Depth and spatial distribution of blue whiting juveniles in Bay of Biscay

During March-April 1994 and 1996 two cruises have been performed around Bay of Biscay in order to check movements of blue whiting using acoustic methods. These cruises consisted in a double coverage of an area from 47°30' N, 7°15' W to 43°30' N, 6°30' W along the French and Spanish continental shelf-break (200 m to 1000 m). During these surveys juveniles of blue whiting were found in off-shore pelagic schools. This paper describes the spatial distribution and depth of these schools around the studied area.