<p>Analysis excludes pelagic species. (A) Annual landings from the English Channel. (B) Changes in the mTL over time. (C) Changes in the FiB index over time. The blue dashed line is a smoothing function, “supsmu” <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0101506#pone.0101506-Friedman1" target="_blank">[50]</a> available as standard with the R software package <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0101506#pone.0101506-R1" target="_blank">[51]</a>.</p