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Systematically variable planktonic carbon metabolism along a land-to-lake gradient in a Great Lakes coastal zone

During the summers of 2002–2013, we measured rates of carbon metabolism in surface waters of six sites across a land-to-lake gradient from the upstream end of drowned river-mouth Muskegon Lake (ML) (freshwater estuary) to 19 km offshore in Lake Michigan (LM) (a Great Lake). Despite considerable inte...

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Autores principales: Weinke, Anthony D., Kendall, Scott T., Kroll, Daniel J., Strickler, Eric A., Weinert, Maggie E., Holcomb, Thomas M., Defore, Angela A., Dila, Deborah K., Snider, Michael J., Gereaux, Leon C., Biddanda, Bopaiah A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4226232/
https://www.ncbi.nlm.nih.gov/pubmed/25954055
http://dx.doi.org/10.1093/plankt/fbu066
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author Weinke, Anthony D.
Kendall, Scott T.
Kroll, Daniel J.
Strickler, Eric A.
Weinert, Maggie E.
Holcomb, Thomas M.
Defore, Angela A.
Dila, Deborah K.
Snider, Michael J.
Gereaux, Leon C.
Biddanda, Bopaiah A.
author_facet Weinke, Anthony D.
Kendall, Scott T.
Kroll, Daniel J.
Strickler, Eric A.
Weinert, Maggie E.
Holcomb, Thomas M.
Defore, Angela A.
Dila, Deborah K.
Snider, Michael J.
Gereaux, Leon C.
Biddanda, Bopaiah A.
author_sort Weinke, Anthony D.
collection PubMed
description During the summers of 2002–2013, we measured rates of carbon metabolism in surface waters of six sites across a land-to-lake gradient from the upstream end of drowned river-mouth Muskegon Lake (ML) (freshwater estuary) to 19 km offshore in Lake Michigan (LM) (a Great Lake). Despite considerable inter-year variability, the average rates of gross production (GP), respiration (R) and net production (NP) across ML (604 ± 58, 222 ± 22 and 381 ± 52 µg C L(−1) day(−1), respectively) decreased steeply in the furthest offshore LM site (22 ± 3, 55 ± 17 and −33 ± 15 µg C L(−1)day(−1), respectively). Along this land-to-lake gradient, GP decreased by 96 ± 1%, whereas R only decreased by 75 ± 9%, variably influencing the carbon balance along this coastal zone. All ML sites were consistently net autotrophic (mean GP:R = 2.7), while the furthest offshore LM site was net heterotrophic (mean GP:R = 0.4). Our study suggests that pelagic waters of this Great Lakes coastal estuary are net carbon sinks that transition into net carbon sources offshore. Reactive and dynamic estuarine coastal zones everywhere may contribute similarly to regional and global carbon cycles.
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spelling pubmed-42262322015-05-07 Systematically variable planktonic carbon metabolism along a land-to-lake gradient in a Great Lakes coastal zone Weinke, Anthony D. Kendall, Scott T. Kroll, Daniel J. Strickler, Eric A. Weinert, Maggie E. Holcomb, Thomas M. Defore, Angela A. Dila, Deborah K. Snider, Michael J. Gereaux, Leon C. Biddanda, Bopaiah A. J Plankton Res Original Articles During the summers of 2002–2013, we measured rates of carbon metabolism in surface waters of six sites across a land-to-lake gradient from the upstream end of drowned river-mouth Muskegon Lake (ML) (freshwater estuary) to 19 km offshore in Lake Michigan (LM) (a Great Lake). Despite considerable inter-year variability, the average rates of gross production (GP), respiration (R) and net production (NP) across ML (604 ± 58, 222 ± 22 and 381 ± 52 µg C L(−1) day(−1), respectively) decreased steeply in the furthest offshore LM site (22 ± 3, 55 ± 17 and −33 ± 15 µg C L(−1)day(−1), respectively). Along this land-to-lake gradient, GP decreased by 96 ± 1%, whereas R only decreased by 75 ± 9%, variably influencing the carbon balance along this coastal zone. All ML sites were consistently net autotrophic (mean GP:R = 2.7), while the furthest offshore LM site was net heterotrophic (mean GP:R = 0.4). Our study suggests that pelagic waters of this Great Lakes coastal estuary are net carbon sinks that transition into net carbon sources offshore. Reactive and dynamic estuarine coastal zones everywhere may contribute similarly to regional and global carbon cycles. Oxford University Press 2014-11 2014-08-11 /pmc/articles/PMC4226232/ /pubmed/25954055 http://dx.doi.org/10.1093/plankt/fbu066 Text en © The Author 2014. Published by Oxford University Press http://creativecommons.org/licenses/by/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Articles
Weinke, Anthony D.
Kendall, Scott T.
Kroll, Daniel J.
Strickler, Eric A.
Weinert, Maggie E.
Holcomb, Thomas M.
Defore, Angela A.
Dila, Deborah K.
Snider, Michael J.
Gereaux, Leon C.
Biddanda, Bopaiah A.
Systematically variable planktonic carbon metabolism along a land-to-lake gradient in a Great Lakes coastal zone
title Systematically variable planktonic carbon metabolism along a land-to-lake gradient in a Great Lakes coastal zone
title_full Systematically variable planktonic carbon metabolism along a land-to-lake gradient in a Great Lakes coastal zone
title_fullStr Systematically variable planktonic carbon metabolism along a land-to-lake gradient in a Great Lakes coastal zone
title_full_unstemmed Systematically variable planktonic carbon metabolism along a land-to-lake gradient in a Great Lakes coastal zone
title_short Systematically variable planktonic carbon metabolism along a land-to-lake gradient in a Great Lakes coastal zone
title_sort systematically variable planktonic carbon metabolism along a land-to-lake gradient in a great lakes coastal zone
topic Original Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4226232/
https://www.ncbi.nlm.nih.gov/pubmed/25954055
http://dx.doi.org/10.1093/plankt/fbu066
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