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Perciformes/Cottoidei (Sculpins) >
Liparidae (Snailfishes)
Etymology: Psednos: Greek, psednos, -e, -on = rare (Ref. 45335); kaganovskii: Named after the R/V Professor Kaganovskiy, the vessel used to collect the new species.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
marien bathydemersaal; diepte ? - 1030 m (Ref. 138155). Deep-water
Verspreiding
Gebieden | FAO regio's | Ecosystemen | Voorkomen | Verspreidingskaart | Introducties | Faunafri
Northwest Pacific Ocean: Ojin Seamount in the Emperor Seamount Chain.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm
Max length : 6.2 cm SL mannelijk / geslacht onbekend; (Ref. 138155)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale zachte stralen (totaal) : 39; Anale zachte stralen: 36; Wervels: 47. Diagnosis. Vertebrae 47; D 39; A 35; pectoral fin rays 15; single notch ray; strong spinal hump; keeled gular area; unmodified gill rakers; three round pectoral radials; lacking interradial fenesta, widely spaced second and third radials; small foramen piercing basal lamina anterior to scapula; heavily pigmented stomach, pyloric caeca and anterior half of intestine, and mottled posterior part of intestine. It belongs to the Psednos christinae species–group, but differs from all other species in this group by having a larger eye (35.7% of head length), heavily pigmented gastrointestinal duct, pectoral girdle structure, and a combination of other characters. (Ref. 138155).
Body shape (shape guide): elongated; Cross section: oval.
Probably a mesopelagic species (exact bathymetric range remains uncertain),collected using a non-closing bottom trawl (Ref. 138155),
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Prokofiev, A. M. and A.M. Orlov, 2025. A new species of the genus Psednos (Teleostei: Liparidae) from the Emperor Seamount Chain and the first record of this genus from the northwestern Pacific Ocean. Zoosystematica Rossica 34(2):272-278. (Ref. 138155)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
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Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00525 (0.00237 - 0.01161), b=3.15 (2.96 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Kwetsbaarheid van de visserij (Ref.
59153): Low vulnerability (10 of 100).
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