Scientia Marina, Vol 68, No S1 (2004)

Metabolic CO2 production in the Mediterranean Sea: A case study for estimating carbon budget in the sea


https://doi.org/10.3989/scimar.2004.68s157

Rosabruna La Ferla
IAMC - Istituto Sperimentale Talassografico (CNR), Italy

Maurizio Azzaro
IAMC - Istituto Sperimentale Talassografico (CNR), Italy

Abstract


A synthesis of published metabolic CO2 production rates determined in the water column of the Eastern Mediterranean Sea from 1993 to 1999 is reported with the aim of furnishing an overall picture of the remineralization processes occurring in the basin. The trends of the remineralization are also interpreted with respect to the so-called Eastern Mediterranean Transient (EMT) event. This study augments the sparse data set of respiration measurements, from oceanographic surveys, and highlights the tight coupling between biological processes and circulation patterns. In the photic zone, the rates decreased from West to East as well as from North to South. In the aphotic zone, the C remineralization trend followed the traditional routes of intermediate and deep waters in the Eastern Mediterranean Basin, and underwent the important modifications into the depths as a consequence of the EMT impact.

Keywords


ETS; metabolic production; remineralization; Mediterranean Sea; EMT

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