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).
Environment: milieu / climate zone / depth range / distribution range
Ökologie
seewasser demersal; tiefenbereich 0 - 15 m (Ref. 58018). Subtropical
Western Indian Ocean.
Size / Gewicht / Alter
Maturity: 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).
Life cycle and mating behavior
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | 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 2024-2)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: nicht kommerziell
Tools
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Estimates based on models
Preferred temperature (Ref.
123201): 24.8 - 29.3, mean 27.1 °C (based on 151 cells).
Phylogenetic diversity index (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).
Trophic level (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).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (36 of 100).
Nutrients (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);