Alexander Cerwenka

Dr. Alexander Cerwenka is a researcher at the Zoological State Collection Munich (ZSM) within the Bavarian State Natural Science Collections (SNSB). He specializes in ichthyology, invasive species ecology, and evolutionary genetics, with a focus on gobiid fishes and their ecological impacts.

His research involves collaborations with Johannes Geist, Ulrich Schliewen, and others, examining population dynamics of invasive species like the round goby (Neogobius melanostomus) in the Danube River. He has contributed to studies on hybridization, dispersal patterns, and trait-environment associations.

Cerwenka employs methodologies such as isotope analysis, genetic species identification, and eDNA monitoring in aquatic ecosystems. His work has been published in journals like PLoS ONE, Aquatic Invasions, and Hydrobiologia, often addressing conservation implications of invasive species.