Per Juel Hansen
Professor
Marine Biology
Strandpromenaden 5
3000 Helsingør
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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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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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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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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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Trophic cascades of bottom-up and top-down forcing on nutrients and plankton in the Kattegat, evaluated by modelling
Petersen, M. E., Maar, M., Larsen, J., Møller, E. F. & Hansen, Per Juel, May 2017, In: Journal of Marine Systems. 169, p. 25-39 15 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Toxin-mediated feeding in the harmful alga Prymnesium parvum
Skovgaard, A. & Hansen, Per Juel, 2002.Research output: Contribution to conference › Conference abstract for conference › Research
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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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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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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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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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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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The role of mixotrophic protists in the biological carbon pump
Mitra, A., Flynn, K. J., Burkholder, J. M., Berge, T., Calbet, A., Raven, J. A., Graneli, E., Glibert, P. M., Hansen, Per Juel, Stoecker, D. K., Thingstad, F., Tillmann, U., Våge, S. & Zubkov, M. V., 2014, In: Biogeosciences. 11, p. 995-1005 11 p.Research 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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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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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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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
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The dinoflagellates Pfiesteria shumwayae and Luciella masanensis cause fish kills in recirculation fish farms in Denmark
Moestrup, Øjvind, Hansen, Gert, Daugbjerg, Niels, Lundholm, Nina, Overton, J., Vestergård, M., Steenfeldt, S. J., Calado, A. J. & Hansen, Per Juel, 2014, In: Harmful Algae. 32, p. 33-39 7 p.Research output: Contribution to journal › Journal article › Research › peer-review
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The coupling between irradiance, growth, photosynthesis and prymnesin cell quota and production in two strains of the bloom-forming haptophyte, Prymnesium parvum
Medic, Nikola, Varga, E., van der Waal, D. B., Larsen, T. O. & Hansen, Per Juel, 2022, In: Harmful Algae. 112, 8 p., 102173.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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The combined effect of pH and dissolved inorganic carbon concentrations on the physiology of plastidic ciliate Mesodinium rubrum and its cryptophyte prey
Yde Eriksen, C. S., Desmaret Walli, M., Van de Waal, D. B., Helmsing, N. R., Dahl, E. O., Sørensen, Helle & Hansen, Per Juel, 2023, In: Harmful Algae. 129, 11 p., 102509.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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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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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 Mixoplankton Database (MDB): Diversity of photo‐phago‐trophic plankton in form, function, and distribution across the global ocean
Mitra, A., Caron, D. A., Faure, E., Flynn, K. J., Leles, S. G., Hansen, Per Juel, McManus, G. B., Not, F., Rosario Gomes, H. D., Santoferrara, L. F., Stoecker, D. K. & Tillmann, U., 2023, In: Journal of Eukaryotic Microbiology. 70, 4, 25 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Tang
Larsen, J. G. & Hansen, Per Juel, 2020, Natur og Museum. Hansen, M. DD. & Bøgh, L. (eds.). 3 ed. Aarhus: Naturhistorisk Museum, Vol. 59. 39 p. (Natur og Museum).Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Communication
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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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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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Studies on the genus Mesodinium I: ultrastructure and description of Mesodinium chamaeleon n.sp., a benthic marine species with green and red chloroplasts
Moestrup, Øjvind, Garcia-Cuetos, L., Hansen, Per Juel & Fenchel, Tom, 2012, In: Journal of Eukaryotic Microbiology. 59, 1, p. 20-39 20 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Struktur og funktion af plankton fødekæden i det Indiske Ocean fra Cape Town til Broome iAustralien. Dansk Ekspeditionsfond 2008
Nielsen, T. G., Visser, A., Jonasdottir, S., Friis Møller, E., Andersen, M., Larsen, L., Søborg, B., Satapoomin, S., Jaspers, C., Markager, S., Middelboe, M., Martinsen, W., Berendt, A., Hansen, O. S., Hansen, P. J., Woraporn, T., Daugbjerg, N., Hansen, G., Hastrup Jensen, M., Jakobsen, H. H. & 4 others, , 2008.Research output: Contribution to conference › Paper › 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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Spatial distribution of symbiont-bearing dinoflagellates in the Indian Ocean in relation to oceanographic regimes
Tarangkoon, W., Hansen, Gert & Hansen, Per Juel, 2010, In: Aquatic Microbial Ecology. 58, 2, p. 197-213 7 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Sampling bias misrepresents the biogeographical significance of constitutive mixotrophs across global oceans
