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 ? - 100 m (Ref. 55584), usually 3 - 4 m (Ref. 55311). Subtropical; 32°N - 36°S, 99°W - 47°W (Ref. 55311)
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 110 cm TL male/unsexed; (Ref. 40637); common length : 80.0 cm TL male/unsexed; (Ref. 5217); max. published weight: 13.8 kg (Ref. 40637)
Western Atlantic: Florida, USA and the northern Gulf of Mexico to Venezuela; also southern Brazil.
Found on the continental shelves, on muddy or sandy bottoms to about 80 m depth. Feeds on crabs and shrimps, and also bony fishes. Viviparous (with a yolk-sac placenta), with 7 to 14 young in a litter. Size at birth 30 cm.
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. 90363)
CITES (Ref. 94142)
Threat to humans
Fisheries: minor commercial
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
CollaboratorsPicturesStamps, CoinsSoundsCiguateraSpeedSwim. typeGill areaOtolithsBrainsVision
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=0.00151 (0.00090 - 0.00253), b=3.11 (2.96 - 3.26), based on LWR estimates for species & Genus-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.9 ±0.67 se; Based on food items.
Resilience (Ref. 69278
): Very Low, minimum population doubling time more than 14 years (Fec=7).
Vulnerability (Ref. 59153
): High vulnerability (61 of 100) .