PIKEPERCH investigates the impact of catch-and-release angling of nest-guarding pikeperch (Sander lucioperca) on their reproductive output, which has implications for closed angling seasons. We aim to examine 1) whether male pikeperch are able to find their way back to the nest after capture and release, 2) which role egg predation during male absence plays, and 3) how the physiological stress affects certain traits of the nest-guarding behavior. In addition, we will collect basic data on the spawning behavior of pikeperch and on their catchability during and after spawning season using an experimental pond setup. The project has been running since spring 2018 in cooperation with scientists from the University of Eastern Finland (UEF) and has been implemented as part of the master’s thesis of Leander Höhne who is based at the IGB in the IFishMan working group.
Finanzielle Förderung: EU-INTERACT – International Network for Terrestrial Research and Monitoring in the Arctic
B.Sc. Leander Höhne (Humboldt-University zu Berlin)
Prof. Dr. Anssi Vainikka (University of Eastern Finland)
Prof. Dr. Robert Arlinghaus (Humboldt-University zu Berlin & Leibniz-Institut of Freshwater Ecology and Inland Fisheries)
Dr. Chris Elvidge (University of Eastern Finland)
Dr. Pekka Hyvärinen (Natural Resources Institute Finland)
Dr. Joni Tiainen (University of Eastern Finland)