Per Juel Hansen
Professor
Marine Biology
Strandpromenaden 5
3000 Helsingør
- Published
Dimorphism in cryptophytes - The case of Teleaulax amphioxeia/Plagioselmis prolonga and its ecological implications
Altenburger, A., Blossom, H. E., Garcia-Cuetos, L., Jakobsen, H. H., Carstensen, J., Lundholm, Nina, Hansen, Per Juel, Moestrup, Øjvind & Haraguchi, L., 2020, In: Science Advances. 6, 37, 8 p., eabb1611.Research output: Contribution to journal › Journal article › Research › peer-review
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Limits to the cellular control of sequestered cryptophyte prey in the marine ciliate Mesodinium rubrum: [incl. correction]
Altenburger, A., Cai, H., Li, Q., Drumm, Kirstine, Kim, M., Zhu, Y., Garcia-Cuetos, L., Zhan, X., Hansen, Per Juel, John, U., Li, S. & Lundholm, Nina, 2021, In: The ISME Journal. 15, 4, p. 1056-1072 17 p.Research output: Contribution to journal › Journal article › Research › peer-review
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HPLC-HRMS quantification of the ichthyotoxin karmitoxin from Karlodinium armiger
Andersen, A. J. C., de Medeiros, L. S., Binzer, S. B., Rasmussen, S. A., Hansen, Per Juel, Nielsen, K. F., Jørgensen, K. & Larsen, T. O., Sep 2017, In: Marine Drugs. 15, 9, 13 p., 278.Research output: Contribution to journal › Journal article › Research › peer-review
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Dynamic cluster analysis: an unbiased method for identifying A + 2 element containing compounds in liquid chromatographic high-resolution time-of-flight mass spectrometric data
Andersen, A. J. C., Hansen, Per Juel, Jørgensen, K. & Nielsen, K. F., 2016, In: Analytical Chemistry. 88 , 24, p. 12461–12469 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Sublethal concentrations of ichthyotoxic alga Prymnesium parvum affect rainbow trout susceptibility to viral haemorrhagic septicaemia virus
Andersen, N. G., Lorenzen, E., Boutrup, T. S., Hansen, Per Juel & Lorenzen, N., 2016, In: Diseases of Aquatic Organisms. 117, p. 187-195 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Ichthyotoxicity of the microalga Pseudochattonella farcimen under laboratory and field conditions in Danish waters
Andersen, N. G., Hansen, Per Juel, Engell-Sørensen, K., Nørremark, L. H., Andersen, P., Lorenzen, E. & Lorenzen, N., 2015, In: Diseases of Aquatic Organisms. 116, 3, p. 165-172 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Mixotrophy in chlorophytes and haptophytes: effect of irradiance, macronutrient, micronutrient and vitamin limitation
Anderson, R., Charvet, S. & Hansen, Per Juel, 2018, In: Frontiers in Microbiology. 9, 13 p., 1704.Research output: Contribution to journal › Journal article › Research › peer-review
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Meteorological conditions induce strong shifts in mixotrophic and heterotrophic flagellate bacterivory over small spatio-temporal scales
Anderson, R. & Hansen, Per Juel, 2020, In: Limnology and Oceanography. 65, 6, p. 1189–1199 11 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Mixotrophic phytoflagellate bacterivory field measurements strongly biased by standard approaches: a case study
Anderson, R., Jürgens, K. & Hansen, Per Juel, 26 Jul 2017, In: Frontiers in Microbiology. 8, 12 p., 1398.Research output: Contribution to journal › Journal article › Research › peer-review
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Polyketide synthase genes and molecular trade-offs in the ichthyotoxic species Prymnesium parvum
Anestis, K., Kohli, G. S., Wohlrab, S., Varga, E., Larsen, T. O., Hansen, Per Juel & John, U., 2021, In: Science of the Total Environment. 795, 10 p., 148878.Research output: Contribution to journal › Journal article › Research › peer-review
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Effects of dietary fatty acids on the reproductive success of the calanoid copepod Temora longicornis (vol 146, pg 513, 2005)
Arendt, K., Jonasdottir, S. H., Hansen, Per Juel & Gartner, S., 2006, In: Marine Biology.Research output: Contribution to journal › Journal article › Research › peer-review
