Resultado de búsqueda
Swordfish use their swords to knock fast, agile prey off balance during high speed chases, incapacitating them for easy consumption. 1. 2. The need for speed has driven their evolution. In order to outmanoeuvre their prey, swordfish have evolved a body plan that prioritises swimming performance above all else.
Animals Network Team. Swordfish, also known as “broadbills,” are large migratory fish. They are speedy, powerful predators and highly prized in the sport fishing community. These fish are named for their long, sword-like flattened bill. Though they superficially look similar to other large billfish, they are actually in their own taxonomic ...
31 de jul. de 2012 · Swordfish have a brownish-black back and light underside. They have a tall first dorsal fin and distinctly forked tail. They can grow to a maximum length of over 14 feet and weight of 1,400 pounds. Females are larger than males. While young swordfish have spines and small teeth, adults do not have scales nor teeth.
The swordfish’s bill differs from those of the other billfishes by being flat and blunt, rather than round and pointed. Like many open ocean bony fishes, swordfish start out as extremely tiny larvae, no more than a few millimeters long and weighing only a few hundredths of a gram. Soon after hatching, they already have a visible bill.
In 2022, commercial landings of North Atlantic swordfish totaled 2.7 million pounds and were valued at $10.6 million, according to the NOAA Fisheries commercial fishing landings database. Fishermen mainly use pelagic longline gear to harvest swordfish. They may also use rod-and-reel, harpoon, and buoy gear.
The Swordfish has a very long flattened bill and a strong keel on the caudal peduncle. It has a short-based dorsal fin that is well separated from the second dorsal fin. The species lacks teeth, scales and pelvic fins. It is blue to brown above fading to silver or light brown below. The membrane of the first dorsal fin is usually black.
Swordfish (Xiphias gladius), also known as broadbills 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.
