Items where Author is "Langer, Gerald"

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Number of items: 93.

Article

Klintzsch, T. , Langer, G. , Nehrke, G.

, Wieland, A. , Lenhart, K. and Keppler, F. (2019)
Methane production by three widespread marine phytoplankton species: release rates, precursor compounds, and potential relevance for the environment ,

Biogeosciences, 16 (20), pp. 4129-4144 .

doi:https://doi.org/10.5194/bg-16-4129-2019 , hdl:10013/epic.beaac233-d707-4d9f-b699-2afdd9949ff4

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Article

Langer, G. , Sadekov, A. , Nehrke, G.

, Baggini, C. , Rodolfo-Metalpa, R. , Hall-Spencer, J. M. , Cuoco, E. , Bijma, J.

and Elderfield, H. (2018)
Relationship between mineralogy and minor element partitioning in limpets from an Ischia CO 2 vent site provides new insights into their biomineralization pathway ,

Geochimica et Cosmochimica Acta, 236 , pp. 218-229 .

doi:https://doi.org/10.1016/j.gca.2018.02.044 , hdl:10013/epic.4ee83a1c-2235-40fa-b999-af0685bb4696

Article

de Nooijer, L. J. , Brombacher, A. , Mewes, A. , Langer, G. , Nehrke, G.

, Bijma, J.

and Reichart, G. J. (2017)
Ba incorporation in benthic foraminifera ,

Biogeosciences, 14 (14), pp. 3387-3400 .

doi:https://doi.org/10.5194/bg-14-3387-2017 , hdl:10013/epic.51408

Article

de Nooijer, L. J. , Brombacher, A. , Mewes, A. , Langer, G. , Nehrke, G.

, Bijma, J.

and Reichart, G. J. (2017)
Ba incorporation in benthic foraminifera ,

Biogeosciences Discuss., pp. 1-35 .

doi:https://doi.org/10.5194/bg-2017-45 , hdl:10013/epic.50612

Article

Langer, G. , Sadekov, A. , Thoms, S. , Keul, N. , Nehrke, G.

, Mewes, A. , Greaves, M. , Misra, S. , Reichart, G. J. , de Nooijer, L. J. , Bijma, J.

and Elderfield, H. (2016)
Sr partitioning in the benthic foraminifera Ammonia aomoriensis and Amphistegina lessonii ,

Chemical Geology, 440 , pp. 306-312 .

doi:https://doi.org/10.1016/j.chemgeo.2016.07.018 , hdl:10013/epic.48604

Article

Keul, N. , Langer, G. , Thoms, S. , de Nooijer, L. , Reichart, G. J. and Bijma, J.

(2016)
Exploring foraminiferal Sr/Ca as a new carbonate system proxy ,

Geochimica et Cosmochimica Acta .

doi:https://doi.org/10.1016/j.gca.2016.11.022 , hdl:10013/epic.49181

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Article

Lenhart, K. , Klintzsch, T. , Langer, G. , Nehrke, G.

, Bunge, M. , Schnell, S. and Keppler, F. (2016)
Evidence for methane production by the marine algae Emiliania huxleyi ,

Biogeosciences, 13 (10), pp. 3163-3174 .

doi:https://doi.org/10.5194/bg-13-3163-2016 , hdl:10013/epic.47958

Article

Langer, G. , Sadekov, A. , Thoms, S. , Mewes, A. , Nehrke, G.

, Greaves, M. , Misra, S. , Bijma, J.

and Elderfield, H. (2015)
Li partitioning in the benthic foraminiferaAmphistegina lessonii ,

Geochemistry, Geophysics, Geosystems, n/a-n/a .

doi:https://doi.org/10.1002/2015GC006134 , hdl:10013/epic.46525

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Article

Mewes, A. , Langer, G. , Reichart, G. J. , de Nooijer, L. J. , Nehrke, G.

and Bijma, J.

