Faroe Islands and the European Union Schengen Area are not subject to border controls, although there may be identity checks when checking in for flights. Charges for international services such as phone roaming and bank transfers are much higher than inside the EU. In July 2013 EU imposed sanctions on the Faroe Islands due to a dispute over the fishing quota of herring and mackerel. The boycott which started on 28 August 2013 banned Faroese vessels carrying herring or mackerel from all EU ports, including Denmark, Sweden and Finland. The Faroe Islands could no longer export herring or mackerel to EU countries. The boycott was lifted
Longline fishing or along the sea floor (demersal longline) for groundfish such as halibut or cod. Longliners fishing for sablefish, also referred to as black cod, occasionally set gear on the sea floor at depths exceeding using relatively simple equipment. Longlines with traps attached rather than hooks can be used for crab fishing in deep waters. Longline fishing is prone to the incidental catching and killing of dolphins, seabirds, sea turtles, and sharks, but can be considerably more ecologically sustainable than some other commercially significant harvesting methods. Longline fishing is controversial in some areas because of bycatch, fish caught while seeking another