Paired O2–CO2 measurements provide emergent insights into aquatic ecosystem function

Scientific Significance Statement Metabolic stoichiometry predicts that dissolved oxygen (O2) and carbon dioxide (CO2) in aquatic ecosystems should covary inversely; however, field observations often diverge from theoretical expectations. Here, we propose a suite of metrics describing this O2 and CO...

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Bibliographic Details
Published in:Limnology and oceanography letters 2020-08, Vol.5 (4), p.287-294
Main Authors: Vachon, Dominic, Sadro, Steven, Bogard, Matthew J., Lapierre, Jean‐François, Baulch, Helen M., Rusak, James A., Denfeld, Blaize A., Laas, Alo, Klaus, Marcus, Karlsson, Jan, Weyhenmeyer, Gesa A., Giorgio, Paul A.
Format: Article
Language:English
Subjects:
Aquatic ecosystems
Aquatic environment
Carbon dioxide
Dissolved oxygen
Gases
Lakes
Marine systems
Metabolism
Photosynthesis
Respiration
Streams
Water temperature
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Summary:Scientific Significance Statement Metabolic stoichiometry predicts that dissolved oxygen (O2) and carbon dioxide (CO2) in aquatic ecosystems should covary inversely; however, field observations often diverge from theoretical expectations. Here, we propose a suite of metrics describing this O2 and CO2 decoupling and introduce a conceptual framework for interpreting these metrics within aquatic ecosystems. Within this framework, we interpret cross‐system patterns of high‐frequency O2 and CO2 measurements in 11 northern lakes and extract emergent insights into the metabolic behavior and the simultaneous roles of chemical and physical forcing in shaping ecosystem processes. This approach leverages the power of high‐frequency paired O2–CO2 measurements, and yields a novel, integrative aquatic system typology which can also be applicable more broadly to streams and rivers, wetlands and marine systems.
ISSN:2378-2242
2378-2242
DOI:10.1002/lol2.10135