Actinopterygii (ray-finned fishes) > Scorpaeniformes
(Scorpionfishes and flatheads) > Cottidae
Etymology: Icelus: From Icelus = the Morpheus name; mythology. More on author: Gilbert.
Environment / Climate / Range
Marine; demersal; depth range 20 - 1005 m (Ref. 50550), usually 400 - 600 m (Ref. 56390). Temperate, preferred ?
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)
(total): 7 - 8;
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. 109396)
CITES (Ref. 94142)
Threat to humans
Fisheries: of no interest
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00273 - 0.01600), b=3.17 (2.95 - 3.39), 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. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (41 of 100) .