Description:
Medium-sized, sturdy species. Dark grey to bronze grey back fading to grey/bronze on the flank to an off-white stomach. Caudal fin with conspicuous broad dark posterior margin.
Fins: D1 large semi-falcate with narrowly rounded to pointed apex. Colouration varies from plain through irregularly to prominently white-edged to white band on posterior edge.
Some degree of white marking on D1 is prevalent in Seychelles specimens. D2 relatively large with dusky/dark colouration. Occurrence of interdorsal ridge varies from none
to quite broad ridge midway between dorsal fins. Pectoral fins large, narrow and falcate with dusky/dark (not black) ventral tips. Caudal fin has conspicuous broad dark
posterior margin. Anal and pelvic fins with dusky/dark apices.
Head: Broadly rounded moderately long snout, nostrils large with prominent incurrent depression and small anterior nasal flaps. Large circular eyes, inconspicuous labial
furrows. Mid-sized gill slits.
Size:
Born 45-75cm TL. Mature: Male 110-145cm TL, Female 120-135 cm TL. In Seychelles waters largest specimen one can expect to see is 180 cm TL.
Habitat and Ecology:
Continental and insular shelves and adjacent oceanic waters. Common on coral reefs. Found throughout the Mahe plateau. Feeds on small teleosts, cephalopods and crustaceans.
Viviparous 1-6 pups per litter after gestation of approx 12 months. The species exhibits an extended breeding season in Seychelles April – November, with peaks in April/May
and Oct/Nov.
Fishery Status:
This species is not protected. It is however illegal to fish for sharks with nets (Fisheries Act, Reg 16.c). It is subject to hook and line, short anchored long and illegal
net fishing. Grey reef shark is the species, by weight, most commonly landed by the artisanal fishery. A 2013-2018 catch monitoring survey indicates a gradual and ongoing
reduction in the average size of specimens being caught. Divers also report a significant decline of populations at former aggregation sites over the last 30 years.
Notes:
Garrick (1982) classified the grey reef shark in the western Indian ocean as being a distinct species and termed it Carcharhinus wheeleri. This was based primarily on
differences in the morphology of the snout and colouration of the D1 fin. In the Seychelles though the snout dimensions have not been further investigated the D1
coloration shows all the intermediate forms from plain grey to thick white trailing edge suggesting a phenotypic variation in the local population
References:
Fisheries Act 2014. Prohibition of net fishing of sharks, Reg. 16c of 1st August 1998. (Carried over from the 1986 Fisheries Act as per Fisheries Act 2014 para 79:
Savings and Transitional provisions).
Garrick, J.A.F. (1982). Sharks of the Genus Carcharhinus. NOAA Technical Report NMFS Circular 445. Dept of Commerce, USA.
Nevill, J.E.G. (2018). Artisanal Shark Fishery database.
Nevill, J.E.G. et al (2015). An Identification Guide for the Sharks of the Seychelles Artisanal fishery.
SFA (2016). Seychelles National Plan of Action for the Conservation and Management of Sharks.
Simpfendorfer, C. et al (2020). Carcharhinus amblyrhynchos. IUCN Red List 2020: e.T39365A173433550. https://dx.doi.org/10.2305/IUCN.UK.2020-3.RLTS.T39365A173433550.en.
(02/04/21).
Citation:
Nevill, J.E.G.(2019). Seychelles Seatizens. Carcharhinus amblyrhynchos, Grey reef shark. https://seatizens.sc/species/carcharhinus-amblyrhynchos-bleeker-1856/ (Updated 21/09/21).