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Effects of diatary fatty acids on the reproductive success of the calanoid copepod Temora longicornis
Arendt, K. E., Jónasdóttir, S. H., Hansen, Per Juel & Gartner, S., 2005, In: Marine Biology. 146, 3, p. 513-530Research output: Contribution to journal › Journal article › Research › peer-review
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Marine microalgae attack and feed on metazoans
Berge, T., Poulsen, L. K., Moldrup, M., Daugbjerg, Niels & Hansen, Per Juel, 2012, In: I S M E Journal. 6, p. 1926-1936 11 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Role of the chloroplast in the predatory dinoflagellate Karlodinium armiger
Berge, T. & Hansen, Per Juel, 2016, In: Marine Ecology - Progress Series. 549, p. 41–54 14 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Isolation and cultivation of microalgae select for low growth rate and tolerance to high pH
Berge, T., Daugbjerg, Niels & Hansen, Per Juel, 2012, In: Harmful Algae. 20, p. 101-110 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Prey size spectrum and bioenergetics of the mixotrophic dinoflagellate Karlodinium armiger
Berge, T., Hansen, Per Juel & Moestrup, Øjvind, 26 Mar 2008, In: Aquatic Microbial Ecology. 50, p. 289-299Research output: Contribution to journal › Journal article › Research › peer-review
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Modelling succession of key resource harvesting traits of mixotrophic plankton populations
Berge, T., Chakraborty, S., Hansen, Per Juel & Andersen, K. H., 15 Jan 2017, In: The ISME Journal. 11, p. 212–223 12 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Effects of lowered pH on marine phytoplankton growth rates.
Berge, T., Daugbjerg, Niels, Andersen, B. B. & Hansen, Per Juel, 2010, In: Marine Ecology - Progress Series. 416, p. 79-91 13 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Respiratory Physiology of European Plaice (Pleuronectes platessa) Exposed to Prymnesium parvum
Bergsson, H., Andersen, N. R., Svendsen, M. B. S., Hansen, Per Juel & Steffensen, John Fleng, 2019, In: Fishes. 4, 2, 13 p., 32.Research output: Contribution to journal › Journal article › Research › peer-review
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Multiple ocean stressors: a scientific summary for policy makers
Beusen, A., Boyd, P. W., Breitburg, D., Comeau, S., Hansen, Per Juel, Isensee, K., Kudela, R. M., Lundholm, Nina, Otto, S., Schwing, F. & Tilbrook, B., 2022, Unesco. 22 p. (IOC Information Series, Vol. 1404).Research output: Book/Report › Report › Research › peer-review
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The blue mussel Mytilus edulis is vulnerable to the toxic dinoflagellate Karlodinium armiger: adult filtration is inhibited and several life stages killed
Binzer, S. B., Lundgren, R. B. C., Berge, T., Hansen, Per Juel & Vismann, Bent, Jun 2018, In: P L o S One. 13, 6, 16 p., e0199306.Research output: Contribution to journal › Journal article › Research › peer-review
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Karmitoxin production by Karlodinium armiger and the effects of K. armiger and karmitoxin towards fish
Binzer, S. B., Varga, E., Andersen, A. J. C., Svenssen, D. K., de Medeiros, L. S., Rasmussen, S. A., Larsen, T. O. & Hansen, Per Juel, 2020, In: Harmful Algae. 99, 13 p., 101905.Research output: Contribution to journal › Journal article › Research › peer-review
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A-, B- and C-type prymnesins are clade specific compounds and chemotaxonomic markers in Prymnesium parvum
Binzer, S. B., Svenssen, D. K., Daugbjerg, Niels, Alvez-de-Souza, C., Pinto, E., Hansen, Per Juel, Larsen, T. O. & Varga, E., 2019, In: Harmful Algae. 81, p. 10-17 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Toxic mucus traps: a novel mechanism that mediates prey uptake in the mixotrophic dinoflagellate Alexandrium pseudogonyaulax
Blossom, H. E., Daugbjerg, Niels & Hansen, Per Juel, 2012, In: Harmful Algae. 17, p. 40-53 14 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Stability of the intra- and extracellular toxins of Prymnesium parvum using a microalgal bioassay
