Gert Hansen

Gert Hansen

Volunteer

ORCID: 0000-0002-5751-8316

Publication year:
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1 - 50 out of 72Page size: 50
  1. 2023
  2. Published

    Baldinia droopii sp. nov. (Suessiales, Dinophyceae), a new species from a small rainwater rock pool near Tvarminne, south-western Finland

    Hansen, Gert, Daugbjerg, Niels & Moestrup, Øjvind, 2023, In: Phycologia. 62, 1, 15 p.

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

  3. Published

    Inherent lack of CMFDA/FDA staining in certain algae and its implication for ballast water testing

    Hansen, Gert, Petersen, G., Maguet, R., Sim, E. & Madsen, T., 2023, In: Marine Pollution Bulletin. 194, Part B, 9 p., 115312.

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

  4. 2021
  5. Published

    Haslea silbo, A Novel Cosmopolitan Species of Blue Diatoms

    Gastineau, R., Hansen, G., Poulin, M., Lemieux, C., Turmel, M., Bardeau, J-F., Leignel, V., Hardivillier, Y., Morançais, M., Fleurence, J., Gaudin, P., Méléder, V., Cox, E. J., Davidovich, N. A., Davidovich, O. I., Witkowski, A., Kaczmarska, I., Ehrman, J. M., Onís, E. S., Quintana, A. M. & 11 others, Mucko, M., Mordret, S., Sarno, D., Jacquette, B., Falaise, C., Séveno, J., Lindquist, N. L., Kemp, P. S., Eker-Develi, E., Konucu, M. & Mouget, J., 2021, In: Biology. 10, 4, 27 p., 328.

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

  6. 2020
  7. Published

    Closely related dinoflagellate species in vastly different habitats – an example of a marine–freshwater transition

    Annenkova, N. V., Hansen, Gert & Rengefors, K., 2020, In: European Journal of Phycology. 55, 4, p. 478-489 12 p.

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

  8. 2019
  9. Published

    Bornholms desmidiacéer - 130 år efter overlærer Hoff

    Hansen, Gert, Stastny, J., Moestrup, Øjvind & Lundholm, Nina, 2019, In: URT. 2019, 1, p. 8-13

    Research output: Contribution to journal › Journal article › Research

  10. 2018
  11. Published

    Diversity and conservation of desmids in Bornholm, Denmark - revisiting after 130 years

    Hansen, Gert, Stastny, J., Moestrup, Øjvind & Lundholm, Nina, 2018, In: Nordic Journal of Botany. 36, 10, p. 1-14 e01994.

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

  12. Published

    The Rainwater Rock-pool Dinoflagellate Nottbeckia ochracea gen. et comb. nov (syn.: Hemidinium ochraceum) - A Fine-structural and Molecular Study with Emphasis on the Motile Stage

    Hansen, Gert, Daugbjerg, Niels & Moestrup, Øjvind, 2018, In: Protist. 169, 2, p. 280-306 27 p.

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

  13. 2016
  14. Published

    A new blue-pigmented hasleoid diatom, Haslea provincialis, from the Mediterranean Sea

    Gastineau, R., Hansen, Gert, Davidovich, N., Davidovich, O., Bardedeau, J., Kaczmarska, I., Ehrman, J., Leignel, V., Hardivillier, Y., Jacquette, B., Poulin, M., Morançais, M., Fleurence, J. & Mouget , J., 2016, In: European Journal of Phycology. 51, p. 156–170 15 p.

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

  15. Published

    Comparative analysis of membrane Lipids in psychrophilic and mesophilic freshwater dinoflagellates

    Anesi, A., Obertegger, U., Hansen, Gert, Sukenik, A., Flaim, G. & Guella, G., 2016, In: Frontiers in Plant Science. 7, 13 p., 524.

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

  16. 2015
  17. Published

    Recent radiation in a marine and freshwater dinoflagellate species flock

    Annenkova, N. V., Hansen, Gert, Moestrup, Øjvind & Rengefors, K., 2015, In: I S M E Journal. 9, p. 1821-1834 14 p.

