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> Scombriformes (Mackerels) > Chiasmodontidae (Snaketooth fishes)
Etymology: Pseudoscopelus: Greek, pseudes = false + Greek, skopelos = a lantern fish (Ref. 45335). Lütken did not recognize the presence of photophores on the body, confusing them with pores, but referred to a genus of lanternfish (Scopelus now Myctophum) when he named the genus (Ref. 85782); astronesthidens: Named for the characteristic shape of the marginal premaxillary teeth, resembling the dentition in the stomiiform genus Astronesthes.

Environment: milieu / climate zone / depth range / distribution range Ecología

marino batipelágico; rango de profundidad 610 - 1250 m. Deep-water

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

North Atlantic: Endemic to the North Atlantic and has a central-oceanic type of distribution; Canada, USA (Ref. 78617). Recorded once in UK (Ref. 57779), and once in France (Ref. 126430).

Tamaño / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 22.0 cm TL macho / no sexado; (Ref. 126430)

Short description Claves de identificación | Morfología | Morfometría

Espinas dorsales (total) : 7 - 8; Radios blandos dorsales (total) : 23 - 28; Radios blandos anales: 23 - 28; Vértebra: 36 - 37. This species is characterized by the following: dark orobranchial cavity; inclined teeth in the marginal row on the premaxillary are increased in size in the postorbital portion of the bone; teeth on the tongue; minute or no gill rakers on first gill arch; maxillary (suborbital) photophores usually well developed, disconnected with anteropreopercular photophores; well developed posteropreopercular photophores; no transverse ventral (interventral) photophores; thin cranial roofing bones; upper jaw long, 66.7-76.2% head length (HL), usually more than 69% HL (80% of specimens; mean 70.3%); moderately long pectorals, 16.0-22.5% SL, usually more than 17% SL (95% of specimens; mean 19.1%); group of three pores above the second nare; 36-37 vertebrae (Ref. 78617).

The depth range is a mix of Ref. 57779, 78617 and 126430.

Life cycle and mating behavior Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva

Main reference Upload your references | Referencias | Coordinador : Paxton, John | Colaboradores

Prokofiev, A.M. and E.I. Kukuev, 2006. Two new species of linebellies (Genus Pseudoscopelus) with a revised key of species (Perciformes: Chiasmodontidae). J. Ichthyol 46 (Suppl. 1):21-37. (Ref. 78617)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 12 October 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses

FAO - Publication: search | FishSource |

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Trophic ecology
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Estimates based on models

Preferred temperature (Ref. 123201): 2.5 - 3.1, mean 2.8 °C (based on 1162 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Nivel trófico (Ref. 69278): 3.7 ±0.2 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (12 of 100).

Pseudoscopelus astronesthidens Prokofiev & Kukuev, 2006