Marianne Ellegaard

Marianne Ellegaard

External Lecturer

ORCID: 0000-0002-6032-3376

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  1. Published

    Using the sediment archive of living dinoflagellate cysts and other protist resting stages to study temporal population dynamics

    Ellegaard, Marianne, dos Santos Ribeiro, Sofia Isabel, Lundholm, Nina, Andersen, Thorbjørn Joest, Berge, T., Ekelund, Flemming, Härnström, K. & Godhe, A., 2013, Biological and geological perspectives of dinoflagellates. Lewis, J. M., Marret, F. & Bradley, L. R. (eds.). Geological Society, p. 149-153 5 p. (The Micropalaeontological Society, Special Publications, Vol. 5).

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

  2. Published

    Tracking changes in dinoflagellate community structure through time: an example from Mariager Fjord, Denmark, linked to eutrophication. Programme and abstracts, 11th international conference on harmful lagae blooms, Cape Town, South Africa

    Ellegaard, Marianne, 2004.

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

  3. Published

    Time capsules in natural sediment archives—Tracking phytoplankton population genetic diversity and adaptation over multidecadal timescales in the face of environmental change

    Ellegaard, Marianne, Godhe, A. & Ribeiro, S., 2018, In: Evolutionary Applications. 11, 1, p. 11-16 6 p.

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

  4. Published

    The species concept in a marine diatom: LSU rDNA–based phylogenetic differentiation in Skeletonema marinoi/dohrnii (Bacillariophyceae) is not reflected in morphology

    Ellegaard, Marianne, Godhe, A., Härnström, K. & McQuoid, M., 2008, In: Phycologia. 47, 2, p. 156-167 11 p.

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

  5. Published

    The long-term persistence of phytoplankton resting stages in aquatic "seed banks"

    Ellegaard, Marianne & Ribeiro, S., 2018, In: Biological Reviews. 93, 1, p. 166-183 18 p.

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

  6. Published

    The fascinating diatom frustule—can it play a role for attenuation of UV radiation?

    Ellegaard, Marianne, Lenau, T. A., Lundholm, Nina, Maibohm, C., Friis, S. M. M., Rottwitt, K. & Su, Y., 2016, In: Journal of Applied Phycology. 28, 6, p. 3295-3306 12 p.

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

  7. Published

    The effects of light on the nanostucture of a microalgae (diatom)

    Su, Y., Ellegaard, Marianne & Lundholm, Nina, 27 Aug 2014.

    Research output: Contribution to conference › Poster › Research

  8. Published

    The effect of different light regimes on diatom frustule silicon concentration

    Su, Y., Lundholm, Nina & Ellegaard, Marianne, 2018, In: Algal Research. 29, p. 36-40 5 p.

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

  9. Published

    The dinoflagellate cyst genera Achomosphaera Evitt 1963 and Spiniferites Mantell 1850 in Pliocene to modern sediments: a summary of round table discussions

    Mertens, K. N., Van Nieuwenhove, N., Gurdebeke, P. R., Aydin, H., Bogus, K., Bringue, M., Dale, B., De Schepper, S., de Vernal, A., Ellegaard, M., Grothe, A., Gu, H., Head, M. J., Heikkila, M., Limoges, A., Londeix, L., Louwye, S., Marret, F., Masure, E., Matsuoka, K. & 13 others, Mudie, P. J., Penaud, A., Pospelova, V., Price, A. M., Ribeiro, S., Rochon, A., Sangiorgi, F., Schreck, M., Torres, V., Uzar, S., Versteegh, G. J. M., Warny, S. & Zonneveld, K., 2018, In: Palynology. 42, Suppl. 1, p. 10-44

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

  10. Published

    The acritarchous resting cyst of the athecate dinoflagellate Warnowia cf. rosea (Dinophyceae)

    Ellegaard, Marianne, Dale, B. & Amorim, A., 2002, In: Phycologia. 40, p. 542-546

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

  11. Published

    The UV filtering potential of drop-casted layers of frustules of three diatom species

    Su, Y., Lenau, T. A., Gundersen, E., Kirkensgaard, Jacob Judas Kain, Maibohm, C., Pinti, J. & Ellegaard, Marianne, 2018, In: Scientific Reports. 8, 1, 10 p., 959.

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

  12. Published

    The Scandinavian Culture Center for Algae and Protozoa

    Ellegaard, Marianne, Larsen, N. H., Daugbjerg, Niels, Pedersen, P. M. & Moestrup, Øjvind, 2004, In: Nova Hedwigia: Zeitschrift für Kryptogamenkunde. 79(1-2), p. 93-98

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

  13. Published

    The Gonyaulax spinifera (Dinophyceae) "complex": Perpetuating the paradox?

