The ban will apply until the end of the 2010 fishing season, explained European Commission spokesman Oliver Drewes.
The ban applies to ships with large fishing nets, called purse seines, that hang vertically in the water with weights along the bottom edge and floats along the top, making it easier to make quick, big catches.
The fishing season started on 15 May and was due to last until 15 June.
Damanaki decided to order the purse seiners back to port after data from the Commission's in-house control room and inspectors from the International Commission for the Conservation of Atlantic Tunas (ICCAT) showed that the seiners were about to reach their 2010 quotas.
According to Commission's scientific advice, seiners would have overfished by today (10 June), Drewes said, explaining that the decision to close the season for industrial tuna fishing was taken to prevent overfishing.
Major tuna fishing countries, including France, Spain and Greece, have been informed of the decision.







