Number of items: 43.

Articles in a Scientific Journal - peer-reviewed

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Priester, C. R., Dierking, J. , Hansen, T., Abecasis, D., Fontes, J. M. and Afonso, P. (2024) Trophic ecology and coastal niche partitioning of two sympatric shark species in the Azores (mid-Atlantic). Open Access Marine Ecology Progress Series, 726 . pp. 113-130. DOI 10.3354/meps14487.

[thumbnail of Bonnet-Lebrun2021_Article_ColdComfortArcticSeabirdsFindR.pdf] [thumbnail of 13280_2021_1650_MOESM1_ESM.pdf]

Bonnet-Lebrun, A. S., Larsen, T., Thórarinsson, T. L., Kolbeinsson, Y., Frederiksen, M., Morley, T. I., Fox, D., Boutet, A., le Bouard, F., Deville, T., Hansen, E. S., Hansen, T., Roberts, P. and Ratcliffe, N. (2022) Cold comfort: Arctic seabirds find refugia from climate change and potential competition in marginal ice zones and fjords. Open Access Ambio, 51 . pp. 345-354. DOI 10.1007/s13280-021-01650-7.

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Djeghri, N., Pondaven, P., Le Grand, F., Bideau, A., Duquesne, N., Stockenreiter, M., Behl, S., Huang, J. Y. T., Hansen, T., Patris, S., Ucharm, G. and Stibor, H. (2021) High trophic plasticity in the mixotrophic Mastigias papua-Symbiodiniaceae holobiont: implications for the ecology of zooxanthellate jellyfishes. Marine Ecology Progress Series, 666 . pp. 73-88. DOI 10.3354/meps13707.

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Chi, X. , Dierking, J. , Hoving, H. J. T. , Lüskow, F., Denda, A., Christiansen, B., Sommer, U., Hansen, T. and Javidpour, J. (2021) Tackling the jelly web: Trophic ecology of gelatinous zooplankton in oceanic food webs of the eastern tropical Atlantic assessed by stable isotope analysis. Open Access Limnology and Oceanography, 66 (2). pp. 289-305. DOI 10.1002/lno.11605.

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Djeghri, N., Pondaven, P., Stockenreiter, M., Behl, S., Huang, J. Y. T., Hansen, T., Patris, S., Ucharm, G. and Stibor, H. (2020) Isotopic and elemental compositions reveal density‐dependent nutrition pathways in a population of mixotrophic jellyfish. Open Access Ecosphere, 11 (11). Art.NR. e03295. DOI 10.1002/ecs2.3295.

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Larsen, T. , Hansen, T. and Dierking, J. (2020) Characterizing niche differentiation among marine consumers with amino acid δ 13 C fingerprinting . Open Access Ecology and Evolution, 10 (14). pp. 7768-7782. DOI 10.1002/ece3.6502.

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Burian, A. , Nielsen, J. M., Hansen, T., Bermudez, R. and Winder, M. (2020) The potential of fatty acid isotopes to trace trophic transfer in aquatic food-webs. Philosophical Transactions of the Royal Society B: Biological Sciences, 375 (1804). p. 20190652. DOI 10.1098/rstb.2019.0652.

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Winder, M., Bouquet, J. M., Bermudez, J. R., Berger, S. A., Hansen, T., Brandes, J., Sazhin, A. F., Nejstgaard, J. C., Båmstedt, U., Jakobsen, H. H., Dutz, J., Frischer, M. E., Troedsson, C. and Thompson, E. M. (2017) Increased appendicularian zooplankton alter carbon cycling under warmer more acidified ocean conditions. Open Access Limnology and Oceanography, 62 (4). pp. 1541-1551. DOI 10.1002/lno.10516.

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Garzke, J., Hansen, T., Ismar, S. M. H. and Sommer, U. (2016) Combined Effects of Ocean Warming and Acidification on Copepod Abundance, Body Size and Fatty Acid Content. Open Access PLoS ONE, 11 (5). e0155952. DOI 10.1371/journal.pone.0155952.

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Kürten, B., Al-Aidaroos, A. M., Kürten, S., El-Sherbiny, M. M., Devassy, R. P., Struck, U., Zarokanellos, N., Jones, B. H., Hansen, T., Bruss, G. and Sommer, U. (2016) Carbon and nitrogen stable isotope ratios of pelagic zooplankton elucidate ecohydrographic features in the oligotrophic Red Sea. Progress in Oceanography, 140 . pp. 69-90. DOI 10.1016/j.pocean.2015.11.003.