(2015)
The impact of Mg contents on Sr partitioning in benthic foraminifers ,

Chemical Geology, 412 , pp. 92-98 .

doi:https://doi.org/10.1016/j.chemgeo.2015.06.026 , hdl:10013/epic.45880

Article

Branson, O. , Kaczmarek, K. , Redfern, S. A. , Misra, S. , Langer, G. , Tyliszczak, T. , Bijma, J.

and Elderfield, H. (2015)
The coordination and distribution of B in foraminiferal calcite ,

Earth and Planetary Science Letters, 416 , pp. 67-72 .

doi:https://doi.org/10.1016/j.epsl.2015.02.006 , hdl:10013/epic.45082

Article

Keul, N. , Langer, G. , de Nooijer, L. J. , Nehrke, G.

, Reichart, G. J. , Bijma, J.

and Schneider, R. (2015)
New Carbonate System Proxies: Foram Culturing and Pteropod Potentials ,

Nova Acta Leopoldina NF, 121 (408), pp. 305-309 .

hdl:10013/epic.45664

Article

Mewes, A. , Langer, G. , De Noojer, L. J. , Bijma, J.

and Reichart, G. J. (2014)
Effect of different seawater Mg2 + concentrations on calcification in two benthic foraminifers ,

Marine Micropaleontology, 113 , pp. 56-64 .

doi:https://doi.org/10.1016/j.marmicro.2014.09.003 , hdl:10013/epic.44652

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Article

de Nooijer, L. J. , Hathorne, E. C. , Reichart, G. J. , Langer, G. and Bijma, J.

(2014)
Variability in calcitic Mg/Ca and Sr/Ca ratios in clones of the benthic foraminifer Ammonia tepida ,

Marine Micropaleontology, 107 , pp. 32-43 .

doi:https://doi.org/10.1016/j.marmicro.2014.02.002 , hdl:10013/epic.43442

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Article

Oviedo, A. , Langer, G. and Ziveri, P. (2014)
Effect of phosphorus limitation on coccolith morphology and element ratios in Mediterranean strains of the coccolithorphore Emiliania huxleyi ,

Journal of Experimental Marine Biology and Ecology, 459 , pp. 105-113 .

hdl:10013/epic.51116

Article

Nehrke, G.

, Keul, N. , Langer, G. , de Nooijer, L. , Bijma, J.

and Meibom, A. (2013)
A new model for biomineralization and trace-element signatures of Foraminifera tests ,

Biogeosciences, 10 , pp. 6759-6767 .

doi:https://doi.org/10.5194/bg-10-6759-2013 , hdl:10013/epic.42554

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Article

Langer, G. , Oetjen, K. and Brenneis, T. (2013)
On culture artefacts in coccolith morphology ,

Helgoland Marine Research, 67 (2), pp. 359-369 .

doi:https://doi.org/10.1007/s10152-012-0328-x , hdl:10013/epic.50582

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Article

Holtz, L. M. , Thoms, S. , Langer, G. and Wolf-Gladrow, D.

(2013)
SUBSTRATE SUPPLY FOR CALCITE PRECIPITATION IN EMILIANIA HUXLEYI: ASSESSMENT OF DIFFERENT MODEL APPROACHES ,

Journal of Phycology, 49 , pp. 417-426 .

doi:https://doi.org/10.1111/jpy.12052 , hdl:10013/epic.41715

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Article

Keul, N. , Langer, G. , de Nooijer, L. J. , Nehrke, G.

, Reichart, G. J. and Bijma, J.

(2013)
Incorporation of uranium in benthic foraminiferal calcite reflects seawater carbonate ion concentration ,

Geochemistry, Geophysics, Geosystems, 14 (1), pp. 102-111 .

doi:https://doi.org/10.1029/2012GC004330 , hdl:10013/epic.41341

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Article

Langer, G. , Oetjen, K. and Brenneis, T. (2013)
Coccolithophores do not increase particulate carbon production under nutrient limitation: A case study using Emiliania huxleyi (PML B92/11) ,

Journal of Experimental Marine Biology and Ecology, 443 , pp. 155-161 .

doi:https://doi.org/10.1016/j.jembe.2013.02.040 , hdl:10013/epic.41465

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Article

Keul, N. , Langer, G. , de Nooijer, L. and Bijma, J.