Blossom, H. E., Andersen, N. G., Rasmussen, S. A. & Hansen, Per Juel, 2014, In: Harmful Algae. 32, p. 11-21 11 p.Research output: Contribution to journal › Journal article › Research › peer-review
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The loss of mixotrophy in Alexandrium pseudogonyaulax: Implications for trade-offs between toxicity, mucus trap production, and phagotrophy
Blossom, H. E. & Hansen, Per Juel, 2021, In: Limnology and Oceanography. 66, 2, p. 528-542 15 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Prymnesium parvum revisited: relationship between allelopathy, ichthyotoxicity, and chemical profiles in 5 strains
Blossom, H. E., Rasmussen, S. A., Andersen, N. G., Larsen, T. O., Nielsen, K. F. & Hansen, Per Juel, 2014, In: Aquatic Toxicology. 157, p. 159-166 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
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The cost of toxicity in microalgae: direct evidence from the dinoflagellate Alexandrium
Blossom, H. E., Markussen, Bo, Daugbjerg, Niels, Krock, B., Norlin, A. & Hansen, Per Juel, 2019, In: Frontiers in Microbiology. 10, 14 p., 1065.Research output: Contribution to journal › Journal article › Research › peer-review
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A search for mixotrophy and mucus trap production in Alexandrium spp. and the dynamics of mucus trap formation in Alexandrium pseudogonyaulax
Blossom, H. E., Bædkel, T. D., Tillmann, U. & Hansen, Per Juel, 4 Apr 2017, In: Harmful Algae. 64, p. 51-62 12 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Exploring strategies for nanoflagellates living in a 'wet desert'
Boenigk, J., Pfandl, K. & Hansen, Per Juel, 2006, In: Aquatic Microbial Ecology. 44, p. 71-83Research output: Contribution to journal › Journal article › Research › peer-review
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Mixotrophic lifestyle of the ichthyotoxic haptophyte, Prymnesium parvum, offered different sources of phosphorus: [Inkl. Corrigendum]
Boucher, C., Lacour, T., Julie, A., Damien, R., Hansen, Per Juel & Francis, M., 2023, In: Harmful Algae. 127, p. 1-10 10 p., 102483.Research output: Contribution to journal › Journal article › Research › peer-review
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Use of phytoplankton pigments in estimating food selection of three marine copepods
Christensen, B., Jonasdottir, S., Henriksen, P. & Hansen, Per Juel, 2012, In: Journal of Plankton Research. 34, 2, p. 161-172 12 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Gill Transcriptomic Responses to Toxin-producing Alga Prymnesium parvum in Rainbow Trout
Clinton, M., Krol, E., Sepúlveda, D., Andersen, N. R., Brierley, A. S., Ferrier, D. E. K., Hansen, Per Juel, Lorenzen, N. & Martin, S. A. M., 2021, In: Frontiers in Immunology. 12, 17 p., 794593.Research output: Contribution to journal › Journal article › Research › peer-review
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Novel type of eukaryotic endosymbiont in Amphisolenia bidentata identified using ribosomal gene sequence determinations
Daugbjerg, Niels, Jensen, M. H. & Hansen, Per Juel, 2009, In: Phycologia. 4, p. 24-24 1 p.Research output: Contribution to journal › Conference abstract in journal › Research
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Using nuclear-encoded LSU and SSU rDNA sequences to identify the Eukaryotic Endosymbiont in Amphisolenia bidentata (Dinophyceae)
Daugbjerg, Niels, Jensen, M. H. & Hansen, Per Juel, 2013, In: Protist. 164, 3, p. 411-422 12 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Physiological Responses of Mesodinium major to Irradiance, Prey Concentration and Prey Starvation
Drumm, Kirstine, Norlin, A., Kim, M., Altenburger, A. & Hansen, Per Juel, 2021, In: Journal of Eukaryotic Microbiology. 68, 4, 13 p., e12854.Research output: Contribution to journal › Journal article › Research › peer-review
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Effects of irradiance and prey deprivation on growth, cell carbon and photosynthetic activity of the freshwater kleptoplastidic dinoflagellate Nusuttodinium (= Gymnodinium) aeruginosum (Dinophyceae)
