Aquatic ecotoxicological test

Chemical pollutants versus aquatic ecotoxicological tests... 

Chemical pollutants vs. aquatic ecotoxicological tests vs. nematode sediment contact test... 

According to the evaluations of Elbe sediments by raw data of a) aquatic ecotoxicological tests, b) chemical measurements, and c) nematode sediment contact tests in Fig. 3, clustering results by means of all parameters simultaneously (i.e. over the whole property space) for each of the groups and additional partial ordering is shown in Fig. 7. A common characteristic for both chemical and ecotoxicological tests is, that... 

In contrast to the partial orders from chemical concentrations and aquatic ecotoxicological tests, the results of the sediment contact tests with nematodes lead to a total order. This corresponds to a correlation analysis that shows a significant correlation between growth, reproduction and egg hatch (r=0,7). 

Aquatic ecotoxicological tests versus chemical pollutants... 

In contrast to the above made comparisons of quality patterns by chemical concentrations and aquatic ecotoxicological test results for 62 sections (sites) of the River Elbe (see Fig. 6), here we will use attribute-wise clustering to look at temporal changes of only one river section. Afterwards the results of evaluation by a) the nematode test and b) biochemical tests will be compared with the chemical and aquatic ecotoxicological approaches. 

According to the clustering over the whole property space the evaluation by nematode tests after single clustering will be compared with those of chemicals and aquatic ecotoxicological tests too. However, here the sample set includes additional samples from River Oder due to relatively few samples from River Elbe (nematodes tests started in 2000 only). 

In a review on Microbiotests in aquatic ecotoxicology, Blaise [28] comments on 25 different test procedures with bacteria, protozoa, microalgae, invertebrates, and fish cell lines, worked out and used to date by different research laboratories. When examining each of these tests from the point of view of practical features according to five criteria (availability in kit... 

Aquatic ecotoxicology evaluates the probability of an adverse impact of a substance on the aquatic environment at the present as well as in the future, considering the total flow into the system (Klein, 1999). It encompasses laboratory ecotoxicity tests on appropriate test organisms to explore relationships between exposure and effect under controlled conditions as well as studies of the effects of substances or effluents under a variety of ecological conditions in complex field ecosystems (Chapman, 1995). 

Ross, P. (1993) The use of bacterial luminescence systems in aquatic toxicity testing, in M. Richardson (ed.), Ecotoxicology Monitoring, VCH Publishers, Weinheim, Germany, pp. 185-195. 

Adams WJ, Rowland CD. 2003. Aquatic toxicology test methods. In Hoffman DJ, Rattner BA, Burton GA, Cairns J, Jr, editors. Handbook of ecotoxicology. Boca Raton (FL) Lewis Publishers, p 19-43. 

Testing in Aquatic Ecotoxicology What Are the Scientific Conditions for the 3R Concept ... 

Keywords 3R Aquatic Ecotoxicology Fish tests REACH... 

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