Elasmobranchii (hajar och rockor) (sharks and rays) >
Rajiformes (Skates and rays) >
Arhynchobatidae (Softnose skates)
Etymology: Bathyraja: Greek, bathys = deep + Latin, raja, -ae = a ray (Raja sp) (Ref. 45335).
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina djupbottenlevande; djupintervall 2400 - 2950 m (Ref. 3167). Deep-water; 47°N -
Northeast Atlantic: known from 3 specimens from the northern Bay of Biscay but distribution no doubt wider.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 160 cm TL hane/ej könsbestämd; (Ref. 3167)
A very rare species found on lower parts of continental slope and on adjacent deep-sea plains (Ref. 3167). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Oviparous (Ref. 3167). Paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Eggs have horn-like projections on the shell (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)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: saknar intresse
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 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=0.00562 (0.00298 - 0.01063), b=3.13 (2.97 - 3.29), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
3.6 ±0.50 se; based on food items. |
Resiliens (Ref. 120179) |
Låg, lägsta populationsfördubblingstid 4,5-14 år (Fec assumed to be <100). |
Sårbarhet i fisket (Ref. 59153) |
Very high vulnerability (85 of 100). 🛈 |
Näringsämnen (Ref. 124155) |
Calcium = 2.51 [0.35, 50.64] mg/100g; Iron = 0.244 [0.023, 3.282] mg/100g; Protein = 14.1 [12.3, 16.1] %; Omega3 = 0.375 [0.141, 0.985] g/100g; Selenium = 24.8 [4.2, 110.9] μg/100g; VitaminA = 3.62 [0.24, 50.82] μg/100g; Zinc = 0.261 [0.017, 3.236] mg/100g (wet weight); |