Per Juel Hansen

Research output

Research output per year 1988 2006 2007 2012 2016 2017 2019 2020

• 134 Journal article
• 6 Book chapter
• 4 Conference abstract in journal
• 3 Comment/debate
• 9 More
  • 2 Report
  • 2 Conference abstract for conference
  • 2 Review
  • 1 Report chapter
  • 1 Paper
  • 1 Literature review

Research output per year

Research output per year

Search results

• 2006

  Det farveløse plankton - protozoer og dyreplankton

  Hansen, P. J., 2006, Naturen i Danmark: HAVET. Fenchel, T. (ed.). Gyldendal, p. 93-125

  Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Communication

• Det grønne plankton - planktonalgerne

  Hansen, P. J., 2006, Naturen i Danmark: HAVET. Fenchel, T. (ed.). Gyldendal, p. 71-91

  Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Communication

• Erratum: Effects of dietary fatty acids on the reproductive success of the calanoid copepod Temora longicornis (Marine Biology (2005) 146 (513-530) DOI: 10.1007/s00227-004-1457-9)

  Arendt, K. E., Jónasdóttir, S. H., Hansen, P. J. & Gärtner, S., 1 Apr 2006, In: Marine Biology. 148, 6, 1 p.

  Research output: Contribution to journal › Comment/debate › Research › peer-review

• Exploring strategies for nanoflagellates living in a 'wet desert'

  Boenigk, J., Pfandl, K. & Hansen, P. J., 2006, In: Aquatic Microbial Ecology. 44, p. 71-83

  Research output: Contribution to journal › Journal article › Research › peer-review

  22 Citations (Scopus)

• High pH and not allelopathy may be responsible for negative effects of Nodularia spumigena on other algae

  Møgelhøj, M. K., Hansen, P. J., Henriksen, P. & Lundholm, N., 2006, In: Aquatic Microbial Ecology. 43, p. 43-54

  Research output: Contribution to journal › Journal article › Research › peer-review

• High pH and not allelopathy may be responsible for negative effects of Nodularia spumigena on other algae

  Møgelhøj, M. K., Hansen, P. J., Henriksen, P. & Lundholm, N., 3 May 2006, In: Aquatic Microbial Ecology. 43, 1, p. 43-54 12 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Nodularia spumigena 100%
  • allelopathy 92%
  • nodularin 71%
  • salina 58%
  • alga 50%
  31 Citations (Scopus)

• Inorganic carbon acquisition in red tide dinoflagellates

  Rost, B., Richter, K-U., Riebesell, U. & Hansen, P. J., 2006, In: Plant, Cell and Environment. 29, p. 810-822

  Research output: Contribution to journal › Journal article › Research › peer-review

  97 Citations (Scopus)

• Motile behaviour of the bloom-forming ciliate Mesodinium rubrum

  Fenchel, T. & Hansen, P. J., 2006, In: Marine Biology Research. 2, 1, p. 33-40

  Research output: Contribution to journal › Journal article › Research › peer-review

  45 Citations (Scopus)

• Net growth of the bloom-forming dinoflagellate Heterocapsa triquetra and pH: why turbulence matters.

  Havskum, H. & Hansen, P. J., 2006, In: Aquatic Microbial Ecology. 42, p. 55-62

  Research output: Contribution to journal › Journal article › Research › peer-review

  18 Citations (Scopus)

• The bloom-forming ciliate Mesodinium rubrum harbours a single permanent endosymbiont

  Hansen, P. J. & Fenchel, T., 2006, In: Marine Biology Research. 2, 3, p. 169-177

  Research output: Contribution to journal › Journal article › Research › peer-review

  85 Citations (Scopus)
• 2005

  Effect of turbulence on sedimentation and net population growth of the dinoflagellate Ceratium tripos and interactions with its predator, Fragilidium subglobosum

  Havskum, H., Hansen, P. J. & 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

  • Ceratium 100%
  • dinoflagellate 65%
  • Miozoa 64%
  • population growth 57%
  • predator 53%
  20 Citations (Scopus)

• Effect of turbulence on sedimentation and net population growth of the dinoflagellate Ceratium tripos and interactions with its predator, Fragilidium subglosum

