Scaled Sardine Identification Guide

Key identification features

• Deep-bodied, laterally compressed, silvery fish with a blue-green iridescent back
• Row of sharp, saw-edged scutes running along the belly from throat to vent
• Often shows a single dusky spot on the shoulder just behind the gill cover
• Large, loosely attached scales that shed easily when handled, giving the fish a flashing, glittery look in the water
• Small, deeply forked tail fin and a short, high-set dorsal fin near midbody
• Typically 10-15 cm (4-6 in) long, rarely reaching much larger sizes

Common look-alikes

• Atlantic thread herring: has a long, thread-like extension trailing from the last dorsal fin ray, absent in the scaled sardine
• Spanish sardine: slimmer, more elongated body and a less pronounced shoulder spot
• Menhaden: much deeper-bodied with a bigger head and usually a row of small spots trailing the main shoulder spot

Where you'll see one

Scaled sardines school in shallow coastal, bay, and estuarine waters of the western Atlantic, from the southeastern United States through the Gulf of Mexico and Caribbean, often near grass flats, mangroves, and inshore reefs.