The combined fleets of France and Spain had destroyed upwards of 100 merchant vessels, and taken a great number of prisoners. Some were sent in a cartel to Halifax, and the remainder, about 300 in number, were carried into France and Spain. The British bank fisheries in Newfoundland recovered following the signing of the Treaty of Amiens in March 1802, and in that year, 71 Newfoundland and 58 British "banker" vessels prosecuted the fisheries on the Grand Banks. They declined again with the outbreak of war in 1803 and recovered somewhat after the Battle of Trafalgar in October 1805, but declined again during the Anglo-American war of 1812–14.