Fig. 5. Mortality in temperature and salinity acclimation treatment groups. There was nearly equal mortality of M. edulis (e) and M. trossulus (t) in 2003, regardless of acclimation treatment, and both species had greater mortality at the warmer acclimation temperature. In the following year, M. trossulus had equivalent mortality at the 14°C acclimation and decreased mortality under 7°C acclimation, reinforcing the positive relationship between acclimation temperature and mortality. Only three M. galloprovincialis (g) individuals died in both acclimation years (out of 348 total), and all three were from the 21°C acclimation in 2003 (M. galloprovincialis 2004 is not included in the graph because there was no observed mortality).