Impacts of ocean acidification on the structure, production, and physiology of the Mediterranean seagrass Posidonia oceanica
| Type | : | COM |
|---|---|---|
| Nature | : | Production scientifique |
| Au bénéfice du Laboratoire | : | Oui |
| Statut de publication | : | Publié |
| Année de publication | : | 2015 |
| Lieu de publication | : | - |
| Titre de la conférence | : | - |
| Lieu de la conférence | : | Granada, Spain |
| Année de la conférence | : | 2015 |
| Date de début | : | 22/02/2015 |
| Date de fin | : | 27/02/2015 |
| Titre du proceeding | : | - |
| Editeur de presse | : | - |
| Volume | : | - |
| Fascicule | : | - |
| Pages | : | |
| Auteurs (4) | : | COX Tracy,erin GAZEAU Frederic HENDRIKS Iris,e GATTUSO Jean-pierre |
| Editeurs scientifiques (0) | : | |
| DOI | : | - |
| URL | : | - |
| Abstract | : | Seagrasses engineer habitats and play ecological and geochemical roles that are predicted to be affected by ocean acidification. In the Mediterranean, the endemic seagrass Posidonia oceanica forms extensive meadows (5 million ha) and provides human services valued at 172 € m-2. Laboratory and field studies conducted near CO2 vents suggest that P. oceanica productivity will benefit from elevated CO2. These projections are important, however, as they are not based on precise CO2 control within a natural community, their reliability is limited. The European Free Ocean CO2 Enrichment experiment (eFOCE) controlled pH in situ within a chamber (1.8 m3) at 11 m in a P. oceanica meadow. High pCO2 water was supplied to a chamber to mimic future conditions in 2100 (-0.3 pH units from ambient) for 6 months. A second chamber served as a control and a third open area was monitored to account for structural artifacts. Meadow structure (e.g., shoot density, percent cover, leaf length), seagrass production (leaf production, biomass, photosynthesis) and physiology (chlorophyll fluorescence, chemical constituents) were measured before and during pH manipulation. Preliminary results will be reported. |
| Mots-clés | : | - |
| Commentaire | : | - |
| Tags | : | - |
| Fichier attaché | : | - |
| Citation | : |
Cox TE, Gazeau F, Hendriks IE, Gattuso J-P (2015) Impacts of ocean acidification on the structure, production, and physiology of the Mediterranean seagrass Posidonia oceanica. . Granada, Spain 22-27 February 2015
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