Elasmobranchii (sharks and rays) >
Rajiformes (Skates and rays) >
Arhynchobatidae (Softnose skates)
Etymology: Bathyraja: Greek, bathys = deep + Latin, raja, -ae = a ray (Raja sp) (Ref. 45335).
More on author: Fowler.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 81 - 313 m (Ref. 27092). Temperate; 40°S - 56°S, 74°W - 55°W
Southeast Pacific and Southwest Atlantic: Valdivia and Estrecho de Magallanes (Chile) to Argentina and the Falkland Islands.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 103 cm TL male/unsexed; (Ref. 119547); max. published weight: 10.7 kg (Ref. 119547)
Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Oviparous, 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)
IUCN Red List Status (Ref. 125652)
Threat to humans
Harmless
Human uses
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Estimates based on models
Preferred temperature (Ref.
123201): 4.7 - 8, mean 6 °C (based on 159 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00603 (0.00315 - 0.01154), b=3.12 (2.96 - 3.28), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 4.1 ±0.64 se; based on food items.
Resilience (Ref.
120179): Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): High vulnerability (62 of 100).
Nutrients (Ref.
124155): Calcium = 13.7 [1.8, 80.0] mg/100g ; Iron = 0.259 [0.046, 0.989] mg/100g ; Protein = 14.9 [13.4, 16.6] % ; Omega3 = 0.736 [0.308, 1.888] g/100g ; Selenium = 13.3 [3.0, 48.3] μg/100g ; VitaminA = 22 [5, 97] μg/100g ; Zinc = 0.377 [0.096, 1.367] mg/100g (wet weight); based on
nutrient studies.