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); fedorovi: Named in honor of Vladimir Vladimirovich Fedorov, collector of the holotype and well-known Soviet ichthyologist (Ref. 31387).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range 447 - 2025 m (Ref. 50610). Deep-water
Northwest Pacific: Sea of Okhotsk and Pacific coast of Japan.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 73.3 cm TL male/unsexed; (Ref. 31387)
Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).
Dolganov, V.N., 1985. New species of skates of the family Rajdae from the northwestern Pacific Ocean. J. Ichthyol. 25(3):121-132. (Ref. 31387)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Tools
Special reports
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 2.2 - 2.5, mean 2.4 °C (based on 52 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00513 (0.00253 - 0.01042), b=3.12 (2.95 - 3.29), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.9 ±0.7 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (49 of 100).
