Comparison of modelled and observed proportions discarded.

<p>Mean observed proportions of catch discarded from the ICES data in the case of the reference species (averaged over 2001–2010), and from fragments of data harvested from the literature in the case of all other species (<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0117078#pone.0117078.s009" target="_blank">S3 Table</a>). Estimated proportion discarded averaged over 2001–2010 from the reduced model in all cases. Horizontal dashed lines indicate ± 1 s.d. of logit transformed observed data. Red circles: reference species; blue circles: all other species. Black line indicates the 1:1 relationship.