cascudo-graveto-rugoso
Farlowella rugosa
Slender, long armored catfish that looks like a twig, from the Guianas basins. Reaches 21.4 cm and is used commercially and in the aquarium trade.
Also called: cascudo-graveto-rugoso, cascudo-graveto, cascudo
- maximum
- 21 cm
- depth
- 0–2 m
who is the cascudo-graveto-rugoso
The rugose twig cascudo is a freshwater armored catfish of the family Loricariidae, reaching 21.4 cm. It occurs in the Essequibo, Marowijne and Corantijn river basins in the Guianas. It lives in forest streams 4 to 8 meters wide and 0.3 to 2 meters deep, over sandy bottoms, with current. During breeding, males have small spines on the snout. Like other members of the genus, it partly breathes air. It has commercial fishing and is used in the aquarium trade. For anglers it has no sport appeal.
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 cascudo-graveto-rugoso; in the meantime, see the similar species.
identification
Very thin, long armored catfish that looks like a twig. It can be confused with the reticulated twig cascudo (Farlowella reticulata), which lives in the same Guianas. By size this is the larger one, reaching 21.4 cm, while the reticulated one reaches 15.3 cm. During breeding, males show small spines on the snout.
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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.
where found
Essequibo, Marowijne and Corantijn river basins in the Guianas, in freshwater streams.
Habitat: Forest streams 4 to 8 meters wide, over sandy bottoms, with current, in the Guianas.
rules for the cascudo-graveto-rugoso
Summary of the regulations we found, with the source for each. Rules change; before keeping or transporting fish, check with the state environmental agency.
We found no species-specific rule beyond the region's general rules.
catch and release
catch and release Releasing the fish alive, quickly and with a wet hand. During a closed season it isn't always allowed: what the regulation says applies.
No known danger to anglers. Handle it carefully, since it is a thin, long fish.
how much it weighs without taking it out of the water
Length-weight relationship W = a·Lb (a = 0.00398, b = 3.11; FishBase (relação peso-comprimento bayesiana, estimativa)). It's an average: a fat or lean fish can vary by 10% to 20%.
estimated weight
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sources and references
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.
- scientific FishBase: Farlowella rugosa (ficha da espécie)Size, length-weight, depth, habitat, distribution, biology, and IUCN status. Page checked on Oct 13, 2026.
- scientific FishBase: nomes populares de Farlowella rugosaNames by country and language.
