Fishecological monitoring of the Alte Donau in 2018
Abstract
The production of macrophytes in the Alte Donau in 2018 raised massively due to the late ice-covering in the beginning of the year and high temperatures and insolation in early spring. A high abundance of submerged vegetation leads to higher photosynthesis activity and furthermore to increasing pH-values. The pH-values of Alte Donau reached 9 during a longer timeperiod, what can influence fish health. The monitoring in 2018 will review the condition factors of most common fish species in the Alte Donau - an important indicator for fish vitality. Fish for this investigation will be evaluated by netfishing and to cover the abundances specified spots will be sampled by electrofishing.
keywords Alte Donau fish ecology condition factor abundance fish health
Publikationen
Limnologische Untersuchung - Alte Donau, Zustandsanalyse 2018, Abschlussbericht - Fische
Autoren: Drexler, S.-S.; Meulenbroek, P.; Waidbacher, H. Jahr: 2019
Expertengutachten (extern. Auftraggeber)
Project staff
Herwig Waidbacher
Ao.Univ.Prof.i.R. Dr.phil. Herwig Waidbacher
herwig.waidbacher@boku.ac.at
Tel: +43 1 47654-81222
Project Leader
01.08.2018 - 31.07.2019
Silke-Silvia Drexler
Dipl.-Ing. Silke-Silvia Drexler MBA
silke.drexler@boku.ac.at
Tel: +43 1 47654-81226
Sub Projectleader
01.08.2018 - 31.07.2019
Paul Meulenbroek
Dr. Paul Meulenbroek MSc.
paul.meulenbroek@boku.ac.at
Tel: +43 1 47654-81228
Project Staff
01.08.2018 - 31.07.2019
BOKU partners
External partners
University of Veterinary Medicine, Vienna
none
partner