Helge Abildhauge Thomsen

2023

Morphological and molecular reinvestigation of acanthoecid species III. – Kalathoeca cupula (Leadbeater, 1972) gen. et comb. nov. (= Stephanoeca cupula (Leadbeater) Thomsen, 1988)

Schiwitza, S., Thomsen, H. A. & Leadbeater, B. S. C., 2023, In: European Journal of Protistology. 87, 13 p., 125943.

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2022

Morphological and molecular reinvestigation of acanthoecid species I. – Enibas urnula (Thomsen, 1973) comb. nov. (= Stephanoeca urnula Thomsen, 1973)

Schiwitza, S. & Thomsen, H. A., 2022, In: European Journal of Protistology. 83, 11 p., 125865.

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Morphological and molecular reinvestigation of acanthoecid species II. – Pseudostephanoeca paucicostata (Tong et al.) gen. et comb. nov. (= Stephanoeca diplocostata var. paucicostata Throndsen 1969) including also the description of Pseudostephanoeca quasicupula sp. nov. and Stephanoeca ellisfiordensis sp. nov

Schiwitza, S., Thomsen, H. A. & Leadbeater, B. S. C., 2022, In: European Journal of Protistology. 86, 15 p., 125919.

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2021

Loricate choanoflagellates (Acanthoecida) from warm water seas. IX. Coronoeca gen. nov., Polyfibula Manton and spiny forms of Parvicorbicula Deflandre

Thomsen, H. A., Hara, S. & Østergaard, J. B., 2021, In: European Journal of Protistology. 81, 29 p., 125826.

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Loricate choanoflagellates (Acanthoecida) from warm water seas. VIII. Crinolina Thomsen and Diaphanoeca Ellis

Thomsen, H. A. & Østergaard, J. B., 2021, In: European Journal of Protistology. 80, 23 p., 125791.

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2020

Loricate choanoflagellates (Acanthoecida) from warm water seas. VI. Pleurasiga Schiller and Parvicorbicula Deflandre

Thomsen, H. A., Kamennaya, N., Zubkov, M. V. & Østergaard, J. B., 2020, In: European Journal of Protistology. 75, 21 p., 125717.

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Loricate choanoflagellates (Acanthoecida) from warm water seas. VII. Calotheca Thomsen and Moestrup, Stephanacantha Thomsen and Syndetophyllum Thomsen and Moestrup

Thomsen, H. A., Kamennaya, N., Zubkov, M. V. & Østergaard, J. B., 2020, In: European Journal of Protistology. 76, 17 p., 125728.

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2019

Loricate choanoflagellates (Acanthoecida) from warm water seas. III. Acanthocorbis Hara and Takahashi and Stephanoeca Ellis

Thomsen, H. A. & Østergaard, J. B., 2019, In: European Journal of Protistology. 69, p. 52-69

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Loricate choanoflagellates (Acanthoecida) from warm water seas. IV. Cosmoeca Thomsen

Thomsen, H. A. & Østergaard, J. B., 2019, In: European Journal of Protistology. 71, 125632.

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Loricate choanoflagellates (Acanthoecidae) from warm water seas. II. Bicosta, Apheloecion, Campyloacantha, Crucispina, Calliacantha and Saroeca

Thomsen, H. A. & Østergaard, J. B., 2019, In: European Journal of Protistology. 67, p. 114-131

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Loricate choanoflagellates (Acanthoecidae) from warm water seas — a baseline study. I. Conioeca gen. nov. and Nannoeca Thomsen

Thomsen, H. A. & Østergaard, J. B., 2019, In: European Journal of Protistology. 67, p. 77-88

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Loricate choanoﬂagellates (Acanthoecida) from warm water seas. V. Thomsenella Özdikmen (=Platypleura Thomsen)

Thomsen, H. A. & Østergaard, J. B., 2019, In: European Journal of Protistology. 71, 125633.

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2017

Acanthoecid choanoflagellates from the Atlantic Arctic Region - a baseline study

Thomsen, H. A. & Østergaard, J. B., 2017, In: Heliyon. 3, 7, e00345.

