By region, similarity percentages (SIMPER) results tables for all significant relationships observed among examined time periods.

<p>Average dissimilarity (Av. Dissim), percent contribution (Contrib. %), and cumulative percent contribution (Cumul. %) for all major species (i.e., cumulatively up to 90% through SIMPER analysis) contributing to significant differences in species composition for biomass, landings, and revenue among pre-event, event, and post-event periods (as examined through analysis of similarity testing). For eastern Bering Sea (EBS), Gulf of Alaska (GAK), northern California, and Pacific Northwest ecosystems, tests of significance in values were conducted for time periods ten years prior to the Pacific marine heatwave (“Blob”), over the duration of the heatwave, and post-heatwave. For the Gulf of Maine, differences in values were examined among time periods ten years prior to the onset of an accelerated warming period for the Gulf of Maine, during the accelerated warming period and prior to a subsequent marine heatwave and noted spike in temperatures, and for years following the heatwave and during the temperature spike. For the northern Gulf of Mexico, tests were conducted for time periods ten years prior to Hurricane Katrina, during the post-hurricane period prior to the Deepwater Horizon (DWH) oil spill, and post-DWH event. All species with Contrib. % values greater than 1.0 are in bold. Italicized species names indicate that a mean increase (shown as +) was observed between at least one period for a species with a Contib. % greater than 1.0 for a given variable.</p> <p>(DOCX)</p>