Browse by Creators (Kiel)

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Number of items: 16.

Article in a Scientific Journal - peer-reviewed

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Hauss, H., Franz, J., Hansen, T., Struck, U. and Sommer, U. (2013) Relative inputs of upwelled and atmospheric nitrogen to the eastern tropical North Atlantic food web: Spatial distribution of δ15N in mesozooplankton and relation to dissolved nutrient dynamics Deep Sea Research Part I: Oceanographic Research Papers, 75 . pp. 135-145. DOI 10.1016/j.dsr.2013.01.010.

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Franz, J., Krahmann, G., Lavik, G., Grasse, P., Dittmar, T. and Riebesell, U. (2012) Dynamics and stoichiometry of nutrients and phytoplankton in waters influenced by the oxygen minimum zone in the eastern tropical Pacific Deep Sea Research Part I: Oceanographic Research Papers, 62 . pp. 20-31. DOI 10.1016/j.dsr.2011.12.004.

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Ehlert, C., Grasse, P., Mollier-Vogel, E., Böschen, T., Franz, J., de Souza, G. F., Reynolds, B. C., Stramma, L. and Frank, M. (2012) Factors controlling the silicon isotope distribution in waters and surface sediments of the Peruvian coastal upwelling Geochimica et Cosmochimica Acta, 99 . pp. 128-145. DOI 10.1016/j.gca.2012.09.038.

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Franz, J., Hauss, H., Sommer, U., Dittmar, T. and Riebesell, U. (2012) Production, partitioning and stoichiometry of organic matter under variable nutrient supply during mesocosm experiments in the tropical Pacific and Atlantic Ocean Biogeosciences (BG), 9 (11). pp. 4629-4643. DOI 10.5194/bg-9-4629-2012.

Conference presentation


Grasse, P., Ehlert, C., Franz, J., Böschen, T., Mollier-Vogel, E., Stramma, L. and Frank, M. (2012) Silicon isotope distribution in waters and surface sediments of the Peruvian coastal upwelling [Talk] In: IBIS Hamburg 2012, Isotopes in Biogenic Silica (IBiS) 2012 Meeting, 28.05.-30.05.2012, Hamburg.


Grasse, P., Ehlert, C., Stramma, L., Ryabenko, E., Franz, J. and Frank, M. (2011) Silicon isotopes as a tracer for silicate utilization in the Peruvian upwelling [Talk] In: Goldschmidt Conference 2011, 14.-19.08.2011, Prague, Czech Republic.


Hauss, H., Franz, J. and Sommer, U. (2011) Virtues and Vices of shipboard mesocosms in simulating upwelling events [Invited talk] In: MESOAQUA PhD Course/Workshop, 29.08.-02.09.2011, IFM-GEOMAR, Kiel, Germany.


Franz, J., Hauss, H., Sommer, U. and Riebesell, U. (2010) Phytoplankton Responses to Changes in Nutrient Stoichiometry in the Eastern South Pacific [Talk] In: Ocean Sciences Meeting 2010 "Oxygen Minimum Zones and Climate Change: Observations and Prediction IV", 22.02.-26.02.2010, Portland, Oregon, USA.


Franz, J. (2009) Phytoplankton Community Responses to Changes in Nutrient Stoichiometry in the Eastern South Pacific [Talk] In: FB2 Seminar, Leibniz-Institute of Marine Sciences (IFM-GEOMAR), 09.11.2009, Kiel, Germany.

Conference poster


Franz, J., Krahmann, G., Lavik, G., Grasse, P. and Riebesell, U. (2011) Distribution of phytoplankton in the tropical Eastern South Pacific in relation to hydrographic and nutrient conditions [Poster] In: EGU General Assembly 2011, 03.-08.04.2011, Vienna, Austria.

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Hauss, H., Franz, J. and Sommer, U. (2010) Zooplankton response to redox-induced changes in nutrient stoichiometry: Mesocosm experiments in tropical upwelling areas [Poster] In: Ocean Sciences Meeting 2010 "Oxygen Minimum Zones and Climate Change: Observations and Prediction IV", 22.02.-26.02.2010, Portland, Oregon, USA.


Franz, J., Barcelos e Ramos, J. and Riebesell, U. (2009) Impact of CO2 on the filamentous Baltic Sea cyanobacterium Anabaena spec. [Poster] In: SOPRAN-Retreat, 19.-20.03, Bremerhaven.

Thesis - not published by a publisher

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Franz, J. (2012) Effects of changing N:P supply on phytoplankton in the eastern tropical Pacific and Atlantic Ocean (Doctoral thesis/PhD), Christian-Albrechts-Universität Kiel, Kiel, Germany, 153 pp


Franz, J. (2008) Impact of CO2 on the filamentous Baltic Sea cyanobacterium Aphanizomenon flos-aquae (Diploma thesis), Christian-Albrechts-Universität, Kiel, 87 pp

Report - Cruise Report


Wallace, D. W. R., Tanhua, T., Banyte, D., Dippe, T., Karbe, F. R., Link, R., Silva, P., Franz, J., Hansen, T., Hauss, H., Nachtigall, K., Franzke, D., Fuessel, J., Kalvelage, T., Fischer, T., Gill, D., Kock, A., Stange, K., Baars, O., Dammshäuser, A., Manke, A., Noll, L., Syre, S., Zocher, J. and Raeke, A. (2013) Guinea Upwelling Tracer Release Experiment – Cruise No. M80/2 – November 26 – December 22, 2009 – Mindelo (Cape Verde) – Dakar (Senegal) Meteor-Berichte, M80/2 . UNSPECIFIED. DOI 10.2312/cr_m80_2.

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