Review of the effects of organic pesticides on enchytraeids (Oligochaeta) in agroecosystems – laboratory and higher-tier tests

Enchytraeids (Oligochaeta, Annelida) are regularly found in agroecosystems of the temperate regions of the world. Although less known than their larger relatives, the earthworms, these saprophagous organisms play similar roles in agricultural soils influencing soil structure and organic matter dynamics and having a central place in soil food webs. Due to difficulties in distinguishing the […]

New publication: Survival, reproduction, growth, and parasite resistance of aquatic organisms exposed to wastewater treated by advanced treatment processes

Advanced wastewater treatment processes are known to be an effective tool for reducing micropollutant discharge into the aquatic environment. Nevertheless, some processes such as ozonation result in stable transformation products with often unknown toxicity. In the present study, effluents from different steps of advanced treatment were compared for their aquatic toxicity. Lumbriculus variegatus, Daphnia magna […]

Validation of a sediment toxicity test with the endobenthic aquatic oligochaete Lumbriculus variegatus by an international ring test

The aim of the project was the validation of a sediment toxicity test with the benthic oligochaete Lumbriculus variegatus by an international ring test. The test method was developed taking into account existing methods. A test protocol was prepared and used to run the test. A total of 14 institutions (governmental agencies, universities, contract laboratories […]

Assessing the long-term effects of the selected nanomaterial titanium dioxide – adaptation of testing procedures

Effects of the nanomaterial titanium dioxide NM-105 were studied in a sediment/water system with Lumbriculus variegatus according to OECD test guideline 225. Test media were prepared by mixing NM105 suspensions and the sediment-overlying water. Nominal test concentrations were confirmed by chemical analysis of Ti concentrations in the test media. Effects of NM-105 were also investigated […]

Sediment contact tests as tool for the assessment of sediment quality in rivers and lakes (SeKT)

In current bioassay approaches for assessing sediment toxicity, whole organisms or in vitro systems are exposed to various sediment fractions (e.g. whole sediment, pore water, extracts) considering different exposure scenarios. Whole-sediment exposure protocols represent the most realistic scenario. However, until now the interpretation of sediment contact test results is associated with uncertainties due to the […]

Cause-effect relations of key pollutants on the European rivers biodiversity (KEYBIOEFFECTS)

The overall objective of the Research and Training Network KEYBIOEFFECTS was to provide young scientists with the skills and knowledge needed to assess the effects of pollution on the biodiversity of European rivers and to transfer this knowledge to different stakeholder groups. Recognizing the importance of understanding cause-effect relationships in protecting biodiversity, KEYBIOEFFECTS focused on […]

Models for Assessing and Forecasting the Impact of Environmental Key Pollutants on Marine and Freshwater Ecosystems and Biodiversity (MODELKEY)

The Water Framework Directive of the European Union requires a good ecological status of the European water bodies by 2015. One of the driving forces for an insufficient ecological status and reduced biodiversity of freshwater and marine ecosystems is chemical stress due to environmental pollutants. The project MODELKEY aims to contribute to the assessment, understanding […]