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); mariposa: Name from a Spanish word meaning butterfly, referring to the large yellow patches on the pectoral fins that looks like the shape of butterfly wings..
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin benthopélagique; profondeur 90 - 448 m (Ref. 55500). Temperate
Northeast Pacific: Aleutian Islands.
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 76.0 cm TL mâle / non sexé; (Ref. 55500)
Description synthétique
Morphologie | Morphométrie
This species is a medium-sized skate (maximum 76 cm TL) with a broad disc (width 60.9, 69.2% TL), long snout (12.0-14.3% TL), and moderately long tail (50.7-55.0% TL). It is distinguished by the following characters: claspers are slender, without pseudosiphon, projection extending distally well beyond dorsal lobe, dorsal terminal 1 and ventral terminal cartilages are reduced; teeth on upper jaw 21-31 rows; pectoral radials 76-80; pelvic fins I, 21-24; precaudal vertebrae 31-34, predorsal caudal vertebrae 65-72; dorsal surface of disc with uniformly dense covering of fine denticles, except near the margins; thorns absent from disc, tail thorns weak or obsolete; dorsal surface greenish brown with small dark brown or black blotches and irregular light brown to yellow blotches on disc and tail, large yellowish blotch present on posteromedial surface of each pectoral fin (Ref. 55500).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Stevenson, D.E., J.W. Orr, G.R. Hoff and J.D. McEachran, 2004. Bathyraja mariposa: a new species of skate (Rajidae: Arhynchobatinae) from the Aleutian Islands. Copeia 2004(2):305-314. (Ref. 55500)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Plus d'informations
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Estimates based on models
Preferred temperature (Ref.
123201): 3.4 - 4.5, mean 3.8 °C (based on 12 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 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).
Niveau trophique (Ref.
69278): 3.9 ±0.7 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Faible, temps minimum de doublement de population : 4,5 à 14 années (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (50 of 100).