Drumm, Kirstine, Liebst-Olsen, M., Daugbjerg, Niels, Moestrup, Øjvind & Hansen, Per Juel, 1 Aug 2017, In: PLoS ONE. 12, 8, 13 p., e0181751.Research output: Contribution to journal › Journal article › Research › peer-review
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Putative N2-fixing heterotrophic bacteria associated with dinoflagellate-Cyanobacteria consortia in the low-nitrogen Indian Ocean
Farnelid, H., Tarangkoon, W., Hansen, Gert, Hansen, Per Juel & Riemann, Lasse, 2010, In: Aquatic Microbial Ecology. 61, 2, p. 105-117 12 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Microbial diversity and activity in a Danish fjord with anoxic deep water
Fenchel, Tom, Bernard, C., Esteban, G., Finlay, B. J., Hansen, Per Juel & Iversen, N., 1995, In: Marine Biology Research. 43(1), p. 45-100Research output: Contribution to journal › Journal article › Research › peer-review
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Motile behaviour of the bloom-forming ciliate Mesodinium rubrum
Fenchel, Tom & Hansen, Per Juel, 2006, In: Marine Biology Research. 2, 1, p. 33-40Research output: Contribution to journal › Journal article › Research › peer-review
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Development and validation of new methods for measuring predation rates in mixoplanktonic protists
Ferreira, G. D., Calbet, A., Mansour, J. S., Not, F., Medic, Nikola, Hansen, Per Juel, Romano, F., Pitta, P., Flynn, K. J. & Mitra, A., 2021, Novel Approaches For Investigating Marine Planktonic Mixotrophy. Mitra, A., Flynn, K. J., Anestis, K., Mansour, J. S., Ferreira, G. D. & Calbet, A. (eds.). Zenodo, 69 p.Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review
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Mixoplankton interferences in dilution grazing experiments
Ferreira, G. D., Romano, F., Medic, Nikola, Pitta, P., Hansen, Per Juel, Flynn, K. J., Mitra, A. & Calbet, A., 2021, In: Scientific Reports. 11, 16 p., 23849.Research output: Contribution to journal › Journal article › Research › peer-review
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The strengths and weaknesses of Live Fluorescently Labelled Algae (LFLA) to estimate herbivory in protozooplankton and mixoplankton
Ferreira, G. D., Figueira, J., Marques, S. C., Hansen, Per Juel & Calbet, A., 2022, In: Marine Environmental Research. 174, 12 p., 105558.Research output: Contribution to journal › Journal article › Research › peer-review
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Mixotrophic protists and a new paradigm for marine ecology: where does plankton research go now?
Flynn, K. J., Mitra, A., Anestis, K., Anschütz, A. A., Calbet, A., Ferreira, G. D., Gypens, N., Hansen, P. J., John, U., Martin, J. L., Mansour, J. S., Maselli, M., Medic, N., Norlin, A., Not, F., Pitta, P., Ramano, F., Saiz, E., Schneider, L. K., Stolte, W. & 1 others, , 2019, In: Journal of Plankton Research. 41, 4, p. 375-391 17 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Misuse of the phytoplankton-zooplankton dichotomy: the need to assign organisms as mixotrophs within plankton functional types
Flynn, K. J., Stoecker, D. K., Mitra, A., Raven, J. A., Glibert, P. M., Hansen, Per Juel, Granéli, E. & Burkholder, J. M., 2013, In: Journal of Plankton Research. 35, 1, p. 3-11 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Cutting the canopy to defeat the “selfish gene”; conflicting selection pressures for the integration of phototrophy in mixotrophic protists
Flynn, K. J. & Hansen, Per Juel, 2013, In: Protist. 164, 6, p. 811-823 13 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Ocean acidification with (de)eutrophication will alter future phytoplankton growth and succession
Flynn, K. J., Darren, C. R., Mitra, A., Heiner, F., Hansen, Per Juel, Glibert, P., Wheeler, G. L., Stoecker, D. K., Blackford, J. C. & Brownlee, C., 2015, In: Proceedings of the Royal Society B: Biological Sciences. 282, 1804, 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
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The chloroplast of the DSP-producer Dinophysis, does it originate from Mesodinium, Teleaulax or elsewhere?
