Elasmobranquios (tiburones y rayas) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Hemigaleidae (Weasel sharks)
Etymology: Paragaleus: para (Gr.), near, referring to how its dentition is intermediate between Hemigaleus and the triakid Eugaleus (=Galeorhinus) (See ETYFish); pectoralis: Latin for pectoral, allusion not explained, possibly referring to its characteristic falciform pectoral fins (See ETYFish).
More on author: Garman.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
marino demersal; rango de profundidad ? - 100 m (Ref. 5578), usually 30 - 70 m (Ref. 10730). Tropical; 30°N -
Eastern Atlantic: Cape Verde and Mauritania to northern Namibia (Ref. 244, 5578); possibly extending north to Morocco. Record from the Northwest Atlantic, specifically in New England, has not been verified even after an extensive survey of the area has been conducted.
Longitud en la primera madurez / Tamaño / Peso / Edad
Madurez: Lm 82.5, range 75 - 90 cm
Max length : 140 cm TL macho / no sexado; (Ref. 5578); common length : 100.0 cm TL macho / no sexado; (Ref. 26999); peso máximo publicado: 7.2 kg (Ref. 132927)
Descripción breve
Claves de identificación | Morfología | Morfometría
Espinas dorsales (total) : 0; Espinas anales: 0. A slender weasel shark with a moderately long snout, large eyes, and a short, small mouth with small, serrated upper teeth and erect-cusped lower teeth (Ref. 5578). Light grey or bronze with longitudinal yellow stripes, fins plain; white below (Ref. 5578).
Body shape (shape guide): elongated.
A very common inshore to offshore shark of the continental shelf occurring at depths of a few meters to slightly over 100 m (Ref. 244). A specialist feeder that prefers cephalopods, also feeds on small bony fishes (Ref. 244). Viviparous (Ref. 50449). Utilized fresh and dried salted for human consumption, and processed into fishmeal (Ref. 244).
Viviparous (with a yolk-sac placenta), with 1 to 4 young per litter. Size at birth about 47 cm (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)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Harmless
Usos humanos
Pesquerías: comercial
Herramientas
Informes especiales
Descargar XML
Fuentes de Internet
Estimaciones basadas en modelos
Temperatura preferida (Referencia
123201): 17.7 - 25.9, mean 19.9 °C (based on 45 cells).
Índice de diversidad filogenética (Referencia
82804): PD
50 = 0.5664 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00269 (0.00140 - 0.00518), b=3.07 (2.90 - 3.24), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Nivel trófico (Referencia
69278): 4.3 ±0.64 se; based on food items.
Resiliencia (Referencia
120179): Muy bajo, población duplicada en un tiempo mínimo superior a 14 años (Fec=1).
Vulnerabilidad pesquera (Ref.
59153): Very high vulnerability (84 of 100).
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