(Dept. 4) Biology and Ecology of Fishes
In the Department of Biology and Ecology of Fishes, we seek to understand the ecological and evolutionary processes that structure populations and communities of freshwater fishes and affect their functions. We use this knowledge to improve the management and conservation of wild fish populations. Our work focuses on interactions between natural and anthropogenic ecological factors and their effects on the dynamics of fish populations. The methodological approaches include hypothesis-driven laboratory research, mesocosm experimentation, lake manipulation, comparative field studies and theoretical modelling.
The role of connectivity in the interplay between climate change and the spread of alien fish in a large Mediterranean river
Dams exacerbate the consequences of climate change on river fish: A potential response of river fish to environmental changes is to colonise new habitats. Dams restrict the habitats of fish, but do not necessarily prevent the spread of invasive species, as Johannes Radinger and his team found.
In this Letter to Science the researchers argue that effective application of animal welfare in conservation is also possible if it is based on objective and measurable parameters of animal welfare – without relying on concepts such as consciousness, sentience or pain.
A survey with fisheries experts to gather information on recreational fisheries in developing countries shows that recreational fishing is socially important and is expected to grow in most countries. Recreational fisheries were described as mainly consumption oriented. Most often, tourists use marine waters, whereas resident recreational fishers use fresh waters.