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.

Related News

short news

Of Colour and Light: When Art meets Science

Six tanks filled with water of River Spree and exposed to differently-colored artificial light: this is the core element of an art installation shown from July 5th to September 2nd 2018 in Berlin-Charlottenburg.
press release

Light pollution a reason for insect decline!?

Climate change, pesticides and land use changes alone cannot fully explain the decline in insect populations in Germany. Artificial lighting at night could be another reason for declining insect populations.
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New Leopoldina discussion paper on pesticides

Pesticides can cause big problems in ecosystems. That is the result of a new discussion paper of German National Academy of Sciences Leopoldina, in which effects of pesticides and options for action are explained based on recent scientific results.

Related Projects

Urban Water Interfaces

DFG Research training group  
Contact person
Gunnar Nützmann
Mark Gessner
Sabine Hilt
Department
(Dept. 1) Ecohydrology
(Dept. 2) Ecosystem Research
(Dept. 3) Experimental Limnology
(Dept. 6) Chemical Analytics and Biogeochemistry
Start
07/2015
End
12/2019
Topic

ILES

Skyglow, the diffuse illumination of the night sky by artificial light, has never before been experienced during evolutionary history. Together with another feature of global change – the brownification of lakes caused by humic substances – skyglow disrupts the current light conditions in lake ecosystems. We will elucidate the ecological consequences of these phenomena and the mechanisms underlying them.
Contact person
Mark Gessner
Franz Hölker
Department
(Dept. 1) Ecohydrology
(Dept. 2) Ecosystem Research
(Dept. 3) Experimental Limnology
(Dept. 4) Biology and Ecology of Fishes
(Dept. 5) Ecophysiology and Aquaculture
Start
07/2015
End
06/2018
Topic

IWRM Joint Research Project MoMo III

The MoMo III project works towards the development and implementation of an integrated water resources management (IWRM) for a Mongolian model region.
Contact person
Jürgen Hofmann
Department
(Dept. 1) Ecohydrology
Start
06/2015
End
05/2018
Topic

Related Downloads

Urban Water Interfaces (UWI) Research Aligned In Common Topics

Current research carried out by doctoral students within the interdisciplinary research training group "Urban Water Interfaces" (UWI), a joint initiative of TUB and IGB.

Loss of the Night

Transdisciplinary Research on Light Pollution

MONERIS

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

Experts at IGB

Franz Hölker

Research Group Leader
Working group
Light Pollution and Ecophysiology

Ilka Lutz

Research Group Leader
Working group
Effects of Endocrine Active Substances

Thomas Meinelt

Research Group Leader
Working group
Fish Pathology, Ecotoxicology and Stress Ecology

Matthias Stöck

Research Group Leader
Working group
Evolutionary Biology and Ecotoxicology of Amphibians and Fish

Markus Venohr

Research Group Leader
Working group
Nutrient Balances in River Basins

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