  Havskum, H., Hansen, P. J. & Berdalet, E., 2005, In: Limnology and Oceanography. 50(5), p. 1543-1551

  Research output: Contribution to journal › Journal article › Research › peer-review

• Effects of diatary fatty acids on the reproductive success of the calanoid copepod Temora longicornis

  Arendt, K. E., Jónasdóttir, S. H., Hansen, P. J. & Gärtner, S., 2005, In: Marine Biology. 146, p. 513-530

  Research output: Contribution to journal › Journal article › Research › peer-review

  115 Citations (Scopus)

• Lack of allelopathic effects of the domoic acid-producing marine diatom Pseudo-nitzschia multiseries

  Lundholm, N., Hansen, P. J. & Kotaki, Y., 2005, In: Marine Ecology - Progress Series. 288, p. 21-33

  Research output: Contribution to journal › Journal article › Research › peer-review

  49 Citations (Scopus)
• 2004

  Andaman Sea copepods: spatio-temporal variations in biomass and production, and role in the pelagic food web.

  Satapoomin, S., Nielsen, T. G. & Hansen, P. J., 2004, In: Marine Ecology - Progress Series. 274, p. 99-122

  Research output: Contribution to journal › Journal article › Research › peer-review

  46 Citations (Scopus)

• Assemblages of fish larvae and mesozooplankton across the continental shelf and shelf slope of the Andaman Sea (NE Indian Ocean).

  Munk, P., Bjørnsen, P. K., Boonruang, P., Fryd, M., Hansen, P. J., Janekarn, V., Limtrakulvong, V., Nielsen, T. G., Hansen, O. S., Satapoomin, S., Sawangarreruks, S., Thomsen, H. A. & Østergaard, J. B., 2004, In: Marine Ecology - Progress Series. 274, p. 87-97

  Research output: Contribution to journal › Journal article › Research › peer-review

  14 Citations (Scopus)

• Effect of pH on growth and domoic acid production by potentially toxic diatoms of the genera Pseudo-nitzschia and Nitzschia.

  Lundholm, N., Hansen, P. J. & Kotaki, Y., 2004, In: Marine Ecology - Progress Series. 273, p. 1-15

  Research output: Contribution to journal › Journal article › Research › peer-review

  119 Citations (Scopus)

• Green Noctiluca scintillans: a dinoflagellate with its own greenhouse.

  Hansen, P. J., Miranda, L. & Azanza, R., 2004, In: Marine Ecology - Progress Series. 275, p. 79-87

  Research output: Contribution to journal › Journal article › Research › peer-review

  57 Citations (Scopus)

• Hydrography, bacteria and protist communities across the continental shelf and shelf slope of the Andaman Sea (NE Indian Ocean).

  Nielsen, T. G., Bjørnsen, P. K., Boonruang, P., Fryd, M., Hansen, P. J., Janekarn, V., Limtrakulvong, V., Munk, P., Hansen, O. S., Satapoomin, S., Sawangarreuks, S., Thomsen, H. A. & Østergaard, J. B., 2004, In: Marine Ecology - Progress Series. 274, p. 69-86

  Research output: Contribution to journal › Journal article › Research › peer-review

  26 Citations (Scopus)
• 2003

  Effects of high pH on a natural marine planktonic community

  Pedersen, M. F. & Hansen, P. J., 2003, In: Marine Ecology - Progress Series. 260, p. 19-31

  Research output: Contribution to journal › Journal article › Research › peer-review

  48 Citations (Scopus)

• Effects of high pH on the growth and survival of six marine heterotrophic protists.

  Pedersen, M. F. & Hansen, P. J., 2003, In: Marine Ecology - Progress Series. 260, p. 33-41

  Research output: Contribution to journal › Journal article › Research › peer-review

  85 Citations (Scopus)

• Effects of nutrient limitation on food uptake in the toxic haptophyte Prymnesium parvum.

