pseudoscopelo-de-nadadeira-alta
Pseudoscopelus altipinnis
Open-sea, deep-water fish, between 50 and 1,870 m. It occasionally shows up on sport-fishing lines, but has no commercial interest.
Also called: pseudoscopelo-de-nadadeira-alta
- maximum
- 20 cm
- depth
- 50–1,870 m
who is the pseudoscopelo-de-nadadeira-alta
Fish of the family Chiasmodontidae, with an elongated body, living in the open sea, from midwater to great depths, between 50 and 1,870 m. It reaches 20 cm, with a common length near 10 cm. It occurs in warm and subtropical regions of the Atlantic and Pacific, with records also in the Indian Ocean. One specimen was recorded at 4,631 m depth. It has no commercial interest, but occasionally enters the sport 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 pseudoscopelo-de-nadadeira-alta.
fun facts
- There is a record at 4,631 m depth, well beyond the species' usual range.
identification
Elongated body of normal shape, with long dorsal and anal fins. It has photophores, light-producing organs on the skin, in a pattern that helps separate it from similar species. By its teeth, it differs from Pseudoscopelus paxtoni: the innermost teeth at the front of the upper jaw are not very long and, with the mouth closed, do not reach the opposite side, and the teeth in the inner rows are slightly curved.
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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, it occurs in Brazil and Suriname, in the open sea, with records also in the Bahamas.
Habitat: Open sea, from midwater to great depths, 50 to 1,870 m.
coast
rules for the pseudoscopelo-de-nadadeira-alta
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 it lives at great depth, it suffers barotrauma when brought up quickly, so release it as deep as possible.
how much it weighs without taking it out of the water
Length-weight relationship W = a·Lb (a = 0.01072, b = 3.03; 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: Pseudoscopelus altipinnis (ficha da espécie)Size, length-weight, depth, habitat, distribution, biology, and IUCN status. Page checked on Oct 13, 2026.
- scientific FishBase: nomes populares de Pseudoscopelus altipinnisNames 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.