Fig. 6. Cell centroid positions were tracked over a total time of 15 min at 15 s intervals for 20-21 cells at each experimental condition. For population comparisons, each cell's path was plotted as a separate colored line beginning at the origin and reoriented so that the first segment of any trajectory is along the y-axis (x=0). Trajectories of each cell measured are shown at 10°C and 20°C for all acclimation groups of all species. Systematic variations in both speed and turning behavior are apparent.

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