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Pleuronichthys cornutus (Temminck & Schlegel, 1846)

Ridged-eye flounder
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Pleuronichthys cornutus   AquaMaps   Data sources: GBIF OBIS
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Image of Pleuronichthys cornutus (Ridged-eye flounder)
Pleuronichthys cornutus
Picture by Shao, K.T.

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

Teleostei (teleosts) > Pleuronectiformes (Flatfishes) > Pleuronectidae (Righteye flounders) > Pleuronichthyinae
Etymology: Pleuronichthys: Greek, pleura = side, ribe Greek, ichthys = fish (Ref. 45335);  cornutus: Named for its distribution, which is almost endemic to Japanese waters..
More on authors: Temminck & Schlegel.

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

Marine; demersal; depth range 2 - 170 m (Ref. 56557), usually 100 - ? m (Ref. 84246). Temperate

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

Northwest Pacific: offshore waters around Japan, Korea, China, Taiwan and southern East China Sea.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 30.0 cm SL male/unsexed; (Ref. 559); max. published weight: 1.0 kg (Ref. 56557)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 67 - 81; Anal soft rays: 48 - 58; Vertebrae: 35 - 37. This species is distinguished by the following characters: scale length (from trunk area) is greater than 1.33% of SL, the whole scale outline oval, exposed margin rounded; scales highly deciduous, longitudinal rows occasionally irregular; upper eye area usually greater than that of lower eye, area ratio 0.93–1.44; central longitudinal scales 75-87, scales below lateral line 47-57; abdominal vertebrae 12-13 (mostly 12) (126213).

Biology     Glossary (e.g. epibenthic)

Inhabits sandy and muddy bottoms in coastal areas (Ref. 9137, 11230); but mainly muddy bottoms in offshore deeper (from ca. 40m) waters, possibly due to its highly deciduous scales, it may avoid sandy bottoms. It occurs in lower densities than P. lighti in shallower coastal waters, including the Seto Inland Sea (Ref. 126213). Recorded from several depth ranges from the following localities: 40-60 m off Soma, Fukushima Prefecture; 40-75 m in Kii Channel; ca. 140-150 m off Hamada, Shimane Prefecture; ca. 60 m in Seto Inland Sea; and, 76-143 m in East China Sea. It was also reported from 30 to 140 m in the Kii Channel, being especially numerous from deeper than 100 m (Ref. 84246). The flesh of this species is soft, and the quality declining quickly after death, that the species has a low market value (Ref. 126213).

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

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

Vinnikov, K.A., R.C. Thomson and T.A. Munroe, 2018. Revised classification of the righteye flounders (Teleostei: Pleuronectidae) based on multilocus phylogeny with complete taxon sampling. Molecular phylogenetics and evolution, 125:147-162. (Ref. 122998)

IUCN Red List Status (Ref. 130435)

  Data deficient (DD) ; Date assessed: 15 March 2021

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: commercial
FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet compositions
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Ecology
Ecology
Population dynamics
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Max. ages / sizes
Length-weight rel.
Length-length rel.
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Life cycle
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Maturities
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BRUVS - Videos
Anatomy
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Physiology
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Nutrients
Oxygen consumptions
Swimming type
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Visual pigment(s)
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Diseases / Parasites
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Genetics
Genetics
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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 13.9 - 25.2, mean 20.7 °C (based on 278 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5078   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01479 (0.01035 - 0.02115), b=3.00 (2.90 - 3.10), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trophic level (Ref. 69278):  3.2   ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (K=0.18).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (39 of 100).
Price category (Ref. 80766):   Medium.