Abstract
Red mullet (Mullus surmuletus) and striped red mullet (M. barbatus). An exchange for a new set of M. barbatus otoliths from the Mediterranean should be examined and new sets of M. surmuletus otoliths from the Mediterranean, the Gulf of Biscay and the English Channel should be organised, in order to detect differences between areas. PGCCDBS recommends a small exchange in 2011 in order to clarify the ageing in these species and to compare age reading from otoliths and scales (PGMED).