Ruth Nielsen

Ruth Nielsen

Associate professor emerIta


  1. 2023
  2. Published

    Reviewing Introduction Histories, Pathways, Invasiveness, and Impact of Non-Indigenous Species in Danish Marine Waters

    Jensen, Kathe, Andersen, P., Andersen, N. R., Bruhn, A., Buur, H., Carl, Henrik, Jakobsen, H., Jaspers, C., Lundgreen, K., Nielsen, Ruth, Strandberg, B. & Stæhr, P. A. U., 2023, In: Diversity. 15, 3, 44 p., 434.

    Research output: Contribution to journalReviewResearchpeer-review

  3. 2016
  4. Published

    Culture and field studies of Ulvellaceae and other microfilamentous green seaweeds in subarctic and arctic waters around Iceland

    Gunnarsson, K. & Nielsen, Ruth, 2016, In: Nova Hedwigia. 103, 1-2, p. 17-46 30 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. 2014
  6. Published

    Description of Ulvella elegans sp. nov. and U. islandica sp. nov. (Ulvellaceae, Ulvophyceae) from Island - a study based on morphology of species in culture and tufA gene sequences.

    Nielsen, Ruth, Gunnarsson, K., Daugbjerg, Niels & Petersen, G., 2014, In: European Journal of Phycology. 49, 1, p. 60-67 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  7. 2013
  8. Published

    Revision of the genus Ulvella (Ulvellaceae, Ulvophyceae) based on morphology and tufA gene sequences of species in culture, with Acrochaete and Pringsheimiella placed in synonymy

    Nielsen, Ruth, Petersen, G., Seberg, Ole, Daugbjerg, Niels, O'Kelly, C. J. & Wysor, B., 4 Jan 2013, In: Phycologia. 52, 1, p. 37-56 20 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  9. 2012
  10. Published

    New insights into the biodiversity and generic relationships of foliose Bangiales (Rhodophyta) in Iceland and the Faroe Islands

    Mols-Mortensen, A., Neefus, C. D., Nielsen, Ruth, Gunnarsson, K., Egilsdóttir, S., Pedersen, P. M. & Brodie, J., 2012, In: European Journal of Phycology. 47, 2, p. 146-159 14 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. 2009
  12. Published

    Marine makroalger i Københavns Havn med fund af Polysiphonia kiliana - ny art for Danmark

    Nielsen, Ruth, 2009, In: Flora og Fauna. 114, 3-4, p. 77-89 13 p.

    Research output: Contribution to journalJournal articleCommunication

  13. 2007
  14. Published

    Acrochaete

    Nielsen, Ruth, Rinkel, B. & Brodie, J., 2007, Green Seaweeds of Britain and Ireland. Brodie, J., Maggs, C. A. & John, D. M. (eds.). 1 ed. Dunmurry, Northern Ireland: British Phycological Society, p. 108-119 12 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  15. Published

    Blastophysa

    Nielsen, Ruth, 2007, Green Seaweeds of Britain and Ireland. Brodie, J., Maggs, C. A. & John, D. M. (eds.). 1 ed. Dunmurry, Northern Ireland: British Phycological Society, p. 184-185 2 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  16. Published

    Bolbocoleon

    Nielsen, Ruth, Rinkel, B. & Brodie, J., 2007, Green Seaweeds of Britain and Ireland. Brodie, J., Maggs, C. A. & John, D. M. (eds.). 1 ed. Dunmurry, Northern Ireland: British Phycological Society, p. 62-63 2 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  17. Published

    Epicladia

    Nielsen, Ruth, 2007, Green Seaweeds of Britain and Ireland. Brodie, J., Maggs, C. A. & John, D. M. (eds.). 1 ed. Dunmurry, Northern Ireland: British Phycological Society, p. 119-123 4 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  18. Published

    Ochlochaete

    Nielsen, Ruth, 2007, Green Seaweeds of Britain and Ireland. Brodie, J., Maggs, C. A. & John, D. M. (eds.). 1 ed. Dunmorry, Northern Ireland: British Phycological Society, p. 75-76 2 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  19. Published

    Ostreobium

    Nielsen, Ruth, 2007, Green Seaweeds of Britain and Ireland. Brodie, J., Maggs, C. A. & John, D. M. (eds.). 1 ed. British Phycological Society, p. 207-208 2 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  20. Published

    Phaeophila

    Nielsen, Ruth, 2007, Green Seaweeds of Britain and Ireland. Brodie, J., Maggs, C. A. & John, D. M. (eds.). 1 ed. British Phycological Society, p. 73-75 3 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  21. Published

