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
Oil pollution toxicity to marine fish Oil pollution toxicity to marine fish Oil pollution toxicity to marine fish has been observed from oil spills such as the "Exxon Valdez" disaster, and from nonpoint sources, such as surface runoff, which is the largest source of oil pollution in marine waters. Crude oil entering waterways from spills or runoff contain polycyclic aromatic hydrocarbons (PAHs), the most toxic components of oil. The route of PAH uptake into fish depends on many environmental factors and the properties of the PAH. The common routes are ingestion, ventilation of the gills, and dermal uptake. Fish exposed to these PAHs exhibit an array