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Hexatrygon bickelli Heemstra & Smith, 1980

Sixgill stingray
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Hexatrygon bickelli   AquaMaps   Data sources: GBIF OBIS
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Image of Hexatrygon bickelli (Sixgill stingray)
Hexatrygon bickelli
Picture by Shao, K.T.

Classification / Names Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

Élasmobranches (requins et raies) (sharks and rays) > Myliobatiformes (Stingrays) > Hexatrygonidae (Sixgill stingrays)
Etymology: Hexatrygon: Greek, exa = six + Greek, trygon = the name of a ray; 1749 (Ref. 45335).
Eponymy: David ‘Dave’ Bickell was a South African journalist, formerly the angling correspondent for the ‘Eastern Province Herald’. [...] (Ref. 128868), visit book page.

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

marin bathydémersal; profondeur 350 - 1120 m (Ref. 9906), usually 362 - 1120 m (Ref. 9906). Deep-water; 46°N - 37°S, 16°E - 154°W

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

Indo-Pacific: South Africa eastward to Japan, Australia and the Hawaiian Islands.

Taille / Poids / Âge

Maturity: Lm ?  range ? - ? cm
Max length : 143 cm TL mâle / non sexé; (Ref. 31444); 111.7 cm TL (female)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Épines dorsales (Total) : 0. A bizarre-looking flabby stingray with a long, thick, fleshy snout (Ref. 5578). Dark violet-blue or brownish above, white below (Ref. 5578).

Biologie     Glossaire (ex. epibenthic)

Inhabits soft bottoms of upper continental slopes (Ref. 9906). Feeding habits unknown (Ref. 9906). Minimum depth from Ref. 58018. Probably caught with bottom trawls (Ref. 9906). Maximum length of female from Ref. 84148.

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Smith, M.M. and P.C. Heemstra, 1986. Hexatrygonidae. p. 142-143. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 3966)

Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-2)

  Préoccupation mineure (LC) ; Date assessed: 04 May 2023

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless





Utilisations par l'homme

Pêcheries: sans intérêt
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Trophic ecology
Éléments du régime alimentaire
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Écologie
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Length-weight rel.
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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 | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 4.1 - 10.7, mean 6.6 °C (based on 1209 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 1.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Niveau trophique (Ref. 69278):  3.6   ±0.5 se; based on size and trophs of closest relatives
Résilience (Ref. 120179):  Faible, temps minimum de doublement de population : 4,5 à 14 années (Assuming fecundity<100).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (86 of 100).