Japan country information

Common names: Umagarei
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Also Ref. 6885.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ja.html
National Fisheries Authority: http://www.maff.go.jp/eindex.html
Occurrences: Occurrences Point map
Main Ref: Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984
National Database:

Common names from other countries

Balai du Japon, Platija japonesa, Камбала плоскоголова, ... more

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Pleuronectiformes (Flatfishes) > Pleuronectidae (Righteye flounders) > Pleuronectinae
Etymology: Hippoglossoides: Greek, ippos = horse + Greek, glossa = tongue + Suffix oides = similar to (Ref. 45335).
More on authors: Jordan & Gilbert.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; demersal; oceanodromous (Ref. 51243); depth range 0 - 1050 m (Ref. 6793). Temperate; 51°N - 29°N, 97°E - 90°W (Ref. 54555)

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

North Pacific: Sea of Japan, Sea of Okhotsk, and the Bering Sea along the western coast of America to Pt. Reyes, central California, USA.

Length at first maturity / Size / Weight / Age

Maturity: L_m 34.3, range 28 - ? cm
Max length : 52.0 cm SL male/unsexed; (Ref. 56370); max. published weight: 1.6 kg (Ref. 56370); max. reported age: 27 years (Ref. 55701)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 75 - 85; Anal spines: 0; Anal soft rays: 55 - 68; Vertebrae: 42 - 46. Dorsal origin over anterior part of upper eye. Caudal with small elongation in center. Pectorals rather large with rounded tips.

Found on soft bottom (Ref. 2850). Adults usually below 180 m (Ref. 2850). Feed on clams, worms and crustaceans (Ref. 6885). Taken by shrimp and otter trawls (Ref. 6885).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

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

Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p. (Ref. 2850)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 05 November 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial; gamefish: yes

FAO(Fisheries: production, species profile; publication : search) | FishSource | Sea Around Us

More information

Trophic ecology
Food items
Diet compositions
Food consumptions
Food rations
Predators

Ecology
Ecology
Home ranges

Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances

Life cycle
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Fecundities
Spawnings
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Egg(s)
Egg developments
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Distribution
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Introductions
BRUVS - Videos

Anatomy
Gill areas
Brains
Otoliths

Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Fish sounds
Diseases / Parasites
Toxicities (LC50s)

Genetics
Genetics
Electrophoreses
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Human related
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.

Outreach
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Taxonomy
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References
References

Tools

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Summary page | Point data | Common names | Photos

Internet sources

Estimates based on models

Preferred temperature (Ref. 115969): 5.7 - 11.3, mean 7.6 (based on 24 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00708 (0.00463 - 0.01083), 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): 3.7 ±0.1 se; based on diet studies.

Resilience (Ref. 120179): Low, minimum population doubling time 4.5 - 14 years (tm=1-3; Fec=72,000; tmax=27).

Prior r = 0.48, 95% CL = 0.32 - 0.73, Based on 4 full stock assessments.

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (45 of 100).

Climate Vulnerability (Ref. 125649): Low to moderate vulnerability (28 of 100).

Price category (Ref. 80766): Low.

Hippoglossoides elassodon Jordan & Gilbert, 1880