Leles, S., Mitra, A., Flynn, K. J., Tillmann, U., Stoecker, D., Jeong, H. J., Burkholder, J., Hansen, Per Juel, Caron, D. A., Glibert, P. M., Hallegraeff, G., Raven, J. A., Sanders, R. W. & Zubkov, M., 2019, In: Global Ecology and Biogeography. 28, 4, p. 418–428 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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Role of food uptake for photosynthesis, growth and survival of the mixotrophic dinoflagellate Dinophysis acuminata
Riisgaard, K. & Hansen, Per Juel, 17 Apr 2009, In: Marine Ecology - Progress Series. 381, p. 51-62 12 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Retention of Prey Genetic Material by the Kleptoplastidic Ciliate Strombidium cf. basimorphum
Maselli, Maira, Anestis, K., Klemm, K., Hansen, Per Juel & John, U., 2021, In: Frontiers in Microbiology. 12, 8 p., 694508.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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Resilience to temperature and pH changes in a future climate change scenario in six strains of the polar diatom Fragilariopsis cylindrus
Pančić, M., Hansen, Per Juel, Tammilehto, A. & Lundholm, Nina, 2015, In: Biogeosciences. 12, p. 4235-4244 10 p., 12.Research output: Contribution to journal › Journal article › Research › peer-review
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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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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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Production and excretion of okadaic acid, pectenotoxin-2 and a novel dinophysistoxin from the DSP-causing marine dinoflagellate Dinophysis acuta – effects of light, food availability and growth phase
Nielsen, L. T., Krock, B. & Hansen, Per Juel, 2013, In: Harmful Algae. 23, p. 34-45 12 p.Research 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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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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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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Prey selection, ingestion and growth responses of the common marine ciliate Mesodinium pulex in the light and in the dark
Tarangkoon, W. & Hansen, Per Juel, 2011, In: Aquatic Microbial Ecology. 62, 1, p. 25-38 14 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Predator Field and Colony Morphology Determine the Defensive Benefit of Colony Formation in Marine Phytoplankton
Ryderheim, F., Hansen, Per Juel & Kiørboe, T., 2022, In: Frontiers in Marine Science. 9, 10 p., 829419.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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Plant are not animals and animals are not plants, right? Wrong! Tiny creatures in the ocean can be both at once
Glibert, P. M., Mitra, A., Flynn, K. J., Hansen, Per Juel, Jeong, H. J. & Stoecker, D., 2019, In: Frontiers for Young Minds. 7, 9 p., 48.Research output: Contribution to journal › Comment/debate › Communication
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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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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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Physiology of the mixotrophic dinoflagellate Fragilidium subglobosum. I. Effects of phagotrophy and irradiance on photosynthesis and carbon content
Skovgaard, A., Hansen, Per Juel & Stoecker, D. K., 2000, In: Marine Ecology - Progress Series. 201, p. 129-136Research 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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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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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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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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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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On the occurrence of the potentially toxic dinoflagellates Alexandrium tamarense (=Gonyaulax excavata) and Alexandrium ostenfeldii in Danish and Faroese waters
Moestrup, Ø. & Hansen, Per Juel, 1988, In: Marine Biology Research. 28, p. 195-213Research output: Contribution to journal › Journal article › Research › peer-review
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Oceanic protists with different forms of acquired phototrophy display contrasting biogeographies and abundance
Leles, S., Mitra, A., Flynn, K. J., Stoecker, D. K., Hansen, Per Juel, Calbet, A., McManus, G. B., Sanders, R. W., Caron, D. A., Not, F., Hallegraeff, G. M., Pitta, P., Raven, J. A., Johnson, M. D., Glibert, P. M. & Våge, S., 16 Aug 2017, In: Proceedings of the Royal Society B: Biological Sciences. 284, 1860, 6 p., 20170664.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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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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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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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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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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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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Mixotrophy in the marine plankton
