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Swordfish. The swordfish (Xiphias gladius), also known as the broadbill[5] in some countries, are large, highly migratory predatory fish characterized by a long, flat, pointed bill. They are a popular sport fish of the billfish category, though elusive. Swordfish are elongated, round-bodied, and lose all teeth and scales by adulthood.
Billfish. The billfish are a group of saltwater predatory fish characterised by prominent pointed bills (rostra), and by their large size; some are longer than 4 m (13 ft). Extant billfish include sailfish and marlin, which make up the family Istiophoridae; and swordfish, sole member of the family Xiphiidae. They are often apex predators which ...
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 ...
A swordfish's characteristic bill gives it its name, and it can grow to more than 1,000 pounds and 170 inches long. Commercially fished swordfish are typically 50 to 200 pounds and 47 to 75 inches ...
They have no jaw, no scales, no paired fins, and no bony skeleton. Their skin is smooth and soft to the touch, and they are very flexible. Instead of a jaw, they possess an oral sucker. They use this to fasten onto other fish, and then use their rasp-like teeth to grind through their host's skin into the viscera.
Image credits: giuliamanfrini Catching the surfer off guard, the swordfish struck her in the chest and left a a stab wound, nearly 2 inches deep, on the left side of her chest.. Two fellow surfers ...
Comparison of the depths which different colours of light penetrate clear open ocean waters and the murkier coastal waters. Water absorbs the warmer long wavelengths colours, like reds and oranges, and scatters the cooler short wavelength colours. [4] Fish and other aquatic animals live in a different light environment than terrestrial species do.
A fish scale is a small rigid plate that grows out of the skin of a fish. The skin of most jawed fishes is covered with these protective scales, which can also provide effective camouflage through the use of reflection and colouration, as well as possible hydrodynamic advantages. The term scale derives from the Old French escale, meaning a ...