Sand Dab

Overview

The Sand Dab (Limanda limanda) is a common, edible flatfish belonging to the righteye flounder family. It is widely distributed across the shallow seas of Northern Europe, where it thrives as a bottom-dwelling species on sandy and muddy seabeds.

Distribution & habitat

This species is found throughout the Northeast Atlantic, ranging from the Bay of Biscay in the south to Iceland, Norway, and the Barents, White, and Baltic Seas. While they can be found at depths up to 150 meters, they are most frequently encountered in shallower coastal waters between 20 and 40 meters. Juveniles often inhabit very shallow inshore areas, while adults may migrate to deeper waters during colder months.

Appearance

Like other righteye flounders, the Sand Dab has both eyes on the right side of its head. Its body is relatively thin and rounded, with a pale brown upper surface that often features darker blotches or speckles. A key diagnostic feature is the lateral line, which displays a distinct, strong semi-circular curve above the pectoral fin. The skin on the eyed side is notably rough to the touch, and the pectoral fins may sometimes exhibit an orange tint.

Biology & behavior

Sand Dabs are demersal, spending most of their time resting on the seafloor where their coloration provides effective camouflage against sandy substrates. They are generally active during the day and are capable of rapid, short-distance swimming when necessary. Spawning typically occurs in the spring, with females releasing pelagic eggs that drift with the currents.

Feeding

As opportunistic predators, they feed on a variety of bottom-dwelling organisms, including crustaceans, mollusks, marine worms, echinoderms, and small fish. They often employ a "sit-and-wait" strategy, raising their head and forebody to strike quickly at passing prey.