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Distribution and ecology of living (Rose Bengal stained) Marsipella elongata Norman 1878 (Foraminifera) in the Campos Basin, southeastern Brazilian continental margin

  • Cintia Yamashita
  • , Maria Virgínia Alves Martins
  • , Silvia Helena De Mello E Sousa
  • , Thaisa Marques Vicente
  • , Michael A. Kaminski
  • , Fabrizio Frontalini
  • , Renato Carreira
  • , Sueli Susana Godoi
  • , Nancy Kazumi Taniguchi
  • , Rodolfo Paranhos
  • , Rubens Cesar Lopes Figueira
  • , Carlos Eduardo De Rezende

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

The distribution of the agglutinated benthic foraminifer Marsipella elongata is studied from 70 oceanographic stations, located between 400mand 3000mdepth in the Campos Basin (southeastern Brazilian continentalmargin). Samples of the upper 0-2 cm of surficial sediment were collected during two sampling campaigns in 2008 and 2009. Grain size, total organic carbon, total nitrogen, calcium carbonate, phytopigment, lipids biomarkers (sterols, fatty acids and n-alcohols), total lipids, and bacterial biomass are analyzed as environmental parameters. These data as well as the particulate organic matter flux to the sea floor are compared with the distribution of living (roseBengal stained) Marsipella elongata. Living specimens of M. elongata occur in the range of 400-3000mwater depth. The distribution of this species appears to be related to relatively high particulate organic matter vertical flux, phytopigment content, and bacterial biomass under the influence of Brazil Current, IntermediateWestern Boundary Current and DeepWestern Boundary Current conditions (0.3-0.8 m/s).

Original languageEnglish
Pages (from-to)321-334
Number of pages14
JournalMicropaleontology
Volume63
Issue number5
StatePublished - 2017

Bibliographical note

Publisher Copyright:
© 2017 Micropaleontology Press. All rights reserved.

Keywords

  • Agglutinated benthic foraminifera
  • Bacterial biomass
  • Lipids biomarkers
  • South Atlantic Ocean
  • Vertical organic flux
  • Western Boundary Current

ASJC Scopus subject areas

  • Paleontology

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