Variable export fluxes and efficiencies for calcite, opal, and organic carbon in the Atlantic Ocean:A ballast effect in action?

Latitudinal variability in export fluxes and efficiencies (ThE) of calcite, opal, and particulate organic carbon (POC) were examined during a basin-scale Atlantic Ocean cruise. A clear relationship between integrated euphotic zone POC and calcite export combined with similarities in average ThE for...

Full description

Bibliographic Details
Published in:Global Biogeochemical Cycles
Main Authors: Thomalla, Sandy Jane, Poulton, Alex, Sanders, Richard, Turnewitsch, Robert, Holligan, Patrick M., Lucas, Mike
Format: Article in Journal/Newspaper
Language:English
Published: 2008
Subjects:
Geosciences
Multidisciplinary
Environmental Sciences
EMILIANIA-HUXLEYI
SEA
Meteorology & Atmospheric Sciences
DISSOLUTION
NORTH-ATLANTIC
TH-234
SOUTHERN-OCEAN
BIOGENIC SILICA
COPEPOD GUTS
IN-SITU
PHYTOPLANKTON
Southern Ocean
North Atlantic
Online Access:https://pure.uhi.ac.uk/en/publications/8cd0d518-13a4-4ec5-aa8d-2aee24f4c754
https://doi.org/10.1029/2007GB002982
Description
Summary:Latitudinal variability in export fluxes and efficiencies (ThE) of calcite, opal, and particulate organic carbon (POC) were examined during a basin-scale Atlantic Ocean cruise. A clear relationship between integrated euphotic zone POC and calcite export combined with similarities in average ThE for calcite (0.26), opal (0.31), and POC (0.29) implies a potential association between biomineral and POC export. However, such similarity conceals substantial uncorrelated variability when ThE values are compared on regional scales, with ThE of POC often being much higher than that of calcite or opal. High-euphotic zone ThE for POC (0.3-0.4) relative to that found in deep sea sediment traps (

Similar Items