Description:
Large hammerhead, dark olive grey to dark grey dorsally and white underside. Some individuals have dusky or black-edged pectoral fins. The cephalophoil has a broad anterior
margin without central notch. The mouth is acutely arched.
First dorsal fin is moderately high with rounded apex and falcate form; originating over the pectoral fin insertions. The back is smooth to the touch lacks an interdorsal
ridge. Second dorsal and pelvic fins are short. Pectoral fins are of medium length with slightly falcate posterior margins.
Size:
Maturity: 210-240cm TL. Max Length: 400-500cm TL.
Habitat and Ecology:
Coastal and pelagic it occurs over continental and insular plains as well as far offshore (0-200m depth, usually 0-20m). In shallower waters it is often bottom associated.
Feeds on a variety of teleosts as well as small sharks, rays, crustaceans and cephalopods. Viviparous, 20-50 pups per litter, 10-11 month gestation period. No evidence to
date that they breed in Seychelles waters.
Fishery Status:
This species is not protected or subject to fishery regulations. It is however illegal to fish for sharks with nets (Fisheries Act, Reg 16.c). It is caught in the hand line
and long line fisheries. It is a rare component of the artisanal catch.
Notes:
No completely intact specimens yet encountered, hence the photo of a dressed carcass.
References:
Ebert, D.A. et al (2013). Sharks of the World – A fully illustrated guide. Wild Nature press ISBN 978-0-9573946-0-5
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).
Florida Museum (2018). Sphyrna zygaena. https://www.floridamuseum.ufl.edu/fish/discover/species-profiles/sphyrna-zygaena/ (23/08/18).
Froese, R. and D. Pauly. Eds. (2018). FishBase. http://www.fishbase.org/summary/917 (22/08/18).
Nevill, J.E.G. et al (2015). An identification guide for the sharks of the Seychelles Artisanal Fishery.
Rigby, C.L. et al (2019). Sphyrna zygaena. The IUCN Red List 2019: e.T39388A2921825. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T39388A2921825.en. (27/09/21).
SharkReferences.com (2018). Sphyrna zygaena https://shark-references.com/species/view/Sphyrna-zygaena (23/08/18).
Citation:
Nevill, J.E.G. (2019). Sphyrna zygaena, Smooth hammerhead. Seychelles Seatizens. www.seatizens.sc. https://seatizens.sc/species/sphyrna-zygaena-linnaeus-1758/ (Updated 28/09/21).
Your articles are so easy to understand, thanks. Regards, IDProperti.com | Pasang Iklan Properti
Blog yang paling menarik kontennya ya disini, terima kasih dari IDProperti.com | Pasang Iklan Properti
pin up azerbaycan yukle https://azerbaijancuisine.com/# pin-up
pin-up
pin up kazino: pin up azerbaycan yukle – pin-up online casino
mexican rx online mexican northern doctors buying prescription drugs in mexico online
https://northern-doctors.org/# mexico pharmacies prescription drugs
mexican rx online: northern doctors – medication from mexico pharmacy
http://northern-doctors.org/# medicine in mexico pharmacies
buying prescription drugs in mexico online mexican pharmacy online mexico drug stores pharmacies
https://northern-doctors.org/# medication from mexico pharmacy
mexican online pharmacies prescription drugs: mexican pharmacy – mexican drugstore online
https://northern-doctors.org/# mexican border pharmacies shipping to usa
mexico pharmacies prescription drugs: mexican northern doctors – mexican online pharmacies prescription drugs
http://northern-doctors.org/# buying prescription drugs in mexico
https://northern-doctors.org/# buying prescription drugs in mexico
mexican rx online northern doctors pharmacy best online pharmacies in mexico
mexican pharmaceuticals online Mexico pharmacy that ship to usa pharmacies in mexico that ship to usa
https://northern-doctors.org/# buying prescription drugs in mexico
mexico drug stores pharmacies mexican northern doctors medication from mexico pharmacy
This article is fantastic! The insights provided are very valuable. For those interested in exploring more, check out this link: LEARN MORE. Looking forward to the discussion!
https://northern-doctors.org/# pharmacies in mexico that ship to usa
mexican border pharmacies shipping to usa mexican pharmacy northern doctors mexico drug stores pharmacies
https://northern-doctors.org/# mexican drugstore online
mexican rx online mexican northern doctors buying from online mexican pharmacy
https://northern-doctors.org/# medicine in mexico pharmacies
http://northern-doctors.org/# mexican mail order pharmacies
Such a great blog, thanks for sharing, Regards, IDProperti.com | Pasang Iklan Properti
Enjoying a hot cup of coffee while reading this engaging article Thanks for sharing! Cheers from IDProperticom
Just wanna say that Agen888 has ever been here before
best online pharmacy india: indian pharmacy paypal – best india pharmacy
https://canadapharmast.com/# canadian pharmacy 365
mail order pharmacy india: п»їlegitimate online pharmacies india – top online pharmacy india
canadian online pharmacy: canadian world pharmacy – canada pharmacy
india online pharmacy: online pharmacy india – indian pharmacy paypal
best online pharmacy india: india pharmacy mail order – pharmacy website india
top 10 pharmacies in india india online pharmacy online shopping pharmacy india
http://canadapharmast.com/# canadian pharmacy king
is canadian pharmacy legit canadian pharmacy reviews my canadian pharmacy
http://canadapharmast.com/# online pharmacy canada
canadian pharmacy 24 com: canadian pharmacy antibiotics – canadian pharmacy tampa
An intriguing discussion is worth comment. I do believe that you ought to publish more about this subject, it may not be a taboo matter but typically folks don’t discuss these issues. To the next! All the best!
canadian pharmacy uk delivery: best canadian pharmacy online – canadian pharmacy
http://clomiddelivery.pro/# order clomid pills
п»їpaxlovid: Paxlovid buy online – paxlovid cost without insurance
I absolutely love your website.. Great colors & theme. Did you make this site yourself? Please reply back as I’m hoping to create my own personal site and want to find out where you got this from or exactly what the theme is called. Appreciate it.
http://clomiddelivery.pro/# can i buy cheap clomid
Agen888 will visit this blog always
Paxlovid over the counter: Paxlovid over the counter – buy paxlovid online
I would like to thank you for the efforts you’ve put in penning this site. I really hope to view the same high-grade blog posts by you later on as well. In truth, your creative writing abilities has motivated me to get my own site now 😉
https://amoxildelivery.pro/# amoxicillin 250 mg capsule
https://paxloviddelivery.pro/# paxlovid pill
price of amoxicillin without insurance: where can i buy amoxocillin – amoxicillin 500mg
https://clomiddelivery.pro/# can you buy cheap clomid without rx
paxlovid cost without insurance: Paxlovid over the counter – paxlovid price
https://clomiddelivery.pro/# can you get cheap clomid no prescription
http://paxloviddelivery.pro/# Paxlovid buy online
where buy cheap clomid pill: can i purchase generic clomid online – order generic clomid
https://clomiddelivery.pro/# where to buy generic clomid tablets
After exploring a few of the blog articles on your website, I honestly appreciate your technique of writing a blog. I saved it to my bookmark webpage list and will be checking back soon. Please check out my web site too and tell me what you think.
http://ciprodelivery.pro/# buy cipro online canada
doxycycline 100mg over the counter: doxycycline prescription australia – doxycycline 100mg cost
п»їpaxlovid: Paxlovid over the counter – paxlovid covid