Ελασμοβράγχιοι (καρχαρίες και σαλάχια) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Triakidae (Houndsharks) > Triakinae
Etymology: Scylliogaleus: Etymology not explained, presumably a combination of Scyllium and galeus, i.e., a “galeid” shark with “nostrils as in Scyllium” (=Scyliorhinus, Scyliorhinidae). (See ETYFish); quecketti: In honor of London-born conchologist John Frederick Whitlie Quekett (1849-1913), Curator, Durban Museum (South Africa), who provided holotype [Boulenger consistently misspelled Quekett’s name as “Queckett”]. (See ETYFish).
More on author: Boulenger.
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
Θαλασσινό(ά) βενθικό(ς). Subtropical; 27°S - 33°S
Western Indian Ocean: Natal and northeastern Cape in South Africa.
Μέγεθος / Βάρος / Age
Maturity: Lm ? range ? - ? cm
Max length : 89.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 244); 102.0 cm TL (female)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Ραχιαίες άκανθες (συνολικά) : 0; Εδρικές άκανθες: 0. A blunt-nosed houndshark with large, fused nasal flaps, and small, blunt, pebble-like teeth; 2nd dorsal fin as large as 1st (Ref. 5578). Grey above, cream below; newborn with white rear edges on dorsal, anal and caudal fins (Ref. 5578).
Occurs from the surf line to close offshore (Ref. 5578). Feeds mainly on crustaceans (including lobsters), also squid (Ref. 244). Viviparous (Ref. 50449). Caught by rock and surf anglers (Ref. 5578).
Life cycle and mating behavior
Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες
Viviparous, placental (Ref. 50449). With 2 to 4 young in a litter (Ref. 244, 5578). Size at birth about 34 cm (Ref. 244). Gestation period is 9 to 10 months (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)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
αλιεία: παραδοσιακή αλιεία; αλιεία αναψυχής: ναί
Εργαλεία
Special reports
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Διαδικτυακές πηγές
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00240 (0.00110 - 0.00521), b=3.14 (2.96 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 3.6 ±0.5 se; based on diet studies.
Ελαστικότητα (Ref.
120179): Πολύ χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού > 14 έτη (Fec=2).
Fishing Vulnerability (Ref.
59153): High vulnerability (61 of 100).
