Klassifizierung / Names
Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii (Haie und Rochen) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: Raja: Latin, raja, -ae = a sting ray (Raja sp.) (Ref. 45335).
More on authors: Fricke & Al-Hassan.
Issue
The species does not belong to the genus Okamejei, evidenced e.g. by its overall appearance. Due to the lack of an adult male specimen, it is currently placed as incertae sedis in the general genus Raja (Ref. 101518).
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser demersal; tiefenbereich 0 - 15 m (Ref. 58018). Subtropical
Western Indian Ocean.
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 46.0 cm TL Männchen/unbestimmt; (Ref. 13710)
Found in shallow water over soft substrate (Ref. 13710). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).
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)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: nicht kommerziell
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Schätzungen auf der Grundlage von Modellen
Bevorzugte Temperatur (Ref.
123201): 24.8 - 29.3, mean 27.1 °C (based on 151 cells).
Phylogenetischer Diversitätsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00263 (0.00118 - 0.00585), b=3.26 (3.09 - 3.43), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophische Ebene (Ref.
69278): 3.6 ±0.6 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref.
120179): niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (Fec assumed to be <100).
Anfälligkeit der Fischerei (Ref.
59153): Moderate vulnerability (36 of 100).
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Nährstoffe (Ref.
124155): Calcium = 43.4 [6.6, 211.2] mg/100g; Iron = 0.932 [0.247, 2.688] mg/100g; Protein = 18.7 [15.4, 21.8] %; Omega3 = 0.592 [0.171, 2.143] g/100g; Selenium = 12 [3, 41] μg/100g; VitaminA = 13 [4, 38] μg/100g; Zinc = 0.712 [0.330, 1.286] mg/100g (wet weight);