Figure 1.

Size at first reproduction (SFR) and juvenile somatic growth rate g of Daphnia magna grown in the presence or absence of fish kairomones. Daphnia were exposed to control water extract (open bars) or to fish incubation water extract (filled bars) in light or dark. (a) Size at first reproduction (SFR; n = 3, mean ± s.e.), (b) Juvenile somatic growth rate g (n = 3, mean ± s.e.). Different letters denote a significant difference (p < 0.05) between the treatments. (Online version in colour.)