Range and natural history
Compared with more coastal sand-lance settings, FishBase associates this species with offshore, fully marine water. Reported depths extend to about 108 meters. It feeds on small crustaceans and worms, with the copepod Calanus finmarchicus an important recorded prey.
Its long dorsal and anal fins and slender outline are useful starting points, but identification also depends on counts and other anatomical characters. A narrow, silvery fish in a feeding flock is not enough to establish the species. Sand-lance names and the location of the observation should be checked together.
Sources: Ammodytes dubius species summary