    Rochon, A., Lewis, J., Ellegaard, Marianne & Harding, I. C., 2009, In: Review of Palaeobotany and Palynology. 155, 1-2, p. 52-60

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

  14. Published

    Tertiary dinoflagellate biostratigraphy of sites 907, 908, 909 in the Norwegian-Greenland Sea

    Poulsen, N. E., Mamum, S. B., Williams, G. L. & Ellegaard, Marianne, 1996, In: Proceedings of the Ocean Drilling Program, Scientific Results. Vol. 151, p. 255-285

    Research output: Contribution to journal › Journal article › Research

  15. Published

    Temporal changes in physical, chemical and biological sediment parameters in a tropical estuary after mangrove deforestation

    Ellegaard, Marianne, Nguyen, N. T. G., Andersen, Thorbjørn Joest, Michelsen, Anders, Lam Nguyen, N., Hai Doan, N., Kristensen, E., Weckström, K., Phuoc Hoang Son, T. & Lund-Hansen, L. C., 2014, In: Estuarine, Coastal and Shelf Science. 142, p. 32-40 9 p.

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

  16. Published

    Temperature and salinity effects on growth of a non-chain-forming strain of Gymnodinium catenatum (Dinophyceae) established from a cyst from recent sediments in the Sound (Øresund), Denmark

    Ellegaard, Marianne, Christensen, N. F. & Moestrup, Øjvind, 1993, In: Journal of Phycology. 29, p. 418-426

    Research output: Contribution to journal › Journal article › Research

  17. Published

    Taxonomic re-examination of the toxic armored dinoflagellate Pyrodinium bahamense Plate 1906: Can morphology or LSU sequencing separate P. bahamense var. compressum from var. bahamense?

    Mertens, K. N., Wolny, J., Carbonell-Moore, C., Bogus, K., Ellegaard, Marianne, Limoges, A., de Vernal, A., Gurdebeke, P., Omura, T., Al-Muftah, A. & Matsuoka, K., 2015, In: Harmful Algae. 41, p. 1-24 24 p.

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

  18. 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

  19. Published

    Structure-based optics of centric diatom frustules: modulation of the in vivo light field for efficient diatom photosynthesis

    Gössling, J. W., Su, Y., Sousa Dias Cartaxana, P. J., Maibohm, C., Rickelt, L. F., Trampe, Erik, Walby, S. L., Wangpraseurt, D., Wu, X., Ellegaard, Marianne & Kühl, Michael, 2018, In: New Phytologist. 219, 1, p. 122-134 13 p.

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

  20. Published

    Spring Succession and Vertical Export of Diatoms and IP25 in a Seasonally Ice-Covered High Arctic Fjord

    Limoges, A., Masse, G., Weckstrom, K., Poulin, M., Ellegaard, Marianne, Heikkila, M., Geilfus, N., Sejr, M. K., Rysgaard, S. & dos Santos Ribeiro, Sofia Isabel, 2018, In: Frontiers in Earth Science. 6, 15 p.

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

  21. Published

    Spatial distribution of phytoplankton in Spring 2004 along a transect in the eastern part of the North Sea

    Skaloud, P., Rezacova, M. & Ellegaard, Marianne, 2006, In: Journal of Oceanography : Journal of the Oceanographic Society of Japan. 62, 5, p. 717-729

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

  22. Published

    Size differences of Arctic marine protists between two climate periods - using the paleoecological record to assess the importance of within-species trait variation

    Mousing, E. A., Ribeiro, S., Chisholm, C., Kuijpers, A., Moros, M. & Ellegaard, Marianne, 2017, In: Ecology and Evolution. 7, 1, p. 3-13 11 p.

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

  23. Published

    Sea surface temperatures in Disko Bay during the Little Ice Age - caution needs to be exercised before assigning Thalassiosira kushirensis resting spore as a warm-water indicator in palaeoceanographic studies

    Weckstrom, K., Miettinen, A., Caissie, B., Pearce, C., Ellegaard, Marianne, Krawczyk, D. & Witkowski, A., 2014, In: Quaternary Science Reviews. 101, p. 234-237 4 p.

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

  24. Published

    Scandinavian Culture Collection of Algae and Protozoa. Abstracts, Culture Collections of Algae: increasing accessibility and exploring Algal Biodiversity, September 2-6, Göttingen, Germany

    Ellegaard, Marianne, Larsen, N. H., Daugbjerg, Niels, Pedersen, P. M. & Moestrup, Øjvind, 2002.

