Bathyraja maculata, White-blotched skate

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Bathyraja maculata Ishiyama & Ishihara, 1977

White-blotched skate
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Bathyraja maculata   AquaMaps   Data sources: GBIF OBIS
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Image of Bathyraja maculata (White-blotched skate)
Bathyraja maculata
Picture by Orlov, A.

Classification / Names Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

Élasmobranches (requins et raies) (sharks and rays) > Rajiformes (Skates and rays) > Arhynchobatidae (Softnose skates)
Etymology: Bathyraja: Greek, bathys = deep + Latin, raja, -ae = a ray (Raja sp) (Ref. 45335);  maculata: Name from the Latin adjective 'maculata' meaning blotched, referring to the color markings on the dorsal side of the disc..

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

marin bathydémersal; profondeur 70 - 1193 m (Ref. 50610). Deep-water; 59°N - 51°N

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

Northwest Pacific: known from the type locality, the Bering Sea.

Length at first maturity / Taille / Poids / Âge

Maturity: Lm 97.5, range 94 - 101 cm
Max length : 134 cm TL mâle / non sexé; (Ref. 52075); poids max. publié: 8.5 kg (Ref. 56527)

Description synthétique Morphologie | Morphométrie

This species is distinguished from its congeners Bathyraja in having a white blotches of different sizes on the dorsal surface of the disk, lateral folds of tail are broad; clasper has a large pseudosiphon; dense silky fibers covering egg capsule (Ref. 75535).

Biologie     Glossaire (ex. epibenthic)

Holotype taken from a depth of about 450 m (Ref. 26282). Maximum depth based on report for Bering Sea and Aleutian Islands (Ref. 80796). 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). Egg capsules are 10.19 cm long and 6.28 cm wide (Ref. 41249).

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

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).

Référence principale Upload your references | Références | Coordinateur : McEachran, John | Collaborateurs

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)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

  Préoccupation mineure (LC) ; Date assessed: 27 July 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless





Utilisations par l'homme

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Sources Internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | FishWatcher | CISTI | Catalog of Fishes: Genre, Espèce | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: génôme, nucléotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Arbre de Vie | Wikipedia: aller à, chercher | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 1.3 - 3.8, mean 2 °C (based on 27 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00331 (0.00211 - 0.00519), b=3.11 (2.98 - 3.24), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Niveau trophique (Ref. 69278):  4.1   ±0.71 se; based on food items.
Generation time: 30.5 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Résilience (Ref. 120179):  Faible, temps minimum de doublement de population : 4,5 à 14 années (Fec assumed to be <100).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (80 of 100).