Listar por autor "Lorenzo, M. Rosario"
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Effect of increased CO2 and dissolved iron on primary productivity and inorganic carbon uptake during a bloom of the coccolithophore Emiliania huxleyi
Íñiguez Moreno, Concepción; Lorenzo, M. Rosario; Segovia-Azcorra, María
(2014-07-03)
Net primary production (NPP) and inorganic carbon uptake were analysed during a bloom of Emiliania huxleyi in mesocosms. The experiment lasted 25 days and was carried out in the Raunefjord off Bergen (Norway, June 2012) ... -
Effects of increased co2 in the carbon budget and the photosynthetic yield of the arctic seaweeds alaria esculenta and desmarestia aculeata
Íñiguez Moreno, Concepción; Lorenzo, M. Rosario; Niell-Castanera, Francisco Javier; Wiencke, Christian; López-Gordillo, Francisco Javier; Carmona-Fernández, Raquel[et al.] (2015-03-03)
The physiological acclimation to increased pCO2 (1300 ppm) of two common Arctic seaweeds from Kongsfjord (Svalbard) was analysed under laboratory conditions after 7 days of incubation. Growth rate changed in both species ... -
Elevated CO<sub>2</sub> alleviates high PAR and UV stress in the unicellular Chlorophyte Dunaliella tertiolecta
García-Gómez, Candela; López-Gordillo, Francisco Javier; Palma, A.; Lorenzo, M. Rosario; Segovia, MR (2015-04-14)
The effects of increased CO<sub>2</sub> and irradiance on the physiological performance of the chlorophyte <em>Dunaliella tertiolecta</em> were studied at different PAR and UVR (UVA+UVB) irradiances, simulating the solar ... -
Increased CO2 and iron availability effects on carbon assimilation and calcification on the formation of Emiliania huxleyi blooms in a coastal phytoplankton community
Lorenzo, M. Rosario; Íñiguez Moreno, Concepción; Egge, Jorun K.; Larsen, Aud; Berger, Stella A.; García-Gómez, Candela; Segovia-Azcorra, María[et al.] (Elsevier, 2018)
In the present work, we exposed a natural phytoplankton community to either present (390-μatm, LC) or future CO2 levels predicted for year-2100 (900-μatm, HC) combined with ambient (4.5 nmol L−1, −DFB) or high (12 nmol ... -
Increased CO2 modifies the carbon balance and the photosynthetic yield of two common Arctic brown seaweeds: Desmarestia aculeata and Alaria esculenta
Íñiguez Moreno, Concepción; Carmona-Fernández, Raquel; Lorenzo, M. Rosario; Niell-Castanera, Francisco Javier; Wiencke, Christian; López-Gordillo, Francisco Javier[et al.] (Springer, 2015-06-05)
Ocean acidification affects with special intensity Arctic ecosystems, being marine photosynthetic organisms a primary target, although the consequences of this process in the carbon fluxes of Arctic algae are still unknown. ... -
Physiological stress response associated with elevated CO2 and dissolved iron in a phytoplankton community dominated by the coccolithophore Emiliania huxleyi.
Segovia-Azcorra, María; Lorenzo, M. Rosario; Íñiguez Moreno, Concepción; García-Gómez, Candela (Inter-Research Science Publisher, 2018)
We exposed a natural phytoplankton community to combined present (390 µatm, low carbon [LC]) and future CO2 levels predicted for the year 2100 (900 µatm, high carbon [HC]), and ambient (4.5 nM, -DFB [desferoxamine B]) and ... -
Response of the coccolithophore Emiliania huxleyi to increased CO2 and Fe availability within the plankton food web
(UMA Editorial, 2016)Ocean acidification due to increased CO2 emissions derived from anthropogenic activities is affecting marine ecosystems at an unprecedented rate (IPCC 2013). Ocean acidification has the potential to affect the physiological ... -
The effects of ocean acidification and siderophore additions on trace-metal dynamics during an Emiliania Huxleyi- dominated bloom in a coastal mesocosm experiment
Lorenzo, M. Rosario; Maldonado, Maria T.; Lázaro, Francisco J.; Cullen, Jay T.; Segovia-Azcorra, María (2014-07-03)
The combined impacts of high CO2 and changes in trace metal availability on plankton remain largely unknown. A 22 days mesocosm experiment was carried out in the Raunefjord, off Bergen, Norway (June 2012) to investigate ... -
Trace-metaldynamics in response of increase CO<sub>2</sub> and iron availability in a coastal mesocosm experiment
Lorenzo, M. Rosario; Maldonado, Maria T.; Lázaro, Francisco J.; Cullen, Jay T.; Segovia-Azcorra, María (2015-04-14)
A mesocosm experiment was performed in the Raunefjord (Norway) to study changes in dissolved Cu (dCu) and Fe (dFe), and in the elemental composition of particles during an <em>Emiliania huxleyi</em> dominated bloom. The ...