Elasmobranchii (Haie und Rochen) (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); schmitti: In honor of American biologist Waldo L. Schmitt (1887-1977), curator of marine invertebrates at the U.S. National Museum, who collected holotype. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
Ökologie
seewasser demersal; ozeanodrom (Ref. 51243); tiefenbereich 60 - 195 m (Ref. 27770). Subtropical; 28°S - 45°S, 66°W - 46°W (Ref. 244)
Southwest Atlantic: southern Brazil to northern Argentina.
Length at first maturity / Size / Gewicht / Alter
Maturity: Lm 58.3, range 55 - 62 cm
Max length : 92.0 cm TL Männchen/unbestimmt; (Ref. 57911); common length : 60.0 cm TL Männchen/unbestimmt; (Ref. 6077)
Found on the continental shelf. Feeds on crabs and probably other crustaceans, and presumably small fishes. Ovoviviparous (aplacental) with 2 to 7 pups per litter. Size at birth 26 cm. Utilized for human consumption.
Ovoviviparous, embryos feed solely on yolk (Ref. 50449). 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 Rote Liste Status (Ref. 130435)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: hoch kommerziell
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Estimates based on models
Preferred temperature (Ref.
123201): 4.5 - 14.2, mean 7.9 °C (based on 118 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00257 (0.00165 - 0.00399), b=3.10 (2.97 - 3.23), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.6 ±0.3 se; based on diet studies.
Generation time: 18.0 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
Widerstandsfähigkeit (Ref.
120179): sehr niedrig, Verdopplung der Population dauert mehr als 14 Jahre. (Fec=2-3).
Fishing Vulnerability (Ref.
59153): High vulnerability (58 of 100).
Climate Vulnerability (Ref.
125649): Very high vulnerability (87 of 100).
Nutrients (Ref.
124155): Calcium = 22.3 [6.0, 110.4] mg/100g; Iron = 0.517 [0.160, 1.927] mg/100g; Protein = 21.7 [19.4, 24.0] %; Omega3 = 0.143 [0.059, 0.338] g/100g; Selenium = 38.2 [11.0, 135.0] μg/100g; VitaminA = 7.36 [2.55, 20.30] μg/100g; Zinc = 0.638 [0.282, 1.271] mg/100g (wet weight);
