thresher shark


Also found in: Dictionary, Thesaurus, Wikipedia.

thresher shark,

long-tailed, warm-water shark, genus Alopias. The upper fork of its tail is slender and sickle-shaped and is about equal in length to the rest of the body. This shark uses its tail strike and stun the small schooling fish on which it feeds; the tail also is flailed from side to side to sweep prey in front of the shark. The thresher also slaps the water with its tail to frighten its prey. Threshers are found chiefly in offshore, tropical waters, but are also known in temperate regions. The common thresher, A. vulpinus, is widely distributed throughout the Atlantic and the E Pacific; it is common off the New England coast in summer and is fished commercially on the S California coast. It may reach a length of 20 ft (6.2 m) and weigh 1,000 lb (450 kg). A second species, A. pelagicus, is found in the W Pacific. The big-eyed thresher, A. superciliosus, is a deep-sea fish of the tropical and subtropical Atlantic. It is smaller than the common thresher, but its eyes may measure 4 in. (10 cm) in diameter. Thresher sharks are classified in the phylum ChordataChordata
, phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal skeletal support at some stage of their development. Most chordates are vertebrates (animals with backbones), but the phylum also includes some small marine invertebrate animals.
..... Click the link for more information.
, subphylum Vertebrata, class Chondrichthyes, order Selachii, family Alopiidae.
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/

thresher shark

[′thresh·ər ‚shärk]
(vertebrate zoology)
Common name for fishes in the family Alopiidae; pelagic predacious sharks of generally wide distribution that have an extremely long, whiplike tail with which they thrash the water, destroying schools of small fishes.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
Mentioned in ?
References in periodicals archive ?
conclude that thresher shark retention bans are ineffective.
Catch composition during PIER DSBG research sets consisted of nine species, which included the same seven species captured in the EFP trials, as well as the common thresher shark, Alopias vulpinus (n=2) and yellowfin tuna, Thunnus albacares (n=1).
The functional role of the caudal fin in the feeding ecology of the common thresher shark Alopias uulpinus.
David Thomas, third from left, from Bryncethin, Bridgend, caught the biggest thresher shark ever landed in Welsh waters
Dr Simon Oliver, founder of the Thresher Shark Research and Conservation Project and a researcher based at University of Liverpool, filmed pelagic thresher sharks as they hunted off Pescador Island in the Philippines.
Llwynog y mr ydi enw Cymraeg y morgi "thresher shark" (Alopeccas vulpes).
* Thresher sharks Another shark species you might be fortunate enough to see surfing off Gower is the thresher shark - now listed as vulnerable due to over fishing for its highly-prized meat.
With a continuous food supply, thresher shark embryos feed during the entire developmental period and do not acquire the distended yolk stomachs of sand tiger shark and mako embryos.
The thresher shark was found on Hayle beach, in Cornwall, by the surfers who thought it was a dolphin.
The thresher shark was found on Hayle beach by surfers who thought it was a dolphin.
Had it been a thresher shark, they could have kept it.