English: Temperature sensitivity of gross primary production (GPP) and respiration (R) based on average activation energies reported in Yvon-Durocher et al. (2012). As water temperature increases, R increases more rapidly than GPP due to the higher average activation energy for R. In this figure, GPP and R temperature responses are reported as relative to GPP and R rates at 15℃. A doubling of metabolic rates compared to metabolic rate at 15℃ (horizontal dashed line) occurs with just a 7.6℃ increase for R but requires a 14.8℃ increase to double GPP.
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