Concurrent sampling: a view from the experience of the Spanish sampling programme
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Keywordsconcurrent sampling, DCF, length
IEO has been asked by RCM NA to provide an evaluation of the concurrent sampling carried out from 2009 following EU Data Collection Framework. Given that IEO has always applied the concurrent sampling on board (as part of the Discards Sampling Programme), the present document refers exclusively to the on-shore sampling. It has to be noted that some of these considerations were already presented to the Workshop on Implementation Studies on Concurrent Length Sampling (WKISCON2) as requested by ICES. So some figures are taken from the work developed there, based on the 2008-2014 data series provided by IEO. Considerations on quality issues (not addressed by WKISCON2) are presented as part of a case study focused on the Northern Spanish coastal small-scale gillnets fleet.