Biogeochemical interactions control a temporal succession in the elemental composition of marine communities

Handle URI:
http://hdl.handle.net/10754/602296
Title:
Biogeochemical interactions control a temporal succession in the elemental composition of marine communities
Authors:
Martiny, Adam C. ( 0000-0003-2829-4314 ) ; Talarmin, Agathe Anne Gaelle ( 0000-0002-9716-6394 ) ; Mouginot, Céline; Lee, Jeanette A.; Huang, Jeremy S.; Gellene, Alyssa G.; Caron, David A.
Abstract:
Recent studies have revealed clear regional differences in the particulate organic matter composition and stoichiometry of plankton communities. In contrast, less is known about potential mechanisms and patterns of temporal changes in the elemental composition of marine systems. Here, we monitored weekly changes in environmental conditions, phytoplankton abundances, and particulate organic carbon, nitrogen, and phosphorus concentrations over a 3-yr period. We found that variation in the particulate organic matter (POM) concentrations and ratios were related to seasonal oscillations of environmental conditions and phytoplankton abundances. Periods with low temperature, high nutrient concentrations and a dominance of large phytoplankton corresponded to low C : N : P and vice-versa for warmer periods during the summer and fall. In addition to seasonal changes, we observed a multiyear increase in POM C : P and N : P that might be associated with the Pacific Decadal Oscillation. Finally, there was substantial short-term variability in all factors but similar linkages between environmental variability and elemental composition as observed on seasonal and interannual time-scales. Using a feed-forward neural network, we could explain a large part of the variation in POM concentrations and ratios based on changes in environmental conditions and phytoplankton abundances. The apparent links across all time-scales between changes in physics, chemistry, phytoplankton, and POM concentrations and ratios suggest we have identified key controls of the elemental composition of marine communities in this region.
KAUST Department:
Red Sea Research Center (RSRC)
Citation:
Biogeochemical interactions control a temporal succession in the elemental composition of marine communities 2016, 61 (2):531 Limnology and Oceanography
Publisher:
Wiley-Blackwell
Journal:
Limnology and Oceanography
Issue Date:
23-Nov-2015
DOI:
10.1002/lno.10233
Type:
Article
ISSN:
00243590
Sponsors:
We thank Steven Allison, Stephen Hatosy, Michael Louie, Erik Lee, Matthew Hernandez III, and Michael Lomas for help with the sampling and analysis. Financial support for this work was provided by the National Science Foundation Dimensions of Biodiversity (OCE-1046297) and Major Research Instrumentation programs (OCE-1126749) (to ACM), NSF Dimensions of Biodiversity (OCE-1136818) and National Oceanic and Atmospheric Administration subaward NA08OAR4320894 (to DAC), and the Undergraduate Research Opportunities Program at UCI (to JL and JH).
Additional Links:
http://doi.wiley.com/10.1002/lno.10233
Appears in Collections:
Articles; Red Sea Research Center (RSRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorMartiny, Adam C.en
dc.contributor.authorTalarmin, Agathe Anne Gaelleen
dc.contributor.authorMouginot, Célineen
dc.contributor.authorLee, Jeanette A.en
dc.contributor.authorHuang, Jeremy S.en
dc.contributor.authorGellene, Alyssa G.en
dc.contributor.authorCaron, David A.en
dc.date.accessioned2016-03-20T14:00:15Zen
dc.date.available2016-03-20T14:00:15Zen
dc.date.issued2015-11-23en
dc.identifier.citationBiogeochemical interactions control a temporal succession in the elemental composition of marine communities 2016, 61 (2):531 Limnology and Oceanographyen
dc.identifier.issn00243590en
dc.identifier.doi10.1002/lno.10233en
dc.identifier.urihttp://hdl.handle.net/10754/602296en
dc.description.abstractRecent studies have revealed clear regional differences in the particulate organic matter composition and stoichiometry of plankton communities. In contrast, less is known about potential mechanisms and patterns of temporal changes in the elemental composition of marine systems. Here, we monitored weekly changes in environmental conditions, phytoplankton abundances, and particulate organic carbon, nitrogen, and phosphorus concentrations over a 3-yr period. We found that variation in the particulate organic matter (POM) concentrations and ratios were related to seasonal oscillations of environmental conditions and phytoplankton abundances. Periods with low temperature, high nutrient concentrations and a dominance of large phytoplankton corresponded to low C : N : P and vice-versa for warmer periods during the summer and fall. In addition to seasonal changes, we observed a multiyear increase in POM C : P and N : P that might be associated with the Pacific Decadal Oscillation. Finally, there was substantial short-term variability in all factors but similar linkages between environmental variability and elemental composition as observed on seasonal and interannual time-scales. Using a feed-forward neural network, we could explain a large part of the variation in POM concentrations and ratios based on changes in environmental conditions and phytoplankton abundances. The apparent links across all time-scales between changes in physics, chemistry, phytoplankton, and POM concentrations and ratios suggest we have identified key controls of the elemental composition of marine communities in this region.en
dc.description.sponsorshipWe thank Steven Allison, Stephen Hatosy, Michael Louie, Erik Lee, Matthew Hernandez III, and Michael Lomas for help with the sampling and analysis. Financial support for this work was provided by the National Science Foundation Dimensions of Biodiversity (OCE-1046297) and Major Research Instrumentation programs (OCE-1126749) (to ACM), NSF Dimensions of Biodiversity (OCE-1136818) and National Oceanic and Atmospheric Administration subaward NA08OAR4320894 (to DAC), and the Undergraduate Research Opportunities Program at UCI (to JL and JH).en
dc.language.isoenen
dc.publisherWiley-Blackwellen
dc.relation.urlhttp://doi.wiley.com/10.1002/lno.10233en
dc.rightsArchived with thanks to Limnology and Oceanographyen
dc.titleBiogeochemical interactions control a temporal succession in the elemental composition of marine communitiesen
dc.typeArticleen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.identifier.journalLimnology and Oceanographyen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionDepartment of Earth System Science; University of California; Irvine Californiaen
dc.contributor.institutionDepartment of Ecology and Evolutionary Biology; University of California; Irvine Californiaen
dc.contributor.institutionDepartment of Biological Sciences; University of Southern California; Los Angeles Californiaen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorTalarmin, Agathe Anne Gaelleen
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