New Zealand country information

Common names: Largespine velvet dogfish, Plunket's shark, Roughskin dogfish
Occurrence: native
Salinity: marine
Abundance: common (usually seen) | Ref: Compagno, L.J.V., 1984
Importance: of potential interest | Ref: Compagno, L.J.V., 1984
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Found in waters deeper than 550 m and taken with deepwater longlines and possibly of commercial interest for liver oil and fishmeal (Ref. 247). Found off Kaikoura, 100 miles north of Christchurch (Ref. 89277). Voucher specimen(s) held at the NMNZ (Ref. 5755). Voucher specimen(s) held at the NMNZ (Ref. 5755).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/nz.html
National Fisheries Authority: http://www.fish.govt.nz/
Occurrences: Occurrences Point map
Main Ref: Cox, G. and M. Francis, 1997
National Database:

Common names from other countries

Plunket shark, قرش أُسترالي, 澳大利亚荆鲨, ... more

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) > Somniosidae (Sleeper sharks)
Etymology: Scymnodon: scymnus, an ancient name for some kind of shark, derived from a Greek word meaning young animal, cub or whelp; odon (Gr.), tooth, referring to large, triangular cutting teeth on lower jaw of S. ringens. (See ETYFish); macracanthus: macro-, from makros (Gr.), long or large; acanthus (L.), from akantha (Gr.), thorn, referring to stout, prominent dorsal-fin spines. (See ETYFish).
More on author: Regan.

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

marien bathydemersaal; diepte 219 - 1550 m (Ref. 6871), usually 550 - 732 m (Ref. 247). Deep-water; 50°S - 54°S

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Indo-Pacific: southern distribution, discontinuous across Pacific and Indian Oceans.

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturity: L_m 149.5, range 129 - 170 cm
Max length : 131 cm TL mannelijk / geslacht onbekend; (Ref. 247); 170.0 cm TL (female)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 2; Anale stekels 0; Anale zachte stralen: 0. Dark brown or blackish in color, dorsal fins with fairly prominent fin spines, moderately long snout, lanceolate upper teeth and bladelike lower teeth with short, oblique cusps, stocky body that tapers abruptly from pectoral region, and moderately large tricuspidate and tricarinate lateral trunk denticles (Ref. 247).

A rare species inhabiting lower continental slopes (Ref. 26346), also on insular slopes in large schools near the bottom which are segregated according to size and sex, and feeds on cephalopods and bony fishes (Ref. 247). Up to 36 young in a litter, ths size at birth between 32 and 36 cm (Ref. 247). Used for fishmeal and liver oil (Ref. 6871). Minimum depth from Ref. 247. Ovoviviparous (Ref. 205).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Ovoviviparous (Ref. 26346). Distinct pairing with embrace (Ref. 205).

Hoofdreferentie Upload your references | Referenties | Coördinator | 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)

Onvoldoende gegevens (DD) ; Date assessed: 04 July 2017

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Harmless

Gebruik door de mens

Visserij: van geen belang

FAO(Publication : search) | FishSource |

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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804): PD₅₀ = 0.5313 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00372 (0.00221 - 0.00624), b=3.12 (2.98 - 3.26), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trofisch niveau (Ref. 69278): 4.5 ±0.59 se; based on food items.

Weerstandsvermogen (Ref. 120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Fec assumed to be <100).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (90 of 100).

Scymnodon macracanthus (Regan, 1906)