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Perciformes/Cottoidei (Sculpins) >
Cottidae (Sculpins)
Etymology: Hemilepidotus: Greek, hemi = half + Greek, lepis = scale + Greek, ous, otis = ear (Ref. 45335).
Eponymy: Dr Charles Henry Gilbert (1859–1928) was an ichthyologist and fishery biologist, whose main area of study was Pacific salmon. [...] (Ref. 128868), visit book page.
More on authors: Jordan & Starks.
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
marina bottenlevande; djupintervall 0 - 604 m (Ref. 50550). Temperate; 66°N -
North Pacific: Hokkaido, Japan to the Bering Sea.
Length at first maturity / Size / Vikt / Age
Könsmognad: Lm 26.0, range 24 - 28 cm
Max length : 36.0 cm SL hane/ej könsbestämd; (Ref. 559); common length : 27.0 cm TL hane/ej könsbestämd; (Ref. 56557); publicerad maxvikt: 800.00 g (Ref. 56557); rapporterad maxålder: 12 år (Ref. 56557)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 11 - 12; Mjukstrålar i ryggfenan (totalt) : 20 - 22; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 14 - 19. Three zonal scale rows on body; a scale row of small ctenoid scales under the ventral scale row (Ref. 559). Four preopercular spines, the 2nd longest and simple, the 4th flattened; the first dorsal spine longer than the 2nd (Ref. 559).
Body shape (shape guide): elongated.
Oviparous. Non-copulatory. However according to one study, presence of fertilized eggs in the ovary may have resulted from spermatozoa entering the ovary through the ovarian fluid during spawning, and consequently fertilizing unspawned eggs in the ovaries (Ref. 47168). Fertilized eggs in the ovary develop abnormally however, due to the unavailability of needed elements such as oxygen in the ovary (Ref. 47168).
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 2025-1)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 0.7 - 14.7, mean 3.9 °C (based on 374 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [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).
Trofisk nivå (Ref.
69278): 3.6 ±0.1 se; based on diet studies.
Resiliens (Ref.
120179): Låg, lägsta populationsfördubblingstid 4,5-14 år (tm = 5-6).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (34 of 100).
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![Image of Hemilepidotus gilberti (Gilbert\](/images/thumbnails/jpg/tn_Hegil_u0.jpg "Image of Hemilepidotus gilberti (Gilbert\")
