Elasmobranchii (sharks and rays) > Rajiformes
(Skates and rays) > Arhynchobatidae
Etymology: Bathyraja: Greek, bathys = deep + Latin, raja, -ae = a ray (Raja sp) (Ref. 45335); lindbergi: Named for Dr. G. U. Lindberg, for his work on western North Pacific zoogeography (Ref. 75535).
Environment / Climate / Range
Marine; demersal; depth range ? - 2000 m (Ref. 96339), usually 200 - ? m (Ref. 43939). Temperate, preferred ?
North Pacific: Sea of Okhotsk off Hokkaido, Japan to the Bering Sea.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 60.7 cm WD male/unsexed; (Ref. 75535); 53.2 cm WD (female)
Morphology | Morphometrics
Vertebrae: 113 - 117. This species is distinguished from its congeners Bathyraja in having a whitish brown coloration on the ventral surface of the disk, contrasting the dark greyish brown on other parts; scapular spine absent; row of middorsal spines uninterrupted, running from before scapular arch to first dorsal (Ref. 75535).
Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205). Depth range given by H. Ishihara (pers.comm. 07/07).
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. 109396)
CITES (Ref. 94142)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00501 (0.00255 - 0.00986), b=3.14 (2.98 - 3.30), based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 4.0 ±0.7 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).
Prior r = 0.09, 2 SD range = 0.01 - 0.57, log(r) = -2.41, SD log(r) = 0.91, Based on: 1 K, 1 tmax, 1 Fec records
Vulnerability (Ref. 59153
): Very high vulnerability (76 of 100) .