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

  25. Published

    Resting cysts of freshwater dinoflagellates in southeastern Georgian Bay (Lake Huron) as proxies of cultural eutrophication

    McCarthy, F. M. G., Mertens, K. N., Ellegaard, Marianne, Sherman, K., Pospelova, V., dos Santos Ribeiro, Sofia Isabel, Blasco, S. & Vercauteren, D., 2011, In: Review of Palaeobotany and Palynology. 166, 1–2, p. 46-62 17 p.

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

  26. Published

    Reconstructing the history of an invasion: the toxic phytoplankton species Gymnodinium catenatum in the Northeast Atlantic

    dos Santos Ribeiro, Sofia Isabel, Amorim, A., Andersen, Thorbjørn Joest, Abrantes, F. & Ellegaard, Marianne, 2012, In: Biological Invasions. 14, 5, p. 969-985 17 p.

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

  27. Published

    Process length variation in cysts of the dinoflagellate Protoceratium reticulatum, from surface sediments of the Baltic–Kattegat–Skagerrak estuarine system: a regional salinity proxy

    Mertens, K. N., Dale , B., Ellegaard, Marianne, Jansson, I., Godhe, A., Kremp, A. & Louwye, S., 2011, In: Boreas. 40, 2, p. 242-255 14 p.

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

  28. Published

    Process length variation in cysts of a dinoflagellate, Lingulodinium machaerophorum, in surface sediments: investigating its potential as salinity proxy.

    Mertens, K., Ribeiro, S., Ilham, B., Caner, H., Combourieu-Nebout, N., Dale, B., de Vernal, A., Ellegaard, M., Filipova, M., Godhe, A., Goubert, E., Grøsfjeld, K., Holzwarth, U., Kotthoff, U., Leroy, S. A. G., Londeix, L., Marret, F., Matsuoka, K., Mudle, P. J., Naudts, L. & 11 others, Peña-Manjarrez, J. L., Persson, A., Popescu, S., Pospelova, V., Sangiorgi, F., van der Meer, M. T. J., Vink, A., Zonneveld, K. A. F., Vercauteren, D., Vlassenbroeck, J. & Louwye, S., 2009, In: Marine Micropaleontology. 70, 1-2, p. 54-69 15 p.

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

  29. Published

    Population genetic structure of Skeletonema marinoi - a model species for phytoplankton bloom dynamics

    Godhe, A., Härnström, K. & Ellegaard, Marianne, 2006.

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

  30. Published

    Phytoplankton growth after a century of dormancy illuminates past resilience to catastrophic darkness

    dos Santos Ribeiro, Sofia Isabel, Berge, T., Lundholm, Nina, Andersen, Thorbjørn Joest, Abrantes, F. & Ellegaard, Marianne, 2011, In: Nature Communications. 2, 7 p., 311.

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

  31. Published

    Patterns in the form of formative feedback and student response

    Ellegaard, Marianne, Damsgaard, L., Bruun, Jesper & Johannsen, B. F., 2018, In: Assessment and Evaluation in Higher Education. 43, 5, p. 727-744 18 p.

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

  32. Published

    Palaeoenvironmental history of the Baltic Sea: one of the largest brackish-water ecosystems in the world

    Weckström, K., Lewis, J. P., Andrén, E., Ellegaard, Marianne, Rasmussen, P. & Telford, R., 2017, Applications of paleoenvironmental techniques in estuarine studies. Weckström, K., Saunders, K. M., Gell, P. A. & Skillbeck, C. G. (eds.). Springer, p. 615-662 48 p. (Developments in Paleoenvironmental Research, Vol. 20).

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

  33. 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

  34. Published

    Multi-proxy evidence of long-term changes in ecosystem structure in a Danish marine estuary, linked to increased nutrient loading

    Ellegaard, Marianne, Clarke, A. L., Reuss, N. S., Drew, S., Wekström, K., Juggins, S., Anderson, N. J. & Conley, D. J., 2006, In: Estuarine, Coastal and Shelf Science. 68, 3-4, p. 567-578

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

  35. Published

    Morphology and molecular phylogeny of Nitzschia bizertensis sp nov.- a new domoic acid-producer

    Smida, D. B., Lundholm, Nina, Kooistra, W. H. C. F., Sahraoui, I., Ruggiero, M. V., Kotaki, Y., Ellegaard, Marianne, Lambert, C., Mabrouk, H. H. & Hlaili, A. S., 2014, In: Harmful Algae. 32, p. 49-63 15 p.

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

  36. Published

    Morphological and LSU & dna sequence variation within the Gonyaulax spinifera/spiniferites- group (Dinophyceae) and proposal of Gonyaulax elongata comb. nov. and G. membranaceae comb. nov.

