| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Dynamics of particulate organic matter composition in coastal systems: forcing of spatio-temporal variability at multi-systems scale
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| Autores: |
Lienart, Camilla
Savoye, Nicolas
David, Valerie
Ramond, Pierre
Tress, Paco Rodriguez
Hanquiez, Vincent
Marieu, Vincent
Aubert, Fabien
Aubin, Sebastien
Bichon, Sabrina
Boinet, Christophe
Bourasseau, Line
Bozec, Yann
Breret, Martine
Breton, Elsa
Caparros, Jocelyne
Cariou, Thierry
Claquin, Pascal
Conan, Pascal
Corre, Anne-marie
Costes, Laurence
Crouvoisier, Muriel
Del Amo, Yolanda
Derriennic, Herve
Dindinaud, Francois
Duran, Robert
Durozier, Maia
Devesa, Jeremy
Ferreira, Sophie
Feunteun, Eric
Garcia, Nicole
Geslin, Sandrine
Grossteffan, Emilie
Gueux, Aurore
Guillaudeau, Julien
Guillou, Gael
Jolly, Orianne
Lachaussee, Nicolas
Lafont, Michel
Lagadec, Veronique
Lamoureux, Jezabel
Lauga, Beatrice
Lebreton, Benoit
Lecuyer, Eric
Lehodey, Jean-paul
Leroux, Cedric
L'Helguen, Stephane
Mace, Eric
Maria, Eric
Mousseau, Laure
Nowaczyk, Antoine
Pineau, Philippe
Petit, Franck
Pujo-pay, Mireille
Raimbault, Patrick
Rimmelin-maury, Peggy
Rouaud, Vanessa
Sauriau, Pierre-guy
Sultan, Emmanuelle
Susperregui, Nicolas
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| Data: |
2018-03
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| Ano: |
2018
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| Palavras-chave: |
Particulate organic matter
Coastal systems
Environmental forcing
Meta-analysis
France
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| Resumo: |
In costal systems, particulate organic matter (POM) results from a multiplicity of sources having their respective dynamics in terms of production, decomposition, transport and burial. The POM pool experiences thus considerable spatial and temporal variability. In order to better understand this variability, the present study employs statistical multivariate analyses to investigate links between POM composition and environmental forcings for a panel of twelve coastal systems distributed along the three maritime regions of France and monitored weekly to monthly for 1 to 8 years. At multi-system scale, two main gradients of POC composition have been identified: a ‘Continent-Ocean’ gradient associated with hydrodynamics, sedimentary dynamics and depth of the water column, and a gradient of trophic status related to nutrient availability. At local scale, seasonality of POC composition appears to be station-specific but still related to part of the above-mentioned forcings. A typology of systems was established by coupling spatial and temporal variability of POC composition. Four groups were highlighted: 1) the estuarine stations where POC composition is dominated by terrestrial POM and driven by hydrodynamics and sedimentary processes, 2) the oligotrophic systems, characterized by the contribution of diazotrophs due to low nutrient availability, and the marine meso/eutroph systems whose POC composition is 3) either deeply dominated by phytoplankton or 4) dominated by phytoplankton but where the contribution of continental and benthic POC is not negligible and is driven by hydrodynamics, sedimentary processes and the height of the water column. Finally, the present study provides several insights into the different forcings to POM composition and dynamics in temperate coastal systems at local and multi-system scales. This work also presents a methodological approach that establishes statistical links between forcings and POM composition, helping to gain more objectively insight of forcings.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00433/54471/55848.pdf
DOI:10.1016/j.pocean.2018.02.026
https://archimer.ifremer.fr/doc/00433/54471/
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| Editor: |
Pergamon-elsevier Science Ltd
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| Formato: |
application/pdf
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| Fonte: |
Progress In Oceanography (0079-6611) (Pergamon-elsevier Science Ltd), 2018-03 , Vol. 162 , P. 271-289
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| Direitos: |
2018 Elsevier Ltd. All rights reserved.
info:eu-repo/semantics/openAccess
restricted use
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