Methane paradox in two peri-Alpine lakes
Methane oversaturation in oxygenated surface waters is a commonly observed phenomenon in freshwater lakes (="methane paradox"). Yet, seasonal variations and the biological drivers involved in the formation of the methane paradox in freshwater lakes are poorly understood. In this study, we investigated seasonal methane dynamics in oxic surface waters of two Austrian peri-Alpine lakes which differ in their trophic state. We further explored the relationships between subsurface methane inventories and biological parameters during four different seasons. Sequencing was performed at the Joint Microbiome Facility of the Medical University of Vienna and the University of Vienna under the project IDs JMF-2408-03, JMF-2509-06, and JMF-2511-19.