive fleshy, protractile mouth adapted for scraping algae and organic matter from riverbeds — a key ID feature that separates it from most other characins.
- Reaches up to about 46.5 cm in length; a medium-sized fish by Brazilian river standards, smaller on average than its cousin P. lineatus.
What to know
Habitat Distribution
- Endemic to Brazil — found nowhere else in the world. Its natural range is restricted to the upper Sorocaba River basin in São Paulo state, with the Ipanema River (in Iperó) as its type locality.
- A rheophilic species — it prefers flowing water, riverbeds, and the rocky or sandy runs of lotic environments rather than still-water lakes or reservoirs.
- Marginal lagoons connected to rivers can serve as nursery habitat, particularly for juveniles seeking food and shelter during high-water periods.
- Increasingly rare across its already limited range; a single specimen was recorded in the Ipanema River in 2020 after more than 150 years without a confirmed capture there.
Key Locations
- Rio Sorocaba, São Paulo state — the core of this species' known range and the river system where most historical records originate.
- Rio Ipanema, Iperó, São Paulo — the type locality where the species was first described; now protected within the Floresta Nacional de Ipanema.
Specific Spots
- Rocky or sandy riverbeds in flowing stretches — this fish feeds by scraping substrate, so look for it where current keeps the bottom clean and algae can grow.
- Marginal lagoons and backwater areas connected to the main river channel, especially during high water, when fish move in to feed and juveniles use the shallows as cover.
- Current breaks and slower runs just downstream of riffles, where organic detritus settles and foraging is easier.
Corimbatá FAQ
Answers from onWater's species guide.
What are the best lures and bait for Corimbatá?
Flour dough (massa de farinha) is a traditional and effective bait, formed into a small ball on a fine-wire hook and fished on the bottom where the fish scrapes for food.
When is the best time to fish for Corimbatá?
Rainy season (roughly October–March in São Paulo state) likely triggers spawning migrations into flooded marginal areas, as is typical for Prochilodus species in southeastern Brazil.
How do you catch Corimbatá?
Given the species' threatened status and extreme rarity, directed targeting is not advisable. Anglers fishing the Sorocaba basin for other Prochilodus species using bottom rigs and natural baits may occasionally encounter it as an incidental catch. Any capture should be documented and released immediately.
What do Corimbatá eat?
Feeds almost entirely on algae, biofilm, plant debris, and organic matter scraped from riverbeds and rocks, its protractile mouth is built for exactly this.
Where do Corimbatá live?
Endemic to Brazil, found nowhere else in the world. Its natural range is restricted to the upper Sorocaba River basin in São Paulo state, with the Ipanema River (in Iperó) as its type locality.
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