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Net ecosystem production and carbon dioxide fluxes in the Scheldt estuarine plume
BACKGROUND: A time series of 4 consecutive years of measurements of the partial pressure of CO(2 )(pCO(2)) in the Scheldt estuarine plume is used here to estimate net ecosystem production (NEP). RESULTS: NEP in the Scheldt estuarine plume is estimated from the temporal changes of dissolved inorganic...
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Formato: | Texto |
Lenguaje: | English |
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BioMed Central
2008
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2556646/ https://www.ncbi.nlm.nih.gov/pubmed/18778481 http://dx.doi.org/10.1186/1472-6785-8-15 |
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author | Borges, Alberto V Ruddick, Kevin Schiettecatte, Laure-Sophie Delille, Bruno |
author_facet | Borges, Alberto V Ruddick, Kevin Schiettecatte, Laure-Sophie Delille, Bruno |
author_sort | Borges, Alberto V |
collection | PubMed |
description | BACKGROUND: A time series of 4 consecutive years of measurements of the partial pressure of CO(2 )(pCO(2)) in the Scheldt estuarine plume is used here to estimate net ecosystem production (NEP). RESULTS: NEP in the Scheldt estuarine plume is estimated from the temporal changes of dissolved inorganic carbon (DIC). The strong seasonal variations of NEP are consistent with previous reports on organic carbon dynamics in the area. These variations are related to successive phytoplankton blooms that partly feed seasonally variable heterotrophy the rest of the year. On an annual time scale the Scheldt estuarine plume behaves as a net heterotrophic system sustained with organic carbon input from the Scheldt inner estuary and the Belgian coast. During one of the years of the time-series the estuarine plume behaved annually as a net autotrophic system. This anomalous ecosystem metabolic behaviour seemed to result from a combination of bottom-up factors affecting the spring phytoplankton bloom (increased nutrient delivery and more favourable incoming light conditions). This net autotrophy seemed to lead to a transient aa accumulation of organic carbon, most probably in the sediments, that fed a stronger heterotrophy the following year. CONCLUSION: The present work highlights the potential of using pCO(2 )data to derive detailed seasonal estimates of NEP in highly dynamic coastal environments. These can be used to determine potential inter-annual variability of NEP due to natural climatic oscillations or due to changes in anthropogenic impacts. |
format | Text |
id | pubmed-2556646 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2008 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-25566462008-10-01 Net ecosystem production and carbon dioxide fluxes in the Scheldt estuarine plume Borges, Alberto V Ruddick, Kevin Schiettecatte, Laure-Sophie Delille, Bruno BMC Ecol Research Article BACKGROUND: A time series of 4 consecutive years of measurements of the partial pressure of CO(2 )(pCO(2)) in the Scheldt estuarine plume is used here to estimate net ecosystem production (NEP). RESULTS: NEP in the Scheldt estuarine plume is estimated from the temporal changes of dissolved inorganic carbon (DIC). The strong seasonal variations of NEP are consistent with previous reports on organic carbon dynamics in the area. These variations are related to successive phytoplankton blooms that partly feed seasonally variable heterotrophy the rest of the year. On an annual time scale the Scheldt estuarine plume behaves as a net heterotrophic system sustained with organic carbon input from the Scheldt inner estuary and the Belgian coast. During one of the years of the time-series the estuarine plume behaved annually as a net autotrophic system. This anomalous ecosystem metabolic behaviour seemed to result from a combination of bottom-up factors affecting the spring phytoplankton bloom (increased nutrient delivery and more favourable incoming light conditions). This net autotrophy seemed to lead to a transient aa accumulation of organic carbon, most probably in the sediments, that fed a stronger heterotrophy the following year. CONCLUSION: The present work highlights the potential of using pCO(2 )data to derive detailed seasonal estimates of NEP in highly dynamic coastal environments. These can be used to determine potential inter-annual variability of NEP due to natural climatic oscillations or due to changes in anthropogenic impacts. BioMed Central 2008-09-08 /pmc/articles/PMC2556646/ /pubmed/18778481 http://dx.doi.org/10.1186/1472-6785-8-15 Text en Copyright © 2008 Borges et al; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( (http://creativecommons.org/licenses/by/2.0) ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Borges, Alberto V Ruddick, Kevin Schiettecatte, Laure-Sophie Delille, Bruno Net ecosystem production and carbon dioxide fluxes in the Scheldt estuarine plume |
title | Net ecosystem production and carbon dioxide fluxes in the Scheldt estuarine plume |
title_full | Net ecosystem production and carbon dioxide fluxes in the Scheldt estuarine plume |
title_fullStr | Net ecosystem production and carbon dioxide fluxes in the Scheldt estuarine plume |
title_full_unstemmed | Net ecosystem production and carbon dioxide fluxes in the Scheldt estuarine plume |
title_short | Net ecosystem production and carbon dioxide fluxes in the Scheldt estuarine plume |
title_sort | net ecosystem production and carbon dioxide fluxes in the scheldt estuarine plume |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2556646/ https://www.ncbi.nlm.nih.gov/pubmed/18778481 http://dx.doi.org/10.1186/1472-6785-8-15 |
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