A modelling approach to the Redfield ratio deviations in the ocean

A. F. Ríos; F. Fraga; F. G. Figueiras; F. F. Pérez

doi:10.3989/scimar.1998.62n1-2169

A modelling approach to the Redfield ratio deviations in the ocean

Authors

A. F. Ríos Instituto de Investigaciones Marinas. CSIC
F. Fraga Instituto de Investigaciones Marinas. CSIC
F. G. Figueiras Instituto de Investigaciones Marinas. CSIC
F. F. Pérez Instituto de Investigaciones Marinas. CSIC

DOI:

https://doi.org/10.3989/scimar.1998.62n1-2169

Abstract

A study of the relationship among -O₂, ΔN and ΔC was developed when the production or mineralisation of particulate organic matter do not follow the Redfield ratios. A dinoflagellate red tide and a diatom spring bloom are shown as two cases where these Redfield deviations can be found. We propose a new useful tool for modelling water mass mixing and net community production budgets, which includes a chemical parameter ("NCO" = O₂ + R_N⋅NO₃(1-R_CS/R_C) + R_CS⋅CO₂) of general application where "NCO" indicates the involved variables (Nitrate-CO₂-Oxygen). R_N and R_C are the fixed Redfield ratios and R_CS is the relationship between oxygen consumed and CO₂ assimilated corresponding to storage substances. The R_CS value depends on the nature of the storage substances. Generally these substances are carbohydrates and the value of R_CS=1.

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Published

1998-06-30

How to Cite

Ríos AF, Fraga F, Figueiras FG, Pérez FF. A modelling approach to the Redfield ratio deviations in the ocean. Sci. mar. [Internet]. 1998Jun.30 [cited 2025Jan.21];62(1-2):169-76. Available from: https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/958

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Issue

Vol. 62 No. 1-2 (1998)

Section

Articles

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