Potential socioeconomic impacts from ocean acidification and climate change effects on Atlantic Canadian fisheries

S1 Fig. DBEM projections for OA and RCP treatments. Each species is presented in four fig- ures representing: RCP 2.6 ‘with O,’ RCP 2.6 ‘without OA,’ RCP 8.5 ‘with OA’ and RCP 8.5 ‘without OA,’ respectively. Species are presented as follows: a-d = American oyster; e-h Ameri- can lobster; i-l sea scallop; m-p eastern blue mussel; q-t northern shrimp; u-x snow crab; and y-ab Stimpsons’ surf clam. Each figure includes: top left–species graphic; top right–relative change for management areas. Scale is the same for each figure; therefore, species which extend beyond 25% change in either direction go beyond the figure axes (note data separates NAFO subareas that border DFO management areas (i.e. 4R and 4Vn), line colours corre- spond to distribution map in bottom left). Bottom left–DBEM predicted distribution for base- line year 2000 (averaged 1991–2010). Management borders outline colour corresponds to relative change in top right panel. Bottom middle–relative change in 2050 (average 2041– 2060) compared to 2000 (average 1991–2010). Bottom right–relative change for 2090 (average 2081–3000) against 2000 (average 1991–2010). Note that colour scales presented in bottom- middle and bottom-right panels are relative changes within individual data cell. An artefact of this was that cells which had zero presence in 2000 but gained presence in future time steps had an infinite increase in catch potential; therefore, all increases above 100% were presented as 100%. Relatedly, the vast majority of the cells that experience 100% increases or decreases

represent small baseline inputs (as per the bottom right panel). (ODS) S2 Fig. Alternate framework orientations for sensitivity testing. Letters correspond to sensi- tivity testing risk outcomes in S4 Table (TIF) S4 Table. Risk index results for 3 alternative weighting schemes. Framework orientations schematics presented in S2 Fig. (ODS) Acknowledgments TJBW would like to thank Michael Gardner for sharing his time and expertise regarding the structure and operation of Atlantic Canadian fisheries. Author Contributions Conceptualization: Tyler J. B. Wilson, Sarah R. Cooley, Peter H. Tyedmers. Data curation: Tyler J. B. Wilson, Travis C. Tai, William W. L. Cheung. Funding acquisition: Tyler J. B. Wilson, Travis C. Tai, William W. L. Cheung, Peter H. Tyedmers. Investigation: Tyler J. B. Wilson. Methodology: Tyler J. B. Wilson, Sarah R. Cooley, Travis C. Tai, William W. L. Cheung, Peter H. Tyedmers. Supervision: Peter H. Tyedmers. Visualization: Tyler J. B. Wilson, Sarah R. Cooley, Peter H. Tyedmers. Writing – original draft: Tyler J. B. Wilson. Writing – review & editing: Tyler J. B. Wilson, Sarah R. Cooley, Travis C. Tai, William W. L. Cheung, Peter H. Tyedmers. OA and climate change impacts on Atlantic Canadian fisheries PLOS ONE | https://doi.org/10.1371/journal.pone.0226544 January 10, 2020 26 / 29