Aquatic toxicology, genetic toxicology, ecotoxicology. Investigation of genotoxic and cytotoxic effects for various aquatic organisms (molluscs, fish, etc.) and their different developments stages (embryons, lervae and juvenile) using micronucleus and other nuclear abnormalities assays in different tissues (peripheral blood, liver, kidney, gills, heamolymph). Genotoxic and cytotoxic studies are carried out in various parts of the Baltic Sea, assessing the genotoxic risk to fish. Furthermore, studies are carried out in various Lithuanian freshwater ecosystems (in situ) and in laboratory conditions for acute and chronic toxicity studies/tests on aquatic organisms (in vivo).