La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Contrasting Carbon Dioxide Inputs and Exchange in Three Adjacent New England Estuaries
Auteurs :	Christopher W. Hunt, Auteur ; Joseph E. Salisbury, Auteur ; Douglas Vandemark, Auteur ; Wade McGillis, Auteur
Type de document :	Article
Dans :	Estuaries and Coasts (34(1) JAN 2011)
Article en page(s) :	68-77
Résumé :	Four surveys of the adjacent Cocheco, Bellamy, and Oyster estuaries reveal spatial heterogeneity with respect both to river-born carbon dioxide (CO(2)) fluxes and CO(2) exchange with the atmosphere (-17 to 51 mmol m(-2)day(-1)), a finding partially explained by CO(2) inputs from contributing watersheds. Nonuniform nutrient and organic carbon loading from upstream rivers and within the estuaries is considered as a mechanism resulting in the variability between estuaries. Conditions during the surveys included spring river runoff and phytoplankton blooms, drought with baseline river flow, and a historic flood which led to a large CO(2) release to the atmosphere. This study highlights the variability of CO(2) transport and release found between proximate estuaries over a wide range of flow conditions.

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