The Member States referred to in Article 25 shall limit bottom fishing effort or catch in the SPRFMO Convention Area to the average annual levels over the period from 1 January 2002 to 31 December 2006 in terms of the number of fishing vessels and other parameters that reflect the level of catch, fishing effort and fishing capacity and to only those parts of the SPRFMO Convention Area where bottom fisheries has occurred during the previous fishing season.