Galeorhinus galeus, Tope shark : fisheries, gamefish, aquarium

You can sponsor this page

Galeorhinus galeus (Linnaeus, 1758)

Tope shark
Add your observation in Fish Watcher
Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Galeorhinus galeus   AquaMaps   Data sources: GBIF OBIS
Upload your photos and videos
Pictures | Videos | Google image
Image of Galeorhinus galeus (Tope shark)
Galeorhinus galeus
Picture by SeaFIC

Classification / Names Κοινά ονόματα | Συνώνυμα | Catalog of Fishes(Γένος, Είδη) | ITIS | CoL | WoRMS | Cloffa

Ελασμοβράγχιοι (καρχαρίες και σαλάχια) (sharks and rays) > Carcharhiniformes (Ground sharks) > Triakidae (Houndsharks) > Galeorhininae
Etymology: Galeorhinus: galeo, probably based on G. galeus (see below); rhinus, an ancient name for sharks, from rhine (Gr.), rasp, alluding to their rasp-like skin. (See ETYFish);  galeus: From galeos, a small shark or dogfish per Aristotle (sometimes translated as weasel), possibly referring to the pointed snouts, swift movements and/or rapacious feeding behavior of smaller predatory sharks1. (See ETYFish).
More on author: Linnaeus.

Environment: milieu / climate zone / depth range / distribution range Οικολογία

Θαλασσινό(ά) βενθοπελαγικό; ωκεανόδρομο(ς) (Ref. 51243); εύρος βάθους 0 - 1100 m (Ref. 26346), usually 2 - 471 m (Ref. 43939). Subtropical; 70°N - 58°S, 111°E - 37°E

Κατανομή Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Point map | Εισαγωγές | Faunafri

World-wide in temperate waters (Ref. 58085). Western Atlantic: southern Brazil to Argentina. Eastern Atlantic: Iceland, Norway, Faeroe Islands, British Isles to the Mediterranean and Senegal; Namibia to South Africa (Western Indian Ocean). Western Pacific: Australia and New Zealand. Eastern Pacific: British Columbia (Canada) to southern Baja California, Gulf of California; Peru and Chile. Questionable records in Ivory Coast, Nigerai, Gabon to Congo Dem Rep and Laysan Is. (Hawaii) (Ref 244).

Length at first maturity / Μέγεθος / Βάρος / Age

Maturity: Lm 144.1, range 120 - 185 cm
Max length : 193 cm TL αρσενικό/απροσδιόριστο; (Ref. 40637); 195.0 cm TL (female); common length : 160 cm TL αρσενικό/απροσδιόριστο; (Ref. 9258); μεγ. δημοσιευμένο βάρος: 44.7 kg (Ref. 40637); μεγ. αναφερόμενη ηλικία: 55 έτη (Ref. 6871)

Short description Μορφολογία | Μορφομετρία

Ραχιαίες άκανθες (συνολικά): 0; Μαλακές ραχιαίες ακτίνες (συνολικά): 0; Εδρικές άκανθες 0; Μαλακές εδρικές ακτίνες: 0. A large houndshark with a long, pointed snout, a large mouth, and small blade-like teeth; 2nd dorsal about as large as anal fin and terminal caudal lobe as long as rest of fin (Ref. 5578). Greyish above, white below; young with black markings on fins (Ref. 5578).

Βιολογία     Γλωσσάρι (π.χ. epibenthic)

Mainly demersal on continental and insular shelves, but also on the upper slopes, at depths from near shore to 550 m (Ref. 6871), but has been shown to be pelagic in the open ocean (frequently caught on floating tuna longlines over deep water, and many New Zealand-tagged specimens have been recaptured in Australia) (Ref. 26346). Occurs in small schools that are highly migratory in higher latitudes in their range (Ref. 244). There is pronounced partial segregation by size and sex in some areas (Ref. 244). Feeds on fishes (bottom as well as pelagic species, Ref. 26346), crustaceans, cephalopods, worms, and echinoderms (Ref. 244). Ovoviviparous (Ref. 50449). Targeted for human consumption, liver for squalene oil, fins for soup (Ref. 244); also utilized as fishmeal (Ref. 13563). Marketed fresh, dried-salted, and frozen (Ref. 9987). Adapts well in captivity if carefully captured and handled (Ref. 12951).

