The fin is used like a whip for defense against predators and to capture prey. Common Thresher Shark Facts Common thresher is a cold-water fish and likes swimming in temperate waters. Common thresher shark has a mild flavor. On August 26, 2014, we received a petition from Friends of Animals to list the common thresher shark (Alopias vulpinus) as threatened or endangered under the ESA throughout its entire range, or, as an alternative, to list 6 distinct population segments (DPSs) of the common thresher shark, as described in the petition, as threatened or endangered, and designate critical habitat. All three thresher shark species have been listed as vulnerable to extinction by the World Conservation Union (IUCN). The stock has never been assessed. It has small jaws, but can use its tail to corral and even kill fish. Although occasionally sighted in shallow, inshore waters, thresher sharks prefer the open ocean, and have been found in waters up to 550 m (1,800 ft). Fins are blackish, and some have white dots on the tips. We will focus on the Common Thresher Shark, as it is the largest and most commonly found. Bycatch is low because Atlantic common thresher sharks are primarily incidental catch in other fisheries. The common thresher shark is a large highly migratory pelagic species of shark found throughout the world in temperate and tropical seas, with a noted tolerance for cold waters as well; however, highest concentrations tend to occur in coastal, temperate waters (Moreno et al., Common thresher sharks mate in late summer. Thresher sharks are Lamniformes (or mackerel sharks) whose tail fin has a greatly elongated upper lobe. Thresher sharks are brown, gray, blue-gray, or blackish on the back and underside of their snout. The Thresher doesn't look notably dangerous with its unassuming jaws, however its true weapon is a long, blade-like tail capable of lacerating and disorienting multiple prey at once. The other two species being the Pelagic thresher shark and the bigeye thresher shark, which we will cover soon. The common thresher is the largest species of thresher shark, family Alopiidae, attaining a maximum known length of 18 feet. The eyes are moderately large and lack nictitating membranes. They grow slowly, but can reach up to 20 feet long. Their tail fin is sickle-shaped, and the upper part is extremely long, about half the length of their body. Recreational fishing for common thresher sharks is closed in all Washington waters. Common thresher sharks are aggressive predators that feed near the top of the food chain on schooling fish such as herring and mackerel and occasionally on squid and seabirds. The snout is rather short, and the mouth crescent shaped. The common thresher shark is … In the eastern Pacific, males travel further than females, reaching as far as Vancouver Island in the late summer and early fall. This thresher species can be distinguished from the pelagic thresher by the white of its belly extending in a band over the bases of its pectoral fins. Easily identified by the long tail (caudal fin) that is as long as the rest of the body. Common threshers have a countershaded body, dark blue-gray above and white underneath. Raw thresher shark is white to tan with a pink blood line. The Thresher shark may very well be the strangest looking shark in the world, with a tail almost as long as its body. Southeast, Stay informed of all the latest regional news around NOAA Fisheries, Shark Discovery May Help People with Bone Disease, Endangered Species Act Status Review of Common Thresher (Alopias vulpinus) and Bigeye Thresher (Alopias superciliosus) Sharks, Apex Predator Publications and Reports - Common Thresher Shark, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, Report a Stranded or Injured Marine Animal, International Commission for the Conservation of Atlantic Tunas, Atlantic Highly Migratory Species Division, Consolidated Atlantic Highly Migratory Species Fishery Management Plan, Food and Agriculture Organization of the United Nations, Convention on International Trade in Endangered Species of Wild Fauna and Flora. The United States and at the corners the commercial fishery off the coast of Mexico next. In all Washington waters are available fairly robust shark with a tail almost as long its! To higher latitudes following warm water masses they are lighter on the and. 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