    Pringsheimiella

    Nielsen, Ruth, 2007, Green Seaweeds of Britain and Ireland. Brodie, J., Maggs, C. A. & John, D. M. (eds.). 1 ed. Dunmurry, Northern Ireland: British Phycological Society, p. 123-125 2 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  22. Published

    Pseudendoclonium

    Nielsen, Ruth, 2007, Green Seaweeds of Britain and Ireland. Brodie, J., Maggs, C. A. & John, D. M. (eds.). 1 ed. British Phycological Society, p. 66-70 4 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  23. Published

    Pseudopringsheimia

    Nielsen, Ruth, 2007, Green Seaweeds of Britain and Ireland. Brodie, J., Maggs, C. A. & John, D. M. (eds.). 1 ed. Dunmurry, Northern Ireland: British Phycological Society, p. 125-126 1 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  24. Published

    Ruthnielsenia

    Nielsen, Ruth, 2007, Green Seaweeds of Britain and Ireland. Brodie, J., Maggs, C. A. & John, D. M. (eds.). 1 ed. British Phycological Society, p. 79-80 1 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  25. Published

    Syncoryne

    Nielsen, Ruth, 2007, Green Seaweeds of Britain and Ireland. Brodie, J., Maggs, C. A. & John, D. M. (eds.). 1 ed. Dunmurry, Northern Ireland: British Phycological Society, p. 126-127 2 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  26. Published

    Tellamia

    Nielsen, Ruth & Wilkinson, M., 2007, Green Seaweeds of Britain and Ireland. Brodie, J., Maggs, C. A. & John, D. M. (eds.). 1 ed. British Phycological Society, p. 70-73 3 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  27. Published

    Ulvella

    Nielsen, Ruth, 2007, Green Seaweeds of Britain and Ireland. Brodie, J., Maggs, C. A. & John, D. M. (eds.). 1 ed. Dunmurry, Northern Ireland: British Phycological Society, p. 128-130 3 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  28. 2005
  29. Published

    Algevegetationen ved Nordre Rønner 2005

    Nielsen, Ruth, 2005, København.

    Research output: Book/ReportReportCommunication

  30. Published

    Dusktang, en ny og spændende rødalge i danske farvande

    Nielsen, Ruth & Mathiesen, L., 2005, In: URT. 29, p. 72-77

    Research output: Contribution to journalJournal articleResearch

  31. Published

    Hvad det gamle herbarium også gemte

    Tendal, O. S. & Nielsen, Ruth, 2005, In: Dyr i Natur og Museum. 1, p. 26-28

    Research output: Contribution to journalJournal articleResearch

  32. Published

    Relationships of algal floras in the North Atlantic Islands (Iceland, the Faroes, the Shetlands, the Orkneys)

    Tittley, I., Nielsen, Ruth & Gunnarsson, K., 2005, In: Annales Societas Scientiarum Færoensis supplementum. 41, p. 33-52

    Research output: Contribution to journalJournal articleResearchpeer-review

  33. Published

    Tangvegetationen omkring Læsø

    Nielsen, Ruth, 2005, Naturforholdene i havet omkring Læsø. Pilotprojekt marin nationalpark Læsø. Olesen, M. (ed.). København, p. 36-42, 110-115

    Research output: Chapter in Book/Report/Conference proceedingBook chapterCommunication

  34. Published

    The diversity of the Bangiophycidae (Rhodophyta) of the Faroes in the context of the northern Atlantic

    Brodie, J. & Nielsen, Ruth, 2005, In: Annales Societas Scientiarum Færoensis supplementum. 41, p. 53-62

    Research output: Contribution to journalJournal articleResearchpeer-review

  35. 2004
  36. Published

    Udvikling og afprøvning af metoder til indsamling af flora og fauna på småstenede hårdbundshabitater. Danmarks Miljøundersøgelser. Faglig rapport fra DMU 521

    Dahl, K., Nicolaisen, J., Nielsen, Ruth & Tendal, O. S., 2004, DMU Danmarks Miljøundersøgelser Internet udgave.

