Hydro-Saline Dynamics of a Shallow Mediterranean Coastal Lagoon: Complementary Information from Short and Long Term Monitoring

The Vaccarès Lagoon System, located in the central part of the Rhône Delta (France), is a complex shallow coastal lagoon, exposed to a typical Mediterranean climate and a specific hydrological regime affected by man-controlled exchanges with the sea and agricultural drainage channels. In this articl...

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Main Authors: Olivier Boutron, Caroline Paugam, Emilie Luna-Laurent, Philippe Chauvelon, Damien Sous, Vincent Rey, Samuel Meulé, Yves Chérain, Anais Cheiron, Emmanuelle Migne
Format: Article
Language:English
Published: MDPI AG 2021-06-01
Series:Journal of Marine Science and Engineering
Subjects:
Online Access:https://www.mdpi.com/2077-1312/9/7/701
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author Olivier Boutron
Caroline Paugam
Emilie Luna-Laurent
Philippe Chauvelon
Damien Sous
Vincent Rey
Samuel Meulé
Yves Chérain
Anais Cheiron
Emmanuelle Migne
author_facet Olivier Boutron
Caroline Paugam
Emilie Luna-Laurent
Philippe Chauvelon
Damien Sous
Vincent Rey
Samuel Meulé
Yves Chérain
Anais Cheiron
Emmanuelle Migne
author_sort Olivier Boutron
collection DOAJ
description The Vaccarès Lagoon System, located in the central part of the Rhône Delta (France), is a complex shallow coastal lagoon, exposed to a typical Mediterranean climate and a specific hydrological regime affected by man-controlled exchanges with the sea and agricultural drainage channels. In this article, we report the results obtained by a series of monitoring programs, with different spatial and temporal resolutions. Long-term datasets from 1999 to 2019 with data collected on a monthly basis and a high spatial resolution highlighted the significant spatial heterogeneity in salinity regimes, and helped to determine the long-term evolution of the total mass of dissolved salt. High-frequency surveys allowed to characterize the water levels and salinity dynamics seasonal response to (i) the exchanges with the Mediterranean Sea, (ii) the exchanges with agricultural drainage channels, and (iii) the rain and evaporation. In addition, wind effects on salinity variations are also explored. This work shows how different spatial and temporal monitoring strategies provide complementary information on the dynamic of such a complex system. Results will be useful and provide insight for the management of similar lagoon systems, accommodating for both human activities and ecological stakes in the context of global change.
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spelling doaj.art-b9f72ba4db264287adf10fc396fb18352023-11-22T01:46:52ZengMDPI AGJournal of Marine Science and Engineering2077-13122021-06-019770110.3390/jmse9070701Hydro-Saline Dynamics of a Shallow Mediterranean Coastal Lagoon: Complementary Information from Short and Long Term MonitoringOlivier Boutron0Caroline Paugam1Emilie Luna-Laurent2Philippe Chauvelon3Damien Sous4Vincent Rey5Samuel Meulé6Yves Chérain7Anais Cheiron8Emmanuelle Migne9Tour du Valat Research Institute, Le Sambuc, 13200 Arles, FranceMediterranean Institute of Oceanography (MIO), Université de Toulon AMU, CNRS/INSU, IRD, UM 110 Toulon, FranceTour du Valat Research Institute, Le Sambuc, 13200 Arles, FranceTour du Valat Research Institute, Le Sambuc, 13200 Arles, FranceUniversité de Pau, Pays Adour-E2S UPPA, SIAME, Anglet, FranceMediterranean Institute of Oceanography (MIO), Université de Toulon AMU, CNRS/INSU, IRD, UM 110 Toulon, FranceUniversité Aix Marseille, CNRS, IRD, INRA, Coll France, CEREGE, Aix-en-Provence, FranceNational Nature Reserve of Camargue, National Society for Nature Protection (SNPN), La Capeliere, 13200 Arles, FranceNational Nature Reserve of Camargue, National Society for Nature Protection (SNPN), La Capeliere, 13200 Arles, FranceNational Nature Reserve of Camargue, National Society for Nature Protection (SNPN), La Capeliere, 13200 Arles, FranceThe Vaccarès Lagoon System, located in the central part of the Rhône Delta (France), is a complex shallow coastal lagoon, exposed to a typical Mediterranean climate and a specific hydrological regime affected by man-controlled exchanges with the sea and agricultural drainage channels. In this article, we report the results obtained by a series of monitoring programs, with different spatial and temporal resolutions. Long-term datasets from 1999 to 2019 with data collected on a monthly basis and a high spatial resolution highlighted the significant spatial heterogeneity in salinity regimes, and helped to determine the long-term evolution of the total mass of dissolved salt. High-frequency surveys allowed to characterize the water levels and salinity dynamics seasonal response to (i) the exchanges with the Mediterranean Sea, (ii) the exchanges with agricultural drainage channels, and (iii) the rain and evaporation. In addition, wind effects on salinity variations are also explored. This work shows how different spatial and temporal monitoring strategies provide complementary information on the dynamic of such a complex system. Results will be useful and provide insight for the management of similar lagoon systems, accommodating for both human activities and ecological stakes in the context of global change.https://www.mdpi.com/2077-1312/9/7/701shallow coastal lagoonchoked lagoonMediterranean climatesalinity
spellingShingle Olivier Boutron
Caroline Paugam
Emilie Luna-Laurent
Philippe Chauvelon
Damien Sous
Vincent Rey
Samuel Meulé
Yves Chérain
Anais Cheiron
Emmanuelle Migne
Hydro-Saline Dynamics of a Shallow Mediterranean Coastal Lagoon: Complementary Information from Short and Long Term Monitoring
Journal of Marine Science and Engineering
shallow coastal lagoon
choked lagoon
Mediterranean climate
salinity
title Hydro-Saline Dynamics of a Shallow Mediterranean Coastal Lagoon: Complementary Information from Short and Long Term Monitoring
title_full Hydro-Saline Dynamics of a Shallow Mediterranean Coastal Lagoon: Complementary Information from Short and Long Term Monitoring
title_fullStr Hydro-Saline Dynamics of a Shallow Mediterranean Coastal Lagoon: Complementary Information from Short and Long Term Monitoring
title_full_unstemmed Hydro-Saline Dynamics of a Shallow Mediterranean Coastal Lagoon: Complementary Information from Short and Long Term Monitoring
title_short Hydro-Saline Dynamics of a Shallow Mediterranean Coastal Lagoon: Complementary Information from Short and Long Term Monitoring
title_sort hydro saline dynamics of a shallow mediterranean coastal lagoon complementary information from short and long term monitoring
topic shallow coastal lagoon
choked lagoon
Mediterranean climate
salinity
url https://www.mdpi.com/2077-1312/9/7/701
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