Mean concentrations of haemolymphatic [Cl⁻](mmol L⁻¹) in <i>Gammarus pulex.</i>

<p>Concentrations obtained for individuals exposed 96 h to different conditions (control, arsenate, cadmium and four binary mixtures) at three temperatures (5-10-15°C). <b>a) </b><b><i>Temperature × condition effect:</i></b> Mean haemolymphatic [Cl⁻] for each tested condition and temperature. Vertical bars represent standard deviations. <b>b) </b><b><i>Condition effect:</i></b> Weighted mean haemolymphatic [Cl⁻] for each tested condition (results for all the tested temperatures were combined). Vertical bars represent 0.95 confidence intervals. <b>c) </b><b><i>Temperature effect:</i></b> Weighted mean haemolymphatic [Cl⁻] for each temperature (results for all the tested temperatures were combined). Vertical bars represent 0.95 confidence intervals. Letters (a to g) were used as labels to illustrate significant differences in values of mean haemolymphatic [Cl⁻] (two-way ANOVAs + LSD Fisher post hoc tests; at p<0.05 level of significance).