Elasmobranchi (squali e razze) (sharks and rays) >
Rajiformes (Skates and rays) >
Arhynchobatidae (Softnose skates)
Etymology: Bathyraja: Greek, bathys = deep + Latin, raja, -ae = a ray (Raja sp) (Ref. 45335).
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino batidemersale; distribuzione batimetrica 565 - 1218 m (Ref. 11892). Polar; 48°S - 51°S
Southern Ocean: around the Kerguelen Islands.
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 120 cm TL maschio/sesso non determinato; (Ref. )
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 11.38 cm long and 7.36 cm wide (Ref. 41249).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). 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
Scarica XML
Fonti Internet
Stime basate su modelli
Temperatura preferita (Fonte Biblio.
123201): 1.4 - 2.3, mean 2.1 °C (based on 19 cells).
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00562 (0.00296 - 0.01067), b=3.13 (2.97 - 3.29), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 4.0 ±0.7 se; based on size and trophs of closest relatives
Resilienza (Fonte Biblio.
120179): Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (Fec assumed to be <100).
Vulnerabilità della pesca (Ref.
59153): High to very high vulnerability (72 of 100).
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Vulnerabilità climatica (Ref.
125649): Very high vulnerability (88 of 100).
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Nutrienti (Ref.
124155): Calcium = 3.07 [0.43, 59.53] mg/100g; Iron = 0.25 [0.02, 3.34] mg/100g; Protein = 14.4 [12.6, 16.4] %; Omega3 = 0.401 [0.154, 1.072] g/100g; Selenium = 18 [3, 81] μg/100g; VitaminA = 4.73 [0.33, 64.44] μg/100g; Zinc = 0.241 [0.015, 2.840] mg/100g (wet weight);