Reinforcement and Validation of the Analyses and Conclusions Related to Fishway Evaluation Data fromBunt et al.: ‘Performance of Fish Passage Structures at Upstream Barriers to Migration’

Detailed re-examination of the datasets that were used for a meta-analysis of fishway attraction and passage revealed a number of errors that we addressed and corrected. We subsequently re-analysed the revised dataset, and results showed no significant changes in the primary conclusions of the original study; for most species, effective performance cannot be assured for any fishway type.