DEVELOPMENT AND DIVERSITY OF MICROBIAL COMMUNITIES IN URBAN AQUATIC NATURE-BASED SOLUTIONS – POZNAN CASE STUDY

Aquatic Nature-Based Solutions (aquaNBS) are designed to address a range of environmental and social challenges cities face and aid in adapting to climate change while offering various ecosystem services, such as providing recreational spaces for residents, creating specific microclimate conditions, improving water retention and enhancing biodiversity. We studied the links between planktonic microbes, aquatic vegetation and environmental parameters in 12 aquaNBS (ponds and streams) in Poznan (Poland). Our study was conducted within the BiNatUr project, which aimed to take a comprehensive approach to examine the interactions among social, ecological, and technological factors related to aquaNBS. Land use structure, hydrological conditions, morphology, and physical-chemical parameters of water and sediments influenced the biological communities of the studied aquaNBS. Stable water isotopes, deuterium and oxygen-18, indicated the impact of hydroclimatic factors on ecosystem functioning and were among the most significant factors affecting aquatic biota in the surveyed sites. We conclude that microbial communities differ among aquaNBS types (ponds vs streams) and between sites, enhancing urban freshwater biodiversity. This research was conducted within the BiNatUr project, funded through the Biodiversa and Water JPI joint call under the BiodivRestore ERA-NET Cofund (GA N°101003777) and financed by the National Science Centre (Poland; UMO-2021/03/Y/NZ8/00100) and the Federal Ministry of Education and Research (Germany; BMBF No. 16WL015).

Presentation Preference: Oral

Primary Presenter: Daniel Gebler, Poznan University of Life Sciences (daniel.gebler@up.poznan.pl)

Authors:

Michael Monaghan, Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Berlin, Germany & Freie Universität Berlin, Berlin, Germany  (michael.monaghan@igb-berlin.de)

Maria Warter, Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Berlin, Germany  (maria.warter@igb-berlin.de)

Dörthe Tetzlaff, Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Berlin, Germany & Humboldt University of Berlin, Berlin, Germany  (doerthe.tetzlaff@igb-berlin.de)

Mariusz Sojka, Poznan University of Life Sciences, Poznan, Poland  (mariusz.sojka@up.poznan.pl)

Krzysztof Szoszkiewicz, Poznan University of Life Sciences, Poznan, Poland  (krzysztof.szoszkiewicz@up.poznan.pl)