Timing of sampling and duration of pre-exposure of mesh bags and tiles (2014) or nutrient diffusing substrates (2015). The start of the flow event is set as day 0. Sampling 1 was performed before the onset of the flow event. MB = mesh bags, NDS = nutrient diffusing substrates.
|Year||Round||Exposure of tiles/NDS in flumes||MB in stream||MB in flumes||Sampling 1||Flow event||Sampling 2|
|2014||1& 2||−13||−6 to −3||−3||0||0–3||7|
|2015||1*||−3||−6 to −3||−3||0||0–3||8|
|2015||2**||−7||−11 to −7||−7||0||0–3||7|
Pre exposure time had to be reduced compared to 2014 due to a partial collapse in the supporting structure of the flumes.
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