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Near streambed flow shapes microbial guilds within and across trophic levels in fluvial biofilms ...

Near streambed flow shapes microbial guilds within and across trophic levels in fluvial biofilms Risse-Buhl, U., Anlanger, C., Chatzinotas, A., Noss, C., Lorke, A., Weitere, M., (2020), Limnol. Oceanogr. 65(6). doi:10.1002/lno.11451

This study links flow heterogeneity in mountainous stream ecosystem to the diversity and functioning of fluvial biofilms. With increasing flow fluvial biofilms shifted towards increasing autotrophy, while trophic structure shifted towards a decreasing importance of grazer control.

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Streamside mobile mesocosms (MOBICOS): A new modular research infrastructure for hydro-ecological process studies across catchment-scale gradients ...

Streamside mobile mesocosms (MOBICOS) Fink, P., Norf, H., Anlanger, C., Brauns, M., Kamjunke, N., Risse-Buhl, U., Schmitt-Jansen, M., Weitere, M., Borchardt, D., (2020), Int. Rev. Hydrobiol. 105 (3-4). doi:10.1002/iroh.201902009

MOBICOS is UFZ's research infrastructure that allows analysing the effects of stressors and stressor combinations through multifactorial experiments in near natural settings and across anthropogenic pressure gradients combined with in situ real time monitoring. It has the potential to advance our understanding of causal relationships between natural environmental oscillations, anthropogenic stressors and their combined ecological impacts on aquatic ecosystems.

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Metatranscriptomics from a small aquatic system: microeukaryotic community functions through the diurnal cycle ...

Metatranscriptomics from a small aquatic system Trench-Fiol, S., Fink, P. (2020), Front. Microbiol. 11:1006. doi:10.3389/fmicb.2020.01006

Aquatic Microbial Ecology: Diurnal cycles of protist community ecosystem functions in a pond. Combining a metatranscriptomics approach with environmental measurements yields insights into the functional metabolic processes performed by the microeukaryotic community of a small freshwater ecosystem that had so far been only investigated on the open ocean scale.
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Molecular change of dissolved organic matter and patterns of bacterial activity in a stream along a land-use gradien ...

Molecular change of dissolved organic matter Kamjunke, N., Hertkorn, N., Harir, M., Schmitt-Kopplin, P., Griebler, C., Brauns, M., von Tümpling, W., Weitere, M., Herzsprung, P., (2019) Water Res. 164: 114919. doi:10.1016/j.watres.2019.114919

We developed techniques to couple molecular changes of the DOM profile in streams with bacterial activity. This was applied here to demonstrate the dynamics along a land use gradient. After an initial decrease of molecular DOM diversity in natural catchments, the number of DOM components increased downstream due to agriculture and waste water.

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