Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (haaien en roggen) (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)
Eponymy: The original description has no etymology, but the binomial is not an eponym: it is derived from the Japanese name for the skate, which is keno-ei. (See Zuge for a similar case). (Ref. 128868), visit book page.

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

marien demersaal; oceanodroom (Ref. 51243); diepte 20 - 230 m (Ref. 106604). Temperate

Verspreiding Landen | FAO regio's | Ecosystemen | Voorkomen | Point map | Introducties | Faunafri

Northwest Pacific: Japan, Korea and Taiwan (Ref. 8630). Appears to be confined to the continental shelf off Japan and in the China Seas south to about Xiamen (Ref. 47737).

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturity: L_m ?, range 39 - ? cm
Max length : 57.0 cm TL mannelijk / geslacht onbekend; (Ref. 111281); max. gepubliceerd gewicht: 815.70 g (Ref. 125279)

Bottom-dweller that feeds on invertebrates and bony fish. Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205). Egg capsules are 4.8-6.6 cm long and 2.9-3.7 cm wide (Ref. 41249, 41253, 41298). Depth range given by H. Ishihara (pers.comm. 07/07).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Oviparous, paired eggs are laid mainly at night (Ref. 44760). Batches of eggs are laid in three to six-day interval on sand bottom. Embryos feed solely on yolk (Ref. 50449). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205).

Hoofdreferentie Upload your references | Referenties | Coördinator : McEachran, John | Medewerkers

McEachran, J.D. and K.A. Dunn, 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314)

Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-2)

Kwetsbaar, zie IUCN Rode Lijst (VU) (A2d); Date assessed: 27 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Other (Ref. 10311)

Gebruik door de mens

Visserij: commercieel

FAO - Publication: search | FishSource |

Meer informatie

Trophic ecology
Voedselitems
Dieetsamenstelling
Voedselconsumptie
Food rations
Predatoren

Ecology
Ecologie

Population dynamics
Groeiparameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Lengtefrequenties
Massaconversie
Rekrutering
Abundantie

Life cycle
Voortplanting
Maturiteit
Maturity/Gills rel.
Fecunditeit
Paaien
Spawning aggregations
Eieren
Ontwikkeling van de eieren
Larven
Larvale populatiedynamiek

Distribution
Landen
FAO regio's
Ecosystemen
Voorkomen
Introducties
BRUVS - Videos

Anatomy
Kieuwoppervlak
Brain
Otolith

Physiology
Body composition
Nutrients
Zuurstofverbruik
Zwemtype
Zwemsnelheid
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)

Genetics
Genetica
Heterozygosity
Erfelijkheid

Human related
Aquaculture systems
Aquacultuurprofielen
Kweeklijnen
Ciguatera cases
Stamps, coins, misc.

Outreach
Medewerkers

Taxonomy
Lokale namen
Synoniemen
Morfologie
Morfometrie
Afbeeldingen

References
Referenties

Tools

Speciale rapporten

Bekijk gegevens voor het houden in een aquarium | Bekijk Fact Sheets voor de soort | Bekijk Aquacultuur Fact Sheets

Download XML

Overzichtspagina | Puntgegevens | Lokale namen | Foto's

Internetbronnen

Estimates based on models

Preferred temperature (Ref. 123201): 9.8 - 26, mean 22 °C (based on 123 cells).

Fylogenetische diversiteitsindex (Ref. 82804): PD₅₀ = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00282 (0.00173 - 0.00459), b=3.23 (3.09 - 3.37), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trofisch niveau (Ref. 69278): 3.4 ±0.5 se; based on diet studies.

Weerstandsvermogen (Ref. 120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Fec = 40-150;).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (43 of 100).

Prijsklasse (Ref. 80766): Medium.

Okamejei kenojei (Bürger, 1841)