Hexanchus griseus, Bluntnose sixgill shark : fisheries, gamefish

Hexanchus griseus (Bonnaterre, 1788)

Bluntnose sixgill shark
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Native range | All suitable habitat | Point map | Year 2050
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Hexanchus griseus   AquaMaps   Data sources: GBIF OBIS
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Image of Hexanchus griseus (Bluntnose sixgill shark)
Hexanchus griseus
Bild av Murch, A.

Klassificering / Namn Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (hajar och rockor) (sharks and rays) > Hexanchiformes (Frill and cow sharks) > Hexanchidae (Cow sharks)
Etymology: Hexanchus: hex (Gr.), six; anchus, etymology unclear, perhaps anchos (Gr.), choke or throttle, referring to how six gill openings of H. griseus extend down onto the throat (See ETYFish); griseus: Medieval Latin for gray, reflecting the French vernacular “Le Griset,” referring to its dark-gray coloration (See ETYFish).
More on author: Bonnaterre.

Miljö: miljö / Klimatzon / djupintervall / distributionsområde Ekologi

marina djupbottenlevande; havsvandrande (Ref. 87829); djupintervall 0 - 2500 m (Ref. 132203), usually 180 - 1100 m (Ref. 45445). Subtropical; 6°C - 10°C (Ref. 125614); 65°N - 48°S, 180°W - 180°E

Utbredning Territorier | FAO områden | Ekosystem | Förekomster | Prickkarta | Utplanteringar | Faunafri

Circumglobal with patchy distribution and possibly absent from Arctic and Antarctic. Highly migratory species.

Längd vid första mognad / Storlek / Vikt / Ålder

Könsmognad: Lm 441.0, range 400 - 482 cm
Max length : 600 cm TL hane/ej könsbestämd; (Ref. 124786); common length : 300 cm TL hane/ej könsbestämd; (Ref. 5217); publicerad maxvikt: 590.0 kg (Ref. 27436)

Kort beskrivning Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 0; Taggstrålar i analfenan: 0. A heavily-bodied, broad-headed sixgill shark, mouth ventral with 6 rows of lower, bladelike, comb-shaped teeth on each side (Ref. 247). Snout broadly rounded, body fusiform (Ref. 6871). Anal fin smaller than dorsal fin (Ref. 6871). Brown or grey above, paler below, with a light stripe along side (Ref. 26346). Fins with white edges (Ref. 6574). Live specimens with fluorescent green eyes (Ref. 6871). Six gill slits are very long (Ref. 35388).
Body shape (shape guide): elongated.

Biologi     Ordlista (t.ex. epibenthic)

Depth range reported at 0m-2500m (Ref. 125614). A deepwater species of the outer continental and insular shelves and upper slopes (Ref. 6871, 75154), islands, seamounts and mid-ocean ridges (Ref. 125614). Near bottom, occasionally pelagic, adults usually below 91 m (Ref. 58302). Juveniles may be found close inshore (Ref. 6871), while nursery areas are in very shallow waters (Ref. 125614). Found on the bottom by day, moving to the surface at night to feed, and where it may take longlines set for other species (Ref. 45445). Depth distribution related to growth and temperature, with juveniles having most shallow records and from colder, poleward regions (Ref. 58302). Generally occurs at a bottom temperature of 6 to 10°C (Ref. 125614). Feeds on a wide range of marine organisms, including other sharks, rays, chimaeras, bony fish, squids, crabs, shrimps, carrion, and even seals (Ref. 26969). Large sharks (at least 2m) take cetaceans and seals. Viviparous, very large litters of 47-108 pups (Ref. 125614). Give birth to almost 100 young (Ref. 35388). Young and adults may be segregated, with the young using inshore nursery grounds. Possibly long-lived (Ref. 125614). Is a eurytrophic predator that is capable of exploiting a wide range of prey species and habitats (Ref. 26969). A vertical migrant, it may sit on the bottom by day, and rise to the surface at night to feed (Ref. 247). It occurs alone or in groups. Adults are more sensitive to light than the juveniles and less seen in clear shallow waters, but more prevalent at night or areas with dense plankton blooms (Ref. 125614). It is locally common in bycatch and target fisheries for food, fishmeal and oil, and in sports fisheries, but vulnerable to overfishing and requires careful management (Ref. 125614). Marketed fresh, frozen, or dried salted (Ref. 247). Not known to have attacked people without provocation (Ref. 247).

