Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 20 - 1005 m (Ref. 50550), usually 400 - 600 m (Ref. 56390). Temperate
North Pacific: Hokkaido, Japan and Navarin Canyon in the Bering Sea to the Aleutian chain and the Gulf of Alaska.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 21.1 cm TL male/unsexed; (Ref. 56390); max. published weight: 80.00 g (Ref. 56395); max. reported age: 9 years (Ref. 56390)
Dorsal spines (total): 7 - 8; Dorsal soft rays (total): 23 - 24; Anal spines: 0; Anal soft rays: 18 - 21. Body scales with serrated margin posteriorly; usually the ventral scale row present (Ref. 559). Infraorbital and nuchal spines strong; the uppermost spine of preoperculum bifid or trifid (Ref. 559). Enlarged pores along ventral margin of infraorbitals (Ref. 559). Nostril tube black (Ref. 559).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
Special reports
Download XML
Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 1.4 - 3.6, mean 2 °C (based on 77 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00589 (0.00281 - 0.01234), b=3.15 (2.97 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±0.4 se; based on diet studies.
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (11 of 100).
