Dipturus gigas, Giant skate

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Dipturus gigas (Ishiyama, 1958)

Giant skate
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Native range | All suitable habitat | Point map | Year 2050
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Dipturus gigas   AquaMaps   Data sources: GBIF OBIS
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Image of Dipturus gigas (Giant skate)
No image available for this species;
drawing shows typical species in Rajidae.

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: Dipturus: Greek, di = two + Greek, pteryx = fin (Ref. 45335).
Eponymy: Gigas was a giant in Greek mythology, the child of Uranus and Gaea. The name is applied to taxa that are giants of their kind. (Ref. 128868), visit book page.

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

marino batidemersale; distribuzione batimetrica 300 - 1000 m (Ref. 114953). Deep-water; 19°N - 37°N, 121°E - 142°E (Ref. 114953)

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

Northwest Pacific: Japan, the East China Sea, and the Philippines.

Size / Peso / Age

Maturità: Lm ?  range ? - ? cm
Max length : 186 cm TL maschio/sesso non determinato; (Ref. 114953)

Biologia     Glossario (es. epibenthic)

Found on sand-mud bottoms of upper continental and insular slopes (Ref. 41299, Ref. 114953). Feed on invertebrates and bony fishes (Ref. 9908, Ref. 114953). Oviparous. 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 capsules are 22.0-23.5 cm long and 14.0-14.5 cm wide (Ref. 41249, 41253). A male holotype reaches maturity at 135 cm TL, females at 115 cm TL (Ref. 114953).

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

Oviparous (Ref. 9908). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (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)

  Near Threatened (NT) (A2d); Date assessed: 28 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Other (Ref. 10311)





Human uses

FAO - Publication: search | FishSource |

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 | Chiavi di identificazione | 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

Download XML

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 - 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 | Zoological Record

Estimates based on models

Preferred temperature (Fonte Biblio. 123201): 3.6 - 5.6, mean 4.6 °C (based on 132 cells).
Phylogenetic diversity index (Fonte Biblio. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00282 (0.00131 - 0.00604), b=3.25 (3.08 - 3.42), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trophic level (Fonte Biblio. 69278):  4.0   ±0.62 se; based on food items.
Resilienza (Fonte Biblio. 120179):  Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (Assuming fecundity<100).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100). 🛈