Teleostei (teleosts) >
Perciformes/Cottoidei (Sculpins) >
Hexagrammidae (Greenlings) > Hexagramminae
Etymology: Hexagrammos: Greek, exa = six + greek, gramma = letter,signal (Ref. 45335).
Eponymy: Keinosuke Otaki (d: 1911) was Professor of English at the Imperial Military Academy of Tokyo for a decade, and a former zoology graduate (1894) student at Stanford University (where Jordan was president). [...] (Ref. 128868), visit book page.
More on authors: Jordan & Starks.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; oceanodromous (Ref. 51243); depth range 139 - 155 m (Ref. 27311). Temperate; 50°N - 26°N, 120°E - 152°E
Northwest Pacific: Japan, the southern Korean Peninsula to the Yellow Sea (Ref. 5590; including the coast of Primorye (Ref. 114081).
Length at first maturity / Size / Weight / Age
Maturity: Lm 19.1 range ? - ? cm
Max length : 57.0 cm TL male/unsexed; (Ref. 40637); max. published weight: 2.4 kg (Ref. 40637)
Occurs in rocky coastal areas; often gather around artificial reefs. Breeds from October to December. The egg masses are attached to small rocks, guarded by the male (Ref. 559 and 637). Commercially cultured in Japan.
Male guards eggs.
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: commercial; gamefish: yes
Tools
Special reports
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 2.1 - 14, mean 5.7 °C (based on 7 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5159 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00479 (0.00200 - 0.01144), b=3.12 (2.91 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.8 ±0.3 se; based on diet studies.
Generation time: 3.2 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (34 of 100).
Nutrients (Ref.
124155): Calcium = 48.2 [20.2, 104.8] mg/100g; Iron = 0.442 [0.199, 0.920] mg/100g; Protein = 17.7 [15.7, 19.7] %; Omega3 = 0.567 [0.256, 1.561] g/100g; Selenium = 18.4 [9.3, 43.0] μg/100g; VitaminA = 16.1 [4.9, 53.8] μg/100g; Zinc = 0.461 [0.309, 0.704] mg/100g (wet weight);
