Zoeken
Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.
Boekenmand
Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).
RSS
Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.
nieuwe zoekopdracht
Particle export during a bloom of Emiliania huxleyi in the North-West European continental margin
Schmidt, S.; Harlay, J.; Borges, A.V.; Groom, S.; Delille, B.; Roevros, N.; Christodoulou, S.; Chou, L. (2013). Particle export during a bloom of Emiliania huxleyi in the North-West European continental margin. J. Mar. Syst. 109-110: S182-S190. dx.doi.org/10.1016/j.jmarsys.2011.12.005
In: Journal of Marine Systems. Elsevier: Tokyo; Oxford; New York; Amsterdam. ISSN 0924-7963; e-ISSN 1879-1573, meer
|  |
| Trefwoorden |
Prymnesiophyceae [WoRMS]
Marien/Kust |
| Author keywords |
Coccolithophores; North-Western European continental margin; La ChapelleBank; Goban Spur; Thorium-234; POC flux; Particle; Residence time |
| Auteurs | | Top |
- Schmidt, S.
- Harlay, J.
- Borges, A.V.
- Groom, S.
|
- Delille, B.
- Roevros, N.
- Christodoulou, S.
- Chou, L.
|
|
| Abstract |
Coccolithophores, the dominant pelagic calcifiers in the oceans, play a key role in the marine carbon cycle through calcification, primary production and carbon export, the main drivers of the biological CO2 pump. In May 2002 a cruise was conducted on the outer shelf of the North-West European continental margin, from the north Bay of Biscay to the Celtic Sea (47.0°–50.5°N, 5.0°–11.0°W), an area where massive blooms of Emiliania huxleyi are observed annually. Biogeochemical variables including primary production, calcification, partial pressure of CO2 (pCO2), chlorophyll-a (Chl-a), particle load, particulate organic and inorganic carbon (POC, PIC) and 234Th, were measured in surface waters to assess particle dynamic and carbon export in relation to the development of a coccolithophore bloom. We observed a marked northward decrease in Chl-a concentration and calcification rates: the bloom exhibited lower values and may be less well developed in the Goban Spur area. The export fluxes of POC and PIC from the top 80 m, determined using the ratios of POC and PIC to 234Th of particles, ranged from 81 to 323 mg C m- 2 d- 1 and from 30 to 84 mg C m- 2 d- 1, respectively. The highest fluxes were observed in waters presenting a well-developed coccolithophore bloom, as shown by high reflectance of surface waters. This experiment confirms that the occurrence of coccolithophores promotes efficient export of organic and inorganic carbon on the North-West European margin. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