Garcia, L., Hansen, Per Juel, Daugbjerg, Niels & Moestrup, Øjvind, 2008. 1 p.Research output: Contribution to conference › Conference abstract for conference › Research
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Studies on the genus Mesodinium II. ultrastructural and molecular investigations of five marine species help clarifying the taxonomy
Garcia, L., Moestrup, Øjvind & Hansen, Per Juel, 2012, In: Journal of Eukaryotic Microbiology. 59, 4, p. 374-400 27 p.Research output: Contribution to journal › Journal article › Research › peer-review
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The toxic dinoflagellate Dinophysis acuminata harbors permanent chloroplasts of cryptomomad prigin, not kleptochloroplasts
Garcia, L., Moestrup, Øjvind, Hansen, Per Juel & Daugbjerg, Niels, 2010, In: Harmful Algae. 9, 1, p. 25-38 14 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Allelopathy in Harmful Algae: A Mechanism to Compete for Resources?
Granéli, E. & Hansen, Per Juel, 2006, Ecology of Harmful Algae: Series: Ecological Studies Vol. 189.. 189 ed. Heidelberg: Springer, p. 189-202 (Ecological Studies, Vol. 189).Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
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FISH-KILLING MARINE ALGAL BLOOMS: Causative Organisms, Ichthyotoxic Mechanisms, Impacts and Mitigation
Hallegraeff, G., Anderson, D. M., Davidson, K., Gianella , F., Hansen, Per Juel, Iwataki, M., Larsen, T. O., Hegaret, H., Mardones, J. I., MacKenzie, L. & Rensel, J. E., 2023, Unesco. 96 p.Research output: Book/Report › Report › Research
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Effects of large nongrazable particles on clearance and swimming behaviour of zooplankton
Hansen, B., Hansen, Per Juel & Nielsen, T. G., 1991, In: Journal of Experimental Marine Biology and Ecology. 152(2), p. 145-288Research output: Contribution to journal › Journal article › Research › peer-review
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The size ratio between planktonic predators and their prey
Hansen, B., Bjørnsen, P. K. & Hansen, Per Juel, 1994, In: Limnology and Oceanography. 39 (2), p. 395-403Research output: Contribution to journal › Journal article › Research › peer-review
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In situ and experimental evidence for effects of elevated pH on protistan and metazoan grazers
Hansen, B. W., Andersen, C. M. B., Hansen, Per Juel, Nielsen, T. G., Vismann, Bent & Tiselius, P., 2019, In: Journal of Plankton Research. 41, 3, p. 257–271 15 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Effects of elevated pH on marine copepods in mass cultivation systems: practical implications
Hansen, B. W., Hansen, Per Juel, Nielsen, T. G. & Meyer Jepsen, P., 2017, In: Journal of Plankton Research. 39 , 6, p. 984–993 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Meeting report: Third European Congress of Protistology and 9th European Congress on Ciliate Biology, Helsingor, Denmark, July 26-30, 1999
Hansen, Per Juel & Leick, V., 1 Jan 1999, In: Protist. 150, 3, p. 225-228 4 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Physiology of the mixotrophic dinoflagellate Fragilidium subglobosum. II. Effects of time scale and prey concentration on photosynthetic performance
Hansen, Per Juel, Skovgaard, A., Glud, R. N. & Stoecker, D. K., 9 Aug 2000, In: Marine Ecology Progress Series. 201, p. 137-146 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Growth and grazing responses of Chrysochromulina ericina (Prymnesiophyceae): the role of irradiance, prey concentration and pH
Hansen, Per Juel & Hjorth, M., 2002, In: Marine Biology. 141, p. 975-983Research output: Contribution to journal › Journal article › Research › peer-review
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DINOPHYSIS - a planktonic dinoflagellate genus which can act both as a prey and a predator of a ciliate
Hansen, Per Juel, 1991, In: Marine Ecology - Progress Series. 69 (1&2), p. 201-204Research output: Contribution to journal › Journal article › Research › peer-review
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Prey. size selection, feeding rates and growth dynamics of heterotrophic dinoflagellates with special emphasis on Gyrodinium spirale
Hansen, Per Juel, 1992, In: Marine Biology. 114, p. 327-334Research output: Contribution to journal › Journal article › Research › peer-review
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Opblomstring af stilkalger i Storebælt
Hansen, Per Juel, Nielsen, T. G. & Kaas, H., 1994, In: Vand og Jord. 1. årg., nr. 2, p. 8-13Research output: Contribution to journal › Journal article › Research
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Green Noctiluca scintillans: a dinoflagellate with its own greenhouse.
