RT Conference Proceedings
T1 Interactive effects of increased CO2 levels and iron availability on the marine pelagic food web during a mesocosm experiment
A1 Segovia-Azcorra, María
K1 Ciclos biogeoquímicos
K1 Fitoplancton marino
AB A mesocosm experiment was carried out in the Raunefjord, off Bergen, Norway (June 2012) to investigate the interactive effects of increased CO2 and iron availability on the pelagic food web. Twelve mesocosms (11m3) covered by PAR and UVR transparent lids were used. The seawater carbonate system in the mesocosms was manipulated to achieve two different CO2 levels, corresponding to the present (390 ppmV, LC) and to levels predicted for year 2100 (900 ppmV, HC). Mesocosms were fertilised at the onset of the experiment, by addition of 10 μM nitrate and 0.3 μM phosphate to induce a bloom of the coccolithophore Emiliania huxleyi. On day 7 of the experiment, half of the mesocosms were amended with 70 nM (final concentration) of the siderophore desferoxamine B (DFB). The relevance of these results within a global biogeochemical perspective will be discussed.
YR 2014
FD 2014-07-03
LK http://hdl.handle.net/10630/7761
UL http://hdl.handle.net/10630/7761
LA eng
NO IMBER-Congreso sobre el futuro de los océanos en el contexto de los ciclos biogeoquímicos
NO Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026