A very common flatfish found all round our shores the Dab, Limanda limanda, is not easy to recognize underwater due to its habit - along with many other flatfish - of modifying its colour to suit the background. The most reliable guide is the shape of the lateral line which arches steeply around the pectoral fin. It also often displays faint yellow spots as in the photograph. Juveniles are common right up to the shoreline with adults more often seen below 15m.
Also called the Common Dab.
St. Abbs Marine Reserve, North Sea