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Amblyraja frerichsi (Krefft, 1968)

Thickbody skate
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Image of Amblyraja frerichsi (Thickbody skate)
Amblyraja frerichsi
Female picture by Meneses, P.D.

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) > Rajidae (Skates)
Etymology: Amblyraja: Greek, amblys = darkness + Latin, raja, -ae = ray (Raja sp.) (Ref. 45335).

Issue
Possibly a junior synonym of A. hyperborea due to strong morphological similarity according to Ebert & Stehmann (2013, Ref. 98315) and Weigmann (2016, Ref. 118749) (Ref. 118749).

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

marin bathydémersal; profondeur 600 - 2610 m (Ref. 114953). Deep-water; 30°S - 50°S, 78°W - 51°W (Ref. 114953)

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

Southwest Atlantic: off the mouth of Río de la Plata, Argentina (Ref. 26282, Ref. 114953) and Uruguay (Ref. 58839, Ref. 114953). Possibly Southeast Pacific: Chile (Ref. 27540, Ref. 114953).

Taille / Poids / Âge

Maturity: Lm ?  range ? - ? cm
Max length : 91.0 cm TL mâle / non sexé; (Ref. 114953)

Biologie     Glossaire (ex. epibenthic)

Found on continental slope and upper abyssal plain. Feeds on small benthic invertebrates, adults possibly piscivorous (Ref. 114953). Oviparous (Ref. 50449). Males reaches maturity by ca. 76 cm TL; young hatch at ca. 22 cm TL (Ref. 114953). Produces horny-shelled eggs (Ref. 205).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Eggs have horn-like projections on the shell (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)

  Vulnérable, voir Liste Rouge IUCN (VU) (A2cd); Date assessed: 07 February 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless





Utilisations par l'homme

FAO - Publication: search | FishSource |

Plus d'informations

Trophic ecology
Éléments du régime alimentaire
Diet compositions
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Prédateurs
Ecology
Écologie
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Length-weight rel.
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Références

Outils

E-book | Guide de terrain | Générateur de fréquences de longueur | Outil de dynamique de population | Carte par point | Classification Tree | Catch-MSY |

Articles particuliers

Maintenance en aquarium | Articles sur l'espèce | Rapports d'aquaculture

Télécharger en XML

Page de résumé | Coordonnées géographiques | Noms communs | Photos

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 | Bases de données nationales | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Arbre de Vie | Wikipedia: aller à, chercher | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5010   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00141 - 0.00645), b=3.24 (3.07 - 3.41), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Niveau trophique (Ref. 69278):  4.2   ±0.3 se; based on size and trophs of closest relatives
Résilience (Ref. 120179):  Faible, temps minimum de doublement de population : 4,5 à 14 années (Fec assumed to be <100).
Fishing Vulnerability (Ref. 59153):  High vulnerability (56 of 100).
Nutrients (Ref. 124155):  Calcium = 7.32 [1.45, 37.52] mg/100g; Iron = 0.36 [0.08, 1.12] mg/100g; Protein = 16.7 [13.9, 19.2] %; Omega3 = 0.644 [0.204, 2.385] g/100g; Selenium = 16.5 [4.4, 50.5] μg/100g; VitaminA = 11.9 [2.8, 51.8] μg/100g; Zinc = 0.256 [0.125, 0.482] mg/100g (wet weight);