    Research output: Book/ReportReportCommunication

  37. 2003
  38. Published

    4.1 Introduction to the descriptions of the species

    Schubert, M., Blümel, C., Blindow, I. & Nielsen, Ruth, 2003, Charophytes of the Baltic Sea. FL 9491 Ruggell: A.R.G. Gantner Verlag Kommanditgesellschaft, p. 37-41

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  39. Published

    4.18 Lamprothamnium papulosum (Wallr.) J. Groves, 1916

    Andersson, J., Garniel, A. & Nielsen, Ruth, 2003, Charophytes of the Baltic Sea. FL 9491 Ruggell: A.R.G. Gantner Verlag Kommanditgesellschaft, p. 156-162

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  40. Published

    4.8 Chara fragifera Durieu 1859

    Nielsen, Ruth, 2003, Charophytes of the Baltic Sea. FL 9491 Ruggell: A.R.G. Gantner Verlag Kommanditgesellschaft, p. 95-96

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  41. Published

    4.9 Chara galioides DC. 1813

    Küster, A. & Nielsen, Ruth, 2003, Charophytes of the Baltic Sea. FL 9491 Ruggell: A.R.G. Gantner Verlag Kommanditgesellschaft, p. 97-98

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  42. Published

    6. Conservation and threats - Proposal of a Red Data Book for charophytes in the Baltic Sea -

    Blindow, I., Garniel, A., Munsterhjelm, R. & Nielsen, Ruth, 2003, Charophytes of the Baltic Sea. FL 9491 Ruggell: A.R.G. Gantner Verlag Kommanditgesellschaft, p. 251-260

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  43. Published

    8. References to the Charophytes of the Baltic Sea

    Nielsen, Ruth, Schubert, H. & Blindow, I., 2003, Charophytes of the Baltic Sea. FL 9491 Ruggell: A.R.G. Gantner Verlag Kommanditgesellschaft, p. 285-310

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  44. 2002
  45. Published

    Eitt sindur um stórtara í Føroyum

    Nielsen, Ruth, 2002, In: Froedi. 1, p. 5-10

    Research output: Contribution to journalJournal articleCommunication

  46. Published

    Færøernes havalger

    Nielsen, Ruth, 2002, Ikke angivet. Dansk Nationalråd for Oceanografi, p. 1

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearch

  47. Published

    Ilanddrevne havalger

    Nielsen, Ruth, 2002, In: URT. 26, p. 24-27

    Research output: Contribution to journalJournal articleCommunication

  48. 2001
  49. Published

    Coralline red algae (Corallinales, Rhodophyta) of the Faroe Islands

    Wegeberg, S., Nielsen, Ruth & Gunnarsson, K., 2001, In: Fródskaparrit - Annales Societatis Scientiarum Færoensis. 49, p. 37-43

    Research output: Contribution to journalJournal articleResearch

  50. Published

    Distribution of some marine benthic "small green algae" in Japan

    Nielsen, Ruth & Iima, M., 2001, Ikke angivet. International Phycological Society, p. 113-113 1 p. (Uden navn).

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearch

  51. Published

    List of BIOFAR 2 stations

    Sørensen, J., Bruntse, G., Gunnarsson, K. & Nielsen, Ruth, 2001, In: Frodskaparrit. 48, p. 61-85

    Research output: Contribution to journalJournal articleResearch

  52. Published

    Molecular and morphological evidence of heteromorphic life history in Blidingia (Ulvales, Chlorophyta)

    Iima, M., Hanyuda, T., Nielsen, Ruth & Ueda, K., 2001, Ikke angivet. International Phycological Society, p. 63-64 (Uden navn).

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearch

  53. Published

    Naturkvalitet på stenrev. Hvilke indikatorer kan vi bruge. Faglig rapport fra DMU, nr. 352.2001

    Dahl, K., Hansen, J., Helmig, S., Nielsen, Ruth & Larsen, H. S., 2001, Roskilde: National Environmental Research Institute. 130 p.

    Research output: Book/ReportReportResearch

  54. Published

    Seaweeds of the Faroe Islands. An annotated checklist

    Nielsen, Ruth & Gunnarsson, K., 2001, In: Fródskaparrit - Annales Societatis Scientiarum Færoensis. 49, p. 45-108

    Research output: Contribution to journalJournal articleResearchpeer-review

  55. Published

    The Bangiophyte Species of the Faroe Islands

    Brodie, J., Nielsen, Ruth & Gunnarsson, K., 2001, In: Fródskaparrit - Annales Societatis Scientiarum Færoensis. 49, p. 25-36

    Research output: Contribution to journalJournal articleResearchpeer-review

  56. Published

    The Danish Charophytes

    Nielsen, Ruth, 2001, In: Schriftenr. Landschaftspflege Naturschutz. 72, p. 37-38

    Research output: Contribution to journalJournal articleResearch

  57. Published

    Typification of Caulerpa cupressoides (Vahl) C. Agardh and C. taxifolia (Vahl) C. Agardh (Chlorophyta, Caulerpaceae)

