Elasmobranchii (sharks and rays) > Rajiformes
(Skates and rays) > Arhynchobatidae
Etymology: Bathyraja: Greek, bathys = deep + Latin, raja, -ae = a ray (Raja sp) (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range - 2300 m (Ref. 75587), usually - m (Ref. ). Deep-water; 0°C - ; 32°S - 44°S, 109°E - 159°E (Ref. 114953)
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Eastern Indian Ocean: SW Australia (Naturalist Plateau), Tasmania and possibly the Lord Howe Rise (Tasman Sea) .
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 123 cm TL male/unsexed; (Ref. 114953)
Known only from three specimens, caught from abyssal depths 2320 - 2800 m (Ref. 114953).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Stehmann, M.F.W., 2005. Bathyraja ishiharai n. sp., a new deep-water skate from the eastern Indian Ocean on the Naturalist Plateau oof southwestern Australia. J. Ichthyol. 45(suppl. 1):39-57. (Ref. 75587)
IUCN Red List Status (Ref. 124695)
Threat to humans
CountriesFAO areasEcosystemsOccurrencesIntroductionsStocksEcologyDietFood itemsFood consumptionRation
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 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
): 4.1 ±0.7 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): High to very high vulnerability (75 of 100) .