Cyphocharax saladensis
Small curimatã from the southern Plata basin and coastal rivers of Rio Grande do Sul and Santa Catarina. It is caught for trade.
Also called: birú, sabalito, rosy curimata
The birú belongs to the family Curimatidae, the curimatãs, which have no teeth in the mouth. It is a small fish, reaching 9.8 cm and 12 g. It occurs in the southern Plata basin, in Argentina, Paraguay and Brazil, and in coastal rivers of Rio Grande do Sul and Santa Catarina. It lives between the bottom and midwater, in fresh water, and feeds on detritus. In fishing it has commercial use.
Essential profile. Identification, where it occurs and rules, with data from FishBase and the cited regulations. Season, time of day, technique and bait are added once we have a good source for the rosy curimata.
Small fish of the family Curimatidae, with no teeth in the mouth and a body compressed sideways. It reaches 9.8 cm, which helps tell it apart from the other curimatãs of the region. It occurs in the southern Plata basin, in the Uruguay River, and in coastal rivers of Rio Grande do Sul and Santa Catarina.
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Each card shows the day's index (0 to 100) and, below it, a strip with the index for each hour, from 0h to 23h. from poor to excellent.
Essential profile: the index uses a general fish model (weather, sun, moon and tide), without a season or time of day specific to this species.
Occurs in the southern Plata basin, in Brazil (Uruguay River), Argentina and Paraguay, and in coastal rivers of Rio Grande do Sul and Santa Catarina.
Habitat: Fresh water, between the bottom and midwater, in rivers and lagoons of the southern Plata basin and the Rio Grande do Sul coast.
native to the basins
Summary of the regulations we found, with the source for each. Rules change; before keeping or transporting fish, check with the state environmental agency.
Conservation: Not on the Brazilian national list (Ministerial Ordinance GM/MMA No. 1.667/2026).
We found no species-specific rule beyond the region's general rules.
Allowed: Recreational fishing from shore, or from a boat without motor. Only handline or rod, line and hook, one gear per angler, up to 5 kg. Prohibited in floodplain lakes, within 1,500 m of dams, within 500 m of confluences, and in stretches listed in the rule (e.g., Turvo River).
Source: IN IBAMA nº 193/2008
Allowed: Recreational fishing from a boat or from shore, with a single hook, one gear per angler, up to 5 kg.
Source: IN IBAMA nº 197/2008
No spines or venom. It is a very small fish: take the hook out carefully.
Length-weight relationship W = a·Lb (a = 0.01, b = 2.99; FishBase (relação peso-comprimento bayesiana, estimativa da própria espécie)). It's an average: a fat or lean fish can vary by 10% to 20%.
estimated weight
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Essential profile: size, length-weight, depth, countries and conservation come from FishBase and the cited regulations, and the texts were written from those sources. Season, time of day, sensitivities, technique and baits and lures are not included yet, because we did not find a good source for this species.
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