Downward fluxes of particulate organic matter in coastal and oceanic areas off Chile: The role of the OMZ and functional groups of the plankton

Vertical fluxes of particles have been estimated during the last decade in coastal and oceanic systems off central-southern Chile. Free-drifting, cylindrical sediment traps have been deployed below the mixing layer from coastal areas, while automatic, cone-shaped sediment traps have been anchored in...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	González,H E, Daneri,G, Menschel,E, Marchant,M, Pantoja,S, Hebbeln,D, Barria,C, Vera,R, Iriarte,J
Lenguaje:	English
Publicado:	Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción 2006
Materias:	Particulate organic matter fluxes oxygen minimum zone zooplankton functional groups sediment traps central Chile
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382006000300007
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0717-65382006000300007
record_format	dspace
spelling	oai:scielo:S0717-653820060003000072007-10-30Downward fluxes of particulate organic matter in coastal and oceanic areas off Chile: The role of the OMZ and functional groups of the planktonGonzález,H EDaneri,GMenschel,EMarchant,MPantoja,SHebbeln,DBarria,CVera,RIriarte,J Particulate organic matter fluxes oxygen minimum zone zooplankton functional groups sediment traps central Chile Vertical fluxes of particles have been estimated during the last decade in coastal and oceanic systems off central-southern Chile. Free-drifting, cylindrical sediment traps have been deployed below the mixing layer from coastal areas, while automatic, cone-shaped sediment traps have been anchored in deep oceanic areas. Vertical fluxes toward 2300 m depth off Coquimbo were dominated by calcium carbonate (~70 mg m-2 d-1) instead of particulate organic carbon (POC ~7 mg m-2 d-1), where foraminifers (Neogloboquadrina pachyderma) and faecal pellets of Euphausia mucronata and Oikopleura spp, played important roles as vehicles for carbonate and carbon, respectively. In coastal upwelling systems, (i. e. Concepción), the dominant vertical flux was POC, mainly driven by euphausiids faecal strings and diatoms of the genera Thalassiosira, Chaetoceros and Skeletonema. Bacterial degradation of exported POC towards deeper layer of the ocean seems not to be significantly affected by the oxic versus hypoxic levels of dissolved oxygen characteristics of different water masses.info:eu-repo/semantics/openAccessFacultad de Ciencias Naturales y Oceanográficas, Universidad de ConcepciónGayana (Concepción) v.70 suppl.1 20062006-10-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382006000300007en10.4067/S0717-65382006000300007
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Particulate organic matter fluxes oxygen minimum zone zooplankton functional groups sediment traps central Chile
spellingShingle	Particulate organic matter fluxes oxygen minimum zone zooplankton functional groups sediment traps central Chile González,H E Daneri,G Menschel,E Marchant,M Pantoja,S Hebbeln,D Barria,C Vera,R Iriarte,J Downward fluxes of particulate organic matter in coastal and oceanic areas off Chile: The role of the OMZ and functional groups of the plankton
description	Vertical fluxes of particles have been estimated during the last decade in coastal and oceanic systems off central-southern Chile. Free-drifting, cylindrical sediment traps have been deployed below the mixing layer from coastal areas, while automatic, cone-shaped sediment traps have been anchored in deep oceanic areas. Vertical fluxes toward 2300 m depth off Coquimbo were dominated by calcium carbonate (~70 mg m-2 d-1) instead of particulate organic carbon (POC ~7 mg m-2 d-1), where foraminifers (Neogloboquadrina pachyderma) and faecal pellets of Euphausia mucronata and Oikopleura spp, played important roles as vehicles for carbonate and carbon, respectively. In coastal upwelling systems, (i. e. Concepción), the dominant vertical flux was POC, mainly driven by euphausiids faecal strings and diatoms of the genera Thalassiosira, Chaetoceros and Skeletonema. Bacterial degradation of exported POC towards deeper layer of the ocean seems not to be significantly affected by the oxic versus hypoxic levels of dissolved oxygen characteristics of different water masses.
author	González,H E Daneri,G Menschel,E Marchant,M Pantoja,S Hebbeln,D Barria,C Vera,R Iriarte,J
author_facet	González,H E Daneri,G Menschel,E Marchant,M Pantoja,S Hebbeln,D Barria,C Vera,R Iriarte,J
author_sort	González,H E
title	Downward fluxes of particulate organic matter in coastal and oceanic areas off Chile: The role of the OMZ and functional groups of the plankton
title_short	Downward fluxes of particulate organic matter in coastal and oceanic areas off Chile: The role of the OMZ and functional groups of the plankton
title_full	Downward fluxes of particulate organic matter in coastal and oceanic areas off Chile: The role of the OMZ and functional groups of the plankton
title_fullStr	Downward fluxes of particulate organic matter in coastal and oceanic areas off Chile: The role of the OMZ and functional groups of the plankton
title_full_unstemmed	Downward fluxes of particulate organic matter in coastal and oceanic areas off Chile: The role of the OMZ and functional groups of the plankton
title_sort	downward fluxes of particulate organic matter in coastal and oceanic areas off chile: the role of the omz and functional groups of the plankton
publisher	Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción
publishDate	2006
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382006000300007
work_keys_str_mv	AT gonzalezhe downwardfluxesofparticulateorganicmatterincoastalandoceanicareasoffchiletheroleoftheomzandfunctionalgroupsoftheplankton AT danerig downwardfluxesofparticulateorganicmatterincoastalandoceanicareasoffchiletheroleoftheomzandfunctionalgroupsoftheplankton AT menschele downwardfluxesofparticulateorganicmatterincoastalandoceanicareasoffchiletheroleoftheomzandfunctionalgroupsoftheplankton AT marchantm downwardfluxesofparticulateorganicmatterincoastalandoceanicareasoffchiletheroleoftheomzandfunctionalgroupsoftheplankton AT pantojas downwardfluxesofparticulateorganicmatterincoastalandoceanicareasoffchiletheroleoftheomzandfunctionalgroupsoftheplankton AT hebbelnd downwardfluxesofparticulateorganicmatterincoastalandoceanicareasoffchiletheroleoftheomzandfunctionalgroupsoftheplankton AT barriac downwardfluxesofparticulateorganicmatterincoastalandoceanicareasoffchiletheroleoftheomzandfunctionalgroupsoftheplankton AT verar downwardfluxesofparticulateorganicmatterincoastalandoceanicareasoffchiletheroleoftheomzandfunctionalgroupsoftheplankton AT iriartej downwardfluxesofparticulateorganicmatterincoastalandoceanicareasoffchiletheroleoftheomzandfunctionalgroupsoftheplankton
_version_	1718442109741039616

Downward fluxes of particulate organic matter in coastal and oceanic areas off Chile: The role of the OMZ and functional groups of the plankton

Ejemplares similares