swordfish


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swordfish,

large food and game fish, Xiphias gladius, of the warmer Atlantic and Pacific waters. It is named for its sharp, broad, elongated upper jaw, which it uses to flail and injure its prey of smaller fish. Swordfish breed as far north as Nova Scotia; they are often seen basking on the water's surface, and their fins are sometimes mistaken for those of sharks. They may reach 15 ft (457 cm) and 1,000 lb (450 kg); however, specimens half this size are considered large. Swordfish were formerly harpooned commercially but now are taken using long lines with multiple baited hooks. Conservation efforts are underway to rebuild depleted stocks. Swordfish 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.
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, subphylum Vertebrata, class Actinopterygii, order Perciformes, family Xiphiidae.

Swordfish

 

(Xiphias gladius), the only modern representative of the family Xiphiidae of the order Perciformes. The upper jaw is extended into a swordlike projection. There are no ventral fins. The naked body is up to 4 m long and weighs up to half a ton. The swordfish is found in all oceans, primarily in the tropics; it is also encountered in arctic latitudes in the north. In the USSR the fish is found in the Black, Baltic, and Barents seas, as well as in the Sea of Japan and the Sea of Azov. Swordfish generally are solitary animals. Mating occurs in the warm season; the roe are pelagic. Swordfish feed on nektons, including squids, tuna, and sharks. They are commercially valuable.

Swordfish

[′sȯrd‚fish]
(astronomy)

swordfish

a large scombroid fish, Xiphias gladius, with a very long upper jaw: valued as a food and game fish: family Xiphiidae
References in periodicals archive ?
That gear had swordfish populations on a death spiral since the 1970s.
The Swordfish during this year's Southport Air Show
Although the albacore surface-hookan -line fishery (Dotson and Center (2)) appears to be operating near historical capacity, swordfish fleets have experienced a similar decline in recent years to that of the purse seine fleet in terms of participation, effort, catch, landing, and revenues.
Nestled alongside the more expected, and in season, wild salmon and sea trout, the swordfish has landed at Latimer's Seafood Deli and Cafe in Whitburn, two miles from where it was caught near Souter Lighthouse.
And just as he came offshore at Souter Lighthouse, he landed this beautiful swordfish in with a catch of wild salmon and sea trout.
The FWC will conduct genetic testing to confirm that the eye belongs to a swordfish.
There is strong anecdotal information from captains who target large pelagic fish that the lunar phase affects fishing success for swordfish and other pelagic fish.
Codemasters development general manager Gavin Cheshire said: "Since joining Codemasters in late 2008 following the acquisition of Swordfish Studios, it's been a pleasure to have Trevor on the senior studios team and his contribution has been of great benefit to our Southam, Birmingham and Malaysian studios.
The Swordfish has a distinguished history that includes its role in the Bismarck sinking in May 1941 and in protecting Atlantic convoys.
A Fairey Swordfish Mk 1 torpedo bomber, or Stringbag as it was affectionately known by crews, is to be restored to its former glory by engineers at BAE Systems in the centenary year of naval aviation.
A The swordfish has a long, flat upper jaw that is up to onethird the length of its body.
Age and growth of the swordfish (Xiphias gladius Linnaeus, 1758) in the southeastern Pacific off Chile (2001).