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

  18. 2014
  19. Published

    Haslea ostrearia-like diatoms: biodiversity out of the blue

    Gastineau, R., Davidovich, N., Hansen, Gert, Rines, J., Wulff, A., Kaczmarska, I., Ehrman, J., Hermann, D., Maumus, F., Hardivillier, Y., Leignel, V., Jacquette, B., Méléder, V., Hallegraeff, G., Yallop, M., Perkins, R., Cadoret, J., Saint-Jean, B., Carrier, G. & Mouget, J., 2014, Advances in Botanical Research : Sea Plants. Jacquot, J-P. & Gadal, P. (eds.). Elsevier, Vol. 71. p. 441-465 25 p. (Advances in Botanical Research, Vol. 71).

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

  20. Published

    Marennine, promising blue pigments from a widespread Haslea diatom species complex

    Gastineau, R., Turcotte, F., Pouvreau, J-B., Morançais, M., Fleurence, J., Windarto, E., Prasetiya, F. S., Arsad, S., Jaouen, P., Babin, M., Coiffard, L., Couteau, C., Bardeau, J-F., Jacquette, B., Leignel, V., Hardivillier, Y., Marcotte, I., Bourgougnon, N., Tremblay, R., Deschênes, J-S. & 6 others, Badawy, H., Pasetto, P., Davidovich, N., Hansen, Gert, Dittmer, J. & Mouget , J., 2014, In: Marine Drugs. 12, 6, p. 3161-3189 29 p.

    Research output: Contribution to journal › Review › Research › peer-review

  21. Published

    On Levanderina fissa gen. & comb. nov. (Dinophyceae) (syn. Gymnodinium fissum, Gyrodinium instriatum, Gyr. uncatenum), a dinoflagellate with a very unusual sulcus

    Moestrup, Øjvind, Hakanen, P., Hansen, Gert, Daugbjerg, Niels & Ellegaard, Marianne, 2014, In: Phycologia. 53, 3, p. 265-292 28 p.

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

  22. Published

    Studies on woloszynskioid dinoflagellates VII. Description of Borghiella andersenii sp. nov. light and electron microscopy and phylogeny based on LSU rDNA

    Daugbjerg, Niels, Andreasen, T., Happel, E. M., Pandeirada, M. S., Hansen, Gert, Craveiro, S. C., Calado, A. J. & Moestrup, Øjvind, 2014, In: European Journal of Phycology. 49, 4, p. 436-449 14 p.

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

  23. Published

    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

  24. 2011
  25. Published

    Moestrupia oblonga gen. et comb. nov. (syn.: Gyrodinium oblongum), a new marine dinoflagellate genus characterized by light and electron microscopy, photosynthetic pigments and LSU rDNA sequence

    Hansen, Gert & Daugbjerg, Niels, 2011, In: Phycologia. 50, 6, p. 583-599 17 p.

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

  26. Published

    Ultrastructure and LSU rDNA-based phylogeny of Peridinium lomnickii and description of Chimonodinium gen. nov. (Dinophyceae)

    Craveiro, S. C., Calado, A. J., Daugbjerg, Niels, Hansen, Gert & Moestrup, Øjvind, 2011, In: Protist. 162, 4, p. 590-615 26 p.

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

  27. 2010
  28. Published

    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

  29. Published

    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

  30. Published

    Ultrastructure of the harmful unarmored dinoflagellate Cochlodinium polykrikoides (Dinophyceae) with reference to the apical groove and flagellar apparatus

    Iwataki, M., Hansen, Gert, Moestrup, Øjvind & Matsuoka, K., 2010, In: Journal of Eukaryotic Microbiology. 57, 4, p. 308-321 14 p.

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

  31. 2009
  32. Published

    Symbiodinium natans sp. nov. a "free-living" dinoflagellate from Tenerife (Northeast-Atlantic Ocean)

    Hansen, Gert & Daugbjerg, Niels, 2009, In: Journal of Phycology. 45, 1, p. 251-263 13 p.

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

  33. 2008
  34. Published

    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, Henriksen, P., Schlüter, L., Hilligsøe, K. M. & Olesen, Michael, 2008.

    Research output: Contribution to conference › Paper › Research › peer-review

  35. Published

    Studies on woloszynskioid dinoflagellates III: on the ultrastructure and phylogeny of Borghiella dodgei gen. et sp nov., a cold-water species from Lake Tovel, N. Italy, and on B-tenuissima comb. nov (syn. Woloszynskia tenuissima)

    Moestrup, Øjvind, Hansen, Gert & Daugbjerg, Niels, 2008, In: Phycologia. 47, 1, p. 54-78 15 p.

