Ελασμοβράγχιοι (καρχαρίες και σαλάχια) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Carcharhinidae (Requiem sharks)
Etymology: Carcharhinus: karcharos (Gr.), sharp or jagged; rhinus, an ancient name for sharks, from rhine (Gr.), rasp, both words alluding to a shark's jagged, rasp-like skin (See ETYFish); galapagensis: -ensis, Latin suffix denoting place: Galapagos Islands, type locality (See ETYFish).
Περιβάλλον: περιβάλλον / κλιματική ζώνη / εύρος βάθους / εύρος διανομής
Οικολογία
Θαλασσινό(ά) Υφαλόφιλο(α); εύρος βάθους 1 - 286 m (Ref. 58302), usually 30 - 180 m (Ref. 37816). Tropical; 36°N - 34°S, 180°W - 180°E (Ref. 55181)
Circumtropical with a preference for waters around oceanic islands. Eastern Atlantic: including St. Paul's Rocks (Refs. 13121, 52289). Western Indian Ocean: including Walter's Shoal, south of Madagascar. Western Pacific: including Middleton and Elizabeth Reefs. Eastern Pacific: Galápagos (Ref. 58896).
Μήκος κατά την πρώτη ωρίμανση / Μέγεθος / Βάρος / Ηλικία
Γεννητική Ωρίμανση: Lm 230.0, range 215 - 245 cm
Max length : 370 cm TL αρσενικό/απροσδιόριστο; (Ref. 1602); common length : 300 cm TL αρσενικό/απροσδιόριστο; (Ref. 9253); μεγ. δημοσιευμένο βάρος: 85.5 kg (Ref. 40637); μεγ. αναφερόμενη ηλικία: 24 έτη (Ref. 31395)
Ραχιαίες άκανθες (συνολικά) : 0; Εδρικές άκανθες: 0. Low inter-dorsal ridge present (Ref.9997). Dark grey above, light below, fins plain or with slightly dusky tips (Ref. 9997).
Body shape (shape guide): fusiform / normal.
A common but habitat-limited tropical shark found close inshore to well as offshore near or on insular or continental shelves (Ref. 244). Prefers clear water with coral and rocky bottoms (Ref. 244). Although a coastal pelagic species, it is capable of crossing considerable distances of open ocean between islands (at least 50 km) (Ref. 244). Juveniles restricted to shallower water, in 25 m or less (Ref. 244; 37816). Found in superficial aggregations (Ref. 244). Tends to feed near the bottom but may take bait from the surface (Ref. 5485). Feeds mainly on bottom fishes, also squid and octopi (Ref. 244). In the Galapagos Is. it preys on sea lions and marine iguanas (Ref. 28023). Inquisitive and sometimes aggressive, displaying a 'hunch' position ( arched back, raised head and lowered caudal and pectoral fins, while twisting and rolling) near divers that may be followed by biting (Ref. 58085). Viviparous (Ref. 50449). 6 to 16 young of 57 to 80 cm are born per litter (Ref. 1602).
Viviparous, with a yolk sac placenta (Ref. 244). 6 to 16 young born at 60-80 cm (Ref. 26346). 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)
Κατάσταση Κόκκινου Καταλόγου IUCN (Ref. 130435: Version 2025-2 (Global))
Απειλή για τον άνθρωπο
Traumatogenic (Ref. 4690)
Ανθρώπινες χρήσεις
αλιεία: περιορισμένης εμπορικότητας; αλιεία αναψυχής: ναί
Εργαλεία
Ειδικές εκθέσεις
Λήψη XML
Διαδικτυακές πηγές
Εκτιμήσεις βάσει μοντέλων
Προτιμώμενη θερμοκρασία (Αναφ.
123201): 15 - 28.2, mean 23.8 °C (based on 1899 cells).
Δείκτης φυλογενετικής ποικιλότητας (Αναφ.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00525 (0.00244 - 0.01130), b=3.07 (2.90 - 3.24), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Τροφικό Επίπεδο (Αναφ.
69278): 4.2 ±0.4 se; based on diet studies.
Generation time: 8.8 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Ελαστικότητα (Αναφ.
120179): Πολύ χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού > 14 έτη (Fec=4).
Ευπάθεια στην αλιεία (Ref.
59153): High to very high vulnerability (73 of 100).
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Θρεπτικά συστατικά (Ref.
124155): Calcium = 3.97 [0.89, 21.70] mg/100g; Iron = 0.329 [0.083, 0.941] mg/100g; Protein = 22.1 [19.2, 24.4] %; Omega3 = 0.0987 [, ] g/100g; Selenium = 46.8 [14.0, 139.5] μg/100g; VitaminA = 39.1 [13.8, 112.6] μg/100g; Zinc = 0.504 [0.236, 0.958] mg/100g (wet weight);
