Workshop on the production of swept-area estimates for all hauls in DATRAS for biodiversity assessments (WKSAE-DATRAS). ICES Scientific Reports, 3:74.
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AuthorsArronte-Prieto, J.C. (Juan Carlos); Baldó, F. (Francisco); Börjesson, P. (Patrik); Burns, F. (Finlay); Chaves, C. (Corina); Gillespie-Mules, R. (Ruadhán); Kavanagh, A. (Ailbhe); Kelly, R. (Ruth); Kempf, J. (Jed); Kvaavik, C. (Cecilia); Ludwig, K. (Kim); Melli, V. (Valentina); Moriarty, M. (Meadhbh); Rindorf, A. (Anna); Salvany, L. (Lara); Seixas, S. (Sonia); Sell, A. (Anne); Soni, V. (Vaishav); Travers-Trolet, M. (Morgane); Velasco, F. (Francisco); Wieland, K.U. (Kai Ulrich); Zhai, H. (Hongru)
Editor/sWieland, K.U. (Kai Ulrich)
The workshop on the production of swept-area estimates for all hauls in DATRAS for biodiver-sity assessments (WKSAE-DATRAS) considered three groups of surveys for which data are sub-mitted to the Database of Trawl Surveys (DATRAS): various Beam Trawl Surveys, the Northeast Atlantic International Bottom Trawl Survey (Northeast Atlantic IBTS), and the North Sea Inter-national Bottom Trawl Survey (North Sea IBTS). All countries contributing to the above-mentioned surveys were represented by at least one par-ticipant during the workshop, apart from the Netherlands and Norway. The main objectives of the workshop were to establish tow-by-tow swept-area estimates for time-series as far back in time as possible, compare different approaches for the estimates of missing observations, and harmonize the resulting dataseries for biodiversity assessments. For all of the surveys considered, problems with data quality were detected. This included the Beam Trawl Surveys but was most pronounced for ...
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