(2013)
Effect of ocean acidification on the benthic foraminifera Ammonia sp. is caused by a decrease in carbonate ion concentration ,

Biogeosciences, 10 , pp. 6185-6198 .

doi:https://doi.org/10.5194/bg-10-6185-2013 , hdl:10013/epic.42461

Article

Langer, G. (2013)
Palaeontology: Plankton in a greenhouse world ,

Nature Geoscience, 6 (3), pp. 164-165 .

doi:https://doi.org/10.1038/ngeo1750 , hdl:10013/epic.41138

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Article

Hoppe, C. J. M.

, Langer, G. , Rokitta, S. D.

, Wolf-Gladrow, D. A.

and Rost, B.

(2012)
Implications of observed inconsistencies in carbonate chemistry measurements for ocean acidification studies ,

Biogeosciences, 9 , pp. 2401-2405 .

doi:https://doi.org/10.5194/bg-9-2401-2012 , hdl:10013/epic.39720

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Article

Stoll, H. , Langer, G. , Shimizu, N. and Kanamaru, K. (2012)
B/Ca in coccoliths and relationship to calcification vesicle pH and dissolved inorganic carbon concentrations ,

Geochimica et Cosmochimica Acta, 80 , pp. 143-157 .

doi:https://doi.org/10.1016/j.gca.2011.12.003 , hdl:10013/epic.39053

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Article

Glas, M. , Langer, G. and Keul, N. (2012)
Calcification acidifies the microenvironment of a benthic foraminifer (Ammonia sp.) ,

Journal of Experimental Marine Biology and Ecology, 424-42 , pp. 53-58 .

doi:https://doi.org/10.1016/j.jembe.2012.05.006 , hdl:10013/epic.39925

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Article

Langer, G. , Oetjen, K. and Brenneis, T. (2012)
Calcification of Calcidiscus leptoporus under nitrogen and phosphorus limitation ,

Journal of Experimental Marine Biology and Ecology, 413 , pp. 131-137 .

doi:https://doi.org/10.1016/j.jembe.2011.11.028 , hdl:10013/epic.38832

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Article

Langer, G. and Bode, M. (2011)
CO2 mediation of adverse effects of seawater acidification in Calcidiscus leptoporus ,

Geochem. Geophys. Geosyst., 12, Q05001, doi:10.1029/2010GC003393. .

doi:https://doi.org/10.1029/2010GC003393 , hdl:10013/epic.37472

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Article

Nehrke, G.

and Langer, G. (2011)
Comment on "In situ multielemental monitoring in coral skeleton by CF-LIBS" by S. Pandhija and A.K. Rai (DOI:10.1007/s00340-008-3343-5) ,

Applied Physics B: Lasers and Optics. .

doi:https://doi.org/10.1007/s00340-011-4650-9 , hdl:10013/epic.37847

Article

Hoppe, C.

, Langer, G. and Rost, B.

(2011)
Emiliania huxleyi shows identical responses to elevated pCO2 in TA and DIC manipulations ,

Journal of Experimental Marine Biology and Ecology, 406 (1), pp. 54-62 .

doi:https://doi.org/10.1016/j.jembe.2011.06.008 , hdl:10013/epic.37725

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Article

Langer, G. , Probert, I. , Nehrke, G.

and Ziveri, P. (2011)
The morphological response of Emiliania huxleyi to seawater carbonate chemistry changes: an inter-strain comparison ,

Journal of Nannoplankton Research 32 (1), pp. 29-34 .

hdl:10013/epic.37875

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Article

Ziveri, P. , Thoms, S. , Probert, I. , Geisen, M. and Langer, G. (2011)
A universal carbonate ion effect on stable oxygen isotope ratios in unicellular planktonic calcifying organisms ,

Biogeosciences Discussions., 8 , pp. 7575-7591 .

doi:https://doi.org/10.5194/bgd-8-7575-2011 , hdl:10013/epic.37851

Article

Kranz, S. , Wolf-Gladrow, D.

, Nehrke, G.

, Langer, G. and Rost, B.

(2010)
Calcium carbonate precipitation induced by the growth of the marine cyanobacteria Trichodesmium ,

Limnology and Oceanography, 55 (6), pp. 2563-2569 .

doi:https://doi.org/10.4319/lo.2010.55.6.2563 , hdl:10013/epic.36190

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Article

Kaffes, A. , Thoms, S. , Trimborn, S.

, Rost, B.

