dr. ir. Leo Nagelkerke

Area of interest
Leo’s main interest lies in understanding changes in natural fish communities caused by fisheries,
water quality changes and hydrological adaptations. He focuses on functional trophic and life-history
traits of individuals to explain the observed changes at the fish community level.

Relevant research
Leo Nagelkerke studies changing fish communities in freshwater lakes, rivers, and (to a lesser extent)
marine systems. His work includes an extensive study on the taxonomy and trophic ecology of the
endemic carps of Lake Tana (northern Ethiopia), which was the first non-cichlid species flock to be
discovered. He further investigated how to derive informative indicators of fish community structure
from species-rich, but data-poor systems such as in African lakes and the Eritrean Red Sea. In Russia
he studied how hydrological changes in the River Volga influenced recruitment of fishes and the longterm
effects on the fish community.
Presently he works on methods to derive the trophic role of fishes from their morphology, using
functional traits related to feeding. His aim is to develop this eco-morphological approach into an
explanatory model for food web changes in the fish community.

Contact info
Wageningen University, Aquaculture and Fisheries Group (AFI)
De Elst 1, 6708 WD Wageningen, The Netherlands