Bathyraja mariposa, Butterfly skate

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Bathyraja mariposa Stevenson, Orr, Hoff & McEachran, 2004

Butterfly 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 mariposa   AquaMaps   Data sources: GBIF OBIS
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Image of Bathyraja mariposa (Butterfly skate)
No image available for this species;
drawing shows typical species in Arhynchobatidae.

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (Haie und Rochen) (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 Ökologie

; seewasser benthopelagisch; tiefenbereich 90 - 448 m (Ref. 55500).   Temperate

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Northeast Pacific: Aleutian Islands.

Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 76.0 cm TL Männchen/unbestimmt; (Ref. 55500)

Kurzbeschreibung Morphologie | Morphometrie

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).

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Hauptreferenz Upload your references | Referenzen | Koordinator : McEachran, John | Partner

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)

IUCN Rote Liste Status (Ref. 123251)

  nicht bedroht (LC) ; Date assessed: 31 December 2014

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless





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Estimates based on models

Preferred temperature (Ref. 115969): 3.4 - 4.5, mean 3.8 °C (based on 12 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00513 (0.00254 - 0.01037), b=3.11 (2.94 - 3.28), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.9   ±0.7 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref. 120179):  sehr niedrig, Verdopplung der Population dauert mehr als 14 Jahre. (Preliminary K or Fecundity.).
Verwundbarkeit (Ref. 59153):  High vulnerability (64 of 100) .