Elasmobranchi (squali e razze) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: Raja: Latin, raja, -ae = a sting ray (Raja sp.) (Ref. 45335).
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino demersale; distribuzione batimetrica ? - 300 m (Ref. 4426). Subtropical; 46°N - 30°N, 8°W - 36°E
Eastern Atlantic: known only from the Mediterranean but may penetrate through the Strait of Gibraltar and possibly to northern Morocco. Some Atlantic records probably misidentifications of Raja naevus and/or Raja africana.
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 70.0 cm TL maschio/sesso non determinato; (Ref. 4426)
Range from coastal waters to about 300 m depth (Ref. 3167). Feed on all kinds of bottom animals (Ref. 3167). 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). About 80-154 eggs are laid by an individual in a year (Ref. 41305).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Spawns throughout the year with maximum number of egg-cases laid in late spring and summer, embryos developing in about 4 months (Ref. 3167). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205).
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)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: commerciale
Strumenti
Rapporti speciali
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Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00339 (0.00215 - 0.00535), b=3.19 (3.06 - 3.32), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245). |
Livello trofico (Fonte Biblio. 69278) |
3.7 ±0.54 se; based on food items. |
Resilienza (Fonte Biblio. 120179) |
Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (Fec=80). |
Vulnerabilità della pesca (Ref. 59153) |
Moderate to high vulnerability (50 of 100). 🛈 |
Categoria di prezzo (Ref. 80766) |
Medium.
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Nutrienti (Ref. 124155) |
Calcium = 27.4 [5.4, 126.2] mg/100g; Iron = 0.815 [0.213, 2.369] mg/100g; Protein = 18.6 [15.3, 21.6] %; Omega3 = 0.723 [0.220, 2.585] g/100g; Selenium = 24.6 [7.1, 73.7] μg/100g; VitaminA = 9.78 [3.77, 24.88] μg/100g; Zinc = 0.587 [0.285, 1.067] mg/100g (wet weight); |