Bathyraja spinicauda, Spinytail skate

Bathyraja spinicauda (Jensen, 1914)

Spinytail skate
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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
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Image of Bathyraja spinicauda (Spinytail skate)
Bathyraja spinicauda
Picture by Garazo Fabregat, A.

Classificatie / Names Populaire namen | Synoniemen | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

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

Environment: milieu / climate zone / depth range / distribution range Ecologie

; marien bathypelagisch; diepteverspreiding 140 - 1463 m (Ref. 58426), usually 165 - 255 m (Ref. 7251).   Boreal; ? - 8°C (Ref. 3167); 80°N - 42°N, 70°W - 50°E

Verspreiding Landen | FAO regio's | Ecosystems | Voorkomen | Point map | Introducties | Faunafri

North Atlantic and adjacent Arctic.

Size / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 170 cm TL mannelijk/geslacht niet bekend; (Ref. 3167)

Korte beschrijving Morfologie | Morfometrie

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).

Biologie     Verklarende woordenlijst (b.v. 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 Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

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).

Voornaamste referentie Upload your references | Referenties | Coördinator : McEachran, John | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 120744)

  Bijna bedreigd (NT) ; Date assessed: 05 January 2006

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Harmless





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Estimates based on models

Preferred temperature (Ref. 115969): 0.3 - 7.6, mean 2.5 (based on 411 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00490 (0.00240 - 0.00999), b=3.13 (2.96 - 3.30), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  4.4   ±0.6 se; Based on diet studies.
Weerstandsvermogen (Ref. 120179):  laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Fec assumed to be <100).
Kwetsbaarheid (Ref. 59153):  Very high vulnerability (86 of 100) .