Hansen, Per Juel, Miranda, L. & Azanza, R., 2004, In: Marine Ecology - Progress Series. 275, p. 79-87Research output: Contribution to journal › Journal article › Research › peer-review
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Book Reviews: Coastal Plankton - Photoguide for European Seas by Otto Larink & Wilfried Westheide
Hansen, Per Juel, 2006, In: Marine Biology Research. 2, 1, p. 76Research output: Contribution to journal › Literature review › Research
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Mixotrophy among freshwater and marine protists
Hansen, Per Juel, Anderson, R., Stoecker, D. K., Decele, J., Altenburger, A., Blossom, H. E., Drumm, Kirstine, Mitra, A. & Flynn, K. J., 2019, Encyclopedia of Microbiology. Schmidt, T. (ed.). 4 ed. Academic Press, p. 199-210Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review
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The bloom-forming ciliate Mesodinium rubrum harbours a single permanent endosymbiont
Hansen, Per Juel & Fenchel, Tom, 2006, In: Marine Biology Research. 2, 3, p. 169-177Research output: Contribution to journal › Journal article › Research › peer-review
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The red tide dinoflagellate Alexandrium tamarense: effects on behaviour and growth of a tintinnid ciliate
Hansen, Per Juel, 1989, In: Marine Ecology - Progress Series. 53, p. 105-116Research output: Contribution to journal › Journal article › Research › peer-review
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Phagotropic Mechanisms and Prey Selection in Mixotropic Phytoflagellates
Hansen, Per Juel, 1998, In: NATO ASI Series. G 41, p. 527-537Research output: Contribution to journal › Journal article › Research › peer-review
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Meeting Report: Third European Congress of Protistology and 9th European Congress on Ciliate Biology, Helsingør, Denmark, July 26-30
Hansen, Per Juel, 1999, In: Protist. 150, p. 225-228Research output: Contribution to journal › Journal article › Research
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Effect of high pH on the growth and survival of marine phytoplankton: implications for species succession
Hansen, Per Juel, 2002, In: Aquatic Microbial Ecology. 28, p. 279-288Research output: Contribution to journal › Journal article › Research › peer-review
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Interactions among marine protists: importance of mixotrophy, pH and toxins
Hansen, Per Juel, 2007, In: Journal of Phycology. supl 1, p. 13-14 2 p.Research output: Contribution to journal › Conference abstract in journal › Research
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Quantitative importance and trophic role of heterotrophic dinoflagellates in a coastal pelagial food web
Hansen, Per Juel, 1991, In: Marine Ecology - Progress Series. 73, p. 253-61Research output: Contribution to journal › Journal article › Research › peer-review
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Growth limitation in marine red-tide dinoflagellates: effects of pH versus inorganic carbon availability
Hansen, Per Juel, Lundholm, Nina & Rost, B., 2007, In: Marine Ecology - Progress Series. 334, p. 63-71Research output: Contribution to journal › Journal article › Research › peer-review
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Giftige alger og algeblomstringer i danske farvande
Hansen, Per Juel, 1995, In: Naturligvis. 1995, p. 22-24Research output: Contribution to journal › Journal article › Research
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Interactions Between Toxic Marine Phytoplankton and Metazoan and Protistan Grazers
Hansen, Per Juel, Tester, P. A. & Turner, J. T., 1998, In: NATO SGI. Ser. G 41, p. 453-473Research output: Contribution to journal › Journal article › Research › peer-review
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Zooplankton grazing and growth: Scaling within the 2-2,000-μm body size range
Hansen, Per Juel, Bjørnsen, P. K. & Hansen, B. W., 1 Jan 1997, In: Limnology and Oceanography. 42, 4, p. 687-704 18 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Mixotrophy in Dinoflagellates: Prey Selection, Physiology and Ecological Importance
Hansen, Per Juel & Tillmann, U., 2020, Dinoflagellates: Classification, Evolution, Physiology and Ecological Significance. Durvasula, S. R. V. (ed.). Nova Science Publishers, p. 201-260 60 p.Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review