    Nielsen, Ruth & Price, I. R., 2001, In: Taxon. 50, p. 827-836

    Research output: Contribution to journalJournal articleResearchpeer-review

  58. 1999
  59. Published

    Changes in the macroalgal flora on reefs in Danish waters

    Nielsen, Ruth, 1999, Changes in the marine flora of the North Sea. Scarborough: CERCI, University College Scarborough, p. 89-98

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  60. Published

    Danske havalger 2. Bestemmelsesnøgler til slægter af makroalger. Rødalger. Brunalger. Grønne alger

    Nielsen, Ruth, 1999, København: Miljø- og Energiministeriet/Skov- og Naturstyrelsen. 64 p.

    Research output: Book/ReportBookResearch

  61. Published

    Havplanter i Øresund

    Nielsen, Ruth, 1999, Öresund Naturligtvis. Smakprov på Sundets natur och miljö. Bentz, P-G. & Meyer, O. E. (eds.). København/Malmø: Öresund Naturligtvis, p. 51-54

    Research output: Chapter in Book/Report/Conference proceedingBook chapterCommunication

  62. Published

    Marine benthic algae and invertebrate communities from the shallow waters of the Faroe Islands

    Bruntse, G., Lein, T. E. & Nielsen, Ruth, 1999, Marine benthic algae and invertebrate communities from the shallow waters of the Faroe Islands. Torshavn, Færøerne: Natural History Museum, p. 1-117 117 p.

    Research output: Chapter in Book/Report/Conference proceedingReport chapterResearch

  63. Published

    New records of benthic marine algae for Norway, with notes on some rare species from the Florø district, western Norway

    Lein, T. E., Bruntse, G., Gunnarsson, K., Nielsen, Ruth & Wegeberg, S., 1999, In: Marine Biology Research. 84, p. 39-53 15 p.

    Research output: Contribution to journalJournal articleResearch

  64. Published

    Response to wave exposure by littoral species in the Faroe Islands

    Bruntse, G., Lein, T. E. & Nielsen, Ruth, 1999, In: Fródskaparrit - Annales Societatis Scientiarum Færoensis. 47, p. 181-198

    Research output: Contribution to journalJournal articleResearchpeer-review

  65. Published

    Review. Tolstoy,A. & Willén, T, (eds.) 1997. Preliminär checklista över makroalger i Sverige

    Nielsen, Ruth, 1999, In: Nordic Journal of Botany. 19, 2, p. 256-256 1 p.

    Research output: Contribution to journalReviewResearch

  66. 1998
  67. Published

    Nye registreringer av benthiske makroalger i Sogn og Fjordane

    Nielsen, Ruth, Wegeberg, S., Lein, T. E., Brattenborg, N., Bruntse, G. & Gunnarsson, K., 1998, Bergen, Norge: IFM Rapport.

    Research output: Book/ReportReportResearch

  68. Published

    Pain after groin hernia repair

    Callesen, T., Bech, K., Nielsen, Ruth, Andersen, J., Hesselfeldt, P., Roikjær, Ole & Kehlet, Henrik, 1998, In: British Journal of Surgery.

    Research output: Contribution to journalJournal articleResearchpeer-review

  69. Published

    Part of general key and Acrochaete-key

    Sears, J. R., Bird, C. J., Garrbary, D. J., Hare, J., Hehre, E., Hoek, C. V. D., Hooper, R. G., Mathieson, A. C., Nielsen, Ruth, Pedersen, P. M., Schneider, C. W., Steneck, R. S., Vadas, R. L., Villalard-Bohnsack, M. L. & Wilce, R. T., 1998, NEAS Key to the Benthic Marine Algae of the Northeastern Coast of North America from Long Island Sount to the Strait of Belle Isle. Massachusetts, U.S.A.: Northeast Algal Society (NEAS), p. 29-30, 39-42

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  70. 1997
  71. Published

    Book review: A Athanasiadis. Taxonomisk litteratur och biogeografi av skandinaviska roedalger och brunalger

    Nielsen, Ruth, 1997, In: European Journal of Phycology. 32, p. 315-316

    Research output: Contribution to journalJournal articleResearchpeer-review

  72. Published

    Macroalgae at Kims Top, a unique Danish stone reef in the midle of Kattegat

    Nielsen, Ruth, 1997, Phycologia 36 (4) Suppl.. p. 78-78 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearch

  73. Published

    Sexual and asexual strains of Blidingia minima from Northern Europe and Japan

    Nielsen, Ruth, Iima, M. & Rueness, J., 1997, Phycologia. Vol. 36 (4) Suppl.. p. 42-42 1 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearch

  74. Published

    Stenrev i Smålandsfarvandet Kirkegrund, Venegrunde og Ydergrund

    Nielsen, Ruth, Düwel, L. & Helmig, S., 1997, København: Skov- og Naturstyrelsen. 62 p.

