Weakfish Identification Guide

Key identification features

• Elongate, slightly compressed body with an iridescent blue-green to purplish back
• Dusky spots that blend into diagonal, wavy lines above the lateral line, giving a marbled look
• Silvery sides with a coppery or golden sheen that shifts with the light
• Yellowish pelvic, anal, and tail fins, often quite vivid on fresh fish
• Two prominent canine teeth in the upper jaw, hence the family nickname; grows to about 60-90 cm

Common look-alikes

• Spotted seatrout: shows distinct, rounded black spots on the back, dorsal fin, and tail rather than diffuse wavy lines.
• Silver seatrout: smaller-bodied, more uniformly silvery, and lacks the vivid iridescent back coloration.
• Sand seatrout: paler overall with a less pronounced wavy pattern and a smaller, less toothy mouth.

Where you'll see one

Weakfish range along the western Atlantic coast from Nova Scotia to Florida, favoring estuaries, bays, and nearshore continental shelf waters over sand or mud bottoms, especially during warmer months when they move inshore to feed and spawn.