Parsa M, Emery TJ, Williams AJ, Nicol S (2020) An empirical Bayesian approach for estimating fleet- and vessel-level bycatch rates in fisheries with effort heterogeneity and limited data: a prospective tool for measuring bycatch mitigation performance. ICES J Mar Sci 77:921–929. https://doi.org/10.1093/icesjms/fsaa020