Boxplots of mortality percentage within broods of Japanese mystery snail (Heterogen japonica) juveniles at day 4 of the experiment, which was the 50% mortality date for groups in the 38 °C treatment, and the end of the experiment. The mortality measurements taken at day 4 were grouped by temperature –p < 0.0001 (A) and salinity – p = 0.33 (B). Mortality measurements taken at day 14 were also grouped by temperature – p < 0.0001 (C) and salinity – p = 0.01 (D). P-values indicate the overall significance of the generalized linear model, and bars with significant differences, as determined by Pairwise Wilcox comparison tests, are denoted by differing lowercase letters. Edges of the boxes indicate the upper quartile, median, and lower quartile, while the whiskers extend a length of 1.5 times the interquartile range. Dots represent outliers.