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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 / depth range / distribution range
Ecologia
marino demersale; distribuzione batimetrica 0 - 604 m (Ref. 50550). Temperate; 66°N -
North Pacific: Hokkaido, Japan to the Bering Sea.
Length at first maturity / Size / Peso / Age
Maturity: Lm 26.0, range 24 - 28 cm
Max length : 36.0 cm SL maschio/sesso non determinato; (Ref. 559); common length : 27.0 cm TL maschio/sesso non determinato; (Ref. 56557); peso massimo pubblicato: 800.00 g (Ref. 56557); Età massima riportata: 12 anni (Ref. 56557)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 11 - 12; Raggi dorsali molli (totale) : 20 - 22; Spine anali: 0; Raggi anali molli: 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).
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 2024-1)
Threat to humans
Harmless
Human uses
Strumenti
Special reports
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Fonti Internet
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).
Trophic level (Ref.
69278): 3.6 ±0.1 se; based on diet studies.
Resilienza (Ref.
120179): Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (tm = 5-6).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (34 of 100).
![Image of Hemilepidotus gilberti (Gilbert\](/images/thumbnails/jpg/tn_Hegil_u0.jpg "Image of Hemilepidotus gilberti (Gilbert\")
