Why, where and when do fish migrate in our waters? In rivers, their migration routes are influenced by obstacles such as dams, as well as by climate change. At the same time, their habitats are changing: slow-flowing, fragmented rivers are becoming warmer and increasingly resemble lakes, displacing species that require cold, fast-flowing water. Genetic diversity also suffers as a result of such changes and restocking measures. Understanding all these interrelationships is important for both research and practice in order to protect fish and their habitats in the long term.

In this talk from the ‘Research by the Lake’ series, you will be introduced to the various migrations and movement patterns of fish. You will learn which human influences disrupt their behaviour, what consequences this has, and which conservation measures can help. It will also demonstrate how it is even possible to track fish on their migrations. The lecture will show why fish migration is a fascinating topic that is also highly relevant to both research and society.