Multiple Stressors & Pollutants

Freshwaters are used intensively by humans, meaning that they are exposed to a number of stressors. We explore the complex interrelations and impacts of the different stressors: How do nutrients and contaminants enter our surface waters, which factors play a central role in this process, and where are rivers and lakes in a particularly poor state? Nutrient inputs of nitrogen and phosphate, for example, may affect water quality, leading to algal blooms. It is often impossible to completely remove pharmaceuticals and biocides during wastewater treatment. They then end up in rivers and lakes, where they may affect the hormonal metabolism of fish and amphibians. Mining may lead to the contamination of adjacent freshwaters with potash and sulphate. Land use change, urbanisation, water control structures and the increasing use of artificial lighting at night (light pollution) exert additional pressure on our freshwaters. In our research, we acknowledge that use by humans is an important part of reality – only then can future-oriented solutions be developed.

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Related Projects

Host−parasite interactions in hybridizing Daphnia

Eutrophication is a worldwide environmental problem accelerated by global warming, affecting the stability of aquatic ecosystems and having long-lasting consequences. In this project we investigate if and how eutrophication affects two interacting evolutionary processes: disease spread and interspecific hybridization.
Contact person
Justyna Wolinska
Department
(Dept. 2) Ecosystem Research
Start
01/2017
End
12/2019
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MARS

Our surface and groundwaters struggle with a variety of different pressures, like water shortage, flow regulation, straightening or sediment and nutrient loading. The project MARS analyses how the combination of these stressors impacts aquatic ecosystems and their functions.
Contact person
Markus Venohr
Department
(Dept. 1) Ecohydrology
(Dept. 3) Experimental Limnology
(Dept. 4) Biology and Ecology of Fishes
Start
03/2014
End
02/2018
Topic

Factors controlling the mobilization of organic matter,

The main objective of this project is to identify the key-factors of organic matter turnover in inundated peatlands. Based on our findings we might improve our predictions regrading the restoration of degraded peatlands.
Contact person
Hendrik Reuter
Dominik Zak
Department
(Dept. 6) Chemical Analytics and Biogeochemistry
Start
04/2014
End
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Loss of the Night

Transdisciplinary Research on Light Pollution

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City, country, river: modelling and managing nutrient pollution in lakes and rivers

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