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

  36. Published

     Marine derived dinoflagellates in Antarctic saline lakes: Community composition and annual dynamics

    Rengefors, K., Layborn-Parry, L., Logares, R., Marshall, W. A. & Hansen, Gert, 2008, In: Journal of Phycology. 44, 3, p. 592-604 13 p.

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

  37. Published

     Serial replacement of diatom endosymbiont in two freshwater dinoflagellates, Peridiniopsis spp., (Peridiniales, Dinophyceae)

    Takano, Y., Hansen, Gert, Fujita, D. & Horiguchi, T., 2008, In: Phycologia. 47, p. 41-53 13 p.

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

  38. 2007
  39. Published

    Baldinia anauniensis gen. et sp. nov.: a 'new' dinoflagellate from Lake Tovel, N. Italy.

    Hansen, Gert, Daugbjerg, Niels & Henriksen, P., 2007, In: Phycologia. 46, 1, p. 86-108

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

  40. Published

    Dinoflagellate/cyanobacteria consortia in the tropical Indian Ocean and the North-West Australian Sea

    Tarangkoon, W., Hansen, Gert & Hansen, Per Juel, 2007, In: Journal of Phycology. suppl 1, p. 38-38 1 p.

    Research output: Contribution to journal › Conference abstract in journal › Research

  41. Published

    Dinoflagellates of the Trentino Province, Italy

    Hansen, Gert & Flaim, G., 2007, In: Journal of Limnology. 66, p. 107-141 35 p.

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

  42. Published

    Ultrastructure and large subunit rDNA sequences of Lepidodinium viride reveal a close relationship to Lepidodinium chlorophorum comb. nov. (=Gymnodinium chlorophorum)

    Hansen, Gert, Botes, L. & DeSalas, M., 2007, In: Phycological Research. 55, 1, p. 25-41 17 p.

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

  43. 2006
  44. Published

    Rapid Quantification of the Toxic Alga Prymnesium parvum in Natural Samples by Use of a Specific Monoclonal Antibody and Solid-Phase Cytometry

    West, N. J., Bacchieri, R., Hansen, Gert, Tomas, C., Lebaron, P. & Moreau, H., 2006, In: Applied and Environmental Microbiology. 72, 1, p. 860-868 9 p.

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

  45. Published

    Studies on woloszynskioid dinoflagellates II: On Tovellia sanguinea sp. nov., the dinoflagellate responsible for the reddening of Lake Tovel, N. Italy

    Moestrup, Øjvind, Hansen, Gert, Daugbjerg, Niels, Flaim, G. & D'Andrea, M., 2006, In: European Journal of Phycology. 41, p. 47-65

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

  46. 2005
  47. Published

    Flagellar apparatus and nuclear chambers of the green dinoflagellate Gymnodinium chlorophorum

    Hansen, Gert & Moestrup, Øjvind, 2005, In: Phycological Research. 53, 2, p. 169-181 13 p.

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

  48. 2004
  49. Published

    Karenia selliformis responsible for the fish-kills in the Gulf of Gabès, Tunisia 1994

    Hansen, Gert, Erard-Le Denn, E., Daugbjerg, Niels & Rodriguez, F., 2004.

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

  50. Published

    At male søen rød

    Moestrup, Øjvind & Hansen, Gert, 2004, In: Aktuel Naturvidenskab. 6, p. 15-17

    Research output: Contribution to journal › Journal article › Research

  51. Published

    Da Glenodinium a Tovellia

    Flaim, G., Moestrup, Øjvind, Hansen, Gert & D'Andrea, M., 2004, Studio sul mancato arrossamento del Lago di Tovel. Borghi, B., Borsato, A., Cantonati, M., Corradini, F. & Flaim, G. (eds.). Vol. 81. p. 447-457 11 p.

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

  52. Published

    Investigations of body scales in twelve Heterocapsa species (Peridiniales, Dinophyceae), including a new species H. pseudotriquetra sp. nov.

