Items where Author is "Sommer, Frank"

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Number of items: 24.

Articles in a Scientific Journal - peer-reviewed

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Sommer, F., Agurto, C., Henriksen, P. and Kioerboe, T. (2006) Astaxanthin in the calanoid copepod Calanus helgolandicus: dynamics of esterfication and vertical distribution in the German Bight, North Sea. Open Access Marine Ecology Progress Series, 319 . pp. 167-173. DOI 10.3354/meps319167.

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Sommer, F., Hansen, T. and Sommer, U. (2006) Transfer of diazotrophic nitrogen to mesozooplankton in Kiel Fjord, Western Baltic Sea: a mesocosm study. Open Access Marine Ecology Progress Series, 324 . pp. 105-112. DOI 10.3354/meps324105.

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Becker, C., Brepohl, D. C., Feuchtmayr, H., Zöllner, E., Sommer, F., Clemmesen, C. , Sommer, U. and Boersma, M. (2005) Impacts of copepods on marine seston and resulting effects on Calanus finmarchicus RNA: DNA ratios in mesocosm experiments. Marine Biology, 146 . pp. 531-541. DOI 10.1007/s00227-004-1459-7.

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Sommer, F., Saage, A., Santer, B., Hansen, T. and Sommer, U. (2005) Linking foraging strategies of marine calanoid copepods to patterns of nitrogen stable isotope signatures in a mesocosm study. Open Access Marine Ecology Progress Series, 286 . pp. 99-106. DOI 10.3354/meps286099.

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Sommer, F. and Sommer, U. (2004) δ15N signatures of marine zooplankton and seston size fractions in Kiel Fjord, Baltic Sea. Journal of Plankton Research, 26 . pp. 495-500. DOI 10.1093/plankt/fbh048.

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Sommer, F., Hansen, T., Feuchtmayr, H., Santer, B., Tokle, N. and Sommer, U. (2003) Do calanoid copepods supress appendicularians in the coastal ocean?. Journal of Plankton Research, 25 . pp. 869-871. DOI 10.1093/plankt/25.7.869.

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Sommer, F., Santer, B., Jamieson, C., Hansen, T. and Sommer, U. (2003) Daphnia population growth but not moulting is a substantial phosphorus drain for phytoplankton. Freshwater Biology, 48 (1). pp. 67-74.

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Sommer, U., Sommer, F., Santer, B., Zöllner, E., Jürgens, K., Jamieson, C., Boersma, M. and Gocke, K. (2003) Daphnia versus copepod impact on summer phytoplankton: functional compensation at both trophic levels. Oecologia (135). pp. 639-647. DOI 10.1007/s00442-003-1214-7.

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Prieto, L., Sommer, F., Stibor, H. and Koeve, W. (2001) Effects of Planktonic Copepods on Transparent Exopolymeric Particles (TEP) Abundance and Size Spectra. Journal of Plankton Research, 23 . pp. 515-525. DOI 10.1093/plankt/23.5.515.

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Sommer, U., Sommer, F., Santer, B., Jamieson, C., Boersma, M., Becker, C. and Hansen, T. (2001) Complementary impact of copepods and cladocerans on phytoplankton. Ecology Letters, 4 (6). pp. 545-550. DOI 10.1046/j.1461-0248.2001.00263.x.

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Sommer, F., Stibor, H., Sommer, U. and Velimirov, B. (2000) Grazing by mesozooplankton from Kiel Bight, Baltic Sea, on different sized algae and natural seston size fractions. Open Access Marine Ecology Progress Series, 199 . pp. 43-53. DOI 10.3354/meps199043.

Book chapters

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Sommer, U., Stibor, H., Katechakis, A., Sommer, F. and Hansen, T. (2002) Pelagic food web configurations at different levels of nutrient richness and their implications for the ratio fish production: primary production. In: Sustainable Increase of Marine Harvesting: Fundamental Mechanisms and New Concepts: Proceedings of the 1 st Maricult Conference held in Trondheim, Norway, 25-28 June 2000. , ed. by Vadstein, O. and Olsen, Y.. Developments in Hydrobiology, 167 . Springer, Berlin, Germany, pp. 11-20. ISBN 978-90-481-6217-8 DOI 10.1007/978-94-017-3190-4_2.

Presentations


Bleich, M., Melzner, F., Hiebenthal, C. , Mempel, H., Schulz, K., Riebesell, U. , Wahl, M. , Sommer, F., Sommer, U., Form, A., Piatkowski, U. , Hanel, R., Piepenburg, D., Spindler, M., Eisenhauer, A. , Franke, A., Möller, V., Baumert, G. A. and Clemmesen, C. (2008) Kiel CO2 manipulation experimental facility (KICO2). [Talk] In: Second Symposium on The Ocean in a High-CO2 World. , 06.-09.10, Monaco .


Sommer, F. (2008) Impact of temperature and salinity on Mnemiopsis leidyi respiration and excretion rates. [Talk] In: 43. European Marine Biology Symposium (EMBS). , 12.09.2008, Punta Delgada, Azores, Portugal .


Sommer, F. (2007) Effect of global warming on top-down control of a Baltic Sea plankton community. [Talk] In: 42. European Marine Biology Symposium (EMBS). , 30.08.2007, Kiel, Germany .


Agurto, C., Sommer, F., Sommer, U. and Hansen, T. (2005) Assessing trophic levels of mesozooplankton in the central Baltic Sea and North Sea: a stable isotope study. [Other] In: UNSPECIFIED. , 03.10, Valdivia, Chile .


Agurto, C., Sommer, F., Sommer, U., Hansen, T. and Rautenstrauch, C. (2005) Stable isotope (δ13C and 15N signatures analyses) signatures of mesozooplankton and seston size fractions at the Central Baltic Sea: Bornholm Basin. [Other] In: FE Seminar. , 02.09, Kiel .


Agurto, C., Sommer, F., Sommer, U., Hansen, T. and Rautenstrauch, C. (2005) Trophic structure of mesozooplankton in the Central Baltic Sea: δ13C and 15N signatures analysis. [Other] In: Cycle of Conferences in Oceanography. , 24.01, Concepción, Chile .

Conference posters


Javidpour, J. , Sommer, F. and Sommer, U. (2007) High Phytoplankton Densities Reduce Feeding Rate of Ctenophores. [Poster] In: 15th International Conference on Aquatic Invasive Species. , 23.-27.09, Nijmegen, The Netherlands .

Theses - not published by a publisher


Sommer, F. (2003) A comparison of the impact of major mesozooplankton taxa on marine, brackish and freshwater phytoplankton during summer. (PhD/ Doctoral thesis), Christian-Albrechts-Universität, Institut für Meereskunde, 91 pp.

Reports - other reports

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Sommer, F. (2003) A comparison of the impact of major mesozooplankton taxa on marine, brackish and freshwater phytoplankton during summer. Open Access . Berichte aus dem Institut für Meereskunde an der Christian-Albrechts-Universität Kiel, 329 . Institut für Meereskunde, Kiel, Germany, 91 pp. DOI 10.3289/ifm_ber_329.

This list was generated on Wed Dec 11 11:35:50 2019 CET.