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Título

Effects of green macroalgal blooms on the meiofauna community structure in the Bay of Cádiz

Autor Bohórquez, J.; Papaspyrou, Sokratis ; Yúfera, Manuel ; van Bergeijk, S.A.; García-Robledo, Emilio; Jiménez-Arias, Juan L.; Bright, M.; Corzo Rodríguez, Alfonso
Palabras clave Intertidal sediment
Meiofauna
Macroalgal bloom
Bay of Cádiz
Fecha de publicación 15-may-2013
EditorElsevier
Citación Marine Pollution Bulletin 70(1-2): 10-17 (2013)
ResumenThe effect of macroalgal blooms on the abundance and community structure of intertidal sediment meiofauna was studied using an in situ enclosure experiments (Bay of Cádiz, Spain). Meiofaunal abundance (3500-41,000ind 10cm-2) was three to sevenfold higher in the presence of macroalgae. Nematoda were the dominant taxon both in Control (52-82%) and Macroalgae plots (92-96%), followed by Harpacticoida Copepoda and Ostracoda. Non-metric Multi-Dimensional Scaling (MDS) analysis clearly separated the meiofaunal community from Control and Macroalgae plots. Organic matter, organic carbon, total nitrogen, chlorophyll a and freeze-lysable inorganic nutrients were higher in Macroalgae plots, and were highly correlated with the horizontal MDS axis separating Control and Macroalgae meiofaunal communities. Meiofaunal abundance and taxonomic composition in the Bay of Cádiz seem to be bottom-up controlled either through a grazer system based on microphytobenthos in bare sediments or through a decomposer system in macroalgae affected sediments. © 2013 Elsevier Ltd.
URI http://hdl.handle.net/10261/102349
DOI10.1016/j.marpolbul.2013.02.002
Identificadoresdoi: 10.1016/j.marpolbul.2013.02.002
issn: 0025-326X
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