Resultats globals: 7 registres trobats en 0.02 segons.
Articles, 5 registres trobats
Documents de recerca, 2 registres trobats
Articles 5 registres trobats  
1.
18 p, 2.2 MB Temperature effects on sinking velocity of different Emiliania huxleyi strains / Rosas Navarro, Anaid (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Langer, Gerald (The Marine Biological Association of the United Kingdom) ; Ziveri, Patrizia (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals)
The sinking properties of three strains of Emiliania huxleyi in response to temperature changes were examined. We used a recently proposed approach to calculate sinking velocities from coccosphere architecture, which has the advantage to be applicable not only to culture samples, but also to field samples including fossil material. [...]
2018 - 10.1371/journal.pone.0194386
PLOS ONE, Vol. 13, issue 3 (March 2018) , e0194386  
2.
14 p, 8.4 MB Temperature affects the morphology and calcification of Emiliania huxleyi strains / Rosas Navarro, Anaid (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Langer, Gerald (The Marine Biological Association of the United Kingdom) ; Ziveri, Patrizia (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
The global warming debate has sparked an unprecedented interest in temperature effects on coccolithophores. The calcification response to temperature changes reported in the literature, however, is ambiguous. [...]
2016 - 10.5194/bg-13-2913-2016
Biogeosciences, Vol. 13,issue 10 (May 2016) , p. 2913-2926  
3.
8 p, 574.1 KB A Universal carbonate ion effect on stable oxygen isotope ratios in unicellular planktonic calcifying organisms / Ziveri, Patrizia (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Thoms, S. (Alfred-Wegener-Institut für Polar- und Meeresforschung) ; Probert, I. (Station Biologique de Roscoff) ; Geisen, M. (Alfred-Wegener-Institut für Polar-und Meeresforschung) ; Langer, Gerald (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals)
The oxygen isotopic composition (δ18¦O) of calcium carbonate of planktonic calcifying organisms is a key tool for reconstructing both past seawater temperature and salinity. The calibration of paloeceanographic proxies relies in general on empirical relationships derived from field experiments on extant species. [...]
2012 - 10.5194/bg-9-1025-2012
Biogeosciences, Vol. 9 No. 3 (March 2012) , p. 1025-1032  
4.
7 p, 1.1 MB Physiological controls on seawater uptake and calcification in the benthic foraminifer Ammonia tepida / Nooijer, L. J. de (Alfred-Wegener-Institut für Polar- und Meeresforschung) ; Langer, Gerald (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Nehrke, G. (Alfred-Wegener-Institut für Polar- und Meeresforschung) ; Bijma, J. (Alfred-Wegener-Institut für Polar- und Meeresforschung)
To analyze the relation between seawater uptake and calcification, we incubated juveniles of the benthic foraminifer Ammonia tepida with various fluorescent probes and visualised them afterwards with confocal laser scanning microscopy. [...]
2009 - 10.5194/bg-6-2669-2009
Biogeosciences, Vol. 6 No. 11 (November 2009) , p. 2669-2675  
5.
10 p, 2.2 MB Strain-specific responses of Emiliania huxleyi to changing seawater carbonate chemistry / Langer, Gerald (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Nehrke, G. (Alfred-Wegener-Institut für Polar-und Meeresforschung) ; Probert, I. (Station Biologique de Roscoff) ; Ly, J. (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Ziveri, Patrizia (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Four strains of the coccolithophore E. huxleyi (RCC1212, RCC1216, RCC1238, RCC1256) were grown in dilute batch culture at four CO₂ levels ranging from ~200μatm to ~1200μatm. Growth rate, particulate organic carbon content, and particulate inorganic carbon content were measured, and organic and inorganic carbon production calculated. [...]
2009 - 10.5194/bg-6-2637-2009
Biogeosciences, Vol. 6 No. 11 (November 2009) , p. 2637-2646  

Documents de recerca 2 registres trobats  
1.
Impact of ocean warming and acidification on coccolithophore ecology and calcification in the North Pacific / Rosas Navarro, Anaid, autor. ; Ziveri, Patrizia, supervisor acadèmic. ; Langer, Gerald, supervisor acadèmic. ; Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals.
Los cocolitofóridos son fitoplancton calcificante unicelular cosmopolita involucrado en importantes ciclos biogeoquímicos globales. Esta tesis doctoral se centra en los impactos del calentamiento del océano y la acidificación sobre la morfología y la calcificación de los cocolitofóridos, con especial atención a la especie cosmopolita y dominante Emiliania huxleyi. [...]
Coccolithophores are cosmopolitan unicellular calcifying phytoplankton involved in important biogeochemical global cycles. This PhD thesis focuses on the impacts of ocean warming and acidification on the morphology and calcification of coccolithophores, with special attention to the cosmopolitan and dominant species Emiliania huxleyi. [...]

[Bellaterra] : Universitat Autònoma de Barcelona, 2018.  
2.
151 p, 4.1 MB Effects of phosphorus limitation and ocean acidification on coccolithophores in the Mediterranean Sea / Oviedo Sabogal, Angela María ; Ziveri, Patrizia, dir. (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Langer, Gerald, dir. (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Universitat Autònoma de Barcelona. Departament de Biologia Cel·lular, de Fisiologia i d'Immunologia ; Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals
Este trabajo se desarrolló en el marco del proyecto Europeo Mediterranean Sea Acidification in a changing climate (MedSeA) (http://medsea-project. eu) con el fin de estudiar los efectos de la limitación por fósforo (P) y el incremento en la presión parcial de dióxido de carbono (pCO2) sobre diferentes aspectos de la biología y ecología de los cocolitóforos. [...]
This thesis was conducted in the framework of the European Mediterranean Sea Acidification in a changing climate (MedSeA) project (http://medsea-project. eu). It studies the effects of phosphorus limitation and increased partial pressure of carbon dioxide (pCO2) on different aspects of the biology and ecology of coccolithophores. [...]

[Barcelona] : Universitat Autònoma de Barcelona, 2015  

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