Average population biomass (in µg L −1) at day 30 in different competition and salinity scenarios.

Panels represent three competition scenarios, which differ in the order of inoculation of the species (see text for codes). Competitor species are shown as black (Daphnia galeata) and white (Simocephalus vetulus) bars. Error bars represent 95% confidence intervals of the mean (n = 3 experimental microcosms).