Regional scale estimation of carbon fluxes from long-term monitoring of intertidal exposed rocky shore communities
| Autor: | Laurent Chauvaud, Morgana Tagliarolo, Jacques Clavier, Jacques Grall |
|---|---|
| Přispěvatelé: | Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut Universitaire Européen de la Mer (IUEM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), ANR-09-BLAN-0335,CHIVAS,Chimie des valves de la coquille Saint-Jacques européenne, archives multiproxies de la dynamique phytoplanctonique(2009) |
| Rok vydání: | 2015 |
| Předmět: |
Long-term monitoring
Intertidal zone chemistry.chemical_element Aquatic Science Oceanography Rocky shore chemistry.chemical_compound Flux (metallurgy) Abundance (ecology) 14. Life underwater Ecology Evolution Behavior and Systematics Intertidal environment ACL Metabolism chemistry 13. Climate action Temperature variations Greenhouse gas Carbon dioxide Environmental science Spatial variability [SDE.BE]Environmental Sciences/Biodiversity and Ecology Carbon Carbon flux |
| Zdroj: | Journal of Marine Systems Journal of Marine Systems, Elsevier, 2015, 149, pp.25-35. ⟨10.1016/j.jmarsys.2015.04.004⟩ |
| ISSN: | 0924-7963 |
| DOI: | 10.1016/j.jmarsys.2015.04.004 |
| Popis: | The observed increase in the atmospheric concentration of carbon dioxide due to anthropogenic emissions is predicted to lead to significant changes in climate. Recent studies highlight the importance of identifying the role of marine coastal communities in carbon exchanges. Our objective was to couple macrozoobenthos abundance data from long-term monitoring with species metabolism rates to contribute to the estimation of CO 2 fluxes from an intertidal exposed rocky shore community at a regional scale. The carbon fluxes due to respiration and calcification were calculated both during emersion and immersion, and the effect of temperature variation on carbon emissions was then predicted. Spatial and temporal natural variations of carbon fluxes were investigated and the contribution of exposed intertidal rocky shore communities to regional carbon emissions was calculated. The method was used to calculate the carbon budget allowed to account for the natural spatial variability of the community composition and carbon emissions. Mean annual calculated CO 2 emission was 14.3 mol C m − 2 yr − 2 , and the annual regional CO 2 flux was estimated at 2978 t C yr − 1 . Simulations showed that the potential feedback of a rise in temperature of 1 °C would lead to an increase of 4–7% in carbon emissions for this type of community. The results give a first quantification of intertidal exposed rocky shore carbon emissions that could be considered in evaluating further the global CO 2 budget. |
| Databáze: | OpenAIRE |
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