Long-tailed thresher shark

Long-tailed thresher shark

Taxobox
name = Long-tailed thresher shark
status = VU
status_system = iucn3.1
status_ref = cite press release |title=More oceanic sharks added to the IUCN Red List |publisher=IUCN |date=2007-02-22 |url=http://www.iucn.org/en/news/archive/2007/02/22_pr_sharks.htm |format= |language= |accessdate=2007-02-25 |quote=All three species of thresher sharks, known for scythe-like tails that can be as long as their bodies - were listed as "Vulnerable" globally. ]


image_width = 250px
regnum = Animalia
phylum = Chordata
classis = Chondrichthyes
subclassis = Elasmobranchii
ordo = Lamniformes
familia = Alopiidae
genus = "Alopias"
species = "A. vulpinus"
range_



range_map_width = 250px
range_map_caption = Range of long-tailed thresher shark (in blue)
binomial = "Alopias vulpinus"
binomial_authority = (Bonnaterre, 1788)

The long-tailed thresher shark, "Alopias vulpinus", is a thresher shark inhabiting tropical and temperate waters worldwide. Like all thresher sharks, it has a very long upper lobe of the caudal fin, sometimes as long as the body. Its body is brown or grey with a white underside. They can grow to about 25 ft in length and 750 lb. Thresher sharks often hunt in groups or pairs, stunning their prey with their tails before feeding on it. They mostly eat other fish and squid, but have been known to kill seabirds as well.Thresher sharks are highly migratory, moving northward in the spring in order to breed. They are oviparous and litters contain two to six pups, born five feet long.

Long-tailed thresher sharks are consumed as a food fish in many countries and prized as a game fish. Their hides are used for leather. They are not considered dangerous to humans, but are considered a nuisance to mackerel fishermen, due to their propensity to become tangled in fishing nets. Fully grown threshers have no known predators other than killer whales 2 and humans.

Other common names for long-tailed thresher sharks include "thintail thresher", "common thresher", "fox shark", "sea fox", "swiveltail", "spindletail", and "thrasher".

References

2. Visser, I. 2005. First Observations of Feeding on Thresher (Alopias vulpinus) and Hammerhead (Sphyrna zygaena) Sharks by Killer Whales (Orcinus orca), Which Specialise on Elasmobranchs as Prey. Aquatic Mammals 2005, 31(1), 83-88.
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External links

* [http://www.flmnh.ufl.edu/fish/Gallery/Descript/ThresherShark/ThresherShark.html Florida Museum of Natural History biological profile]
* [http://marinebio.org/species.asp?id=284 Marinebio.org fact sheet]
* [http://www.fao.org/figis/servlet/species?fid=2008 Fisheries Global Information System (FIGIS) species fact sheet]
* [http://swfsc.nmfs.noaa.gov/FRD/HMS/Large%20Pelagics/Sharks/species/common%20thresher.htm Southwest Fisheries Science Center fact sheet]


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