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Bridging the gap between morphological species and molecular barcodes - Exemplified by loricate choanoflagellates

Frank, N., Thomsen, H. A. & Daniel J, R., 2017, In: European Journal of Protistology. 57, p. 26-37

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Circumstantial evidence of life history events in loricate choanoflagellates

Thomsen, H. A. & Østergaard, J. B., 2017, In: European Journal of Protistology. 58, p. 26-34

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2016

Baltic Sea coccolithophores - an overview of insights into their taxonomy and ecology from the last 40 years

Thomsen, H. A., 2016, In: Journal of Nannoplankton Research. 36, 2, p. 97-119

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Coccolithophores in Polar Waters: Papposphaera arctica HET and HOL revisited

Thomsen, H. A., Heldal, M. & Østergaard, J. B., 2016, In: Micropaleontology. 61, 6, p. 419-427

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Coccolithophores in Polar Waters: Papposphaera sagittifera HET and HOL revisited

Thomsen, H. A., Østergaard, J. B. & Heldal, M., 2016, In: Acta Protozoologica. 55, 1, p. 33-50

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Coccolithophores in Polar Waters: Papposphaera sarion HET and HOL revisited

Thomsen, H. A., Heldal, M. & Østergaard, J. B., 2016, In: Micropaleontology. 61, 6, p. 429-438

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Formonsella pyramidosa (Haptophyta, Papposphaeraceae): A new weakly calcified coccolithophore genus from warm-water regions

Thomsen, H. A., Cros, L., Malinverno, E., Ostergaard, J. B., Cortés, M. Y., Geisen, M. & Young, J. R., 2016, In: Journal of Micropalaeontology. 35, 2, p. 125-132

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Observations on the morphological diversity and distribution of two siliceous nannoplankton genera, Hyalolithus and Petasaria

Jordan, R. W., Abe, K., Cruz, J., Eriksen, R., Guerreiro, C., Hagino, K., Heldal, M., Hernández-Becerril, D. U., Malinverno, E., Nishida, S., Patil, S. M., Šupraha, L., Thomsen, H. A., Triantaphyllou, M. V. & Young, J. R., 2016, In: Micropaleontology. 61, 6, p. 439-455

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Papposphaera heldalii sp nov (Haptophyta, Papposphaeraceae) from Svalbard

Thomsen, H. A. & Egge, J. K., 2016, In: Acta Protozoologica. 55, 1, p. 27-32

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Papposphaera iugifera nov. sp. from West Greenland, Svalbard, and the Baltic Sea

Thomsen, H. A. & Østergaard, J. B., 2016, In: Revue de Micropaleontologie. 59, 1, p. 71-79

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Papposphaera obpyramidalis (Haptophyta, Papposphaeraceae): New findings from both Polar Regions

Thomsen, H. A., Egge, J. K. & Heldal, M., 2016, In: Revue de Micropaleontologie. 59, 3, p. 267-273

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Seasonal occurrence of Loricate Choanoflagellates in Danish inner waters

Thomsen, H. A., Nitsche, F. & Richter, D. J., 2016, In: Protist. 167, 6, p. 622-638

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2015

Baltic Sea coccolithophores - an overview of findings from the last decades

Thomsen, H. A., 2015, In: Journal of Nannoplankton Research. 35, Sp. Iss. SI, p. 84 1 p.

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Coccolithophorids in polar waters: Mercedesia gen. nov., Ericiolus, Quaternariella and Porsildia gen.nov.

Thomsen, H. A. & Østergaard, J. B., 2015, In: Acta Protozoologica. 54, 3, p. 155-169

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Coccolithophorids in polar waters: Trigonaspis spp. revisited

Thomsen, H. A. & Østergaard, J. B., 2015, In: Acta Protozoologica. 54, 2, p. 85–96

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Ventimolina stellata gen. et sp. nov. (Haptophyta, Papposphaeraceae) from warm water regions

Thomsen, H. A., Østergaard, J. B. & Cros, L., 2015, In: Acta Protozoologica. 54, 4, p. 275-281

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2014

Coccolithophorids in polar waters: Calciarcus spp. revisited

Thomsen, H. A. & Østergaard, J. B., 2014, In: Acta Protozoologica. 53, 2, p. 145-157

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Coccolithophorids in polar waters: Pappomonas spp. revisited

Thomsen, H. A. & Østergaard, J. B., 2014, In: Acta Protozoologica. 53, 3, p. 235-256

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2013

Coccolithophorids in polar waters: Wigwamma spp. revisited

Thomsen, H. A., Østergaard, J. B. & Heldal, M., 2013, In: Acta Protozoologica. 52, 4, p. 237-256

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2007

Nye optiske instrumenter ved Danmarks Fiskeriundersøgelser

Jakobsen, H. H., Thomsen, H. A., Visser, A. & Kiørboe, T., 2007, 14. danske havforskermøde, Syddansk Universitet, 23-25 januar 2007. p. 1-2

Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research

2006

Nanoplankton

Thomsen, H. A., 2006, Arktisk Station 1906-2006. Bruun, L. . A. . (ed.). Københavns Universitet, p. 262-267

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Telonemia, a new protist phylum with affinity to chromist lineages

