Water column distribution of phospholipid-derived fatty acids of marine microorganisms in the Humboldt Current system off northern Chile

Espinosa, LF; Pantoja S.; Pinto, LA; Rullkotter, J

Abstract

Suspended particulate matter samples from the oxygenated surface zone, the oxygen minimum zone, and the oxygenated deeper zone were collected from the upwelling area off Antofagasta in northern Chile during austral autumn (April 2001) to study the composition of microbial phospholipid-derived fatty acid methyl esters, using capillary gas chromatography-mass spectrometry. Whereas phytoplanktonic carbon dominated living organic matter near the coast, bacterial carbon was most abundant offshore. The biomarker distribution showed some differences between the depth levels sampled, such as the highest microbial abundance in the epipelagic zone represented by phytoplankton, especially diatoms, and a homogeneous distribution of bacterial biomarkers, with no indication of vertical segregation of functional groups as previously thought. © 2008 Elsevier Ltd. All rights reserved.

Más información

Título según WOS: Water column distribution of phospholipid-derived fatty acids of marine microorganisms in the Humboldt Current system off northern Chile
Título según SCOPUS: Water column distribution of phospholipid-derived fatty acids of marine microorganisms in the Humboldt Current system off northern Chile
Título de la Revista: DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
Volumen: 56
Número: 16
Editorial: PERGAMON-ELSEVIER SCIENCE LTD
Fecha de publicación: 2009
Página de inicio: 1039
Página final: 1048
Idioma: English
URL: http://linkinghub.elsevier.com/retrieve/pii/S0967064508003275
DOI:

10.1016/j.dsr2.2008.09.008

Notas: ISI, SCOPUS