http://www.cnr.it/ontology/cnr/individuo/prodotto/ID182038
Winter to spring variations of chromophoric dissolved organic matter in a temperate estuary (Po River, northern Adriatic Sea) (Articolo in rivista)
- Type
- Label
- Winter to spring variations of chromophoric dissolved organic matter in a temperate estuary (Po River, northern Adriatic Sea) (Articolo in rivista) (literal)
- Anno
- 2010-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.marenvres.2010.03.005 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- D. Berto; M. Giani; F. Savelli; E. Centanni; C.R. Ferrari; B. Pavoni (literal)
- Pagina inizio
- Pagina fine
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- Rivista
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- a Istituto Superiore per la Protezione e la Ricerca Ambientale, ISPRA, Chioggia, Italy
b Università di Venezia, Dipartimento Scienze Ambientali, Venezia, Italy
c Agenzia regionale Prevenzione Ambiente dell' Emilia Romagna, Cesenatico, Italy (literal)
- Titolo
- Winter to spring variations of chromophoric dissolved organic matter in a temperate estuary (Po River, northern Adriatic Sea) (literal)
- Abstract
- The light absorbing fraction of dissolved organic carbon (DOC), known as chromophoric dissolved
organic matter (CDOM) showed wide seasonal variations in the temperate estuarine zone in front of the
Po River mouth. DOC concentrations increased from winter through spring mainly as a seasonal response
to increasing phytoplankton production and thermohaline stratification. The monthly dependence of the
CDOM light absorption by salinity and chlorophyll a concentrations was explored. In 2003, neither DOC
nor CDOM were linearly correlated with salinity, due to an exceptionally low Po river inflow. Though the
CDOM absorbance coefficients showed a higher content of chromophoric dissolved organic matter in
2004 with respect to 2003, the spectroscopic features confirmed that the qualitative nature of CDOM was
quite similar in both years.
CDOM and DOC underwent a conservative mixing, only after relevant Po river freshets, and a change in
optical features with an increase of the specific absorption coefficient was observed, suggesting a prevailing
terrestrial origin of dissolved organic matter. (literal)
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