Elasmobranchii (sharks and rays) > Carcharhiniformes
(Ground sharks) > Triakidae
(Houndsharks) > Triakinae
Etymology: Mustelus: Latin, mustela, -ae = weasel (Ref. 45335).
Environment / Climate / Range
Marine; demersal; depth range 5 - 624 m (Ref. 56504), usually 5 - 50 m (Ref. 244). Temperate, preferred 26°C (Ref. 107945); 58°N - 34°S, 19°W - 36°E
Eastern Atlantic: UK to the Mediterranean, Morocco and Canary Islands; possibly Azores, Madeira, Angola to South Africa; including Indian Ocean coast. Often referred to as Mustelus canis which is restricted to the western Atlantic.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 80 - ? cm
Max length : 200 cm TL male/unsexed; (Ref. 27000); common length : 100.0 cm TL male/unsexed; (Ref. 26999); max. reported age: 24 years (Ref. 30745)
Found on the continental shelves and uppermost slopes, from the intertidal region to at least 350 m depth (Ref. 244). Collected to depth of 624 m in the eastern Ionian Sea (Ref. 56504). Sometimes in midwater but prefers to swim near the bottom (Ref. 244). Feeds mainly on crustaceans, but also cephalopods and bony fishes (Ref. 244). Viviparous, with a yolk-sac placenta (Ref. 244). Taken by shore and ski-boat anglers (Ref. 5578). Utilized for human consumption, oil, and fishmeal (Ref. 244). Sexual maturity is reached at a length of 70-80 cm (Ref. 35388).
Viviparous, with a yolk-sac placenta; 4 to 17 (Ref. 39938) young in a litter. Size at birth about 39 cm. Distinct pairing with embrace (Ref. 205).
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 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
Fisheries: highly commercial; gamefish: yes
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00166 (0.00137 - 0.00201), b=3.15 (3.10 - 3.20), based on LWR estimates for this species (Ref. 93245
Trophic Level (Ref. 69278
): 3.8 ±0.3 se; Based on diet studies.
Resilience (Ref. 69278
): Very Low, minimum population doubling time more than 14 years (K=0.06-0.12; tm=6-15; tmax=24; Fec=4).
Prior r = 0.07, 2 SD range = 0.01 - 0.62, log(r) = -2.66, SD log(r) = 1.09, Based on: 1 K, 5 tgen, 1 tmax, 2 Fec records
Vulnerability (Ref. 59153
): High to very high vulnerability (74 of 100) .