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

González H.E.; Daneri G.; Menschel, E.; Marchant,M.; Pantoja S.; Hebbeln D.; Barria, C; Vera, R; Iriarte J

Abstract

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. Concepci

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Título según SCIELO: Downward fluxes of particulate organic matter in coastal and oceanic areas off Chile: The role of the OMZ and functional groups of the plankton
Título de la Revista: GAYANA
Volumen: 70
Editorial: EDICIONES UNIV, CONCEPCION
Fecha de publicación: 2006
Página de inicio: 26
Página final: 28
Idioma: en
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382006000300007&lng=en&nrm=iso&tlng=en
DOI:

10.4067/S0717-65382006000300007

Notas: SCIELO