La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Interactions of Salinity, Marsh Fragmentation and Submerged Aquatic Vegetation on Resident Nekton Assemblages of Coastal Marsh Ponds
Auteurs :	Alan T. Hitch, Auteur ; Kevin M. Purcell, Auteur ; Shannon B. Martin, Auteur ; Paul L. Klerks, Auteur ; Paul L. Leberg, Auteur
Type de document :	Article
Dans :	Estuaries and Coasts (34(3) MAY 2011)
Article en page(s) :	653-662
Résumé :	Increases in relative sea level are fragmenting the emergent vegetation of Louisiana's coastal marshes. Nekton abundance is likely impacted by salinity and whether emergent vegetation is replaced by submerged aquatic vegetation (SAV) or open water. To assess these effects, we sampled nekton densities along a salinity gradient (categorized as freshwater, intermediate, and brackish marsh) in fragmented and non-fragmented areas. Total nekton density increased strongly with SAV in brackish marsh but only weakly in freshwater marsh (F (2,238) = 10.03, p

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