Environment: milieu / climate zone / depth range / distribution range
Écologie
marin bathypélagique; profondeur 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).
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 33.0 cm TL mâle / non sexé; (Ref. 2850)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 16 - 18; Épines anales: 0; Rayons mous anaux: 14 - 16; Vertèbres: 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
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
Télécharger en XML
Sources Internet
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).
Niveau trophique (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.
Résilience (Ref.
120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Assuming tmax>3).
Fishing Vulnerability (Ref.
59153): Low vulnerability (19 of 100).