, Langer, G. , Richter, K. U. , Köhler, A. , Norici, A. and Giordano, M. (2010)
Carbon and nitrogen fluxes in the marine coccolithophore Emiliania huxleyi grown under different nitrate concentrations ,

Journal of Experimental Marine Biology and Ecology, 393 (1), pp. 1-8 .

doi:https://doi.org/10.1016/j.jembe.2010.06.004 , hdl:10013/epic.35794

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Article

Langer, G. , de Nooijer, L. J. and Oetjen, K. (2010)
ON THE ROLE OF THE CYTOSKELETON IN COCCOLITH MORPHOGENESIS: THE EFFECT OF CYTOSKELETON INHIBITORS ,

Journal of Phycology 461256, 1252 .

doi:https://doi.org/10.1111/j.1529-8817.2010.00916.x , hdl:10013/epic.36335

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Article

Hoppe, C.

, Langer, G. , Rokitta, S.

, Wolf-Gladrow, D.

and Rost, B.

(2010)
On CO2 pertubation experiments: over-determination of carbonate chemistry reveals inconsistencies ,

Biogeosciences Discussion, 7 , pp. 1707-1726 .

hdl:10013/epic.35638

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Article

Langer, G. , Nehrke, G.

, Thoms, S. and Stoll, H. (2009)
Barium partitioning in coccoliths of Emiliania huxleyi. ,

Geochimica et Cocmochimica Acta, 73 (10), 2899 - 2906 .

doi:https://doi.org/10.1016/j.gca.2009.02.025 , hdl:10013/epic.32112

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Article

Langer, G. and Benner, I. (2009)
Effect of elevated nitrate concentration on calcification in Emiliania huxleyi ,

Journal of Nannoplankton Research:, 30 , pp. 77-80 .

hdl:10013/epic.36085

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Article

Piontek, J. , Händel, N. , Langer, G. , Wohlers, J. , Riebesell, U. and Engel, A. (2009)
Effects of rising temperature on the formation and microbial degradation of marine diatom aggregates ,

Aquatic Microbial Ecology:, 54 , pp. 305-318 .

doi:https://doi.org/10.3354/ame01273 , hdl:10013/epic.32447

Article

de Nooijer, L. J. , Langer, G. , Nehrke, G.

and Bijma, J.

(2009)
Physiological controls on seawater uptake and calcification in the benthic foraminifer Ammonia tepida ,

Biogeosciences Discussions, 67102., 7083 .

hdl:10013/epic.33738

Article

de Nooijer, L. J. , Langer, G. , Nehrke, G.

and Bijma, J.

(2009)
Physiological controls on seawater uptake and calcification in the benthic foraminifer Ammonia tepida ,

Biogeosciences, 6 , pp. 2669-675 .

hdl:10013/epic.33747

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Article

Langer, G. , Nehrke, G.

, Probert, I. , Ly, J. and Ziveri, P. (2009)
Strain-specific responses of Emiliania huxleyi to changing seawater carbonate chemistry ,

Biogeosciences, 6 , pp. 2637-2646 .

hdl:10013/epic.33900

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Article

Langer, G. , Gussone, N. , Nehrke, G.

, Riebesell, U. , Eisenhauer, A. and Thoms, S. (2007)
Calcium isotope fractionation during coccolith formation in Emiliania huxleyi: Independence of growth and calcification rate ,

Geochemistry, Geophysics, Geosystems, 8, Q05007 .

doi:https://doi.org/10.1029/2006GC001422 , hdl:10013/epic.26756

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Article

Gussone, N. , Langer, G. , Geisen, M. , Steel, B. A. and Riebesell, U. (2007)
Calcium isotope fractionation in coccoliths of cultured Calcidiscus leptoporus, Helicosphaera carteri, Syracosphaera pulchra and Umbilicosphaera foliosa ,

Earth and Planetary Science Letters, 260 (3), pp. 505-515 .

doi:https://doi.org/10.1016/j.epsl.2007.06.001 , hdl:10013/epic.27012

Article

Langer, G. , Nehrke, G.

and Jansen, S. (2007)
Dissolution of Calcidiscus leptoporus coccoliths in copepod guts?- A morphological study ,

Marine Ecology Progress Series, 331 , pp. 139-146 .

hdl:10013/epic.25068

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Article

Trimborn, S.

