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
Fishing on Lake Victoria authorities were debating the overall ecological efficiency of the lake. For many authorities at this time, the lake needed a large and efficient predator to turn haplochromine fish stocks into something more economically valuable. The prime candidate was the Nile perch ("Lates niloticus"). Arguments in favour of introducing a predator was as follows: The arguments against its introduction were as follows: While the argument continued, it was agreed that tilapia stocks needed bolstering largely as a result of increasing fishing pressure on indigenous species, associated with the expansion of the market for fresh fish in the 1940s. Tilapia introductions started