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Squalus mitsukurii Jordan & Snyder, 1903

Shortspine spurdog
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Squalus mitsukurii   AquaMaps   Data sources: GBIF OBIS
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Fiji country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Also Ref. 85272.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/fj.html
National Fisheries Authority: http://www.spc.org.nc/coastfish/Countries/fiji/fiji.htm
Occurrences: Occurrences Point map
Main Ref: Japan International Cooperation Agency, 1987
National Database:

Common names from other countries

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (haaien en roggen) (sharks and rays) > Squaliformes (Sleeper and dogfish sharks) > Squalidae (Dogfish sharks)
Etymology: Squalus: Genus name from Latin 'squalus' meaning shark (Ref. 6885, 27436).
  More on authors: Jordan & Snyder.

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

marien benthopelagisch; diepte 29 - 600 m (Ref. 58302), usually 48 - 533 m (Ref. 57911).   Deep-water; 8°C - 17°C (Ref. 57911); 45°N - 55°S, 97°W - 164°W (Ref. 54897)

Verspreiding Landen | FAO regio's | Ecosystemen | Voorkomen | Point map | Introducties | Faunafri

Circumglobal in temperate and subtropical waters: Widely distributed in most oceans but possibly consisting of a species complex (Ref. 6871, 31367). Western Indian Ocean: Walters Shoal (MNHN 1991-0406) (Ref. 33390); Eastern Indian Ocean: southern Australia (Ref. 6871); West Pacific: Seamounts in the North Pacific, Japan, Korea, China (and presumably Taiwan and Viet Nam); Southwest Pacific: possibly in New Zealand; Southeast Pacific: Desventuradas Is. and Juan Fernández Is. Southwest Atlantic: Uruguay to Argentina (Ref. 58839). Records of Squalus blainvillei or Squalus fernandinus from the western Indian Ocean, New Caledonia and Chile are based in part on this species. Elsewhere, dogfishes very similar to Squalus mitsukurii are not conspecific with Squalus blainvillei.

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturity: Lm 77.8, range 68 - ? cm
Max length : 89.8 cm TL mannelijk / geslacht onbekend; (Ref. 55642); 94.3 cm TL (female); common length : 76.0 cm TL mannelijk / geslacht onbekend; (Ref. 31367); common length :82 cm TL (female)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 2; Anale stekels: 0. A large dogfish with a long, angular snout and a small mouth slightly more than half the snout length; body without spots; 1st dorsal fin spine over pectoral fins (Ref. 5578). Pearl-grey above, white below; fins with white edges, sides rarely with white spots (Ref. 5578).

Biologie     Verklarende woordenlijst (bv. epibenthic)

Found on the continental and insular shelves and upper slopes (Ref. 247, 75154). Perhaps ranging from 4-740 m (Ref. 58302). Feeds on bony fishes including hake, snoek, conger eels and lantern fishes (Ref. 36731), cephalopods, and crustaceans (Ref. 5213). Ovoviviparous (Ref. 205), with about 4 to 9 pups in a litter (Ref. 247).

Levenscyclus en paargedrag Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven

Ovoviviparous. Probably has 4 to 9 young per litter, most births in autumn, off the east coast of South Africa. There might be a gestation period of up to two years, and sexual segregation of females in the southern part of its range. Size at birth about 22 to 26 cm.

Hoofdreferentie Upload your references | Referenties | Coördinator : Compagno, Leonard J.V. | Medewerkers

Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Bedreigd (EN) (A2d); Date assessed: 21 November 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless




Gebruik door de mens

Visserij: van minder commercieel belang
FAO(visserij: soortsprofiel; publication : search) | FishSource |

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Estimates based on models

Preferred temperature (Ref. 115969): 6.4 - 21.9, mean 14.1 (based on 1219 cells).
Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00282 (0.00169 - 0.00469), b=3.08 (2.93 - 3.23), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trofisch niveau (Ref. 69278):  4.4   ±0.3 se; based on diet studies.
Weerstandsvermogen (Ref. 120179):  Zeer laag, minimale populatieverdubbelingstijd meer dan 14 jaar (Fec=4).
Fishing Vulnerability (Ref. 59153):  High vulnerability (58 of 100).
Prijsklasse (Ref. 80766):   Medium.