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Stomiiformes (Lightfishes and dragonfishes) >
Stomiidae (Barbeled dragonfishes) > Malacosteinae
Etymology: Aristostomias: Greek, aristos = the best + Greek, stoma = mouth (Ref. 45335).
More on author: Gilbert.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina batypelagisk; djupintervall 0 - 1219 m (Ref. 50610). Deep-water; 66°N - 27°N, 180°W - 113°W
Eastern Pacific: southern British Columbia, Canada to central Baja California, Mexico (Ref. 2850), including the Bering Sea (Ref. 35921).
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Max length : 23.0 cm TL hane/ej könsbestämd; (Ref. 2850); rapporterad maxålder: 7 år (Ref. 4525)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 0; Mjukstrålar i ryggfenan (totalt) : 21 - 25; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 25 - 29; Ryggkotor: 54 - 58. Caudal fin small; pelvic fins free of membranes (Ref. 6885). Body and head black; luminous organs attached to head reputed to be colored; barbel bulb pink; subocular red; postocular green (Ref. 6885).
Feed on crustaceans (Ref. 4525). Probably spawn in spring (Ref. 35921). Apparently, undergo diurnal migration (Ref. 35921). Oviparous, with planktonic eggs and larvae (Ref. 35921).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p. (Ref. 2850)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Fiskeri:
Verktyg
Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 4.8 - 9.3, mean 6.5 °C (based on 39 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00407 (0.00157 - 0.01056), b=3.10 (2.88 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.5 ±0.50 se; based on food items.
Generation time: 2.7 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (K=0.40; tmax=7).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (29 of 100).