pin up yukle: pin-up online casino – pin up apk yukle
pin up yukle https://azerbaijancuisine.com/# pin-up casino giris
pin up azerbaijan
mexico drug stores pharmacies mexican northern doctors best online pharmacies in mexico
http://northern-doctors.org/# reputable mexican pharmacies online
https://northern-doctors.org/# pharmacies in mexico that ship to usa
http://northern-doctors.org/# medication from mexico pharmacy
mexican drugstore online northern doctors mexican drugstore online
https://northern-doctors.org/# mexican mail order pharmacies
https://northern-doctors.org/# pharmacies in mexico that ship to usa
mexico pharmacies prescription drugs: northern doctors – mexican online pharmacies prescription drugs
https://northern-doctors.org/# mexico drug stores pharmacies
http://northern-doctors.org/# mexico pharmacies prescription drugs
medicine in mexico pharmacies northern doctors mexican drugstore online
reputable mexican pharmacies online: mexican pharmacy online – mexican pharmacy
mexican online pharmacies prescription drugs: northern doctors pharmacy – purple pharmacy mexico price list
mexican pharmaceuticals online: mexican pharmacy northern doctors – mexico drug stores pharmacies
https://northern-doctors.org/# п»їbest mexican online pharmacies
mexico drug stores pharmacies: northern doctors pharmacy – mexican drugstore online
mexican online pharmacies prescription drugs northern doctors pharmacy pharmacies in mexico that ship to usa
http://northern-doctors.org/# mexican border pharmacies shipping to usa
purple pharmacy mexico price list: mexican pharmacy northern doctors – mexico pharmacy
Very informative and funny! For further reading, check out: DISCOVER HERE. What’s your take?
mexican pharmaceuticals online: mexican northern doctors – mexican mail order pharmacies
mexican pharmaceuticals online: mexican pharmacy online – buying prescription drugs in mexico
mexican rx online: northern doctors pharmacy – mexico drug stores pharmacies
http://northern-doctors.org/# mexican online pharmacies prescription drugs
mexican mail order pharmacies: northern doctors – mexico drug stores pharmacies
buying from online mexican pharmacy mexican pharmacy northern doctors purple pharmacy mexico price list
mexican drugstore online: buying from online mexican pharmacy – buying from online mexican pharmacy
http://northern-doctors.org/# medication from mexico pharmacy
purple pharmacy mexico price list: buying prescription drugs in mexico – mexican drugstore online
mexican drugstore online: mexican pharmacy – medicine in mexico pharmacies
mexican pharmaceuticals online mexican pharmacy buying prescription drugs in mexico
mexican pharmacy: mexican northern doctors – medicine in mexico pharmacies
pharmacies in mexico that ship to usa: mexican pharmacy online – mexico pharmacy
mexico pharmacy cmq pharma mexican pharmacy mexican rx online
medication from mexico pharmacy mexico pharmacies prescription drugs mexican border pharmacies shipping to usa
canadian mail order pharmacy: canadian pharmacy – canadian online pharmacy
top 10 online pharmacy in india: Online medicine order – Online medicine home delivery
mexican pharmacy buying from online mexican pharmacy medicine in mexico pharmacies
top online pharmacy india: india online pharmacy – top online pharmacy india
indian pharmacy online: india pharmacy – best india pharmacy
canadian pharmacy uk delivery: legal to buy prescription drugs from canada – canadian drugs
mexican mail order pharmacies medication from mexico pharmacy medication from mexico pharmacy
mexican drugstore online: mexican rx online – mexican border pharmacies shipping to usa
best online pharmacy india: п»їlegitimate online pharmacies india – india online pharmacy
reputable indian pharmacies: buy medicines online in india – top 10 online pharmacy in india
pharmacy com canada ed meds online canada escrow pharmacy canada
http://foruspharma.com/# mexican mail order pharmacies
indianpharmacy com: indian pharmacy paypal – indian pharmacy online
legit canadian pharmacy: canadian drug prices – canadian neighbor pharmacy
trustworthy canadian pharmacy: reliable canadian online pharmacy – cross border pharmacy canada
http://ciprodelivery.pro/# buy cipro online without prescription
https://amoxildelivery.pro/# amoxicillin 250 mg
https://amoxildelivery.pro/# where can i buy amoxocillin
http://doxycyclinedelivery.pro/# doxycycline price comparison
https://ciprodelivery.pro/# ciprofloxacin generic
http://paxloviddelivery.pro/# paxlovid pharmacy
https://amoxildelivery.pro/# amoxicillin 500mg capsules
how to order doxycycline: doxycycline 40 mg – doxycycline 100mg capsules uk
http://clomiddelivery.pro/# can i order clomid
http://doxycyclinedelivery.pro/# doxycycline 100mg tablet brand name
buy cipro without rx: ciprofloxacin – buy cipro without rx