, Langer, G. and Rost, B.

(2007)
Effect of varying calcium concentrations and light intensities on calcification and photosynthesis in Emiliania huxleyi ,

Limnology and Oceanography:, 52 (5), pp. 2285-2293 .

hdl:10013/epic.27443

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Article

Gussone, N. , Langer, G. , Thoms, S. , Nehrke, G.

, Eisenhauer, A. , Riebesell, U. and Wefer, G. (2006)
Cellular calcium pathways and isotope fractionation in Emiliania huxleyi ,

Geology 34, pp. 625-628 .

doi:https://doi.org/10.1130/G22733.1 , hdl:10013/epic.24966

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Article

Langer, G. , Gussone, N. , Nehrke, G.

, Riebesell, U. , Eisenhauer, A. , Kuhnert, H. , Rost, B.

, Trimborn, S.

and Thoms, S. (2006)
Coccolith strontium to calcium ratios in Emiliania huxleyi: The dependence on seawater strontium and calcium concentrations ,

Limnology and oceanography, 51 (1), pp. 310-320 .

hdl:10013/epic.24312

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Article

Langer, G. , Geisen, M. , Baumann, K. H. , Kläs, J. , Riebesell, U. , Thoms, S. and Young, J. R. (2006)
Species-specific responses of calcifying algae to changing seawater carbonate chemistry ,

Geochemistry Geophysics Geosystems, 7, Q09006 .

doi:https://doi.org/10.1029/2005gc001227 , hdl:10013/epic.24967

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Article

Schouten, S. , Ossebaar, J. , Schreiber, K. , Kienhuis, M. V. M. , Langer, G. , Benthien, A.

and Bijma, J.

(2006)
The effect of temperature, salinity and growth rate on the stable hydrogen isotopic composition of long chain alkenones produced by Emiliania huxleyi and Gephyrocapsa oceanica ,

Biogeosciences, 3 , pp. 113-119 .

doi:https://doi.org/10.5194/bg-3-113-2006 , hdl:10013/epic.25007

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Article

Schouten, S. , Ossebaar, J. , Schreiber, K. , Kienhuis, M. V. M. , Langer, G. and Bijma, J.

(2005)
The effect of temperature and salinity on the stable hydrogen isotopic composition of long chain alkenones produced by Emiliania huxleyi and Gephyrocapsa oceanica ,

Biogeosciences Discussions, 2 , pp. 1681-1695 .

hdl:10013/epic.24275

Inbook

Holtz, L. M. , Langer, G. , Rokitta, S.

and Thoms, S. (2013)
Synthesis of nanostructured calcite particles in coccolithophores, unicellular algae / Rai, M. and Posten, C. (editors) ,

Green biosynthesis of nanoparticles: mechanisms and applications, Wallingford, UK, CABI, ISBN: 978-1-78064-223-9 .

doi:https://doi.org/10.1079/9781780642239.0132 , hdl:10013/epic.42928

Thesis

Thesis -PhD

Langer, G. (2005)
Calcification of selected coccolithophore species: strontium partitioning, calcium isotope fractionation, and dependence on seawater carbonate chemistry ,

PhD thesis, Bremen, Univ., Diss., 2005.

hdl:10013/epic.35294

Conference

Conference -Poster

Keul, N. , Langer, G. , Thoms, S. , de Nooijer, L. J. , Reichart, G. J. and Bijma, J.

(2017)
Exploring foraminiferal Sr/Ca as a new carbonate system proxy ,

European Geosciences Union General Assembly, Vienna, Austria, 23 April 2017 - 28 April 2017 .

hdl:10013/epic.4ad2d51b-074b-41fd-8c30-df4eafe9770d

Conference -Talk

Keul, N. , Langer, G. , de Nooijer, L. J. , Thoms, S. , Nehrke, G.

, Reichart, G. J. and Bijma, J.

