You can sponsor this page

Bathyraja spinicauda  (Jensen, 1914)

Spinytail skate
Add your observation in Fish Watcher
Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Bathyraja spinicauda   AquaMaps   Data sources: GBIF OBIS
Upload your photos and videos
Pictures | Google image
Image of Bathyraja spinicauda (Spinytail skate)
Bathyraja spinicauda
Picture by Garazo Fabregat, A.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Rajiformes (Skates and rays) > Arhynchobatidae (Skates)
Etymology: Bathyraja: Greek, bathys = deep + Latin, raja, -ae = a ray (Raja sp) (Ref. 45335).

Environment / Climate / Range Ecology

Marine; bathydemersal; depth range 140 - 1463 m (Ref. 58426), usually 165 - 255 m (Ref. 7251).   Deep-water; ? - 8°C (Ref. 3167), preferred ?; 80°N - 42°N, 70°W - 50°E

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western Atlantic: Greenland side of Davis Strait and off the east coast of Newfoundland, Canada to off Georges Bank. Eastern Atlantic: Barents Sea, Norway, Iceland-Faroes-Shetland Rise and eastern Greenland (Ref. 3167).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 170 cm TL male/unsexed; (Ref. 3167)

Short description Morphology | Morphometrics

Disk without spines, except near edge of pectoral fins in males. Ventral mucous pores not blackish. Tail with middorsal row of large spines. Snout pointed (Ref. 7251). Upper surface pale brown or bluish gray without dark markings. Lower surface white with small sooty blotches irregularly distributed around margins of pectorals, pelvic fins white below. Lower surface of tail white but pale brown rearward (Ref. 6902).

Biology     Glossary (e.g. epibenthic)

An inhabitant of deep, cold water (Ref. 7251). Benthic (Ref. 58426). Feed on all kinds of bottom animals (Ref. 3167). Oviparous (Ref. 50449). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205). Egg capsules are 13.4-16.5 cm long and 8.0-10.2 cm wide (Ref. 41251, 41301).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Oviparous (Ref. 3167). Paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205).

Main reference Upload your references | References | Coordinator : McEachran, John | Collaborators

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)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: of no interest
FAO(Publication : search) | FisheriesWiki | Sea Around Us

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Food consumption
Ration
Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance
References
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion
Collaborators
Pictures
Stamps, Coins
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Special reports

Download XML

Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | Otolith Atlas of Taiwan Fishes | PubMed | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 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):  4.4   ±0.6 se; Based on diet studies.
Resilience (Ref. 69278):  Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).
Vulnerability (Ref. 59153):  Very high vulnerability (87 of 100) .