Ελασμοβράγχιοι (καρχαρίες και σαλάχια) (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); palumbes: Latin for wood-pigeon or ring-dove, referring to its dove-gray coloration (See ETYFish).
More on author: Smith.
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
Θαλασσινό(ά) βενθικό(ς); εύρος βάθους 0 - 443 m (Ref. 5578). Subtropical; 17°S - 36°S
Southeast Atlantic: Namibia to central Natal, South Africa.
Μέγεθος / Βάρος / Age
Maturity: Lm ? range ? - ? cm
Max length : 120 cm TL αρσενικό/απροσδιόριστο; (Ref. 244)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Ραχιαίες άκανθες (συνολικά) : 0; Εδρικές άκανθες: 0. A smoothhound with lines or scatterings of small white spots along body (Ref. 5578). Grey above, white below (Ref. 5578).
Found on the continental shelf and upper slope from the intertidal region to deeper waters over sand and gravel bottoms (Ref. 244). Feeds on crustaceans, octopi, bony fish, and fish offal (Ref. 5578). Ovoviviparous (Ref. 50449). Catch usually discarded but may be utilized in a local fishery that processes sharks into jerky (Ref. 244).
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
Ovoviviparous, embryos feed solely on yolk (Ref. 50449). 3 to 8 young per litter. Born at around 25 cm. (Ref. 5485). 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 Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
αλιεία: περιορισμένης εμπορικότητας; αλιεία αναψυχής: ναί
Εργαλεία
Special reports
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Διαδικτυακές πηγές
Estimates based on models
Preferred temperature (Ref.
123201): 10.2 - 18, mean 12.8 °C (based on 80 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).
Τροφικό Επίπεδο (Ref.
69278): 3.5 ±0.5 se; based on diet studies.
Ελαστικότητα (Ref.
120179): Πολύ χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού > 14 έτη (Fec=4).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (72 of 100).
Nutrients (Ref.
124155): Calcium = 16.9 [4.9, 85.4] mg/100g; Iron = 0.471 [0.151, 1.782] mg/100g; Protein = 21.6 [19.3, 23.8] %; Omega3 = 0.144 [0.059, 0.331] g/100g; Selenium = 47.4 [14.1, 169.2] μg/100g; VitaminA = 6.61 [2.26, 18.61] μg/100g; Zinc = 0.615 [0.270, 1.252] mg/100g (wet weight);
