There are four avenues of research in which I am mainly interested and which are partly interlinked: (1) Biodiversity, ecology, taxonomy and zoogeography of aquatic invertebrates, with special regard to water mites (Hydrachnidia) and freshwater gastropods; (2).Ecological research in springs ecosystem; (3) Ecology of Intermittent Rivers and Ephemeral Streams; (4) Environmental Monitoring.