carruco sargo
Genyatremus pacifici
Grunt of shallow hard bottoms in the eastern Pacific, with dark bands on its grey body. It is caught on a small scale and sold fresh in markets.
Also called: roncador-sapato-preto, burro carruco, zapato negro, carruco grunt
- maximum
- 35 cm
who is the carruco sargo
The black-shoe grunt belongs to the family Haemulidae, the grunts. It reaches 35 cm, and its common size is 20 cm. It lives in the eastern Pacific, from Mexico to Peru, over hard bottoms in shallow coastal waters, such as rocks. It has a compressed, deep body, with a small, terminal mouth and thick lips. The body is grey, with four or five irregular transverse bands that fade with age. Commercial fishing takes it on a small scale.
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 carruco sargo; in the meantime, see the similar species.
identification
Grey body, with four or five irregular transverse bands that fade with age. The fins are almost black. The pectoral fin is shorter than the head and does not reach the base of the anal fin. It can be confused with Conodon serrifer, which has a charcoal-grey back with blue reflections, flanks with finer, darker stripes, and dark greenish-yellow fins.
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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
Found in the eastern Pacific, from Mexico to Peru, in coastal waters over hard bottoms.
Habitat: Hard bottoms in shallow coastal waters, such as rocks.
rules for the carruco sargo
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 danger to anglers. If released, return it to the water carefully.
in the kitchen
Sold fresh in markets; it is a food fish.
how much it weighs without taking it out of the water
Length-weight relationship W = a·Lb (a = 0.01905, b = 2.95; 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: Genyatremus pacifici (ficha da espécie)Size, length-weight, depth, habitat, distribution, biology, and IUCN status. Page checked on Oct 13, 2026.
- scientific FishBase: nomes populares de Genyatremus pacificiNames by country and language.
