Argentina country information

Common names: Joined-fins skate, Raya Aletas Juntas
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Type locality, off northern Patagonian, INIDEP 719 (holotype of Bathyraja cousseauae, 61.7 cm TL, juvenile male) (Ref. 55502).
National Checklist: Argentina
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ar.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Díaz de Astarloa, J.M. and E. Mabragaña, 2004
National Database:

Common names from other countries

Raya Aletas Juntas, Cousseau süvarai, ... more

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); cousseauae: Named for María Berta Cousseau of Dept. de Ciencias Marinas, Universidad Nacional de Mar del Plata..

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

seewasser demersal; tiefenbereich 119 - 284 m (Ref. 55502). Subtropical

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

Southwestern Atlantic: Off northern Patagonian, off Mar del Plata, Argentina. Southeast Pacific: Chile.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 86.0 cm TL Männchen/unbestimmt; (Ref. 55502)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

This species is distinguished by having the following characters: a large and very distinct round pale area ocellus-like, margined with dark brown on posterior part of each pectoral base of the upper side of the disc; upper surface of disc fully covered with numerous small spinules, also on interorbital area, tail, dorsal fins, and posterior pelvic lobes; larger individuals with scattered spinules distributed in central parts of the disc; ocular thorns absent; continuous row of 21-27 median thorns from nuchal; region to first dorsal fin; males have elongated, slender rod-shaped claspers; dorsal fin densely spinulose close to the end of tail and with no space between them (Ref. 55502).

Life cycle and mating behavior Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven

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

Díaz de Astarloa, J.M. and E. Mabragaña, 2004. Bathyraja cousseauae sp. n.: a new softnose skate from the southwestern Atlantic (Rajiformes, Rajidae). Copeia 2004(2):326-335. (Ref. 55502)

IUCN Rote Liste Status (Ref. 130435)

nicht bedroht (LC) ; Date assessed: 07 February 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

FAO(Publication : search) | FishSource |

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Trophic ecology
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Ecology
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Estimates based on models

Preferred temperature (Ref. 115969): 4.5 - 6.4, mean 5.8 (based on 37 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 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).

Trophic level (Ref. 69278): 4.0 ±0.7 se; based on size and trophs of closest relatives

Widerstandsfähigkeit (Ref. 120179): niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (54 of 100).

Bathyraja cousseauae Díaz, de, Astarloa & Mabragaña, 2004