    Ellegaard, Marianne, Daugbjerg, Niels, Rochon, A., Lewis, J. & Harding, I., 2003, In: Phycologia. 42(2), p. 151-164

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

  37. Published

    Monitoring long-term trends in eutrophication and nutrients in the coastal zone. Abstracts, 9th international palaeolimnology symposium, Espoo, Finland

    Conley, D., Andersen, J., Anderson, J., Andrén, E., Clarke, A. M., de Jonge, V., Ellegaard, Marianne & Juggins, S., 2003.

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

  38. Published

    Monitoring long-term trends in eutrophication and nutrients in the coastal zone. Abstracts, 2004 ASLO meeting

    Conley, D., Anderson, J., Andrén, E., Clarke, A. M., de Jonge, V., Ellegaard, Marianne, Juggins, S. & Kauppila, P., 2004.

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

  39. Published

    Microsatellite markers for the palaeo-temperature indicator Pentapharsodinium dalei (Dinophyceae)

    Lundholm, Nina, Nielsen, Lene Rostgaard, Ribeiro, S. & Ellegaard, Marianne, 2014, In: Journal of Applied Phycology. 26, 1, p. 417-420 4 p.

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

  40. Published

    Long-term trends in eutrophication and nutrients in the coastal zone

    Clarke, A., Weckström, K., Conley, D., Anderson, N. J., Adser, F., Andrén, E., de Jonge, V., Ellegaard, Marianne, Juggins, S., Kauppila, P., Korhola, A., Reuss, N. S., Telford, R. J. & Vaalgamaa, S., 2006, In: Limnology and Oceanography. 51, 1, part 2, p. 385-397

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

  41. Published

    Long-term survival of haptophyte and prasinophyte resting stages in marine sediment

    Ellegaard, Marianne, Moestrup, Øjvind, Andersen, Thorbjørn Joest & Lundholm, Nina, 2016, In: European Journal of Phycology. 51, 3, p. 328-337 10 p.

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

  42. Published

    Long-term survival of dinoflagellate cysts in anoxic marine sediments.

    Ellegaard, Marianne, Lundholm, Nina, dos Santos Ribeiro, Sofia Isabel, Ekelund, Flemming & Andersen, Thorbjørn Joest, 2008.

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

  43. Published

    Long-term cultivation of the diatom Coscinodiscus granii at different light spectra: effects on frustule morphology

    Su, Y., Lundholm, Nina & Ellegaard, Marianne, Aug 2017, In: Journal of Applied Phycology. 29, 4, p. 1775-1779 5 p.

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

  44. Published

    Linking biological and geological data on dinoflagellates using the genus Spiniferites as an example: the implications of species concepts, taxonomy and dual nomenclature

    Ellegaard, Marianne, Head, M. J. & Versteegh, G. J. M., 2018, In: Palynology. 42, Suppl. 1, p. 221-230

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

  45. Published

    Interference patterns and extinction ratio of the diatom Coscinodiscus granii

    Maibohm, C., Friis, S. M. M., Ellegaard, Marianne & Rottwitt, K., 2015, In: Optics Express. 23, 7, p. 9543-9548 6 p.

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

  46. Published

    Influence of surface salinity gradient on dinoflagellate cyst community structure, abundance and morphology in the Baltic Sea, Kattegat and Skagerrak

    Sildever, S., Andersen, Thorbjørn Joest, Ribeiro, S. & Ellegaard, Marianne, 2015, In: Estuarine, Coastal and Shelf Science. 155, p. 1-7 7 p.

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

  47. Published

    Implications for photonic applications of diatom growth and frustule nanostructure changes in response to different light wavelengths

    Su, Y., Lundholm, Nina, Friis, S. M. M. & Ellegaard, Marianne, 2015, In: Nano Research. 8, 7, p. 2363-2372 10 p.

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

  48. Published

    Hundred years of genetic structure in a sediment revived diatom population

    Haernstroem, K., Ellegaard, Marianne, Andersen, Thorbjørn Joest & Godhe, A., 2011, In: Proceedings of the National Academy of Sciences USA (PNAS). 108, 10, p. 4252-4257 6 p.

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

  49. Published

    Hundred years of environmental change and phytoplankton ecophysiological variability archived in coastal sediments

    dos Santos Ribeiro, Sofia Isabel, Berge, T., Lundholm, Nina & Ellegaard, Marianne, 11 Apr 2013, In: PLoS ONE. 8, 4, 8 p., e61184.

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

  50. Published

    Gymnodinium corollarium sp. nov. (Dinophyceae) - a new cyst forming cold-water dinoflagellate from the Baltic Sea; morphology, molecular phylogeny and ecophysiology.

    Sundström, A. M., Kremp, A., Daugbjerg, Niels, Moestrup, Øjvind, Ellegaard, Marianne, Hadju, S. & Hansen, R., 2008. 1 p.

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

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