  Skovgaard, A., Legrand, C., Hansen, P. J. & Granéli, E., 2003, In: Aquatic Microbial Ecology. 31, p. 259-265

  Research output: Contribution to journal › Journal article › Research › peer-review

  39 Citations (Scopus)

• Food uptake in the harmful alga Prymnesium parvum mediated by excreted toxins

  Skovgaard, A. & Hansen, P. J., 2003, In: Limnology and Oceanography. 48(3), p. 1161-1166

  Research output: Contribution to journal › Journal article › Research › peer-review

  92 Citations (Scopus)
• 2002

  Effect of high pH on the growth and survival of marine phytoplankton: implications for species succession

  Hansen, P. J., 2002, In: Aquatic Microbial Ecology. 28, p. 279-288

  Research output: Contribution to journal › Journal article › Research › peer-review

  219 Citations (Scopus)

• Growth and grazing responses of Chrysochromulina ericina (Prymnesiophyceae): the role of irradiance, prey concentration and pH

  Hansen, P. J. & Hjorth, M., 2002, In: Marine Biology. 141, p. 975-983

  Research output: Contribution to journal › Journal article › Research › peer-review

  32 Citations (Scopus)

• Toxin-mediated feeding in the harmful alga Prymnesium parvum

  Skovgaard, A. & Hansen, P. J., 2002.

  Research output: Contribution to conference › Conference abstract for conference › Research
• 2001

  Allelopathy in the prymnesiophyte Chrysochromulina polylepis: effect of cell concentration, growth phase and pH

  Schmidt, L. E. & Hansen, P. J., 2001, In: Marine Ecology - Progress Series. 216, p. 67-81

  Research output: Contribution to journal › Journal article › Research › peer-review

  147 Citations (Scopus)
• 2000

  Growth and grazing responses of two chloroplast-retaining dinoflagellates:effect of irradiance and prey species

  Jakobsen, H. H., Hansen, P. J. & Larsen, J., 2000, In: Marine Ecology - Progress Series. 201, p. 121-128

  Research output: Contribution to journal › Journal article › Research › peer-review

  50 Citations (Scopus)

• Physiology of the mixotrophic dinoflagellate Fragilidium subglobosum. I. Effects of phagotrophy and irradiance on photosynthesis and carbon content

  Skovgaard, A., Hansen, P. J. & Stoecker, D. K., 2000, In: Marine Ecology - Progress Series. 201, p. 129-136

  Research output: Contribution to journal › Journal article › Research › peer-review

  60 Citations (Scopus)

• Physiology of the mixotrophic dinoflagellate Fragilidium subglobosum. II. Effects of time scale and prey concentration on photosynthetic performance

  Hansen, P. J., 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

  • dinoflagellate 100%
  • Miozoa 98%
  • physiology 94%
  • chlorophyll a 70%
  • chlorophyll 68%
  35 Citations (Scopus)

• Physiology of the mixotrophic dinoflagellate Fragilidium subglosum. II. Effects of time scale and prey concentration on photosynthetic performance

  Hansen, P. J., Skovgaard, A., Glud, R. N. & Stoecker, D. K., 2000, In: Marine Ecology - Progress Series. 201, p. 137-146

  Research output: Contribution to journal › Journal article › Research › peer-review
• 1999

  Dyreplankton i danske farvande (Tema-rapport DMU 28)

  Nielsen, T. G. & Hansen, P. J., 1999, National Environmental Research Institute. 64 p. (Tema-rapport).

  Research output: Book/Report › Report › Research

• Meeting report: Third European Congress of Protistology and 9th European Congress on Ciliate Biology, Helsingor, Denmark, July 26-30, 1999

  Hansen, P. J. & Leick, V., 1 Jan 1999, In: Protist. 150, 3, p. 225-228 4 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  2 Citations (Scopus)

• Meeting Report: Third European Congress of Protistology and 9^th European Congress on Ciliate Biology, Helsingør, Denmark, July 26-30

  Hansen, P. J., 1999, In: Protist. 150, p. 225-228

  Research output: Contribution to journal › Journal article › Research

• Phagotrophic Mechanisms and Prey Selection in Free-living Dinoflagellates

  Hansen, P. J. & Calado, A. J., 1999, In: Journal of Eukaryotic Microbiology. 46(4), p. 328-389

  Research output: Contribution to journal › Journal article › Research › peer-review

  170 Citations (Scopus)
• 1998

  Interactions Between Toxic Marine Phytoplankton and Metazoan and Protistan Grazers

