Élasmobranches (requins et raies) (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); norrisi: In honor of American zoologist Harry Waldo Norris (1862-1946), Grinnell College (Iowa), who studied the cranial nerves of the Spiny Dogfish Squalus acanthias (See ETYFish).
Eponymy: Dr Harry Waldo Norris (1862–1946) was a zoologist and anatomist who was Professor of Biology and Zoology and Curator of the Museum at Grinnell College, Iowa (1891–1931) and was Research Professor of Zoology (1931–1941), retiring as Emeritus [...] (Ref. 128868), visit book page.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin démersal; profondeur 1 - 100 m (Ref. 55584), usually 3 - 40 m (Ref. 55311). Subtropical; 32°N - 36°S, 99°W - 47°W (Ref. 55311)
Western Atlantic: Florida, USA and the northern Gulf of Mexico to Venezuela; also southern Brazil.
Taille / Poids / Âge
Maturité: Lm ? range ? - ? cm
Max length : 110 cm TL mâle / non sexé; (Ref. 40637); common length : 80.0 cm TL mâle / non sexé; (Ref. 5217); poids max. publié: 13.8 kg (Ref. 40637)
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.
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Viviparous (with a yolk-sac placenta) (Ref. 244). 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)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: intérêt commercial mineur; pêche sportive: oui
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Température préférée (Réf.
123201): 22.6 - 28, mean 25.7 °C (based on 450 cells).
Indice de diversité phylogénétique (Réf.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00170 (0.00097 - 0.00297), b=3.10 (2.95 - 3.25), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Niveau trophique (Réf.
69278): 3.9 ±0.67 se; based on food items.
Résilience (Réf.
120179): Très faible, temps minimum de doublement de population supérieur à 14 ans (Fec=7).
Vulnérabilité de la pêche (Ref.
59153): High to very high vulnerability (66 of 100).
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