Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina batypelagisk; djupintervall 37 - 1500 m (Ref. 50610). Deep-water
Western Pacific: Japan. Eastern Pacific: British Columbia, Canada (52°N) to Baja California (27°N), and from Peru (16°S) to Chile (39°S). Also from the southeast Pacific (Ref. 2850).
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Max length : 33.0 cm TL hane/ej könsbestämd; (Ref. 2850)
Short description
Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt): 0; Mjukstrålar i ryggfenan (totalt): 16-18; Taggstrålar i analfenan 0; Mjukstrålar i analfenan: 14 - 16; Ryggkotor: 50 - 52. Branchiostegal rays: 8.
Mesopelagic at 300-900 m (Ref. 58302). Young migrate in association with Cyclothone signata to within 200 m of the surface at night and feed extensively on small crustaceans (Ref. 4525). Oviparous, with large mesopelagic larvae (Ref. 35760).
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)
Threat to humans
Harmless
Human uses
Ytterligare information
MedarbetareBilderStamps, Coins Misc.LjudCiguateraHastighetSimsättGälytaOtolithsHjärnstorlekSyn
Verktyg
Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 0.5 - 7.9, mean 3.5 °C (based on 290 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00407 (0.00154 - 0.01080), b=3.17 (2.95 - 3.39), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.1 ±0.30 se; based on food items.
Generation time: 1.3 ( 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 (Assuming tmax>3).
Fishing Vulnerability (Ref.
59153): Low vulnerability (19 of 100).