Figure 3. Reproduction on algae with and without EAA addition – exp. 2.

Cumulative production of subitaneous eggs (A) and ephippia (resting eggs, B) by D. pulex fed either Cryptomonas, Chlamydomonas, Chlamydomonas with the addition of dissolved arginine, histidine or both arginine and histidine at concentrations of 25 µmol L⁻¹; egg numbers are means of n = 3 ± SD; identical lowercase letters indicate no significant difference after Tukey's post-hoc HSD test following one-way ANOVA.