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the Latin term gladius means "sword", referring to the long sword-like billThe swordfish is found in oceanic regions worldwide, including the Atlantic, Pacific, and Indian Oceans. It is found in tropical, temperate, and sometimes cold waters, with a latitudinal range of approximately 60N to 45S. The swordfish is a highly migratory species, generally moving to warmer waters in the winter and cooler waters in the summer. It is often present in frontal zones, areas where ocean currents collide and productivity is high. the swordfish is primarily a midwater fish at depths of 650-1970 feet (200-600 m) and water temperatures of 64 to 71F (18-22C). Swordfish reach a maximum size of 177 in. (455 cm) total length and a maximum weight of 1,400 lbs. (650 kg), although the individuals commercially taken are usually 47 to 75 in. (120-190 cm) long in the Pacific. Females are larger than males of the same age, and nearly all specimens over 300 lbs. (140 kg) are female. Pacific swordfish grow to be the largest, while western Atlantic adults grow to 700 lbs. (320 kg) and Mediterranean adults are rarely over 500 lbs. (230 kg). The IGFA all tackle record is 1182 lb. (536.15 kg). Swordfish reach sexual maturity at 5-6 years of age, with a maximum lifespan of at least 9 years.swordfish feed at the surface as well as the bottom of their depth range (>2,100 ft (650 m)) as evidenced by stomach contents. They feed mostly upon pelagic fishes, and occasionally squids and other cephalopods.
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toncieana added this comment 2011-05-11 09:58:55-05:00
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