Impacts of dredged material disposal on macrobenthic invertebrate communities: A comparison of structural and functional (secondary production) changes at disposal sites around England and Wales

► Disposal significantly reduced total secondary production at seven of the 14 sites. ► These seven sites were generally those displaying significant structural impacts. ► No disposal sites displayed significant increases in total production estimates. ► No clear relationship between multivariate structural and functional changes. ► Non-significant multivariate changes may not mean no significant functional impact.