My
major interests are the autecology and zoogeography, both in the broader sense,
of small freshwater fishes. My primary interest lays on fishes of Eurasia.
During last years I worked mainly on loaches of the genera Cobitis and Sabanejewia.
Regarding the autecology, I focuss on reproductive and larval biology. The best
ideas on which factor may be important for the fish I get from field data and
from observations of aquarium stocks. Afterwards, the potential mechanisms can
be tested in laboratory experiments. My interest in zoogeography includes the
distribution of fishes as well as the problems around their identification (by
analyses of morphology and karyotype) and their relationships and dispersal (by
comparing mtDNA sequences).