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

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.
short news

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

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

Sulphate in River Spree and Lake Müggelsee

Scientific investigations in mining landscape on the example of the problem "Brown Spree". Long-term development of sulphate concentration in the Spree and Müggelsee ...
Contact person
Jörg Gelbrecht
Thomas Rossoll
Department
(Dept. 6) Chemical Analytics and Biogeochemistry
Start
05/2015
End
12/2020

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

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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