Average oxygen consumption rates for Potamopyrgus antipodarum at different acclimation times (0–10 days) when the snail was exposed at different water temperatures (10 and 20 °C) and at different salinities. Different letters indicate significantly different oxygen consumption rate (p < 0.05 GLM-ANCOVA, Tukey post hoc comparisons) between salinity treatments within each acclimation time. Snails were collected during spring. Rates were measured between 50–75% air saturation.