Fig. 3. Acclimation and acclimatisation in Halozetes belgicae at (A) weekly timescales; after 1 week acclimation at 10°C (white bars) and 5°C (black bars); (B) seasonal timescales – snapshot samples of field-fresh animals on the 5 February (white bars), 12 February (grey bars) and 28 February (black bars); (C) diurnal timescales: snapshot sampling of field-fresh animals over 7–11 February; filled circles, mean temperature of the rock surface for the 4 h prior to sampling; open circles, median SCP. Values are means ± s.e.m. (for N values, see text).