Estimates of phytoplankton class-specific and total primary production in the Mediterranean Sea from satellite ocean color observations
| Type | : | ACL |
|---|---|---|
| Nature | : | Production scientifique |
| Au bénéfice du Laboratoire | : | Oui |
| Statut de publication | : | Publié |
| Année de publication | : | 2012 |
| Auteurs (5) | : | UITZ Julia STRAMSKI Dariusz GENTILI Bernard D'ORTENZIO Fabrizio CLAUSTRE Herve |
| Revue scientifique | : | Global Biogeochemical Cycles |
| Volume | : | 26 |
| Fascicule | : | |
| Pages | : | |
| DOI | : | 10.1029/2011gb004055 |
| URL | : | <go to isi>://wos:000304550800001 |
| Abstract | : | An approach that combines a recently developed procedure for improved estimation of surface chlorophyll a concentration (Chl(surf)) from ocean color and a phytoplankton class-specific bio-optical model was used to examine primary production in the Mediterranean Sea. Specifically, this approach was applied to the 10 year time series of satellite Chl(surf) data from the Sea-viewing Wide Field-of-view Sensor. We estimated the primary production associated with three major phytoplankton classes (micro, nano, and picophytoplankton), which also yielded new estimates of the total primary production (P-tot). These estimates of P-tot (e.g., 68 g C m(-2) yr(-1) for the entire Mediterranean basin) are lower by a factor of similar to 2 and show a different seasonal cycle when compared with results from conventional approaches based on standard ocean color chlorophyll algorithm and a non-class-specific primary production model. Nanophytoplankton are found to be dominant contributors to P-tot (43-50%) throughout the year and entire basin. Micro and picophytoplankton exhibit variable contributions to P-tot depending on the season and ecological regime. In the most oligotrophic regime, these contributions are relatively stable all year long with picophytoplankton (similar to 32%) playing a larger role than microphytoplankton (similar to 22%). In the blooming regime, picophytoplankton dominate over microphytoplankton most of the year, except during the spring bloom when microphytoplankton (27-38%) are considerably more important than picophytoplankton (20-27%). |
| Mots-clés | : | - |
| Commentaire | : | Times Cited: 3 3 |
| Tags | : | - |
| Fichier attaché | : | - |
| Citation | : |
Uitz J, Stramski D, Gentili B, D'Ortenzio F, Claustre H (2012) Estimates of phytoplankton class-specific and total primary production in the Mediterranean Sea from satellite ocean color observations. Global Biogeochem Cy 26 | doi: 10.1029/2011gb004055
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