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ICES Survey Protocols
The impetus for all the beam trawl surveys in this manual is the need for fisheries-independent information on commercial flatfish species. The prime target species and type of beam trawl are set depending on the survey area and/or the relevance of the species for the national or EU fisheries. Nowadays, one of the driving forces for the EU countries involved in the surveys is the data needs specified by DCF (Data Collection Framework). Over time, data collection within the surveys has expanded due both to a shift towards a more ecosystem-related general focus and to new data requests by end-users. As a consequence, the collection of epibenthos data has become more detailed over time and age data are collected for more species than at the time the surveys were developed.