    Research output: Book/ReportReportResearch

  75. 1995
  76. Published

    Distributional index of the benthic macroalgae of the Baltic Sea area

    Nielsen, Ruth, Kristiansen, A., Mathiesen, L. & Mathiesen, H., 1995, In: Acta Botanica Fennica. 155, p. 1-51

    Research output: Contribution to journalJournal articleResearch

  77. 1994
  78. Published

    Danske havalger, udbredelse og danske navne

    Nielsen, Ruth & Kristiansen, A., 1994, København: Hans Reitzels Forlag. 123 p.

    Research output: Book/ReportBookResearch

  79. Published

    New combinations within the genus Colaconema (Acrochaetiaceae, bangiophyceae)

    Nielsen, Ruth, 1994, In: Nordic Journal of Botany. 14, p. 715 1 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  80. Published

    Stenrev i Storebælt. Broen I, Broen II og Vengeance Grund

    Nielsen, Ruth, Düwel, L. & Helmig, S., 1994, København: Hans Reitzels Forlag. 71 p.

    Research output: Book/ReportReportResearch

  81. 1993
  82. Published

    An annotated list of marine algae collected on Lanzarote, Canary Islands, January 1986

    Nielsen, Ruth, Kristiansen, A. & Pedersen, P. M., 1 Jul 1993, In: Courier Forsch.-Inst. Senkenberg. 159, p. 93-102

    Research output: Contribution to journalJournal articleResearchpeer-review

  83. Published

    Algae Marinae Danicae Exsiccatae. A Museo Botanico Hauniensi Distributae, Fasc. II: 51-100

    Nielsen, Ruth, 1993, Botanisk Museum, København. 19 p.

    Research output: Book/ReportBookResearch

  84. 1992
  85. Published

    Macroalgae at Briseis Flak, Schultzs Grund and Store Middelgrund, stone reefs in the southern and eastern part of Kattegat, Denmark

    Nielsen, Ruth & Dahl, K., 1992, Proceedings of the 12th Baltic Marine Biologists Symposium. Fredensborg: Olsen, p. 109-118

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  86. Published

    Marine algae south of the island Vejrø, the Samsø area, Denmark

    Nielsen, Ruth & Dahl, K., 1992, In: Acta Phytogeographica Suecica. 78, p. 111-116

    Research output: Contribution to journalJournal articleResearchpeer-review

  87. Published

    Review. Elsie M. Burrows. 1991. Seaweeds of the British Isles. Vol. 2. Chlorophyta. xi + 238 pp. British Museum (Natural History), London

    Nielsen, Ruth, 1992, In: Nordic Journal of Botany. 12, 2 p.

    Research output: Contribution to journalReviewResearch

  88. 1991
  89. Published

    Lysegrund, et stenrev i den sydlige del af Kattegat, algevegetation, august 1990

    Nielsen, Ruth, Helmig, S. & Hygum, B., 1991, Hørsholm, Danmark: Miljøministeriet. 51 p.

    Research output: Book/ReportReportResearch

  90. Published

    Vegetation of Tønneberg Banke, a stone reef in the northern Kattegat, Denmark

    Nielsen, Ruth, 1991, In: Oebalia, International J. of Marine Biology and Oceanography. 27, p. 199-211

    Research output: Contribution to journalJournal articleResearch

  91. 1990
  92. Published

    Algae Marinae Danicae Exsiccatae. A Museo Botanico Hauniensi Distributae, Fasc. I: 1-50

    Nielsen, Ruth, 1990, Botanisk Museum, København. 19 p.

    Research output: Book/ReportBookResearch

  93. Published

    Makroalger

    Nielsen, Ruth, 1990, Naturovervågning: Naturen i Havet. Norden Andersen, O. G. (ed.). Hørsholm: Miljøministeriet, Skov- og Naturstyrelsen, Vol. 90. p. 56-59

    Research output: Chapter in Book/Report/Conference proceedingBook chapterCommunication

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