Using closed chamber respirometry we estimated the aerobic metabolic rate of an aquatic ectotherm, the Atlantic ditch shrimp Palaemonetes varians, under varying thermal conditions. We continuously measured oxygen consumption of shrimp during heating, cooling, and constant temperatures, starting trials at a range of acclimation temperatures and exposing shrimp to a variety of rates of temperature change. Data corrections and associated methodologies are detailed fully in the accompanying manuscript. ## Description of the data and file structure Stable temperature trial data found in stable_trials_raw.csv Ramping temperature trial data found in ramping_trials_raw.csv Both datasets include the respirometry data for all temperature trials, with dissolved oxygen concentration corrected for background respiration ("doconc_corr") following the methodology outlined in the associated manuscript. Identification number of the individual is stored under "ID", time from start of trial to end of trial (in minutes) is stored under "time_min" and temperature of the chamber (in degrees Celcius) is stored under "temp_degC".