Citation: Jg. Pope et Ct. Macer, AN EVALUATION OF THE STOCK STRUCTURE OF NORTH-SEA COD, HADDOCK, AND WHITING SINCE 1920, TOGETHER WITH A CONSIDERATION OF THE IMPACTS OF FISHERIES AND PREDATION EFFECTS ON THEIR BIOMASS AND RECRUITMENT, ICES journal of marine science, 53(6), 1996, pp. 1157-1169