Stoecker, D. K., Hansen, Per Juel, Caron, D. & Mitra, A., Jan 2017, In: Annual Review of Marine Science. 9, p. 311–335 25 p.Research output: Contribution to journal › Review › 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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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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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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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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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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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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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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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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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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Microplastic pollution associated with reduced respiration in seagrass (Zostera marina L.) and associated epiphytes
Molin, J. M., Groth-Andersen, W. E., Hansen, Per Juel, Kühl, Michael & Brodersen, Kasper Elgetti, 2023, In: Frontiers in Marine Science. 10, 14 p., 1216299.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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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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Metabolic and physiological changes in Prymnesium parvum when grown under, and grazing on prey of, variable nitrogen: phosphorus stoichiometry
Lundgren, V. M., Glibert, P. M., Graneli, E., Vidyarathna, N. K., Fiori, E., Ou, L., Flynn, K. J., Mitra, A., Stoecker, D. K. & Hansen, Per Juel, 2016, In: Harmful Algae. 55, p. 1-12 12 p.Research 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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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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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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Mass entrapment and lysis of Mesodinium rubrum cells in mucus threads observed in cultures with Dinophysis
Ojamäe, K., Hansen, Per Juel & Lips, I., 2016, In: Harmful Algae. 55, p. 77-84 8 p.Research 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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Marine Plankton: A Practical Guide to Ecology, Methodology, and Taxonomy. Edited by Claudia Castellani and Martin Edwards. Oxford and New York: Oxford University Press
Hansen, Per Juel, 2020, In: The Quarterly Review of Biology. 95, 1, p. 76-77 1 p.Research output: Contribution to journal › Literature review › Communication
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Loss of phototaxis and degeneration of an eyespot in long-term algal cultures: evidence from ultrastructure and behaviour in the dinoflagellate Kryptoperidinium foliaceum
Moldrup, M., Moestrup, Øjvind & Hansen, Per Juel, 2013, In: Journal of Eukaryotic Microbiology. 60, 4, p. 327–334 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
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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
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Local adaptation through countergradient selection in northern populations of Skeletonema marinoi
Sefbom, J., Kremp, A., Hansen, Per Juel, Johannesson, K., Godhe, A. & Rengefors, K., 2023, In: Evolutionary Applications. 16, 2, 10 p.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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Lack of allelopathic effects of the domoic acid-producing marine diatom Pseudo-nitzschia multiseries
Lundholm, Nina, Hansen, Per Juel & Kotaki, Y., 2005, In: Marine Ecology - Progress Series. 288, p. 21-33Research 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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Karmitoxin: an amine containing polyhydroxy-polyene toxin from the marine dinoflagellate Karlodinium armiger
Rasmussen, S. A., Binzer, S. B., Hoeck, C., Meier, S., Soman de Medeiros, L., Andersen, N. G., Place, A., Nielsen, K. F., Hansen, Per Juel & Larsen, T. O., 5 Apr 2017, In: Journal of Natural Products. 80, 5, p. 1287−1293 7 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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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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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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Interaction between Mesodinium rubrum and its prey: importance of prey concentration, irradiance and pH
Moldrup, M. & Hansen, Per Juel, 2007, In: Marine Ecology - Progress Series. 338, p. 61-70 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Inorganic carbon acquisition in red tide dinoflagellates
Rost, B., Richter, K., Riebesell, U. & Hansen, Per Juel, 2006, In: Plant, Cell and Environment. 29, p. 810-822Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Inorganic carbon acquisition in potentially toxic and non-toxic diatoms: the effect of pH-induced changes in the seawater carbonate chemistry.
Trimborn, S., Lundholm, Nina, Thoms, S., Richter, K., Hansen, Per Juel, Krock, B. & Rost, B., 2008, In: Physiologia Plantarum : An International Journal for Plant Biology. 133, 1, p. 92-105 14 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Impacts of inorganic nutrients on the physiology of a mixoplanktonic ciliate and its cryptophyte prey
Maselli, Maira, Van de Waal, D. B. & Hansen, Per Juel, 2022, In: Oecologia. 199, 1, p. 41-52 12 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Impact of salinity and temperature on the vital rates of co-occurring Calanus glacialis and C. finmarchicus from West Greenland
Makri, M., Hansen, Per Juel & Gissel Nielsen, T., 2024, In: Marine Ecology - Progress Series. 729, p. 47-62 16 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Impact of elevated pH on succession in the Arctic spring bloom
Riisgaard, K., Nielsen, T. G. & Hansen, Per Juel, 2015, In: Marine Ecology - Progress Series. 530, p. 63-75 13 p.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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