Life cycle and mating behavior Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες

Ovoviviparous, without a yolk-sac placenta (Ref. 244). Embryos feed solely on yolk (Ref. 50449). 6 to 52 young in a litter (Ref. 26346). Litter size increases with the size of the mother. Embryos reach 30-36 cm TL at birth (Ref. 6080). In the southern waters of Australia, newly born and older juveniles (30-70 cm long) aggregate in 'nursery areas' found in shallow waters.They move to deeper coastal waters to over-winter. The following spring finds most of these young returning to their nursery areas. The older ones, aged 2 years and over move instead to eastern Bass Strait where most of the immature stock are found. The length of an average full-term embryo is 32 cm. Spawning frequency is once every year, ovulation occurring in early summer and parturition is completed by January of the following year. Gestation period lasts for about 12 months (Ref. 6390, 6871).

Main reference Upload your references | Αναφορές | Συντονιστής : Compagno, Leonard J.V. | Συνεργάτες

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)

  Critically Endangered (CR) (A2bd); Date assessed: 14 February 2020

CITES

Not Evaluated

Threat to humans

  Harmless (Ref. 13563)





Human uses

αλιεία: πολύ εμπορικό; αλιεία αναψυχής: ναί; Ενυδρείο: Δημόσια ενυδρεία

Περισσότερες πληροφορίες

Κοινά ονόματα
Συνώνυμα
Μεταβολισμός
Θηρευτές
Οικοτοξικολογία
Αναπαραγωγή
Γεννητική Ωρίμανση
Γεννοβολία
Συναθροίσεις γεννοβολίας
Γονιμότητα
Αβγά
Egg development
Age/Size
Αύξηση
Length-weight
Length-length
Length-frequencies
Μορφομετρία
Μορφολογία
Προνύμφες
Δυναμική προνυμφών
Στρατολόγηση
Αφθονία
BRUVS
Αναφορές
Υδατοκαλλιέργειες
Προφίλ υδατοκαλλιέργειας
Στελέχοι
Γενετική
Electrophoreses
Κληρονομικότητα
Ασθένειες
Μεταποίηση
Nutrients
Mass conversion
Συνεργάτες
Φωτογραφίες
Stamps, Coins Misc.
Ήχοι
Σιγκουατέρα
Ταχύτητα
Κολυμβητικός Τύπος
Επιφάνεια βραγχίων
Otoliths
Εγκέφαλοι
Όραση

Εργαλεία

Special reports

Download XML

Διαδικτυακές πηγές

Estimates based on models

Preferred temperature (Ref. 123201): 6.7 - 23.2, mean 12.3 °C (based on 7314 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00479 (0.00363 - 0.00631), b=2.99 (2.91 - 3.07), in cm total length, based on LWR estimates for this species (Ref. 93245).
Τροφικό Επίπεδο (Ref. 69278):  4.3   ±0.1 se; based on diet studies.
Generation time: 11.9 (6.9 - 14.7) years. Estimated as median ln(3)/K based on 12 growth studies.
Ελαστικότητα (Ref. 120179):  Χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού 4,5 - 14 έτη (rm=0.033; tmax=55; Fec=6-52).
Prior r = 0.06, 95% CL = 0.04 - 0.10, Based on 3 stock assessments.
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (76 of 100).
Climate Vulnerability (Ref. 125649):  High vulnerability (62 of 100).
Price category (Ref. 80766):   Medium.
Nutrients (Ref. 124155):  Calcium = 8.56 [1.46, 48.15] mg/100g; Iron = 0.465 [0.128, 1.502] mg/100g; Protein = 20 [18, 22] %; Omega3 = 0.18 [0.11, 0.30] g/100g; Selenium = 44.2 [13.5, 139.5] μg/100g; VitaminA = 13.1 [4.2, 44.7] μg/100g; Zinc = 0.409 [0.194, 0.769] mg/100g (wet weight); based on nutrient studies.