Species Finder Species Posted Jul 17, 2013 Swordfish Appearance The swordfish gets its name from its long, flattened bill that extends from the upper jaw. Their first dorsal fin is much taller than their second. They have a broad, crescent-shaped tail. Swordfish have a dark black or brownish color along the top of its body, fading to a lighter color underneath. Habitat This highly migratory species move to warmer waters in the winter, and cooler waters in the summer. Can be found at depths over 2000 feet, and as shallow as 300 feet or less. Top Spots for Swordfish Venice Grand Isle State Record 310.0 pounds, 1980. Fishing Tips Swordfish favor deeper waters during the day, so prepare to go as deep as 2000 feet to catch them. You may need weights of at least five pounds to get your bait down far enough. Nighttime is when swordfishing is at its best because they swim much higher in the water column (no deeper than 300 feet). Use mullet, mackerel, or squid as bait.