(2017)
NEW CARBONATE SYSTEM PROXIES: Sr/Ca and U/Ca in Foraminifera ,

Goldschmidt, Paris, France, 13 August 2017 - 18 August 2017 .

hdl:10013/epic.1541bef7-3b2e-4a0a-b9ea-e0ce38a145c3

Conference -Poster

Funcke, A. , Langer, G. , de Nooijer, L. , Bijma, J.

and Reichart, G. J. (2012)
A culture study with benthic foraminifers at different [Mg2+]: Implications for biomineralization and proxies ,

AGU Fall Meeting, San Francisco, 3 September 2012 - 7 September 2012 .

hdl:10013/epic.40718

Conference -Poster

Holtz, L. M. , Thoms, S. , Langer, G. and Wolf-Gladrow, D.

(2012)
Substrate supply for calcite precipitation in Emiliania huxleyi: Assessment of different model approaches ,

EPOCA Final Meeting, Saint Jean Cap Ferrat, France, 2 April 2012 - 5 April 2012 .

hdl:10013/epic.39219

Conference -Talk

Funcke, A. , de Nooijer, L. , Keul, N. , Langer, G. , Bijma, J.

and Reichart, G. J. (2011)
Impact of Mg2+ and Ca2+ concentrations on calcification in the benthic foraminifer Ammonia tepida ,

Darwin Days, De Werelt, Lunteren, The Netherlands, 7 February 2011 - 8 February 2011 .

hdl:10013/epic.40706

Conference -Talk

Kranz, S. , Wolf-Gladrow, D.

, Nehrke, G.

, Langer, G. and Rost, B.

(2011)
Calcium Carbonate Precipitation by the Marine Cyanobacterium Trichodesmium ,

Goldschmidt 2011, August 14-19, 2011, Prague, Czech Republic. .

hdl:10013/epic.37944

Conference -Invited talk

Kranz, S. , Wolf-Gladrow, D.

, Nehrke, G.

, Langer, G. and Rost, B.

(2011)
Calcium carbonate precipitation by the marine cyanobacterium Trichodesmium ,

Max Planck Institute for Marine Microbiology Bremen, Seminar. .

hdl:10013/epic.37112

Conference -Poster

Hoppe, C.

, Langer, G. and Rost, B.

(2010)
Emiliania huxleyi cant tell TA from DIC manipulation ,

BIOACID / EPOCA / UKOARP Joint Meeting Bremerhaven.-30.09.2010. .

hdl:10013/epic.37170

Preview

Conference -Poster

Langer, G. , Nehrke, G.

, Thoms, S. and Stoll, H. (2009)
Barium partitioning in coccoliths of Emiliania huxleyi ,

European Geosciences Union General Assembly, Vienna, Austria24 April 2009. .

hdl:10013/epic.32038

Conference -Poster

Stoll, H. , Shimizu, N. and Langer, G. (2009)
Coccolith B/Ca ratios using SIMS ion probe analysis ,

European Geosciences Union General Assembly, Vienna, Austria24 April 2009. .

hdl:10013/epic.36338

Conference -Poster

Kaffes, N. , Trimborn, S.

, Rost, B.

, Langer, G. , Richter, K. U. , Norici, A. , Giordano, M. and Thoms, S. (2009)
EFFECTS OF NO3 - AVAILABILITY ON CARBON AND NITROGEN ASSIMILATION IN THE MARINE COCCOLITHOPHORE EMILIANIA HUXLEYI ,

9th INTERNATIONAL PHYCOLOGICAL CONGRESS. .

hdl:10013/epic.33198

Conference -Poster

Ziveri, P. , Langer, G. , Nehrke, G.

, Probert, I. and Ly, J. (2009)
Effect of changing carbonate chemistry on calcification of Emiliania huxleyi ,

European Geosciences Union General Assembly, Vienna, Austria24 April 2009. .

hdl:10013/epic.32039

Conference -Poster

Benner, I. and Langer, G. (2009)
Effect of elevated nitrate concentration on calcification of Emiliania huxleyi ,

European Geosciences Union General Assembly, Vienna, Austria24 April 2009. .

hdl:10013/epic.32880

Conference -Poster

de Nooijer, L. J. , Toyofuku, T. , Langer, G. , Nehrke, G.

, Kitazato, H. and Bijma, J.