  Hansen, P. J., Tester, P. A. & Turner, J. T., 1998, In: NATO SGI. Ser. G 41, p. 453-473

  Research output: Contribution to journal › Journal article › Research › peer-review

• Phagotropic Mechanisms and Prey Selection in Mixotropic Phytoflagellates

  Hansen, P. J., 1998, In: NATO ASI Series. G 41, p. 527-537

  Research output: Contribution to journal › Journal article › Research › peer-review
• 1997

  Mixotrophic feeding of Fragilidium subglobosum (Dinophyceae) on three species of Ceratium: Effects of prey concentration, prey species and light intensity

  Hansen, P. J. & Nielsen, T. G., 1997, In: Marine Ecology - Progress Series. 147, p. 187-196

  Research output: Contribution to journal › Journal article › Research › peer-review

  71 Citations (Scopus)

• 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, P. J., 1997, In: Marine Ecology - Progress Series. 158, p. 75-86

  Research output: Contribution to journal › Journal article › Research › peer-review

• 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, P. J., 17 Nov 1997, In: Marine Ecology Progress Series. 158, 1, p. 75-86 12 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  • prey size 100%
  • size selection 98%
  • Gymnodinium 98%
  • selection response 86%
  • growth response 84%
  114 Citations (Scopus)

• Zooplanktion grazing and growth: Scaling within the 2-2,000-um body size range

  Hansen, P. J., Bjørnsen, P. K. & Hansen, B. W., 1997, In: Limnology and Oceanography. 42 (4), p. 687-704

  Research output: Contribution to journal › Journal article › Research › peer-review

• Zooplankton grazing and growth: Scaling within the 2-2,000-μm body size range

  Hansen, P. J., 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

  • clearance rate 100%
  • ingestion rate 99%
  • meroplankton 78%
  • zooplankton 77%
  • body size 76%
  591 Citations (Scopus)
• 1995

  Distribution and growth of protists and mesozooplankton during a bloom of Chrysochromulina spp. (Prymnesiophyceae, Prymnesiales)

  Hansen, P. J., Nielsen, T. G. & Kaas, H., 1995, In: Phycologia. 34 (5), p. 409-416

  Research output: Contribution to journal › Journal article › Research › peer-review

  20 Citations (Scopus)

• Giftige alger og algeblomstringer i danske farvande

  Hansen, P. J., 1995, In: Naturligvis. 1995, p. 22-24

  Research output: Contribution to journal › Journal article › Research

• 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, P. J., 1995, In: Marine Ecology - Progress Series. 121, p. 65-72

  Research output: Contribution to journal › Journal article › Research › peer-review

  64 Citations (Scopus)

• Microbial diversity and activity in a Danish fjord with anoxic deep water

  Fenchel, T., Bernard, C., Esteban, G., Finlay, B. J., Hansen, P. J. & Iversen, N., 1995, In: Marine Biology Research. 43(1), p. 45-100

  Research output: Contribution to journal › Journal article › Research › peer-review

  127 Citations (Scopus)
• 1994

  Opblomstring af stilkalger i Storebælt

  Hansen, P. J., Nielsen, T. G. & Kaas, H., 1994, In: Vand og Jord. 1. årg., nr. 2, p. 8-13

  Research output: Contribution to journal › Journal article › Research

• The size ratio between planktonic predators and their prey

  Hansen, B., Bjørnsen, P. K. & Hansen, P. J., 1994, In: Limnology and Oceanography. 39 (2), p. 395-403

  Research output: Contribution to journal › Journal article › Research › peer-review

  549 Citations (Scopus)
• 1993

  Havforskning fra Miljøstyrelsen, Giftige alger i danske farvande

  Larsen, J., Hansen, P. J. & Ravn, H., 1993, Miljøstyrelsen. 130 p.

  Research output: Book/Report › Report › Research
• 1992

  Prey. size selection, feeding rates and growth dynamics of heterotrophic dinoflagellates with special emphasis on Gyrodinium spirale

  Hansen, P. J., 1992, In: Marine Biology. 114, p. 327-334

  Research output: Contribution to journal › Journal article › Research › peer-review

  216 Citations (Scopus)