Shalchian-Tabrizi, K., Eikrem, W., Klaveness, D., Vaulot, D., Minge, M. A., Le Gall, F., Romari, K., Throndsen, J., Botnen, A., Massana, R., Thomsen, H. A. & Jakobsen, K., 2006, In: Royal Society of London. Proceedings. Biological Sciences. 273, 1595, p. 1833-1842

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2005

Telonema antarcticum sp. nov., a common marine phagotrophic flagellate

Klaveness, D., Shalchian-Tabrizi, K., Thomsen, H. A., Eikrem, W. & Jakobsen, K. S., 2005, In: International Journal of Systematic and Evolutionary Microbiology. 55, p. 2595-2604

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The linkage between frontal hydrography and distributional patterns of meso-zooplankton and fish larvae

Munk, P., Jonasdottir, S., Thomsen, H. A. & Diekmann, R., 2005, In: I C E S Council Meeting. p. 1

Research output: Contribution to journal › Conference article › Research

2004

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

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Dansk dambrug ved en skillevej

Thomsen, H. A., Pedersen, P. B. & Pedersen, L-F., 2004, In: Fisk og hav. 58, p. 4-17

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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., Sawangarreruks, S., Thomsen, H. A. & Østergaard, J. B., 2004, In: Marine Ecology - Progress Series. 274, p. 69-86

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Spatial and temporal variability of the phytoplankton community structure in the North Water Polynya, investigated using pigment biomarkers

Vidussi, F., Roy, S., Lovejoy, C., Gammelgaard, M., Thomsen, H. A., Booth, B., Tremblay, J. E. & Mostajir, B., 2004, In: Canadian Journal of Fisheries and Aquatic Sciences. 61, 11, p. 2038-2052

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2003

Changes in plankton and fish larvae communities across hydrographic fronts off West Greenland

Munk, P., Hansen, B. W., Nielsen, T. G. & Thomsen, H. A., 2003, In: Journal of Plankton Research. 25, 7, p. 815-830

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Taxonomy of toxic haptophytes (prymnesiophytes)

Moestrup, Ø. & Thomsen, H. A., 2003, Manual on Harmful Marine Microalgae. Hallegraeff, G. M., Anderson, D. M. & Cembella, A. D. (eds.). UNESCO, p. 433-463 793 p. (Monographs on Oceanographic Methodology Series).

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2002

Udvalget om Miljøpåvirkninger og fiskeriressourcer : Delrapport vedr. eutrofiering

Thomsen, H. A., Nielsen, T. G. & Richardson, K., 2002, Charlottenlund: Danmarks Fiskeriundersøgelser. 45 p. (DFU-rapport; No. 110-02).

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2001

Order 1. Choanoflagellida Kent, 1880

Leadbeater, B. S. C. & Thomsen, H. A., 2001, Illustrated Guide to the Protozoa. Lee, J. J. (ed.). Lawrence: Society of protozoologists

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2000

Life history stages of Pyramimonas tychotreta (Prasinophyceae, Chlorophyta), a marine flagellate from the Ross Sea, Antarctica

Daugbjerg, N., Marchant, H. J. & Thomsen, H. A., 2000, In: Phycological Research. 48, 3, p. 199-209

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1999

The 1998 Danish-German Excursion to Disko Island, West Greenland

Brandt, A., Thomsen, H. A., Heide-Jørgensen, M. P., Kristensen, R. M. & Ruhberg, H., 1999, Bremerhaven: Alfred Wegener Institut für Polar und Meeresforschung. 184 p.

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The 1998 Danish-German Excursion to Disko Island, West Greenland

Thomsen, H. A. & Brandt, A., 1999, The 1998 Danish-German Excursion to Disko Island, West Greenland. Brandt, A., Thomsen, H. A., Heide-Jørgensen, M. P., Kristensen, R. M. & Ruhberg, H. (eds.). Bremerhaven: Alfred Wegener Institut für Polar und Meeresforschung, Vol. 1. p. 1-10 (Berichte zur Polarforschung; No. 330).

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

1998

Infiltration phyto- and protozoo-plankton assemblages in the annual sea-ice of Disko Island, West Greenland, Spring 1996

Buck, K. R., Nielsen, T. G., Hansen, B. W., Gastrup-Hansen, D. & Thomsen, H. A., 1998, In: Polar Biology. 20, p. 377-381

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Nanoflagellates of East Pacific coastal waters: Morphology, taxonomy, and biogeography of weakly calcified coccolithophorids (Prymnesiophyceae)

Thomsen, H. A. & Buck, K. R., 1998, In: Cryptogamie Algologie. 19, 1-2, p. 29-48

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Helge Abildhauge Thomsen

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