Amblyraja georgiana, Antarctic starry skate : fisheries

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Amblyraja georgiana (Norman, 1938)

Antarctic starry skate
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Native range | All suitable habitat | Point map | Year 2050
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Amblyraja georgiana   AquaMaps   Data sources: GBIF OBIS
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Image of Amblyraja georgiana (Antarctic starry skate)
Amblyraja georgiana
Picture by Reyes, P.

Common names from other countries

Raie étoilée antarctique, Raya estrellada antártica, Скат георгианский, ... more

Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchi (squali e razze) (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)
Etymology: Amblyraja: Greek, amblys = darkness + Latin, raja, -ae = ray (Raja sp.) (Ref. 45335).
Eponymy: This is a toponym referring to the fact that the holotype was caught in the coastal waters of South Georgia and was named after that island. (Ref. 128868), visit book page.
More on author: Norman.

Environment: milieu / climate zone / distribuzione batimetrica / distribution range Ecologia

marino batidemersale; distribuzione batimetrica 20 - 350 m (Ref. 58839). Deep-water; 43°S - 74°S, 48°E - 23°W (Ref. 114953)

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Mappa dei ritrovamenti | Introduzioni | Faunafri

Southeast Pacific: Chile (Ref. 27540). Southern Ocean: around South Georgia Island and on the ridge westward towards Black Rocks. Occasionally seen on the Scotia Ridge.

Size / Peso / Age

Maturità: Lm ?  range ? - ? cm
Max length : 115 cm TL maschio/sesso non determinato; (Ref. 114953)

Biologia     Glossario (es. epibenthic)

Found on continental and insular shelves, as well as upper slopes. Feeds mainly on small benthic invertebrates (Ref. 114953). Oviparous (Ref. 205). Reaches maturity at 80-90 cm TL; birth size at ca. 20 cm TL (Ref. 114953). 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 capsule measures 116.5 mm long and 80.0 mm wide (Ref. 41249). Utilized as fishmeal and possibly not utilized for human consumption due to extreme roughness of its squamation (Ref. 5159).

Life cycle and mating behavior Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve

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). Eggs have horn-like projections on the shell (Ref. 205).

Main reference Upload your references | Bibliografia | Coordinatore : McEachran, John | Collaboratori

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)

IUCN Red List Status (Ref. 130435: Version 2025-1)

  Data deficient (DD) ; Date assessed: 08 February 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Pesca: pesca di sussistenza
FAO - pesca: landings; Publication: search | FishSource | Sea Around Us

Informazioni ulteriori

Trophic ecology
Food items (preys)
Alimentazione
Consumo di cibo
Food rations
Predatori
Ecologia
Ecologia
Home ranges
Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Reclutamento
Abbondanza
Life cycle
Riproduzione
Maturità
Maturity/Gills rel.
Fecundity
Deposizione
Spawning aggregations
Uova
Egg development
Larve
Dinamica popolazioni larvali
Distribuzione
Stati
Aree FAO
Ecosystems
Presenze
Introduzioni
BRUVS - Videos
Anatomy
Area branchiale
Brain
Otolith
Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genetica
Genome
Genetica
Heterozygosity
Ereditarietà
Human related
Aquaculture systems
Profili di acquacoltura
Varietà
Ciguatera cases
Stamps, coins, misc.
Outreach
Collaboratori
Taxonomy
Nomi Comuni
Sinonimi
Morfologia
Morfometria
Immagini
Bibliografia
Bibliografia

Strumenti

E-book | Giuda pratica | Generatore frequenze di lunghezza | Strumento Parametri Biologici | Mappa dei ritrovamenti | Catch-MSY |

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Summary page | Point data | Nomi Comuni | Photos

Fonti Internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Genere, Specie | DiscoverLife | ECOTOX | FAO - pesca: landings; Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, ricerca | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Fonte Biblio. 123201): -1.4 - 0.5, mean -0.6 °C (based on 28 cells).
Phylogenetic diversity index (Fonte Biblio. 82804):  PD50 = 0.5039   [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).
Trophic level (Fonte Biblio. 69278):  4.2   ±0.3 se; based on size and trophs of closest relatives
Resilienza (Fonte Biblio. 120179):  Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (Assuming tm>5).
Fishing Vulnerability (Ref. 59153):  High to very high vulnerability (69 of 100). 🛈
Climate Vulnerability (Ref. 125649):  Moderate vulnerability (38 of 100). 🛈
Price category (Ref. 80766):   High.
Nutrients (Ref. 124155):  Calcium = 3.68 [0.60, 74.79] mg/100g; Iron = 0.312 [0.029, 4.166] mg/100g; Protein = 15.5 [13.4, 17.5] %; Omega3 = 0.393 [0.157, 0.959] g/100g; Selenium = 13.2 [2.4, 63.8] μg/100g; VitaminA = 6.56 [0.48, 84.64] μg/100g; Zinc = 0.219 [0.014, 2.548] mg/100g (wet weight);