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Direct evidence for symbiont sequestration in the marine red tide ciliate Mesodinium rubrum
Hansen, Per Juel, Moldrup, M., Tarangkoon, W., Garcia, L. & Moestrup, Øjvind, 2012, In: Aquatic Microbial Ecology. 66, 1, p. 63-75 13 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Mixotrophic feeding of Fragilidium subglobosum (Dinophyceae) on three species of Ceratium: Effects of prey concentration, prey species and light intensity
Hansen, Per Juel & Nielsen, T. G., 1997, In: Marine Ecology - Progress Series. 147, p. 187-196Research output: Contribution to journal › Journal article › Research › peer-review
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The marine dinoflagellate Alexandrium ostenfeldii: paralytic shellfish toxin concentration, composition, and toxicity to a tintinnid ciliate
Hansen, Per Juel, Cembella, A. D. & Moestrup, Øjvind, 1992, In: Journal of Phycology. 28, p. 597-603Research output: Contribution to journal › Journal article › Research › peer-review
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Photoregulation in a kleptochloroplastidic Dinoflagellate, Dinophysis acuta
Hansen, Per Juel, Ojamäe, K., Berge, T., Trampe, Erik, Nielsen, L. T., Lipps, I. & Kühl, Michael, 2016, In: Frontiers in Microbiology. 7, 11 p., 785.Research output: Contribution to journal › Journal article › Research › peer-review
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Acquired phototrophy in Mesodinium and Dinophysis – a review of cellular organization, prey selectivity, nutrient uptake and bioenergetics
Hansen, Per Juel, Nielsen, L. T., Johnson, M., Berge, T. & Flynn, K. J., 2013, In: Harmful Algae. 28, p. 126-139 14 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Distribution and growth of protists and mesozooplankton during a bloom of Chrysochromulina spp. (Prymnesiophyceae, Prymnesiales)
Hansen, Per Juel, Nielsen, T. G. & Kaas, H., 1995, In: Phycologia. 34 (5), p. 409-416Research output: Contribution to journal › Journal article › Research › peer-review
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Zooplanktion grazing and growth: Scaling within the 2-2,000-um body size range
Hansen, Per Juel, Bjørnsen, P. K. & Hansen, B. W., 1997, In: Limnology and Oceanography. 42 (4), p. 687-704Research output: Contribution to journal › Journal article › Research › peer-review
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Phagotrophic Mechanisms and Prey Selection in Free-living Dinoflagellates
Hansen, Per Juel & Calado, A. J., 1999, In: Journal of Eukaryotic Microbiology. 46(4), p. 328-389Research output: Contribution to journal › Journal article › Research › peer-review
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The role of photosynthesis and food uptake for the growth of marine mixotrophic dinoflagellates
Hansen, Per Juel, 2011, In: Journal of Eukaryotic Microbiology. 58, 3, p. 203-214 12 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Growth and grazing response of a ciliate feeding on the red tide dinoflagellate Gyrodinium aureolum in monoculture and in mixture with a non-toxic alga
Hansen, Per Juel, 1995, In: Marine Ecology - Progress Series. 121, p. 65-72Research output: Contribution to journal › Journal article › Research › peer-review
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Physiology of the mixotrophic dinoflagellate Fragilidium subglosum. II. Effects of time scale and prey concentration on photosynthetic performance
Hansen, Per Juel, Skovgaard, A., Glud, R. N. & Stoecker, D. K., 2000, In: Marine Ecology - Progress Series. 201, p. 137-146Research output: Contribution to journal › Journal article › Research › peer-review
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Effect of turbulence on sedimentation and net population growth of the dinoflagellate Ceratium tripos and interactions with its predator, Fragilidium subglobosum
Havskum, H., Hansen, Per Juel & Berdalet, E., 1 Jan 2005, In: Limnology and Oceanography. 50, 5, p. 1543-1551 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Effect of turbulence on sedimentation and net population growth of the dinoflagellate Ceratium tripos and interactions with its predator, Fragilidium subglosum
Havskum, H., Hansen, Per Juel & Berdalet, E., 2005, In: Limnology and Oceanography. 50(5), p. 1543-1551Research output: Contribution to journal › Journal article › Research › peer-review
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Net growth of the bloom-forming dinoflagellate Heterocapsa triquetra and pH: why turbulence matters.
