Alopias

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Alopias

(thresher sharks), the only genus of the family Alopidae of the suborder Selachoidei. Body length, up to 6 m; weight, up to 450 kg. The upper lobe of the tail is very long. There are four species, distributed in the warm waters of all oceans, usually far from shore. The thresher (Alopias vulpinus), which is found primarily in subtropical regions, migrates to moderately warm seas in the summer. The sharks are viviparous, bearing two to four young, which measure up to 1.5 m long. They feed on shoals of fish and on squids, which they stun with blows of the tail. Thresher sharks are not dangerous to man, and their commercial value is slight.

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References in periodicals archive ?

Species Common name Length (cm) (type) Alopias spp.

Isotopic niches of four commercially important pelagic elasmobranch species captured by the small-scale driftnet fishery of northern Peru

prohibited any directed fishery on Alopias species.

AT THE INTERSECTION OF SCIENCE & POLICY: INTERNATIONAL SHARK CONSERVATION & MANAGEMENT

Diel vertical migration of the bigeye thresher shark (Alopias superciliosus), a species possessing orbital retia mirabilia.

Exempted Testing of Deep-set Buoy Gear and Concurrent Research Trials on Swordfish, Xiphias gladius, in the Southern California Bight

Age, growth, and reproduction of the pelagic thresher, Alopias pelagicus in the northwestern Pacific.

Observations on the reproductive cycles of some viviparous North American sharks

The functional role of the caudal fin in the feeding ecology of the common thresher shark Alopias uulpinus.

A new underwater shark capture method used by divers to catch and release nurse sharks (Ginglymostoma cirratum)

porosus, garra aguila Sphrna lewini, 16/0, japones Alopias pelagicus, -Redes de deriva, 8 A.

Population structure and reproductive characteristics of the silky shark Carcharhinus falciformis (Muller & Henle, 1839) (Carcharhiniformes: Carcharhinidae) off the coast of Oaxaca, Mexico

The requirement for a uniform large mesh size makes HMS DGN gear highly selective for pelagic market species such as swordfish; common thresher shark, Alopias vulpinas; and shortfin mako shark, Isums oxyrinchus, as small or undersized fish are able to swim through the mesh unharmed, whereas excessively large fish are unable to penetrate the mesh sufficiently to become trapped (Jennings et al., 2009).

From sunrise to sunset in the California drift gillnet fishery: an examination of the effects of time and area closures on the catch and catch rates of pelagic species

Diel vertical migration of the bigeye threster shark, Alopias superciliosus, a species possessing orbital.

Vertical movements of the southern stingray, Dasyatis americana (Hildebrand & Schroeder, 1928) in the Biological Reserve of the Rocas Atoll, Brazil

Additional species captured during the deep-set trials were bigeye thresher sharks, Alopias superciliosus (7); opah, Lampris guttatus (2); blue sharks, Prionace glauca (2); and common thresher shark, Alopias vulpinus (1) (Table 2, Fig.

Development and trial of deep-set buoy gear for swordfish, Xiphias gladius, in the Southern California Bight

Pan-Atlantic distribution patterns and reproductive biology of the bigeye thresher, Alopias superciliosus.

Age and growth of the highly exploited narrownose smooth-hound (Mustelus schmitti) (Pisces: Elasmobranchii)

(2005), demostraron que la tasa de crecimiento embrionario en los generos Isurus y Alopias es menor que en C.

Occurrence of an Isurus oxyrinchus pregnant female to the northwest of Cuba

In 1990, the NMFS SWR began placing observers on board the portion of the California drift gillnet fishery targeting swordfish and thresher sharks, Alopias vulpinus.

Federal fisheries observer programs in the United States: over 40 years of independent data collection

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