Teleostei (teleosts) >
Perciformes/Cottoidei (Sculpins) >
Cottidae (Sculpins)
Etymology: Hemilepidotus: Greek, hemi = half + Greek, lepis = scale + Greek, ous, otis = ear (Ref. 45335).
More on author: Bean.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 4 - 320 m (Ref. 50550). Temperate
Arctic: Chukchi Sea. North Pacific: Hokkaido, Japan and Sea of Okhotsk and to Buldir Island in the Aleutian chain.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 45.0 cm FL male/unsexed; (Ref. 115020)
Dorsal spines (total): 11 - 13; Dorsal soft rays (total): 19 - 20; Anal spines: 0; Anal soft rays: 16 - 18. Scales on ventral scale row less than 1/2 the size of those on the dorsal scale row; fin membrane of spiny dorsal well incised; 4 preopercular spines; the 4th simple (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
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): -1.3 - 5.3, mean 0.9 °C (based on 783 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00562 (0.00326 - 0.00971), b=3.10 (2.95 - 3.25), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±0.54 se; based on food items.
Resilience (Ref.
120179): Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (40 of 100).