(2009)
Intracellular control on calcification in benthic foraminifera ,

European Geosciences Union General Assembly, Vienna, Austria24 April 2009. .

hdl:10013/epic.33859

Conference -Poster

Ziveri, P. , Langer, G. , Probert, I. and Young, J. (2008)
Adaptation Of Coccolith Calcification To Sea Water Carbonate Chemistry ,

AGU Fall Meeting, San Francisco, CA. .

hdl:10013/epic.32881

Conference -Talk

Ziveri, P. , Langer, G. , Probert, I. and Young, J. (2008)
Adaptation of coccolithophore calcification to seawater carbonate chemistry ,

12th International Nannoplankton Association Meeting, Lyon, France. .

hdl:10013/epic.32883

Conference -Invited talk

Langer, G. , Probert, I. , Rost, B.

and Ziveri, P. (2008)
Coccolithophore calcification-response to changing seawater carbonate chemistry ,

AGU Fall Meeting, San Francisco, CA. .

hdl:10013/epic.32043

Conference -Poster

Komada, T. , Benner, I. and Langer, G. (2008)
Effect of elevated nitrate concentration on calcification in Emiliania huxleyi ,

AGU Fall Meeting, San Francisco, CA. .

hdl:10013/epic.32041

Conference -Invited talk

Langer, G. , Probert, I. , Rost, B.

and Ziveri, P. (2008)
Effects of ocean acidification on the calcification of coccolithophores - Evidence from experimental studies ,

12th International Nannoplankton Association Meeting, Lyon, France. .

hdl:10013/epic.32042

Conference -Poster

Stoll, H. , Shimizu, N. and Langer, G. (2008)
Investigating B/Ca of coccoliths using SIMS ion probe analysis ,

AGU Fall Meeting, San Francisco, CA. .

hdl:10013/epic.32882

Conference -Poster

Thoms, S. , Langer, G. , Gussone, N. , Nehrke, G.

and Stoll, H. M. (2008)
Modeling the strontium to calcium ratios in coccoliths of Emiliania huxley ,

European Geosciences Union, General Assembly 2008, 13 18 April, Vienna, Austria. .

hdl:10013/epic.30460

Conference -Poster

Langer, G. , Ziveri, P. , Geisen, M. and Thoms, S. (2008)
Oxygen isotope fractionation during calcification in Calcidiscus leptoporus: The influence of carbonate chemistry ,

European Geosciences Union, General Assembly 2008, 13 18 April, Vienna, Austria. .

hdl:10013/epic.30459

Conference -Talk

Ziveri, P. , Thoms, S. , Langer, G. , Probert, I. and Rost, B.

(2008)
d18O vital effects and cell physiology: link to species-specific response to ocean acidification ,

European Geosciences Union, General Assembly 2008, 13 18 April, Vienna, Austria. .

hdl:10013/epic.30461

Conference -Poster

Ziveri, P. , Langer, G. , Thoms, S. , Probert, I. , Rost, B.

and Stoll, H. M. (2007)
Establishing the link between d18O vital effects and cell physiology in planktonic calcifying organisms (coccolithophores and foraminifera) ,

9th International Conference in Paleoceanography - ICP9. 3-7 September 2007. Shanghai, China. .

hdl:10013/epic.27694

Conference -Talk

Trimborn, S.

, Langer, G. , Richter, K. U. and Rost, B.

(2006)
Effects of [Ca2+] and Irradiance on Calcification and Photosynthesis in the Coccolithophore Emiliania huxleyi (Haptophyceae) ,

ASLO Summer Meeting, 4-9 June, Victoria, Canada. .

hdl:10013/epic.25490

Conference -Poster

Piontek, J. , Langer, G. , Händel, N. , Riebesell, U. , Wohlers, J. and Engel, A. (2006)
Effects of rising temperature on the decomposition of phytoplankton aggregates ,

3rd AQUASHIFT workshop, 14.-16.11.2006, Kiel. .

hdl:10013/epic.25955

Conference -Poster

Piontek, J. , Langer, G. , Händel, N. , Riebesell, U. and Engel, A. (2006)
Effects of rising temperature on the microbial decomposition of sinking organic material in the surface ocean ,

ESSP Global Change Open Science Conference, 9.-12.11.2006, Beijing, China. .

hdl:10013/epic.26013

Conference -Invited talk

Geisen, M. and Langer, G. (2006)
Einfluss anthropogener CO2-Emissionen auf kalzifizierende marine Biota - ein Review ,

