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The species name, Xiphias gladius, derives from Greek ξιφίας (xiphias, "swordfish"), itself from ξίφος (xiphos, "sword") and from Latin gladius ("sword"). [6] This makes it superficially similar to other billfish such as marlin, but upon examination, their physiology is quite different and they are members of different families. [9]
The Swordfish (Xiphias gladius) is a large oceanic apex predator inhabiting all the world's oceans. It is found in the entire Indian Ocean down to latitude 45°S. [ 1 ] Before the 1990s X gladius was mainly a non-targeted catch of industrial longline fisheries; but after 1990 catches increased from around 8,000 t to 36,000 t in 1998 with ...
The 12 species of true billfish are divided into two families and five genera. One family, Xiphiidae, contains only one species, the swordfish Xiphias gladius, and the other family, Istiophoridae, contains 11 species in four genera, including marlin, spearfish, and sailfish.
Swordfish (Xiphias gladius) are large, highly migratory, predatory fish characterized by a long, flat bill in contrast to the smooth, round bill of the marlins. Swordfish are elongate, round-bodied, and lack teeth and scales as adults. They are the sole member of their family Xiphiidae.
Swordfish (Xiphias gladius) Fortescue grunter (Leiopotherapon aheneus) Lupinoblennius vinctus; Mutton snapper (Lutjanus analis) Lane snapper (Lutjanus synagris) Ornate paradisefish (Malpulutta kretseri) Tufted blenny (Mccoskerichthys sandae) Shoal bass (Micropterus cataractae) Suwannee bass (Micropterus notius) Guadalupe bass (Micropterus treculii)
Aleksandrov, A. I., 1927: Anchois de la mer d'Azoff et de la mer Noire, leurs origine et indications taxonomiques. Reports of the Scientific Station of Fisheries in Kertch v. 1 (2–3): 37–99.
The best known and important, from an economic point of view, are the great pelagic fish - that is the Tuna (Thunnus thynnus), the Albacore (Thunnus alalunga), the Atlantic bonito (Sarda sarda), the Mediterranean Spearfish (Tetrapturus belone) and the Swordfish (Xiphias gladius).
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