Elasmobranchi (squali e razze) (sharks and rays)
(Ground sharks) > Triakidae
(Houndsharks) > Triakinae
Etymology: Mustelus: Latin, mustela, -ae = weasel (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
; marino demersale; oceanodromo (Ref. 54100); distribuzione batimetrica 0 - 860 m (Ref. 26346), usually 0 - 400 m (Ref. 89422). Subtropical; 34°S - 48°S
Southwest Pacific: Kermadec Islands (Ref. 8879) and New Zealand; reported from southern Australia (Ref. 9258).
Length at first maturity / Size / Peso / Age
Maturity: Lm 92.0, range 79 - 100 cm
Max length : 125 cm TL maschio/sesso non determinato; (Ref. 9072); 151.0 cm TL (female); common length : 85.0 cm TL maschio/sesso non determinato; (Ref. 9258)
Found on the insular shelves, often close inshore (Ref. 244). Feeds on crustaceans, especially crabs (Ref. 244). Ovoviviparous (Ref. 50449). Makes seasonal inshore-offshore movements (Ref. 244). Makes extensive coastal migrations, with one tagged female moving at least 1160 km (Ref. 54100). Forms schools separated by size and sex (Ref. 244). Utilized fresh for human consumption (Ref. 244).
Ovoviviparous, embryos feed solely on yolk (Ref. 50449). With 2 to 37 young born at 20-32 cm (Ref. 26346).
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. 120744)
CITES (Ref. 118484)
Threat to humans
Pesca: commerciale; Pesce da pesca sportiva: si
Estimates based on models
Preferred temperature (Ref. 115969
): 8.6 - 18.3, mean 13.7 (based on 370 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00200 (0.00112 - 0.00354), b=3.13 (2.98 - 3.28), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.5 ±0.3 se; Based on diet studies.
Generation time: 10.0 ( na - na) years. Estimated as median LN(3)/K based on 2 growth studies.
Resilienza (Ref. 120179
): Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (tmax=12+; K=0.11-0.16; tm=3-4; Fec=2-23).
Vulnerability (Ref. 59153
): Very high vulnerability (77 of 100) .