Summary
Using modeling (specifically Bayesian multilevel network meta-regression modelling), this study presents a synthesis of the effectiveness of alternative pelagic longline weighting in mitigating seabird bycatch. There is a high probability (97%) that all weighting designs do reduce seabird bycatch when compared to no weight, but the designs with weights >60g and >1m from the hook performed significantly better than designs with less weight but attached closer to the hook.