Elasmobranchii (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Triakidae (Houndsharks) > Triakinae
Etymology: Mustelus: Latin for weasel, an ancient name for sharks, possibly referring to the pointed snouts, swift movements and/or rapacious feeding behavior of smaller predatory sharks [strictly not tautonymous with Squalus mustelus Linnaeus 1758 since type was designated by the ICZN] (See ETYFish); dorsalis: Latin for “of the back,” referring to “projection of the posterior angle of the first dorsal fin to the vertical of the origin of the ventrals” (See ETYFish).
More on author: Gill.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 20 - 200 m (Ref. 96339). Tropical; 20°N - 5°S
Eastern Pacific: southern Mexico to Peru.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 43 - ? cm
Max length : 64.0 cm male/unsexed; (Ref. 9253)
An inshore bottom-dwelling shark found on the continental shelves. Feeds primarily on shrimps and probably other crustaceans. Viviparous (with a yolk-sac placenta), with 4 young in a litter. Size at birth, 21 to 23 cm.
Viviparous, with a yolk-sac placenta (Ref. 244).
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. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Fisheries: minor commercial
Tools
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Estimates based on models
Preferred temperature (Ref.
123201): 14.8 - 26, mean 16.6 °C (based on 31 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00224 (0.00104 - 0.00482), b=3.14 (2.97 - 3.31), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.6 ±0.55 se; based on food items.
Resilience (Ref.
120179): Very Low, minimum population doubling time more than 14 years (Fec=4).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (79 of 100).
Nutrients (Ref.
124155): Calcium = 36.2 [10.6, 179.4] mg/100g; Iron = 0.511 [0.153, 1.851] mg/100g; Protein = 20.7 [18.4, 23.0] %; Omega3 = 0.0958 [, ] g/100g; Selenium = 72.1 [21.3, 262.4] μg/100g; VitaminA = 18.2 [6.7, 48.0] μg/100g; Zinc = 1.12 [0.50, 2.28] mg/100g (wet weight);
