Thermal plasticity of setae of the second limb of Daphnia

These data are associated with a study that tests the hypothesis of thermal plasticity in the rigid setae of the second limb of Daphnia. The data are body size and length measurements (mm) of three limb setae (limb 2; endite 2). The second seta is often called the \"rigid\" seta because it is heavily chitinized. In all, 300 specimens of Daphnia (including Daphnia umbra and Daphnia galeata) were dissected from four sets of clonal thermal transfers and seasonal variants from nature. Specimens of D. galeata were cultured under identical conditions save temperature (10 and 20◦C). Clonal neonates were reciprocally transferred across temperature regimes to determine the degree of postnatal plasticity.