Experimental and modelling studies from the laboratory to the field

Our team has more than 20 years of experience in carrying out ecotoxicological tests of varying complexity. Our portfolio ranges from single-species laboratory tests to more complex multi-species tests under standardized conditions to complex field studies in aquatic mesocosm ponds or in terrestrial model ecosystems (TME) with intact soil cores. We take into account the ecological requirements for the test organisms and test systems while considering the practicability and reproducibility of the test results. On the one hand, we routinely apply existing standard procedures, on the other hand, we also work on optimisation of existing methods and development of new test procedures (e.g. procedures for the testing of mayflies, or passive dosing procedures for biotests with poorly soluble substances).


Aquatic Ecotoxicology
Mechanistic effect modelling
Terrestrial Ecotoxicology
Difficult substances

Good Laboratory Practice


Taxonomic expertise

Our expertise

Mesocosm Studies

More than 3 decades experience in outdoor mesocosm studies

TME Studies

Long-term experience in terrestrial model ecosystems (TME) under outdoor conditions

Standard laboratory tests

Standard laboratory tests with green alga, duckweeds, daphnids and snails are part of our standard portfolio

Non-standard laboratory tests

Non-standard laboratory tests with mayflies, waterlouses, amphipods and cladocerans are part of our daily business

Field studies

Field studies with plant communities and soil organisms profit from our long-standing taxonomic expertise

Statistical evaluation

Our comprehensive statistical expertise in univariate and multivariate methods is available for your data evaluation

Effect modelling

We offer made-to-measure ecological models for environmental risk assessment. For specific species ready-to-use models are available.

Recent News

14.10.2021 in News

We are strengthening our team!

We would like to strengthen our team and are currently looking for an ecotoxicologist in the field of aquatic ecotoxicology and an employee for quality assurance under GLP (part-time). You…
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12.10.2021 in News

The gaiac team is growing

Das gaiac-Forschungsteam hat sich in den letzten Jahren vergrößert und  unsere Aufgabenfelder sind vielfältiger und umfangreicher geworden. In unserem neuen Webauftritt stellen wir Ihnen übersichtlich und wohl strukturiert unsere Forschungsgebiete…
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28.06.2021 in Ecotoxicology

PROSOIL Expert Workshop

On June 23/24, 2021, in cooperation with darwin statistics and the German Environment Agency gaiac conducted a joint Expert Workshop (online) to discuss the results of the Prosoil project with…
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We look forward to hearing from you!