Actinopterygii (ray-finned fishes) > Pleuronectiformes
(Flatfishes) > Pleuronectidae
(Righteye flounders) > Pleuronectinae
Etymology: Glyptocephalus: Greek, glyptes = carver + Greek, kephale = head (Ref. 45335); zachirus: From the Greek za and cheir, meaning 'long'and 'hand' (Ref. 27436).
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 0 - 900 m (Ref. 50610), usually 61 - 500 m (Ref. 2850). Temperate; 65°N - 28°N, 155°E - 115°W
North Pacific: from Kuril Island to Bering Sea coasts of Russia and Alaska (Ref. 27436) to Cedros Island, northern Baja California, Mexico.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 60.0 cm TL male/unsexed; (Ref. 56527); common length : 36.0 cm TL male/unsexed; (Ref. 56527); max. published weight: 2.0 kg (Ref. 56527); max. reported age: 27 years (Ref. 55701)
Morphology | Morphometrics
A slow-growing species found on sand or mud bottoms (Ref. 2850). Usually discarded by trawlers but sometimes processed into fertilizer (Ref. 27436). Flesh considered tasty (Ref. 27436). Utilized fresh and frozen; eaten steamed, fried, microwaved and baked (Ref. 9988).
Cooper, J.A. and F. Chapleau, 1998. Monophyly and intrarelationships of the family Pleuronectidae (Pleuronectiformes), with a revised classification. Fish. Bull. 96(4):686-726. (Ref. 30193)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 118484)
Threat to humans
Estimates based on models
Preferred temperature (Ref. 115969
): 1 - 7.5, mean 3.7 °C (based on 619 cells).
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00513 (0.00318 - 0.00827), b=3.12 (2.98 - 3.26), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.1 se; based on diet studies.
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (tm=3-6; tmax=27).
Vulnerability (Ref. 59153
): High vulnerability (65 of 100) .