Glyptocephalus zachirus Lockington, 1879

Rex sole
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Glyptocephalus zachirus
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

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 Ecology

Marine; demersal; depth range 0 - 900 m (Ref. 50610), usually 61 - 500 m (Ref. 2850).   Temperate; 65°N - 28°N, 155°E - 115°W

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

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)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 87-110; Anal spines: 0; Anal soft rays: 78 - 93; Vertebrae: 62 - 65. Dorsal origin above middle of upper eye. Posterior margin of caudal like a 'V'. Pectoral on eyed side greatly elongated.

Biology     Glossary (e.g. epibenthic)

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).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Amaoka, Kunio | Collaborators

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. 119314)

  Not Evaluated 

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: commercial
FAO(fisheries: production; publication : search) | FishSource | Sea Around Us

More information

Countries
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Eggs
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Tools

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Special reports

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Summary page | Point data | Common names | Photos

Internet sources

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | RFE Identification | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 1 - 7.5, mean 3.7 (based on 619 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00537 (0.00334 - 0.00863), b=3.11 (2.98 - 3.24), 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. 69278):  Low, minimum population doubling time 4.5 - 14 years (tm=3-6; tmax=27).
Prior r = 0.06, 95% CL = 0.04 - 0.10, Based on 1 stock assessment.
Vulnerability (Ref. 59153):  High vulnerability (65 of 100) .
Price category (Ref. 80766):   High.