Livscykel och parningsbeteende Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver

Viviparous, very large litters of 47-108 pups (Ref. 125614). Size at birth 60-75 cm (Ref. 26346). Distinct pairing with embrace (Ref. 205).

Huvudreferens Ladda upp dina referenser | referenser | Koordinator : Compagno, Leonard J.V. | Medarbetare

Ebert, D.A., S. Fowler and M. Dando, 2021. Sharks of the world: A complete guide. Princeton (NJ, USA): Princeton University Press, 607 p. (Ref. 125614)

Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))

  Near Threatened (NT) (A2bd); Date assessed: 21 November 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Hot mot människor

Other (Ref. 4690)





Mänskliga användningsområden

Fiskeri: kommersiell; sportfisk: ja
FAO - fiskeri: artprofil, landings search; Publication: search | FIRMS - Stock assessments | FishSource | Havet omkring oss

Ytterligare information

Trofisk ekologi
Livsmedelsartiklar (preys)
Födosammansättning
Födointag
Matransoner
Predatorer
Ekologi
Ekologi
Populationsdynamik
Tillväxtparametrar
Max. åldrar / storlekar
Längd-vikt rel.
Längd-längd rel.
Längd-frekvenser
Massakonvertering
Rekrytering
Abundans
Livscykel
Reproduktion
Könsmognad
Mognad/Gills rel.
Fekunditet
Lek
Lekande aggregat
Ägg
Utveckling av ägg
Larver
Larvdynamik
Utbredning
Territorier
FAO områden
Ekosystem
Förekomster
Utplanteringar
BRUVS - Videor
Anatomi
Gälyta
Hjärna
Otolit
Fysiologi
Kroppssammansättning
Näringsämnen
Syreförbrukning
Typ av simning
Simhastighet
Visuella pigment
Ljud från fisk
Sjukdomar & Parasiter
Toxicitet (LC50)
Genetik
Genom
Genetik
Heterozygositet
Ärftlighet
Genetisk mångfald
Människorelaterad
Vattenbrukssystem
Vattenbruksprofiler
Avelslinjer
Ciguatera-fall
Frimärken, mynt, diverse.
Uppsökande verksamhet
Medarbetare
Taxonomi
Populärnamn
synonymer
Morfologi
Morfometri
Bilder
referenser
referenser

Verktyg

E-bok | Fälthandbok | Bestämningsnycklar | Längdfördelnings-verktyg | Livshistorie-verktyg | Prickkarta | Fångst-MSY |

Särskilda rapporter

Kontrollera för underhåll av akvarium | Kontrollera om det finns faktablad om arter | Kontrollera om det finns faktablad om vattenbruk

Ladda ner XML

Sammanfattande sida | Punktdata | Populärnamn | foton

Internet-källor

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Släkte, Arter | DiscoverLife | DORIS | ECOTOX | FAO - fiskeri: artprofil, landings search; Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | Nationella databaser | OceanAdapt | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, sök | World Records Freshwater Fishing | Zoologiskt register

Uppskattningar baserade på modeller

Index för fylogenetisk mångfald
(Ref. 82804) 		PD50 = 0.6641 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00081 (0.00049 - 0.00134), b=3.23 (3.08 - 3.38), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trofisk nivå
(Ref. 69278) 		4.5   ±0.2 se; based on diet studies.
Resiliens
(Ref. 120179) 		Låg, lägsta populationsfördubblingstid 4,5-14 år (Fec= 22-108).
Sårbarhet i fisket
(Ref. 59153) 		Very high vulnerability (81 of 100). 🛈
Sårbarhet för klimatet
(Ref. 125649) 		Moderate vulnerability (38 of 100). 🛈
Priskategori
(Ref. 80766) 		Unknown.
Näringsämnen
(Ref. 124155) 		Calcium = 8.75 [2.27, 47.99] mg/100g; Iron = 0.664 [0.163, 2.072] mg/100g; Protein = 19.5 [17.5, 21.5] %; Omega3 = 0.24 [0.10, 0.59] g/100g; Selenium = 79.6 [24.5, 261.1] μg/100g; VitaminA = 3.68 [0.99, 13.90] μg/100g; Zinc = 0.324 [0.155, 0.615] mg/100g (wet weight);