Bathyraja abyssicola (Gilbert, 1896)
Deep-sea skate
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| Native range | All suitable habitat | Point map | Year 2050 |
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| This map was computer-generated and has not yet been reviewed. |
| Bathyraja abyssicola AquaMaps Data sources: GBIF OBIS |
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No image available for this species;
drawing shows typical species in Arhynchobatidae.
Google afbeelding
drawing shows typical species in Arhynchobatidae.
Classificatie / Namen Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii (haaien en roggen) (sharks and rays) > Rajiformes (Skates and rays) > Arhynchobatidae (Softnose skates)
Etymology: Bathyraja: Greek, bathys = deep + Latin, raja, -ae = a ray (Raja sp) (Ref. 45335); abyssicola: From the Latin 'abyssos' meaning bottomless and 'cola' meaning living at depths; referring to its deep-sea habitat.
More on author: Gilbert.
Etymology: Bathyraja: Greek, bathys = deep + Latin, raja, -ae = a ray (Raja sp) (Ref. 45335); abyssicola: From the Latin 'abyssos' meaning bottomless and 'cola' meaning living at depths; referring to its deep-sea habitat.
More on author: Gilbert.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied Ecologie
marien bathydemersaal; diepte 362 - 2910 m (Ref. 50610). Deep-water
Verspreiding Gebieden | FAO regio's | Ecosystemen | Voorkomen | Verspreidingskaart | Introducties | Faunafri
North Pacific: Bering Sea; south to the Galapagos Islands, west to Japan.
Lengte bij maturiteit / Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - 147 cm
Max length : 135 cm TL mannelijk / geslacht onbekend; (Ref. 126515); 157.0 cm TL (female)
Max length : 135 cm TL mannelijk / geslacht onbekend; (Ref. 126515); 157.0 cm TL (female)
Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie
This large, rhomboidal skates (to at least 157 cm TL) have a triangularly shaped disc (width 44.2-63.7% TL), long head length (19.7-27.8% TL), and with rounded pectoral apices; claspers are very long and slender, the tips conspicuously bulbous, large and wide pseudosiphon present, length 20.0% of clasper, with a distinct, curved pseudorhipidion, the inner surface with a defined V-shaped cleft; ventral lobe with a rounded projection; teeth in 27-39 rows on upper jaw, 24-34 rows on lower jaw; pectoral radials 82; pelvic fins 19; total vertebrae 139; the dorsal and ventral surface of disc with prickly dermal denticles and with thorns on dorsal surface of disc, the males with a well-developed alar thorns, no malar thorns, middorsal thorns weak or absent (0-2), the scapulars often none, nuchal thorns strong (2-4), tail thorns moderate (15-30), down the length of tail, interdorsals are weak or obsolete (0-1). Colouration: dorsal dark brown or black-grey, sometimes with small dark blotches scattered on body, the pectoral fin edges are darker than the rest of body, pelvic fins often with whitish anterior tips while ventral is darker than dorsal surface, usually white around the mouth, gills, and cloaca (Ref. 126515).
Cross section: flattened.
Cross section: flattened.
This species lives in deep waters, on the upper continental slope and often over fine sediment; reported to have a preference for colder temperatures than its congeners. The size at maturity for males is from 109 to 120 cm TL, for females 145 cm TL; size at birth uncertain, with the smallest free-swimming specimen measured 19 cm TL. Feeds on annelids, cephalopods, crabs, shrimps, and bony fishes, the smaller individuals consume more invertebrates (Ref. 126515). Oviparous. 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). The light golden brown egg cases are large (10.8-11.1 cm TL), with coarse surface due to the rasp-like denticles; with a distinct groove between the lateral keel and the case (absent in all other ENP skate egg cases) and with horns at the corners, the anterior horns more robust than posteriors, with both sets becoming flat and thread-like at tips (Ref. 126515).
Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Oviparous, 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).
Hoofdreferentie
Upload uw referenties | Referenties | Coördinator : McEachran, John | Medewerkers
Knuckey, J.D.S. and D.A. Ebert, 2022. A taxonomic revision of Northeast Pacific softnose skates (Rajiformes: Arhynchobatidae: Bathyraja Ishiyama). Zootaxa 5142(1):1-89. (Ref. 126515)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Niet bedreigd (LC) ; Date assessed: 18 September 2023
CITES
Not Evaluated
Gevaar voor de mens
Harmless
Gebruik door de mens
FAO - Publication: search | FishSource |
Meer informatie
Trofische ecologie
Voedsel (prooien)
Dieetsamenstelling
Voedselconsumptie
Voedselrantsoenen
Predatoren
Voedsel (prooien)
Dieetsamenstelling
Voedselconsumptie
Voedselrantsoenen
Predatoren
Ecologie
Ecologie
Ecologie
Populatiedynamica
Groeiparameters
Max. leeftijden / maten
Lengte-gewicht rel.
Lengte-lengte rel.
Lengtefrequenties
Massaconversie
Rekrutering
Abundantie
Groeiparameters
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Lengte-gewicht rel.
Lengte-lengte rel.
Lengtefrequenties
Massaconversie
Rekrutering
Abundantie
Levenscyclus
Voortplanting
Maturiteit
Rijpheid/kieuwen rel.
Fecunditeit
Paaien
Paaibestanden
Eieren
Ontwikkeling van de eieren
Larven
Larvale populatiedynamiek
Voortplanting
Maturiteit
Rijpheid/kieuwen rel.
Fecunditeit
Paaien
Paaibestanden
Eieren
Ontwikkeling van de eieren
Larven
Larvale populatiedynamiek
Anatomie
Kieuwoppervlak
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Fysiologie
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Voedingsstoffen
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Type zwemmen
Zwemsnelheid
Visuele pigmenten
Vis geluid
Ziekten en parasieten
Toxiciteit (LC50)
Lichaamssamenstelling
Voedingsstoffen
Zuurstofverbruik
Type zwemmen
Zwemsnelheid
Visuele pigmenten
Vis geluid
Ziekten en parasieten
Toxiciteit (LC50)
Genetica
genoom
Genetica
Heterozygositeit
Erfelijkheid
Genetische diversiteit
genoom
Genetica
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Genetische diversiteit
Menselijk gerelateerd
Aquacultuursystemen
Aquacultuurprofielen
Kweeklijnen
Ciguatera gevallen
Postzegels, munten, diversen.
Aquacultuursystemen
Aquacultuurprofielen
Kweeklijnen
Ciguatera gevallen
Postzegels, munten, diversen.
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Schattingen op basis van modellen
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Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00562 (0.00298 - 0.01063), b=3.13 (2.97 - 3.29), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
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Trofisch niveau (Ref. 69278) |
4.1 ±0.7 se; based on size and trophs of closest relatives |
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Weerstandsvermogen (Ref. 120179) |
laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Fec assumed to be <100). |
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Kwetsbaarheid van de visserij (Ref. 59153) |
Very high vulnerability (81 of 100). 🛈 |