Abstract
Ponds, wetlands, and shallow lakes (collectively “shallow waterbodies”) are among the most biogeochemically active freshwater ecosystems. Measurements of gross primary production (GPP), respiration (R), and net ecosystem production (NEP) are rare in shallow waterbodies compared to larger and deeper lakes, which can bias our understanding of lentic ecosystem processes. In this study, we calculated GPP, R, and NEP in 26 small, shallow waterbodies across temperate North America and Europe. We observed high rates of GPP (mean 8.4 g O2 m−3 d−1) and R (mean −9.1 g O2 m−3 d−1), while NEP varied from net heterotrophic to autotrophic. Metabolism rates were affected by depth and aquatic vegetation cover, and the shallowest waterbodies had the highest GPP, R, and the most variable NEP. The shallow waterbodies from this study had considerably higher metabolism rates compared to deeper lakes, stressing the importance of these systems as highly productive biogeochemical hotspots.
| Originalsprog | Engelsk |
|---|---|
| Artikelnummer | e2023GL106689 |
| Tidsskrift | Geophysical Research Letters |
| Vol/bind | 51 |
| Udgave nummer | 15 |
| Antal sider | 11 |
| ISSN | 0094-8276 |
| DOI | |
| Status | Udgivet - 2024 |
Bibliografisk note
Funding Information:This work benefited from participation in or use of the Global Lake Ecological Observatory Network (GLEON). We thank all municipalities and landowners who granted us access to study sites, including the Ducks Unlimited Canada (DUC) Yorkton Office, Katharine Ordway Natural History Study Area, Warner Nature Center, and Mary Cullen. We are grateful to the following people for assistance during field work: I. Potts, Brian Herwig, Mark Hanson, Will Hobbs, Leah Domine, Kyle Zimmer, Kathryn Hoffman, Margot Groskreutz, Alonso Delgado, Keith Douville, Mark Hove, Mira Ensley\u2010Field, Matthew Glasenapp, Ian Goodbar, J. Douglas Harman, Benjamin Huber, Emily Kangas, Kira Liu, Molly Stark\u2010Ragsdale, Long Tran, Emily Schilling, Holly Kundel, the Washington Department of Fish and Wildlife field crews, and the 2021 Aquatic Ecology class at Middlebury College. JSR was supported by the University of Minnesota. MAH was supported by the St. Olaf College Collaborative Undergraduate Research and Inquiry program and the National Science Foundation (Grant 2143449). MRA fieldwork was supported as part of the BEYOND 2020 project (grant\u2010aid agreement no. PBA/FS/16/02) and by the Marine Institute, as well as funded under the Marine Research Programme by the Irish Government. SB was partially funded by the Genome Sciences Program of the United States Department of Energy, Office of Biological and Environmental Research (Grant DE\u2010SC0023084). DJH fieldwork was supported by Macalester College and Augsburg University. JBC fieldwork was supported by the National Science Foundation (Grant DEB\u20100919095). LEB fieldwork was supported by Ducks Unlimited Canada's Institute for Wetland and Waterfowl Research. EKM fieldwork was supported by Middlebury College. SB and OFS fieldwork was supported by the U.S. Geological Survey, Ecosystem Mission Area, Land Change Science Climate Research and Development Program. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Funding Information:
This work benefited from participation in or use of the Global Lake Ecological Observatory Network (GLEON). We thank all municipalities and landowners who granted us access to study sites, including the Ducks Unlimited Canada (DUC) Yorkton Office, Katharine Ordway Natural History Study Area, Warner Nature Center, and Mary Cullen. We are grateful to the following people for assistance during field work: I. Potts, Brian Herwig, Mark Hanson, Will Hobbs, Leah Domine, Kyle Zimmer, Kathryn Hoffman, Margot Groskreutz, Alonso Delgado, Keith Douville, Mark Hove, Mira Ensley-Field, Matthew Glasenapp, Ian Goodbar, J. Douglas Harman, Benjamin Huber, Emily Kangas, Kira Liu, Molly Stark-Ragsdale, Long Tran, Emily Schilling, Holly Kundel, the Washington Department of Fish and Wildlife field crews, and the 2021 Aquatic Ecology class at Middlebury College. JSR was supported by the University of Minnesota. MAH was supported by the St. Olaf College Collaborative Undergraduate Research and Inquiry program and the National Science Foundation (Grant 2143449). MRA fieldwork was supported as part of the BEYOND 2020 project (grant-aid agreement no. PBA/FS/16/02) and by the Marine Institute, as well as funded under the Marine Research Programme by the Irish Government. SB was partially funded by the Genome Sciences Program of the United States Department of Energy, Office of Biological and Environmental Research (Grant DE-SC0023084). DJH fieldwork was supported by Macalester College and Augsburg University. JBC fieldwork was supported by the National Science Foundation (Grant DEB-0919095). LEB fieldwork was supported by Ducks Unlimited Canada's Institute for Wetland and Waterfowl Research. EKM fieldwork was supported by Middlebury College. SB and OFS fieldwork was supported by the U.S. Geological Survey, Ecosystem Mission Area, Land Change Science Climate Research and Development Program. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Publisher Copyright:
© 2024. The Author(s).