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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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Aberle, N., Hansen, T., Böttger-Schnack, R. , Burmeister, A., Post, A. F. and Sommer, U. (2010) Differential routing of "new" nitrogen towards higher trophic levels within the marine food web of the Gulf of Aqaba, northern Red Sea. Marine Biology, 157 . pp. 157-169. DOI 10.1007/s00227-009-1306-y.

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Javidpour, J. , Molinero, J. C., Lehmann, A., Hansen, T. and Sommer, U. (2009) Annual assessment of the predation of Mnemiopsis leidyi in a new invaded environment, the Kiel Fjord (Western Baltic Sea): a matter of concern?. Journal of Plankton Research, 31 (7). pp. 729-738. DOI 10.1093/plankt/fbp021.

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Ismar, S. M. H. , Hansen, T. and Sommer, U. (2008) Effect of food concentration and type of diet on Acartia survival and naupliar development. Marine Biology, 154 . pp. 335-343. DOI 10.1007/s00227-008-0928-9.

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Jaschinski, S., Hansen, T. and Sommer, U. (2008) Effects of Acidification in multiple stable Isotope Analyses. Limnology and Oceanography: Methods, 6 . pp. 12-15. DOI 10.4319/lom.2008.6.12.

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Sommer, U., Aberle, N., Engel, A. , Hansen, T., Lengfellner, K., Sandow, M., Wohlers, J., Zöllner, E. and Riebesell, U. (2007) An indoor mesocosm system to study the effect of climate change on the late winter and spring succession of Baltic Sea phyto- and zooplankton. Oecologia, 150 (4). pp. 655-667. DOI 10.1007/s00442-006-0539-4.

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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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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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Ptacnik, R., Sommer, U., Hansen, T. and Martens, V. (2004) Effects of microzooplankton and mixotrophy in an experimental planktonic food web. Limnology and Oceanography, 49 . pp. 1435-1445. DOI 10.4319/lo.2004.49.4_part_2.1435.

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Stibor, H., Vadstein, O., Diehl, S., Gelzleichter, A., Hansen, T., Hantzsche, F., Katechakis, A., Lippert, B., Loeseth, K., Petersen, C., Roederer, W., Sandow, M., Sundt-Hansen, L. and Olsen, Y. (2004) Copepods act as switch between alternative trophic cascades in marine pelagic food webs. Ecology Letters, 7 (4). pp. 321-328. DOI 10.1111/j.1461-0248.2004.00580.x.

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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., Berninger, U. G., Böttger-Schnack, R. , Cornils, A., Hagen, W., Hansen, T., Al-Najjar, T., Post, A. F., Schnack-Schiel, S. B., Stibor, H., Stübing, D. and Wickham, S. (2002) Grazing during the spring bloom in the Gulf of Aquaba and the Northern Red Sea. Open Access Marine Ecology Progress Series, 239 . pp. 251-261. DOI 10.3354/meps239251.

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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.

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


Lengfellner, K., Aberle, N., Sandow, M., Hansen, T. and Sommer, U. (2006) The impact of climate change on plankton spring succession: a mesocosm study. [Talk] In: ASLO 2006 Summer Meeting. , 05.06, Victoria, British Columbia, Canada .


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 .


Lengfellner, K., Aberle, N., Sandow, M., Hansen, T. and Sommer, U. (2005) Plankton spring succession in response to warming winters. [Other] In: 2. AQUASHIFT Workshop. , 28.09.2005, Kiel .

Conference posters


Mittermayr, A. and Hansen, T. (2014) Tracing eelgrass foodwebs: simultaneous analysis of d13C, d15N and d34S of low biomass samples. [Poster] In: Advances in Stable Isotope Techniques and Applications (ASITA). , 15.-18.06.2014, Davis, CA, USA .


Ismar, S. M. H. , Lengfellner, K., Hansen, T. and Sommer, U. (2006) Climate change impacts on the autumn succession of phytoplankton: an experimental analysis with Baltic Sea plankton. [Poster] In: ASTRA Conference Are we prepared to cope with climate changes?- Consequences of the winter storm 2005. , 18.-19.05.2006, Klaipeda, Lithuania .

Reports - Cruise Reports


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, 33 pp. DOI 10.2312/cr_m80_2.

This list was generated on Tue Jul 23 12:46:41 2024 CEST.