ExStream experiment

The ExStream experiment is an outdoor mesocosm system. Stream water is pumped into header tanks, from which it feeds up to 128 circular mesocosms where stressors can be applied. In RESIST phase I we also developed an innovative heating solution to apply temperature as a stressor (Madge Pimentel et al., 2023).

We tested effects of three stressors (temperature increase, salinization, and reduced flow) on different organism groups and ecosystem functions in the ExStream main experiments 2022 and 2023 (see Madge Pimentel et al., 2024).

Effects of flow velocity on selected community metrics and ecosystem functions in an ExStream experiment (redrawn from Madge Pimentel et al., 2024).