Invited talk, Biodiversität und Klima - Vernetzung der Akteure in Deutschland III, 24-27 Sept., Bundesamt für Naturschutz, Vilm. .

hdl:10013/epic.25801

Conference -Poster

Gussone, N. , Langer, G. , Geisen, M. , Eisenhauer, A. , Riebesell, U. , Wefer, G. and Thoms, S. (2006)
Fractionation processes of calcium isotopes in marine coccolithophores ,

EGU General Assembly, 02.-07. April, Vienna, Austria, Geophysical Research Abstracts, Vol. 8 .

hdl:10013/epic.25673

Conference -Talk

Trimborn, S.

, Langer, G. , Richter, K. U. and Rost, B.

(2006)
Photosynthesis and Calcification in Emiliania huxleyi ,

Biodiversity of Open Ocean Microcalcifiers, Kickoff Meeting, 1-3 March, Villefranche-sur-Mer, France. .

hdl:10013/epic.25491

Conference -Talk

Langer, G. , Geisen, M. , Riebesell, U. , Kläs, J. , Krug, S. , Baumann, K. H. and Young, J. R. (2006)
The response of Calcidiscus leptoporus and Coccolithus pelagicus to changing carbonate chemistry of seawater ,

EGU General Assembly, 02.-07. April, Vienna, Austria, Geophysical Research Abstracts, Vol. 8 .

hdl:10013/epic.25674

Conference -Talk

Gussone, N. , Langer, G. , Thoms, S. , Eisenhauer, A. , Riebesell, U. and Wefer, G. (2005)
Cellular calcium pathways: a key to understand Ca isotope fractionation in Emiliania huxleyi. ,

MSG meeting Biogeochemical Controls on Palaeoceanographic Proxies, Geological Society, 3-4 October, London, UK. .

hdl:10013/epic.25335

Conference -Invited talk

Gussone, N. , Langer, G. , Thoms, S. , Eisenhauer, A. , Riebesell, U. and Wefer, G. (2005)
Coccolith biomineralisation and Ca isotope fractionation in Emiliania huxleyi ,

4th Ca-Workshop, Amsterdam. .

hdl:10013/epic.25677

Conference -Poster

Langer, G. , Gussone, N. , Nehrke, G.

, Riebesell, U. , Eisenhauer, A. , Kuhnert, H. , Rost, B.

, Trimborn, S.

and Thoms, S. (2005)
Coccolith strontium to calcium ratios in Emiliania huxleyi: The dependence on seawater strontium and calcium concentrations. ,

MSG meeting Biogeochemical Controls on Palaeoceanographic Proxies, Geological Society, 3-4 October, London, UK. .

hdl:10013/epic.25337

Conference -Talk

Gussone, N. , Langer, G. , Geisen, M. , Eisenhauer, A. , Riebesell, U. , Wefer, G. and Thoms, S. (2005)
Fractionation of Calcium Isotopes in Marine Coccolithophores. ,

Annual Meeting of the Geologische Vereinigung (GV), 24-29 September, Erlangen, Germany. .

hdl:10013/epic.25338

Conference -Invited talk

Zondervan, I. and Langer, G. (2005)
What controls the biogenic calcium carbonate to organic carbon production ratio in coccolithophores? ,

Invited Lecture, AGU Chapman Conference on The Role of Organic Carbon and Calcite Fluxes in Driving Global Climate Change, Past and Future, 24-27 July, Woods Hole, MA, USA. .

hdl:10013/epic.23735

Conference -Poster

Engel, A. , Langer, G. , Piontek, J. , Händel, N. and Szlosek, J. (2005)
Wie verändert sich die Biogeochemie des Ozeans im Anthropozaen? ,

Wissenswerte, 28.-30.11.2005, Bremen, Germany. .

hdl:10013/epic.24959

Conference -Invited talk

Geisen, M. , Langer, G. , Riebesell, U. , Probert, I. , Baumann, K. H. and Young, J. R. (2004)
Effects of CO2 variation on marine calcification - new evidence from coccolithophores ,

Invited Lecture, Palaeontology Department Seminar Series, Florence University, Italy .

hdl:10013/epic.22157