    Iwataki, M., Hansen, Gert, Sawaguchi, T., Hiroishi, S. & Fukuyo, Y., 2004, In: Phycologia. 43, 4, p. 394-403

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

  53. Published

    Reinterpretation of the dinoflagellate Glenodinium sanguineum in the reddening of Lake Tovel, Italian Alps

    Flaim, G., Hansen, Gert, Moestrup, Øjvind, Corradini, F. & Borghi, B., 2004, In: Phycologia. 43, p. 737-743

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

  54. Published

    Ultrastructure of Gyrodinium spirale, the type species of Gyrodinium (Dinophyceae), including a phylogeny of G. dominans, G. rubrum and G. spirale deduced from partial LSU rDNA sequences

    Hansen, Gert & Daugbjerg, Niels, 2004, In: Protist. 155, p. 271-294

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

  55. 2003
  56. Published

    Morphology, toxin composition and LSU rDNA phylogeny of Alexandrium minutum (Dinophyceae) from Denmark, with some morphological observations on other European strains

    Hansen, Gert, Daugbjerg, Niels & Franco, J. M., 2003, In: Harmful Algae. 2, 4, p. 317-335

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

  57. Published

    Species concepts of the genus Alexandrium with special emphasis on Alexandrium minutum and related species

    Hansen, Gert, Daugbjerg, Niels & Franco, J. M., 2003.

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

  58. Published

    Suessiales, a major order of extant dinoflagellates?

    Moestrup, Øjvind, Daugbjerg, Niels, Ellegaard, Marianne, Hansen, Gert & Lindberg, K., 2003.

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

  59. 2002
  60. Published

    Recent developments of dinoflagellate taxonomy, with special emphasis on unarmored harmful species.

    Hansen, Gert, 2002, In: Fisheries Science. 68, Suppl 1, p. 501-506 6 p.

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

  61. 2001
  62. Published

    New developments in dinoflagellate taxonomy, with speciesl emphasis on unarmored harmful species

    Hansen, Gert, 2001.

    Research output: Contribution to conference › Conference abstract for conference › Commissioned

  63. Published

    Potentially harmful microalgae of the Western Indian Ocean: A guide based on a preliminary survey

    Hansen, Gert, Turquet, J., Quod, J., Ten-Hage, L., Lugomela, C., Kyewalyanga, M., Hurbungs, M., Wawiye, P., Ogongo, B., Tunje, S. & Rakotoarinjanahary, H., 2001, Paris: Unesco. 105 p. (IOC Manual and Guides).

    Research output: Book/Report › Book › Research › peer-review

  64. Published

    ULTRASTRUCTURE OF GYMNODINIUM AUREOLUM (DINOPHYCEAE): TOWARD A FURTHER REDEFINITION OF GYMNODINIUM SENSU STRICTO

    Hansen, Gert, 2001, In: Journal of Phycology. 37, 4, p. 612-624 12 p.

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

  65. 2000
  66. Published

    Comparative study of Gymnodinium mikimotoi and Gymnodinium aureolum comb. nov. (= Gyrodinium aureolum) based on morphology, pigment composition, and molecular data.

    Hansen, Gert, Daugbjerg, Niels & Henriksen, P., 2000, In: Journal of Phycology. 36, 2, p. 394-410 17 p.

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

  67. Published

    Light and electron microscopical observations on the type species of Gymnodinium, G. fuscum (Dinophyceae)

    Hansen, Gert, Moestrup, Øjvind & Roberts, K. R., 2000, In: Phycologia. 39, p. 365-376 12 p.

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

  68. Published

    Phylogeny of some of the major genera of dinoflagellates based on ultrastructure and partial LSU rDNA sequence data, including the erection of 3 new genera of unarmoured dinoflagellates.

    Daugbjerg, Niels, Hansen, Gert, Larsen, Jacob & Moestrup, Øjvind, 2000, In: Phycologia. 39, 4, p. 302-317 16 p.

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

  69. 1999
  70. Published

    Gymnodinium

    Heimann, K., Hansen, Gert & Roberts, K. R., 1999, Encyclopedia of Life Sciences. Macmillan Publishers Limited, Oxford, England: Palgrave Macmillan

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

  71. Published

    Architecture of the flagellar apparatus and related structures in the type species of Peridinium, P. cinctum (Dinophyceae)

    Calado, A. C., Hansen, Gert & Moestrup, Øjvind, 1999, In: European Journal of Phycology. 34, 2, p. 179-191 13 p.

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

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