Outputs of EcoTroph simulations of increasing or decreasing fishing efforts or mortalities: (a) changes in the biomass trophic spectrum (t km⁻² per trophic classes); (b) relative biomass of various trophic classes expressed as a function of the fishing effort multiplier (standardized to 1 for mE = 1); (c) total catches (t km⁻² yr⁻¹) for all groups, for all groups whose trophic level is higher than 2, and for all groups whose trophic level is higher than 3.5; (d) relative catch for various trophic classes expressed as a function of the fishing effort multiplier (standardized to 1 for mE = 1).