Importance of carbon as limiting nutrient for bacterioplankton in a boreal sub-arctic coastal system.
Much debate has revolved around nutrient limitation in estuaries. A common view today is that nitrogen (N) and phosphorus (P) act as co-limiting nutrients, both for processes carried out by phytoplankton and by bacterioplankton, although recent studies show that also carbon (C) may control estuarine...
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ftulundlup:oai:lup.lub.lu.se:e8c9ac2d-32e8-4ba6-b204-cdbe6140701d 2023-05-15T15:05:42+02:00 Importance of carbon as limiting nutrient for bacterioplankton in a boreal sub-arctic coastal system. Soares, Ana Berggren, Martin 2015-02-24 application/pdf https://lup.lub.lu.se/record/e8c9ac2d-32e8-4ba6-b204-cdbe6140701d https://portal.research.lu.se/files/19477840/Soares_ASLO_2015.pdf eng eng https://lup.lub.lu.se/record/e8c9ac2d-32e8-4ba6-b204-cdbe6140701d https://portal.research.lu.se/files/19477840/Soares_ASLO_2015.pdf info:eu-repo/semantics/openAccess Physical Geography contributiontoconference/poster info:eu-repo/semantics/conferencePoster text 2015 ftulundlup 2023-02-01T23:34:27Z Much debate has revolved around nutrient limitation in estuaries. A common view today is that nitrogen (N) and phosphorus (P) act as co-limiting nutrients, both for processes carried out by phytoplankton and by bacterioplankton, although recent studies show that also carbon (C) may control estuarine bacterioplankton, even in systems with large inputs of terrestrial organic matter (tOM). We conducted full factorial experiments in which C, N, P and salt (S) were added and assessed as factors controlling bacterioplankton respiration in a tOM-rich estuary (Öre estuary, northern Sweden). No nutrient limitation was found at high flow episodes, but during base flow each of the elements C, N and P generally boosted the respiration individually and with synergetic interaction effects when added in combination. Interestingly, salt additions increased tOM respiration in the high-salinity part of the continuum, but decreased respiration in the freshwater end. Our findings highlight the combined importance of C, N and P for oxygen consumption rates in coastal systems, suggesting that also C may need to be considered in nutrient management plans for coastal marine areas. Conference Object Arctic Northern Sweden Phytoplankton Lund University Publications (LUP) Arctic |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Physical Geography |
spellingShingle |
Physical Geography Soares, Ana Berggren, Martin Importance of carbon as limiting nutrient for bacterioplankton in a boreal sub-arctic coastal system. |
topic_facet |
Physical Geography |
description |
Much debate has revolved around nutrient limitation in estuaries. A common view today is that nitrogen (N) and phosphorus (P) act as co-limiting nutrients, both for processes carried out by phytoplankton and by bacterioplankton, although recent studies show that also carbon (C) may control estuarine bacterioplankton, even in systems with large inputs of terrestrial organic matter (tOM). We conducted full factorial experiments in which C, N, P and salt (S) were added and assessed as factors controlling bacterioplankton respiration in a tOM-rich estuary (Öre estuary, northern Sweden). No nutrient limitation was found at high flow episodes, but during base flow each of the elements C, N and P generally boosted the respiration individually and with synergetic interaction effects when added in combination. Interestingly, salt additions increased tOM respiration in the high-salinity part of the continuum, but decreased respiration in the freshwater end. Our findings highlight the combined importance of C, N and P for oxygen consumption rates in coastal systems, suggesting that also C may need to be considered in nutrient management plans for coastal marine areas. |
format |
Conference Object |
author |
Soares, Ana Berggren, Martin |
author_facet |
Soares, Ana Berggren, Martin |
author_sort |
Soares, Ana |
title |
Importance of carbon as limiting nutrient for bacterioplankton in a boreal sub-arctic coastal system. |
title_short |
Importance of carbon as limiting nutrient for bacterioplankton in a boreal sub-arctic coastal system. |
title_full |
Importance of carbon as limiting nutrient for bacterioplankton in a boreal sub-arctic coastal system. |
title_fullStr |
Importance of carbon as limiting nutrient for bacterioplankton in a boreal sub-arctic coastal system. |
title_full_unstemmed |
Importance of carbon as limiting nutrient for bacterioplankton in a boreal sub-arctic coastal system. |
title_sort |
importance of carbon as limiting nutrient for bacterioplankton in a boreal sub-arctic coastal system. |
publishDate |
2015 |
url |
https://lup.lub.lu.se/record/e8c9ac2d-32e8-4ba6-b204-cdbe6140701d https://portal.research.lu.se/files/19477840/Soares_ASLO_2015.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Northern Sweden Phytoplankton |
genre_facet |
Arctic Northern Sweden Phytoplankton |
op_relation |
https://lup.lub.lu.se/record/e8c9ac2d-32e8-4ba6-b204-cdbe6140701d https://portal.research.lu.se/files/19477840/Soares_ASLO_2015.pdf |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766337349790203904 |