Havskum, H. & Hansen, Per Juel, 2006, In: Aquatic Microbial Ecology. 42, p. 55-62Research output: Contribution to journal › Journal article › Research › peer-review
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Metabolic Reliance on Photosynthesis Depends on Both Irradiance and Prey Availability in the Mixotrophic Ciliate, Strombidium cf. basimorphum
Hughes, E. A., Maselli, Maira, Sørensen, Helle & Hansen, Per Juel, 2021, In: Frontiers in Microbiology. 12, 12 p., 642600.Research output: Contribution to journal › Journal article › Research › peer-review
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Prey size selection, grazing and growth response of the small heterotrophic dinoflagellate Gymnodinium sp. and the ciliate Balanion comatum - a comparatiteve study
Jakobsen, H. H. & Hansen, Per Juel, 1997, In: Marine Ecology - Progress Series. 158, p. 75-86Research output: Contribution to journal › Journal article › Research › peer-review
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Prey size selection, grazing and growth response of the small heterotrophic dinoflagellate Gymnodinium sp. and the ciliate Balanion comatum - a comparative study
Jakobsen, H. H. & Hansen, Per Juel, 1997, In: Marine Ecology Progress Series. 158, 1, p. 75-86 12 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Growth and grazing responses of two chloroplast-retaining dinoflagellates:effect of irradiance and prey species
Jakobsen, H. H., Hansen, Per Juel & Larsen, Jacob, 2000, In: Marine Ecology - Progress Series. 201, p. 121-128Research output: Contribution to journal › Journal article › Research › peer-review
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The fish-killing dictyochophyte Pseudochattonella farcimen
Jakobsen, R. K., Hansen, Per Juel, Daugbjerg, Niels & Andersen, N. G., 2012, In: Harmful Algae. 18, p. 84-95 12 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Long-read genome sequencing provides novel insights into the harmful algal bloom species Prymnesium parvum
Jian, J., Wu, Z., Silva-núñez, A., Li, X., Zheng, X., Luo, B., Liu, Y., Fang, X., Workman, C. T., Larsen, T. O., Hansen, Per Juel & Sonnenschein, E. C., 2024, In: Science of the Total Environment. 908, 168042.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Mesodinium rubrum: the symbiosis that wasn’t
Johnson, M. D., Lasek-Nesselquist , E., Moeller, H. V., Altenburger, A., Lundholm, Nina, Kim, M., Drumm, Kirstine, Moestrup, Øjvind & Hansen, Per Juel, 14 Feb 2017, In: Proceedings of the National Academy of Sciences of the United States of America. 114, 7, p. E1040-E1042 3 p.Research output: Contribution to journal › Comment/debate › Research › peer-review
- Published
Fjords and climate change
Juul-Pedersen, T., Winding, M. H. S., Sejr, M. K. & Hansen, Per Juel, 2021, Greenland Ecosystem Monitoring Annual Report Cards 2020. Christensen, T. B., Arndal, M. F. & Topp-Jørgensen, E. (eds.). Aarhus University, DCE – Danish Centre for Environment and Energy, p. 8-9 2 p.Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
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Dynamics of sequestered cryptophyte nuclei in Mesodinium rubrum during starvation and refeeding
Kim, M., Drumm, Kirstine, Daugbjerg, Niels & Hansen, Per Juel, 21 Mar 2017, In: Frontiers in Microbiology. 8, 14 p., 423.Research output: Contribution to journal › Journal article › Research › peer-review
ID: 10120
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The role of mixotrophic protists in the biological carbon pump
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Resilience to temperature and pH changes in a future climate change scenario in six strains of the polar diatom Fragilariopsis cylindrus
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Functional ecology of aquatic phagotrophic protists–concepts, limitations, and perspectives
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