Living Bulimina marginata in the SW Atlantic continental margin: Effect of the Subtropical Shelf Front and South Atlantic Central Water

Autor(es)

Eichler, Patricia P. B. ; Pimenta, Felipe M. ; Eichler, Beatriz B. ; Vital, Helenice

• Tipo de documento: Artigo Científico
• Fonte: CONTINENTAL SHELF RESEARCH; v. 89, p. 5-pg., 2014-10-15.

Resumo

The western South Atlantic continental margin, between 27 degrees and 37 degrees S, is dominated by three main water masses: cold-fresh Subantarctic Shelf Water (SASW), warm-salty Subtropical Shelf Water (STSW) and Plata Plume Water (PPW). Despite the large seasonal variability of PPW extension along the shelf, an intense and relatively stable temperature-salinity gradient separates the SASW and the STSW forming the Subtropical Shelf Front (STSF) around 32 degrees S. This article demonstrates that the distribution of Bulimina marginata, (shelf environment and deep-sea) a species of benthic foraminifera is influenced by the front location and it can be used as a proxy of the STSF in sediment core analysis. (C) 2013 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 04/01950-3 - Levantamento oceanográfico em larga escala na plataforma continental sudeste da América do Sul (Laplata)
• Beneficiário: Edmo José Dias Campos
• Modalidade de apoio: Auxílio à Pesquisa - Regular