Stoichiometry of the degradation of dissolved and particulate biogenic organic matter in the NW Iberian upwelling
View/ Open
Identifiers
URI: http://hdl.handle.net/10508/1676Visitar enlace: doi: 10.1029/2004JC002473
Share
Metadata
Show full item recordAuthors
Álvarez-Salgado, X.A. (Xosé Antón); Nieto-Cid, M. (Mar); Gago, J. (Jesús); Brea, S. (Samanta); González-Castro, C. (Carmen); Doval, M.D. (María Dolores); Fernández-Pérez, F. (Fiz)Editor's version
http://onlinelibrary.wiley.com/doi/10.1029/2004JC002473/abstractDate
2006-07-20Type
articleAbstract
The average composition of the dissolved and particulate products of early
degradation of marine phytoplankton has been established for the first time in a coastal
upwelling system using a mixing analysis along isopycnal surfaces combined with a
stoichiometric model. About 17–18% of the mineralized organic matter is derived
from the decomposition of organic particulates, and 16–35% is from the dissolved
organic matter. The remaining 50–70% is derived probably from large fast sinking
particles. On average, the mineralized material on large particles has the closest
composition to the Redfield formula. The ratio of dissolved saccharides to dissolved
organic matter respiration is >40% higher than expected from a material of Redfield
composition. Finally, the ratio of lipid to particulate organic matter respiration is >80%
larger than expected from a material of Redfield composition. Regarding the
decomposition of hard structures, biogenic silica dissolves predominantly in the ...
The following license files are associated with this item: