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Klaus Jürgens - Publications


●  Beier, S., Shen, D., Schott, T., Jürgens, K. (2017): Metatranscriptomic data reveal the effect of different community properties on multifunctional redundancy. Molec. Ecol. 26: 6813-6826.

●  Anderson, R., Jürgens, K., Hansen, P.J. (2017):  Mixotrophic phytoflagellate bacterivory field measurements strongly biased by standard approaches: a case study. Front. Microbiol. 8: 1398. Doi: 10.3389/fmicb.2017.01398

●  Köstner, N., Scharnreitner, L., Jürgens, K., Labrenz, M., Herndl, G.J.,Winter, C. (2017): High viral abundance as a consequence of low viral decay in the Baltic Sea redoxcline. Plos One 12(6): e0178467.

●  Rogge, A., Vogts, A., Voss, M., Jürgens, K., Jost, G., Labrenz, M. (2017): Success of chemolithoautotrophic SUP05 and Sulfurimonas GD17 cells in pelagic Baltic Sea redox zones is facilitated by their lifestyles as k- and r-strategists. Environ.Microbiol. 19: 2495-2506.

●  Herlemann, D.P.R., Manecki, M., Dittmar, T., Jürgens, K. (2017): Limited decomposition of terrigenous dissolved organic matter in the Baltic Sea: Role of abiotic and biotic factors. Environ.Microbiol. 19: 3098-3117.

●  Andersson, A., Tamminen, T., Lehtinen, S., Jürgens, K., Labrenz, M., Viitasalo, M. (2017): The pelagic food web. In: Biological Oceanography of the Baltic Sea, Eds: Snoeijs-Leijonmalm, P., Schubert, H., Radziejewska, T. (eds). Springer: p.281-332.

  Fuchs, A., Klier, J., Pinto, F., Selmeczy, G.B., Szabó, B., Padisák, J., Jürgens, K., Casper, P. (2017): Effects of artificial thermocline deepening on sedimentation rates and microbial processes in the sediment. Hydrobiologia 799: 65-81.

  Seidel, M., Manecki, M., Herlemann, D.P.R., Deutsch, B., Schulz-Bull, D., Jürgens, K., Dittmar, T. (2017): Composition and transformation of dissolved organic matter in the Baltic Sea. Front. Earth Sci. 5: 31.doi: 10.3389/feart.2017.00031

   Weber, F., Mylnikov, A.P., Jürgens, K., Wylezich, C. (2017): Culturing Protists from the Baltic Sea: Mostly the “usual suspects” but a few novelties as well. J. Euk. Microbiol. 64: 153-163

   v.Scheibner, M., Sommer, U., Jürgens, K. (2017): Tight Coupling of Glaciecola spp. and diatoms during cold-water phytoplankton spring blooms. Front. Microbiol. 8: 27. doi: 10.3389/fmicb.2017.00027



D. Numberger, G. Dehnhardt, D. Herlemann, K. Jürgens, H. Schulz-Vogt (2016): Comparative analysis of the fecal flora of five harbor seals (Phoca vitulina). MicrobiologyOpen doi: 10.1002/mbo3.369.

D. Herlemann, D. Lundin, A. Andersson, M. Labrenz, K. Jürgens (2016): Phylogenetic signals of salinity and season in bacterial community composition across the salinity gradient of the Baltic Sea. Frontiers Microbiol. 7:1883.doi: 10.3389/fmicb.2016.01883

B. Bergen, S. Endres, A. Engel, M. Zark, T. Dittmar, U. Sommer, K. Jürgens (2016): Acidification and warming affect prominent bacteria during two seasonal phytoplankton bloom mesocosms. Environ. Microbiol. 18: 4579–4595.

T.H. Haileselasie, J. Mergeay, L.J .Weider, R. Sommaruga,  T.A. Davidson, M. Meerhoff, H., Arndt, K. Jürgens, E. Jeppesen, L. D. Meester (2016): Environment not dispersal limitation drives clonal composition of Arctic Daphnia in a recently deglaciated area. Molec.Ecol. 25: 5830-5842.



Eronen-Rasimus, E., Lyra, C., Rintala, J.-M., Jürgens, K., Ikonen, V., Kaartokallio, H. (2015): Ice formation and growth shape bacterial community structure in Baltic Sea drift ice. FEMS Microbiol. Ecol. 91: doi: 10.1093/femsec/fiu022

Berg, C., Listmann, L., Vandieken, V., Vogts, A., Jürgens, K. (2015): Chemoautotrophic growth of ammonia-oxidizing Thaumarchaeota enriched from a pelagic redox gradient in the Baltic Sea. Front. Microbiol. 5: 786. doi: 10.3389/fmicb.2014.00786

Berg, C., Vandieken, V., Thamdrup, B., Jürgens, K. (2015): Significance of archaeal nitrification in hypoxic waters of the Baltic Sea. ISME J. 9: 1319-1332.

Bergen, B., Herlemann, D.P.R., Jürgens, K. (2015): Zonation of bacterioplankton communities along aging upwelled water in the northern Benguela upwelling. Frontiers in Microbiology. Doi: 10.3389/fmicb.2015.00621

Mylnikov, A.P., Weber, F., Jürgens, K., Wylezich, C. (2015): Massisteria marina has a sister: Massisteria voersi sp. nov., a rare species isolated from coastal waters of the Baltic Sea. Europ. J. Protistol. 51: 299-310

Orlikowska, A., Stolle, C., Pollehne, F., Jürgens, K., Schulz-Bull, D.E. (2015): Dynamics of halocarbons in coastal surface waters during short term mesocosm experiments. Environ. Chem. 12:515-525.

Rieck, A., Herlemann, D.P.R., Jürgens, K., Grossart, H.-P. (2015): Particle-associated differ from free-living bacteria in surface waters of the Baltic Sea. Frontiers in Microbiology, Vol.6, doi:10.3389/fmicb.2015.01297



Salka, I., Wurzbacher, C., Garcia, S.L., Labrenz, M., Jürgens, K., Grossart, H.-P. (2014): Distribution of acI-Actinorhodopsin genes in Baltic Sea salinity gradients indicates adaptation of facultative freshwater photoheterotrophs to brackish waters. Environ. Microb. 16: 586-597.

Glaubitz, S., Abraham, W.-R., Jost, G., Labrenz, M., Jürgens, K. (2014): Pyruvate utilization by a chemolithoautotrophic epsilonproteobacterial key player of pelagic Baltic Sea redoxclines. FEMS Microb. Ecol. 87: 770–779.

v.Scheibner, M., Dörge, P., Biermann, A., Sommer, U., Hoppe, H.-G., Jürgens, K. (2014): Impact of warming on phyto-bacterioplankton coupling and bacterial community composition in experimental mesocosms. Environ. Microbiol. 16: 718-733.

Mikkel Bentzon-Tilia, M., Farnelid, H., Jürgens, K., Riemann, L. (2014): Cultivation and isolation of N2-fixing bacteria from suboxic waters in the Baltic Sea. FEMS Microb. Ecol. 88: 358-371.

 Herlemann, D.P.R., Manecki, M., Meeske, C., Pollehne, F., Labrenz, M., Schulz-Bull, D., Dittmar, T., Jürgens, K. (2014): Uncoupling of bacterial and terrigenous dissolved organic matter dynamics in decomposition experiments. PLOS One 9(4): e93945.doic: 10.1371/journal.pone.0093945

Weber, F., Anderson, R., Foissner, W., Mylnikov, A.P., Jürgens, K. (2014): Morphological and molecular approaches reveal highly stratified protist communities along Baltic Sea pelagic redox gradients. Aquat. Microb. Ecol. 73: 1-16

 Bergen, B., Herlemann, D.P.R., Labrenz, M., Jürgens, K. (2014): Distribution of the verrucomicrobial clade Spartobacteria along a salinity gradient in the Baltic Sea. Environ. Microbiol. Reports 6: 625-630.

 Herlemann, D.P.R., Woelk, J., Labrenz, M., Jürgens, K. (2014): Diversity and abundance of “Pelagibacterales” (SAR11) in the Baltic Sea salinity gradient. Syst. Appl. Microbiol. 37: 601-604.

Frey, C., Hietanen, S., Jürgens, K., Labrenz, M., Voss, M. (2014): N and O isotope fractionation in nitrate during chemolithoautotrophic denitrification by Sulfurimonas gotlandica. Environ. Sci. Technol. 48: 13229–13237.



Anderson, R., Wylezich, C., Glaubitz, S., Labrenz, M., Jürgens, K. (2013): Impact of protist grazing on a key bacterial group for biogeochemical cycling in Baltic Sea pelagic oxic/anoxic interfaces. Environ. Microbiol. 15: 1580-1594.

Bruckner, C.G., Mammitzsch, K., Jost, G., Wendt, J., Labrenz, M., Jürgens, K. (2013) Chemolithoautotrophic denitrification of epsilonproteobacteria in marine pelagic redox gradients. Environ. Microbiol. 15: 1505-13

Farnelid, H., Bentzon-Tilia, M., Andersson, A.F., Bertilsson, S., Jost, G., Labrenz, M., Jürgens, K., Riemann, L. (2013): Active nitrogen-fixing heterotrophic bacteria at and below the chemocline of the central Baltic Sea. ISME J. 7: 1413-1423.

Glaubitz, S., Kießlich, K., Meeske, C., Labrenz, M., Jürgens, K. (2013): SUP05 dominates the gammaproteobacterial sulfur oxidizer assemblages in pelagic redoxclines of the central Baltic and Black Seas. Appl. Environ. Microbiol. 79: 2767-2776.

Berg, C., Beckmann, S., Jost, G., Labrenz, M., Jürgens, K. (2013): Acetate-utilizing bacteria at an oxic-anoxic interface in the Baltic Sea. FEMS Microb. Ecol. 85: 251-261.

Herlemann, D.P.R., Lundin, D., Labrenz, M., Jürgens, K., Zheng, Z., Aspeborg, H., Andersson, A.F. (2013): Metagenomic de novo assembly of an aquatic representative of the verrucomicrobial class Spartobacteria. mBio 4(3): doi:10.1128/mBio.00569-12.

Labrenz, M., Grote, J., Mammitzsch, K., Boschker, H. T. S., Laue, M., Jost, G., Glaubitz, S., Jürgens, K. (2013). Sulfurimonas gotlandica sp. nov., a chemoautotrophic and psychrotolerant epsilonproteobacterium isolated from a pelagic Baltic Sea redoxcline, and an emended description of the genus Sulfurimonas. Int. J. Syst. Evol. Microbiol. 63:4141-4148

Mammitzsch, K., Jost, G., Jürgens, K. (2013): Impact of dissolved inorganic carbon concentrations and pH on growth of the chemolithoautotrophic epsilonproteobacterium Sulfurimonas gotlandica GD1T. MicrobiologyOpen doi: 10.1002/mbo3.153



Grote, J., Schott, T., Bruckner, C.G., Glöckner, F.O., Jost, G., Teeling, H., Labrenz, M., Jürgens, K. (2012): Genome and physiology of a model Epsilonproteobacterium responsible for sulfide detoxification in marine oxygen depletion zones. Proc. Nat. Acad. Sci. USA 109: 506-510.

Feike, J., Jürgens, K., Hollibaugh, JT, Krüger, S., Jost, G., Labrenz, M. (2012): Measuring unbiased metatranscriptomics in pelagic aerobic ammonium oxidation zones of the central Baltic Sea based on a new in situ fixation system. ISME J. 6: 461-470.

Hietanen S., Jäntti H., Buizert C., Jürgens K, Labrenz, M., Voss M., Kuparinen J. (2012): Hypoxia and nitrogen processing in the Baltic Sea water column. Limnol. Ocenogr. 57: 325-337.

 Wey, J.K., Jürgens, K., Weitere, M. (2012): Seasonal and successional influences on bacterial community composition exceed that of protozoan grazing in river biofilms. Appl. Environ. Microbiol. 78: 2013-2024.

Weber, F., Campo, J.d., Wylezich, C., Massana, R., Jürgens, K. (2012): Unveiling trophic functions of uncultured protist taxa by incubation experiments in the brackish Baltic Sea. PLOS One 7: e41970. doi: 10.1371/journal.pone.0041970

Lewandowska, A.M., Breithaupt, P., Hillebrand, H., Hoppe, H.-G., Jürgens, K., Sommer, U. (2012): Responses of primary productivity to increased temperature and phytoplankton diversity. J. Sea Res. 72: 87-93.

Anderson, R., Winter, C., Jürgens, K. (2012): Protist grazing and viral lysis as prokaryotic mortality factors at Baltic Sea oxic-anoxic interfaces. Mar. Ecol. Prog. Ser. 467: 1-14.

Bruckner, C.G., Mammitzsch, K., Jost, G., Wendt, J., Labrenz, M., Jürgens, K. (2012) Chemolithoautotrophic denitrification of epsilonproteobacteria in marine pelagic redox gradients. Environ. Microbiol. doi:10.1111/j.1462-2920.2012.02880.x

Wylezich, C., Karpov, S.A., Mylnikov, A.P., Anderson, R., Jürgens, K. (2012): Ecologically relevant choanoflagellates collected from hypoxic water masses of the Baltic Sea have untypical mitochondrial cristae. BMC Microbiology 12:271; DOI: 10.1186/1471-2180-12-271




 Wohlers-Zöllner, J., Breithaupt, P., Walther, K., Jürgens, K., Riebesell, U. (2011): Temperature and nutrient stoichiometry interactively modulate organic matter cycling in a pelagic algal-bacterial community. Limnol. Oceanogr. 56: 599-610 

Stolle, C., Labrenz, M., Meeske, C., Jürgens, K. (2011): Bacterioneuston community structure in the Southern Baltic Sea and its dependence on meteorological conditions. Appl. Environ. Microbiol. 77: 3726-3733.

Anderson, R., Kjelleberg, S., McDougald, D., Jürgens, K. (2011): Species-specific patterns in the vulnerability of carbon-starved bacteria to protist grazing. Aquat. Microb. Ecol. 64: 105-116.

Herlemann, D.P.R., Labrenz, M., Jürgens, K., Bertilsson, S., Waniek, J.J., Andersson, A.F. (2011): Transitions in bacterial communities along the 2000 km salinity gradient of the Baltic Sea. ISME J. 5: 1571-1579.

Wylezich, C., Jürgens, K. (2011): Protist diversity in suboxic and sulfidic waters of the Black Sea. Environ. Microbiol. 13: 2939-2956.




Glaubitz, S., Labrenz, M., Jost, G., Jürgens, K. (2010): Diversity of active chemolithoautotrophic prokaryotes in the sulfidic zone of a Black Sea pelagic redoxcline as determined by 16S rRNA-based stable isotope probing. FEMS Microb. Ecol. 74: 32-41.

Stolle, C., Nagel, K., Labrenz, M., Jürgens, K. (2010): Succession of the sea-surface microlayer in the Baltic Sea under natural and experimentally induced low wind conditions. Biogeosciences 7: 2975-2988.

Labrenz, M., Sintes, E., Toetzke, F., Zumsteg, A., Herndl, G.J., Seidler, M., Jürgens, K. (2010): Relevance of a crenarchaeotal subcluster related to Candidatus Nitrosopumilus maritimus to ammonia oxidation in the suboxic zone of the central Baltic Sea. ISME J. 4: 1496-1508.




Zöllner, E., Hoppe, H.-G., Sommer, U., Jürgens, K. (2009): Effect of zooplankton-mediated trophic cascades on marine microbial food web components (bacteria, nanoflagellates, ciliates). Limnol. Oceanogr. 54: 262-275.

Glaubitz, S., Lueders, T., Abraham, W.-R., Jost, G., Jürgens, K., Labrenz, M. (2009): 13C isotope analyses reveal that chemolithoautotrophic Gamma- and Epsilonproteobacteria feed a microbial food web in a pelagic redoxcline of the central Baltic Sea. Environ. Microbiol. 11: 326-337.

Rodríguez-Martínez, R., Labrenz, M., del Campo, J., Jürgens, K., Massana, R. (2009): Distribution and abundance of the uncultured protist MAST-4 in several oceanic settings by quantitative PCR. Environ. Microbiol. 11: 397-408.

Ayo, B., Latatu, A., Artolozaga, I., Jürgens, K., Iriberri, J (2009): Factors affecting preference responses of the freshwater ciliate Uronema nigricans to bacterial prey. J. Euk. Microbiol. 56: 188-193.

Wohlers, J., Engel, A., Zöllner, E., Breithaupt, P., Jürgens, K., Hoppe, H.-G., Sommer, U., Riebesell, U. (2009): Changes in biogenic carbon flow in response to sea surface warming. Proc. Nat. Acad. Sci. USA 106: 7067-7072.

Deines, P., Matz, C., Jürgens, K. (2009): Toxicity of violacein-producing bacteria fed to bacterivorous freshwater plankton. Limnol. Oceanogr. 54: 1343-1352.

Stock, A., Jürgens, K., Bunge, J., Stoeck, T. (2009): Protistan diversity in the suboxic and anoxic waters of the Gotland Deep (Baltic Sea) as revealed by 18S rRNA clone libraries. Aquat. Microb. Ecol.: 55: 267-284.

Stolle, C., Nagel, K., Labrenz, M., Jürgens, K. (2009): Bacterial activity in the sea-surface microlayer: in situ investigations in the Baltic Sea and the influence of sampling devices. Aquat. Microb. Ecol.  58: 67-78





Jost, G., Zubkov, M.V., Yakushev, E., Labrenz, M. Jürgens, K. (2008): High abundance and production of chemolithoautotrophic bacteria in anoxic waters of the Baltic Sea. Limnol. Oceanogr. 53: 14-22.

Jürgens, K., Massana, R. (2008): Protistan grazing on marine bacterioplankton. In: D.Kirchman (ed.) Microbial Ecology of the Ocean, 2nd edition. Wiley-Liss, pp 383-441.

Atamna-Ismaeel, N., Sabeh, G., Sharon, I., Witzel, K.-P., Labrenz, M., Jürgens, K., Barkay, T., Stomp, M., Huisman, J., Beja, O. (2008):Widespread distribution of proteorhodopsins in freshwater and brackish ecosystems. ISME J. 2: 656-662.

Hoppe, H.-G., Breithaupt, P., Walther, K., Koppe, R., Bleck, S., Sommer, U., Jürgens, K. (2008): Climate warming in winter affects the coupling between phytoplankton and bacteria during the spring bloom: a mesocosm study. Aquat. Microb. Ecol. 51: 105-115

Salka, I., Moulisová, V., Koblížek, M., Jost, G., Jürgens, K., Labrenz, M. (2008): Concentration, depth distribution and composition of aerobic bacteriochlorophyll a producing assemblages in four deeps of the central Baltic Sea. Appl. Environ. Microbiol. 74: 4398-4404.

Corno, G., Jürgens, K. (2008): Structural and functional patterns of bacterial communities in response to protist predation along an experimental productivity gradient. Environ. Microbiol. 10: 2857-2871.

Montagnes, D.J.S.,Barbosa, A.B., Boenigk, J., Davidson, K., Jürgens, K., Macek, M., Parry, J., Roberts, E.C., Šimek, K (2008): Selective feeding behaviour of key free-living protists: avenues for continued study. Aquat. Microb. Ecol. 53: 83-98.

Vázquez-Domínguez, E., Duarte, C.M., Agustí, S., Jürgens, K., Vaqué, D., Gasol, J.M. (2008): Microbial plankton abundance and heterotrophic activity across the Central Atlantic Ocean. Progress in Oceanography 79: 83-94.

Grote, J., Jost, G., Labrenz, M., Herndl, G., Jürgens, K. (2008): Epsilonproteobacteria represent the major portion of chemoautotrophic bacteria in sulfidic waters of pelagic redoxclines of the Baltic and Black Seas. Appl. Environ. Microbiol. 74: 7546-7551




Labrenz, M., Jost, G., Jürgens, K. (2007). Distribution of abundant prokaryotic organisms in the water column of the central Baltic Sea with an oxic-anoxic interface. Aquat. Microb. Ecol. 46:177-190.

Jeppesen, E., Søndergaard, M., Pedersen, A.R., Jürgens, K., Strelczak, A., Lauridsen, T.L., Johansson, L.S. (2007): Salinity induced regime shift in shallow brackish lagoons. Ecosystems 10: 47-57

Hannig, M., Lavik, G., Kuypers, M.M.M., Woebken, D., Martens-Habbena, W., Jürgens, K. (2007): Shift from denitrification to anammox after inflow events in the central Baltic Sea. Limnol. Oceanogr. 52: 1336-1345

Falk, S., Hannig, M., Braker, G., Wardenga, R., Köster, M., Jürgens, K., Gliesche, C. (2007): NirS containing denitrifier communities in the water column and sediment of the Baltic Sea. Biogeosciences 4: 255-268

Grote, J., Labrenz, M., Pfeiffer, B., Jost, G., Jürgens, K. (2007): Quantitative distribution of Epsilonproteobacteria and a Sulfurimonas subgroup in pelagic redoxclines of the central Baltic Sea. Appl. Environ. Microbiol. 73: 7155-7161.




Corno, G., Jürgens, K. (2006): Direct and indirect effects of protist predation on the population size structure of a bacterial strain with high phenotypic plasticity. Appl. Environ. Microbiol. 72: 78-86.

Hannig, M., Braker, G., Dippner, J.W., Jürgens, K. (2006.): Linking denitrifier community structure and prevalent biogeochemical parameters in the pelagial of the central Baltic Proper (Baltic Sea). FEMS Microb. Ecol. 57: 260-271

Jürgens, K. (2006): Predation on bacteria and bacterial resistance mechanisms: Comparative aspects among different predator groups in aquatic systems. In: Predatory Prokaryotes, E. Jurkevitch (ed.). Microbiology Monographs 4: 57-92.





Matz, C., Jürgens, K. (2005): High motility reduces the grazing mortality of planktonic bacteria. Appl. Environ. Microbiol. 71: 921-929

Berglund, J., Jürgens, K., Bruchmüller, I., Wedin, M., Andersson, A. (2005): Use of group-specific PCR primers for identification of chrysophytes by denaturing gradient gel electrophoresis. Aquat. Microb. Ecol. 39: 171-182

Becks, L., Hilkert, F.M., Malchow, H., Jürgens, K., Arndt, H. (2005): Experimental demonstration of chaos in a microbial food web. Nature 435: 1226-1229

Labrenz, M., Jost, G., Pohl, C., Beckmann, S., Martens-Habbena, W., Jürgens, K. (2005): Impact of varying in vitro electron donator/-acceptor conditions on potential chemolithoautotrophic communities from pelagic redoxclines. Appl. Environ. Microbiol. 71: 6664-6672.




Matz, C. , Deines, P., Boenigk, J., Arndt, H., Eberl, L., Kjelleberg, S., Jürgens, K. (2004): Effect of violacein-producing bacteria on survival and feeding of bacterivorous nanoflagellates. Appl. Environ. Microbiol. 70: 1593-1599

Pernthaler, J., Zöllner, E., Warnecke, F., Jürgens, K. (2004): A bloom of filamentous bacteria in a mesotrophic lake: identity and potential controlling mechanism. Appl. Environ. Microbiol. 70: 6272-6281

Sala, M., Jürgens, K. (2004): Bacterial growth on macrophyte leachate in the presence and absence of bacterivorous protists. Arch. Hydrobiol. 161: 371-389




Massana, R., Jürgens, K. (2003): Composition and population dynamics of planktonic bacteria and bacterivorous flagellates in seawater chemostat cultures. Aquat. Microb. Ecol. 32: 11-22

Matz, C., Jürgens, K. (2003): Interaction of nutrient limitation and protozoan grazing determines the phenotypic composition of a bacterial community. Microb. Ecol. 45: 384-398

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

Zöllner, E., Santer, B., Boersma, M., Hoppe, H.-G., Jürgens, K. (2003): Cascading predation effects of Daphnia and copepods on microbial food web components. Freshw. Biol. 48: 2174-2193




Matz, C., Boenigk, J., Arndt, H., Jürgens, K. (2002): Role of bacterial phenotypic traits in selective feeding of the heterotrophic nanoflagellate Spumella sp. Aquat. Microb. Ecol. 27: 137-148.

Boenigk, J., Matz, C., Jürgens, K., Arndt, H. (2002): Food concentration-dependent regulation of food selectivity of interception-feeding bacterivorous nanoflagellates. Aquat. Microb. Ecol. 27: 195-202.

Matz, C., Deines, P, Jürgens, K. (2002): Phenotypic variation in Pseudomonas sp. CM10 determines microcolony formation and survival under protozoan grazing. FEMS Microbiol. Ecol. 39: 57-65.

Jeppesen, E., Søndergaard, Ma., Søndergaard, Mo., Christoffersen, K. Theil-Nielsen, J., Jürgens, K. (2002): Cascading trophic interactions in the littoral zone: an enclosure experiment in shallow Lake Stigsholm, Denmark. Arch. Hydrobiol. 153: 533-555

Jürgens, K., Matz, C. (2002): Predation as a shaping force for the phenotypic and genotypic composition of planktonic bacteria. Antonie van Leeuwenhoek 81: 413-434.

Degans, H., Zöllner, E., v.d. Gucht, K., de Meester, L., Jürgens, K. (2002): Rapid Daphnia-mediated changes in microbial community structure: an experimental study. FEMS Microbiol. Ecol. 42: 137-149.




Langenheder, S., Jürgens, K. (2001): Different effects of metazoan and protozoan predation on planktonic bacteria. Limnol. Oceanogr. 46: 121-134.

Matz, C., Jürgens, K. (2001): The effect of bacterial surface hydrophobicity on feeding rates of heterotrophic nanoflagellates. Appl. Environ. Microbiol. 67: 814

Boenigk, J., Matz, C., Jürgens, K., Arndt, H. (2001): Confusing selective feeding with differential digestion in bacterivorous nanoflagellates. J. Euk. Microbiol. 48: 425-432.

Boenigk, J., Matz, C., Jürgens, K., Arndt, H. (2001): The influence of preculture conditions and food quality on the ingestion and digestion process of three species of heterotrophic nanoflagellates. Microb. Ecol. 42: 168-176.

Zubkov, M. V., Zöllner, E., Jürgens, K. (2001): Digestion of bacterial macromolecules by a mixotrophic flagellate, Ochromonas sp., compared with that by two heterotrophic flagellates, Spumella pudica and Bodo saltans. Europ. J. Protozool. 37: 155-166.




Jürgens, K. Gasol, J.M., Vaqué, D. (2000): Bacteria-flagellate coupling in microcosm experiments in the Central Atlantic Ocean. J. Exp. Mar. Biol. Ecol. 245: 127-147.

Jürgens, K., Jeppesen, E. (2000): The impact of metazooplankton on the structure of the microbial food web in a shallow, hypertrophic lake. J. Plankt. Res. 22: 1047-1070.

Jürgens, K., Šimek, K. (2000): Functional response and particle size selection of Halteria cf. grandinella, a freshwater, oligotrichous ciliate. Aquat. Microb. Ecol. 22: 57-68.

Šimek, K., Jürgens, K., Nedoma, J., Comerma, M., Armengol, J. (2000): Ecological role and bacterial grazing of Halteria spp.: small freshwater oligotrichs as dominant pelagic ciliate bacterivores. Aquat. Microb. Ecol. 22: 43-56.

Jürgens, K., Sala, M. (2000): Predation-mediated shifts in size distribution of microbial biomass and activity during detritus decomposition. Oikos 91:29-40.



Before 2000


Jürgens, K., Skibbe, O., Jeppesen, E. (1999): Impact of metazooplankton on the composition and population dynamics of planktonic ciliates in a shallow, hypertrophic lake. Aquat. Microb. Ecol. 17: 61-75.

Jürgens, K., Pernthaler, J, Schalla, S., Amann, R. (1999): Morphological and compositional changes in a planktonic bacterial community in response to enhanced protozoan grazing. Appl. Environ. Microbiol. 65: 1241-1250.

Jürgens, K., Jeppesen, E. (1998): Cascading effects on microbial food web structure in a dense macrophyte bed. In: Jeppesen et al. (eds.): The Structuring Role od Submerged Macrophytes in Lakes. Ecological Studies 131, Springer Verlag, p. 262-273.

Jürgens, K., Arndt, H., Zimmermann, H. (1997): Impact of metazoan and protozoan grazers on bacterial biomass distribution in microcosm experiments. Aquat. Microb. Ecol. 12: 131-138.

Christoffersen, K., Nybroe, O., Jürgens, K., Hansen, M. (1997): Measurement of bacterivory by heterotrophic nanoflagellates using immunofluorescence labelling of ingested cells. Aquat. Microb. Ecol. 13: 127-134.

Jürgens, K., Wickham, S.A., Rothhaupt, K.O., Santer, B. (1996): Feeding rates of micro- and macrozooplankton on heterotrophic nanoflagellates. Limnol. Oceanogr. 41: 1833-1839.

Gasol, J.M., Jürgens, K., Massana, R., Calderón-Paz, J.I., Pedrós-Alió, C. (1995): Dynamics of a mass development of Daphnia pulex in a sulfide-rich pond (Lake Cisó). Arch. Hydrobiol. 132: 279-296.

Jürgens, K., Stolpe, G. (1995): Seasonal dynamics of crustacean zooplankton, heterotrophic nanoflagellates and bacteria in a shallow, eutrophic lake. Freshw. Biol. 33: 27-38.

Jürgens, K., DeMott, W.R. (1995): Behavioral flexibility in prey selection by bacterivorous nanoflagellates. Limnol. Oceanogr. 40: 1503-1507.

Jürgens, K., Arndt, H., Rothhaupt, K.O. (1994): Zooplankton-mediated changes of bacterial community structure. Microb. Ecol. 27: 27-42.

Jürgens, K., Gasol. J.M., Massana, R., Pedrós-Alió, C. (1994): Control of heterotrophic bacteria and protozoans by Daphnia pulex in the epilimnion of Lake Cisó. Arch. Hydrobiol. 131: 55-78.

Jürgens ,K. (1994): The impact of Daphnia on microbial food webs - a review. Mar. Microb. Food Webs 8: 295-324.

Massana, R., Gasol, J.M., Jürgens, K., Pedrós-Alió, C. (1994): Impact of Daphnia pulex on a metalimnetic microbial community. J. Plankt. Res. 16: 1379-1399.

Jürgens, K., Güde, H. (1994): The potential importance of grazing-resistant bacteria in planktonic food webs. Mar. Ecol. Prog. Ser. 112: 169-188.

Jürgens, K. (1992): Is there plenty of food for bacterivorous flagellates in eutrophic waters ? Arch. Hydrobiol. Beih. Ergebn. Limnol. 37: 195-205.

Jürgens, K., Güde, H. (1991): Seasonal changes in the grazing impact of phagotrophic flagellates on bacteria in Lake Constance. Mar. Microb. Food Webs 5: 27-37.

Güde, H., Jürgens, K., Parth, G., Walser, R. (1991): Indications for low net productivity of pelagic bacterioplankton. Kieler Meeresforsch. Sonderh. 8: 309-316.

Jürgens, K., Güde, H. (1990): Incorporation and release of phosphorus by planktonic bacteria and phagotrophic flagellates. Mar. Ecol. Prog. Ser. 59: 271-284.



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