Okamejei ornata, Ornate skate : fisheries

Okamejei ornata Weigmann, Stehmann & Thiel, 2015

Ornate skate
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Image of Okamejei ornata (Ornate skate)
Okamejei ornata
Juvenile Photo de Weigmann, S.

Classification / Noms Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

Élasmobranches (requins et raies) (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)
Etymology: ornata: Name from Latin 'ornatus' meaning ornate, for its dorsal color pattern of dark brown spots encircled with beige pigment and arranged into rosettes.

Environnement : milieu / zone climatique / profondeur / gamme de distribution Écologie

marin benthopélagique; profondeur ? - 390 m (Ref. 101518). Tropical

Distribution Territoires | Zones FAO | Écosystèmes | Occurrences | Carte par point | Introductions | Faunafri

Northwestern Indian Ocean: upper slope off Socotra Islands, south of Yemen and east of the Horn of Africa.

Taille / Poids / Âge

Maturité: Lm ?  range ? - ? cm
Max length : 41.8 cm TL mâle / non sexé; (Ref. 101518); 50.9 cm TL (female)

Description synthétique Clés d'identification | Morphologie | Morphométrie

This species is distinguished by the following characters: disc rhombic to evenly inverse heart-shaped (in adult male), with angled outer corners, its body length to mid-vent shorter than tail length from mid-vent; preorbital snout length 13-15% and distance between first gill slits 15-16% of TL; orbits are large, horizontal diameter 1.1-1.4 times interorbital width; young specimens with 1-3 rows of tail thorns, adults 3-5; more than two interdorsal and nuchal thorns; dorsally, it is largely smooth, but snout tip prickly; with growth, dermal denticles also on anterior margins of disc and inner posterior pectorals, as well as ventrally on snout and anterior margins of disc; ventral snout tip blackish, especially in young specimens; dorsal ground color ocher, anterior snout dusky; its dorsal pattern on disc and pelvic fins consisting of variable dark brown spots encircled with beige pigment and arranged into rosettes; ventral pores are few, tiny, and blackish; long interdorsal and postdorsal tail sections, with high posterior part of epichordal caudal lobe and light edged low ventral keel; 37-42 upper tooth, relatively few pectoral fin radials (71-75); clasper without external pseudosiphon and funnel; inner dorsal lobe with components slit, terminal bridge, and 2 clefts; inner ventral lobe with components shield, dike, rhipidion, sentinel, spike, and two sentinas; terminal clasper skeleton with 3 dorsal terminal, 1 ventral terminal, and 2 accessory terminal cartilages; unlike its congener, its ventral terminal is atypically broad distally, the accessory terminal 1 is only slightly Y-shaped, and the dorsal terminal 2 and the terminal bridge are fused; anterior cranial fontanel with clear-cut contour all around and extending about one fifth into rostral shaft length; subrectangular scapulocoracoid, with rear corner sharply marked; large oval anterior fenestra without anterior bridge, one large oval postdorsal and one lower, moderately large oval postventral fenestra; its pelvic girdle with massive ischiopubic bar with weakly convex anterior contour, posterior contour slightly concave in females and juvenile males but deeply concave in semi adult and adult males; prepelvic processes are moderately long, solid, conical, and straight, their length 2.4-2.9 times median thickness of ischiopubic bar (Ref. 101518).
Cross section: flattened.

Biologie     Glossaire (ex. epibenthic)

Cycle de vie et comportement reproducteur Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Référence principale Téléchargez vos références | Références | Coordinateur : McEachran, John | Collaborateurs

Weigmann, S., M.F.W. Stehmann and R. Thiel, 2015. Okamejei ornata n. sp., a new deep-water skate (Elasmobranchii, Rajidae) from the northwestern Indian Ocean off Socotra Islands. Deep-Sea Res. 115:18-29. (Ref. 101518)

Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))

  Préoccupation mineure (LC) ; Date assessed: 09 February 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless





Utilisations par l'homme

Pêcheries: bycatch
FAO - Publication: search | FishSource |

Plus d'informations

Écologie trophique
Aliments (proies)
Composition du régime alimentaire
Consommation alimentaire
Rations alimentaires
Prédateurs
Écologie
Écologie
Dynamique des populations
Paramètres de croissance
Âges / tailles maximales
Longueur-poids rel.
Rel. longueur-longueur.
Fréquences de longueurs
Conversion de masse
Recrutement
Abondance
Cycle de vie
Reproduction
Maturité
Maturité/épines rel.
Fécondité
Frai
Agrégats de frai
Œufs
Développement de l'œuf
Larves
Dynamique des populations larvaires
Distribution
Territoires
Zones FAO
Écosystèmes
Occurrences
Introductions
BRUVS - Vidéos
Anatomie
Surface branchiale
Cerveau
Otolithe
Physiologie
Composition corporelle
Nutriments
Consommation d'oxygène
Type de natation
Vitesse de nage
Pigments visuels
Son de poisson
Maladies et parasites
Toxicité (CL50)
Génétique
génôme
Génétique
Hétérozygotie
Héritabilité
Diversité génétique
Liées à l'homme
Systèmes d'aquaculture
Profils d'aquaculture
Souches
Cas de ciguatera
Timbres, pièces de monnaie, divers
Sensibilisation
Collaborateurs
Taxonomie
Noms communs
Synonymes
Morphologie
Morphométrie
Images
Références
Références

Outils

E-book | Guide de terrain | Générateur de fréquences de longueur | Outil de dynamique de population | Carte par point | Capture-MSY |

Articles particuliers

Maintenance en aquarium | Articles sur l'espèce | Rapports d'aquaculture

Télécharger en XML

Page de résumé | Coordonnées géographiques | Noms communs | Photos

Sources Internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | FishWatcher | CISTI | Catalog of Fishes: Genre, Espèce | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Arbre de Vie | Wikipedia: aller à, chercher | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimations basées sur des modèles

Indice de diversité phylogénétique
(Réf. 82804) 		PD50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00309 (0.00144 - 0.00663), b=3.24 (3.07 - 3.41), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Niveau trophique
(Réf. 69278) 		4.0   ±0.6 se; based on size and trophs of closest relatives
Résilience
(Réf. 120179) 		Faible, temps minimum de doublement de population : 4,5 à 14 années (Preliminary low fecundity).
Vulnérabilité de la pêche
(Ref. 59153) 		Moderate vulnerability (38 of 100). 🛈