peixe-olhudo
Hyperoglyphe macrophthalma
Open-sea fish known only from records off Macaé, Rio de Janeiro. It has sport-fishing interest.
Also called: peixe-olhudo
- maximum
- 57 cm
who is the peixe-olhudo
The peixe-olhudo (bigeye) belongs to the family Centrolophidae and reaches 57 cm standard length. It is an oceanic pelagic fish of the open sea, known only from records along the coast of Macaé, in the state of Rio de Janeiro. Because it is little known, there is almost no information on feeding, reproduction or behavior. It has a spindle-shaped body, common among open-sea fish, and is treated as a species of sport-fishing interest, although it is rare on the line.
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 peixe-olhudo.
identification
Spindle-shaped fish of medium size, reaching 57 cm, with a long dorsal fin. This species is little known, and there is no description of color or markings. What helps identify it is the location: only records from the coast of Macaé (RJ), in the open sea, are known. Any similar catch should be photographed and handed to a specialist.
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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
In Latin America, the species is known only from Brazil, with a record from Macaé, on the coast of Rio de Janeiro, in the open sea.
Habitat: Open sea and oceanic pelagic, far from the coast.
coast
rules for the peixe-olhudo
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.
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.
Not dangerous to anglers. Since the species is little known, it is best to release the fish alive whenever possible.
how much it weighs without taking it out of the water
Length-weight relationship W = a·Lb (a = 0.00871, b = 3.1; 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: Hyperoglyphe macrophthalma (ficha da espécie)Size, length-weight, depth, habitat, distribution, biology, and IUCN status. Page checked on Oct 13, 2026.
- scientific FishBase: nomes populares de Hyperoglyphe macrophthalmaNames by country and language.
- official Portaria GM/MMA nº 1.667, de 27 de abril de 2026: Lista Nacional Oficial de Espécies da Fauna Ameaçadas de Extinção (peixes e invertebrados aquáticos)The species is not on the list. Checked in the DOU of April 28, 2026.