| Autor: |
Lehtonen, Kari, Ahvo, Aino, Berezina, Nadya, Breitholtz, Martin, Eklund, Brita, Jørgensen, Kirsten, Strand, Jakob, Sundelin, Brita |
| Jazyk: |
angličtina |
| Rok vydání: |
2015 |
| Zdroj: |
Lehtonen, K, Ahvo, A, Berezina, N, Breitholtz, M, Eklund, B, Jørgensen, K, Strand, J & Sundelin, B 2015, ' Evaluation and selection of test methods for assessment of contaminated sediments in the Baltic Sea : – first results of the CONTEST project ', Contaminated Sediments, Ascona, Switzerland, 08/03/2015-13/03/2015 . |
| Popis: |
The purpose of the CONTEST project (2014-15) is to test, develop, evaluate and select suitable biological methods to be applied in the quantitative and qualitative assessment of toxicity of anthropogenically contaminated sediments in the Baltic Sea marine region. Here is presented results from a set of pilot experiments, which were performed by the participating laboratories. Chemical analysis of the contaminated harbour sediment chosen as the test matrix confirmed the presence of high concentrations of polycyclic aromatic hydrocarbons, organotins and trace metals, and the sediment was diluted according to the results obtained from the preliminary amphipod toxicity test. The following tests using whole sediments or sediment elutriates were performed: amphipod survival (Corophium volutator, Gmelinoides fasciatus), copepod survival (Nitocra spinipes), Daphnia magna survival (acute toxicity), sediment avoidance (C. volutator), bacterial luminescence (Vibrio fischeri), algae growth inhibition (Pseudokirchneriella subcapitata, Ceramium tenuicorne), SOS/umu genotoxicity (Salmonella) and imposex in female gastropods (Nassarius reticulata). The results of this first round of experiments showed large variability in the sensitivity of the different biotests. Most of the tests applied showed concentration-dependent effects on the test organisms. New experiments will be carried out in 2015.The CONTEST project is funded by the Nordic Council of Ministers and the Finnish Ministry of the Environment. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
