Predicting daily net ecosystem production in shallow lakes from dissolved oxygen saturation levels: a pan-European mesocosm experiment and modelling approach

Cao, Yu; Scharfenberger, Ulrike; Shatwell, Tom; Adrian, Rita; Agasild, Helen; Angeler, David G.; Beklioglu, Meryem; Cakiroglu, Ayse ldil; Hejzlar, Josef; Papastergiadou, Eva; Sorf, Michal; Stefanidis, Kostas; Sondergaard, Martin; Zingel, Priit; Jeppesen, Erik

doi:10.1007/s10750-024-05714-z

Research article2025Peer reviewed

Predicting daily net ecosystem production in shallow lakes from dissolved oxygen saturation levels: a pan-European mesocosm experiment and modelling approach

Cao, Yu; Scharfenberger, Ulrike; Shatwell, Tom; Adrian, Rita; Agasild, Helen; Angeler, David G.; Beklioglu, Meryem; Cakiroglu, Ayse ldil; Hejzlar, Josef; Papastergiadou, Eva; Sorf, Michal; Stefanidis, Kostas; Sondergaard, Martin; Zingel, Priit; Jeppesen, Erik

Abstract

Net ecosystem production (NEP) is an important indicator of lake ecosystem function and integrity. An earlier study, restricted to one geographical region, indicated that oxygen saturation levels (DO%) might be used to predict daily NEP in shallow lakes. To test the generality of the method, we used DO% data collected in a standardised pan-European mesocosm experiment with contrasting trophic states and water levels covering a large climate gradient (from Sweden to Turkey). We corroborated these data with process-based DO simulations. The NEP similar to DO% relation depended on factors influencing gas transfer: water depth and wind. The NEP similar to DO% relation per volume became weaker with increasing depth (1-2 m) but was independent of depth when area based. Simulations indicated that the marginalisation of the depth was sensitive to wind conditions. Trophic status, temperature and light showed no or only marginal (climate zone) effects (experimental data), while the simulations indicated influence of those factors under particular wind-depth conditions. We confirmed that when considering also wind and depth effects, midday DO% potentially provides reliable estimates of daily NEP. Therefore, historical monitoring data of DO% might be used to estimate NEP, and process-based oxygen models may be valuable tool therein. We encourage further tests.

Keywords

Metabolism; Simple models; Process-based models; Cross-system analyses

Published in

Hydrobiologia
2025, volume: 852, number: 2, pages: 471-487
Publisher: SPRINGER

SLU Authors

Angeler, David
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences
- Deakin University
- University of Nebraska Lincoln

UKÄ Subject classification

Oceanography, Hydrology, Water Resources
Ecology

Publication identifier

DOI: https://doi.org/10.1007/s10750-024-05714-z

Permanent link to this page (URI)

https://res.slu.se/id/publ/139358