http://www.cnr.it/ontology/cnr/individuo/prodotto/ID49652
First basin-wide experimental results on N2 fixation in the open Mediterranean Sea (Articolo in rivista)
- Type
- Label
- First basin-wide experimental results on N2 fixation in the open Mediterranean Sea (Articolo in rivista) (literal)
- Anno
- 2010-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1029/2009GL041635 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Ibello V. (1); Cantoni C. (2); Cozzi S. (2); Civitarese G. (1) (literal)
- Pagina inizio
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
- doi:10.1029/2009GL041635 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- http://www.agu.org/journals/gl/ (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
- Note
- Google Scholar (literal)
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- (1) Istituto Nazionale di Oceanografia e di Geofisica Sperimentale, Trieste, Italy
(2) Istituto di Scienze Marine, Consiglio Nazionale delle Ricerche, Trieste, Italy (literal)
- Titolo
- First basin-wide experimental results on N2 fixation in the open Mediterranean Sea (literal)
- Abstract
- The Mediterranean Sea presents several biogeochemical
anomalies compared to the global ocean. An unbalanced N
budget, high nitrate/phosphate ratios in subsurface waters
and low 15N/14N ratios in particulate and dissolved nitrogen
suggest a significant occurrence of N2 fixation. This study
presents, for the first time, a basin-wide overview of direct
measurements of N2 fixation, with values in the North
Atlantic for comparison, during late spring 2007. Very low
N2 fixation rates (0.052 ± 0.031 nmols N l-1d-1) were
observed in all sub-regions of the Mediterranean, in
contrast to the higher values measured in the North Atlantic
(0.300 ± 0.115 nmols N l-1d-1). Higher phosphorus
(inorganic or organic) concentrations were not associated
with higher N2 fixation rates. Low 15N/14N ratios in
particulate organic nitrogen (from -2.10 to +4.11?),
associated with low N2 fixation rates, suggest that other N
sources, such as atmospheric inputs, fuel the Mediterranean
ecosystem. Citation: Ibello, V., C. Cantoni, S. Cozzi, and
G. Civitarese (2010), First basin-wide experimental results on
N2 fixation in the open Mediterranean Sea, Geophys. Res. Lett.,
37, L03608, doi:10.1029/2009GL041635. (literal)
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