Background and activities

Assosiate professor at NTNU University Museum since 2006, and I was Head of Department (Department of Natural History) 2010-2018.

My research interests are in systematics and biogeography of marine invertebrates, particularly of polychaete worms (Polychaeta) and sea slugs (Nudibranchia). The main interest is in phylogeny, taxonomy and distribution, but I do also have a broad interest in faunistics and biodiversity of marine invertebrates in general, in Norwegian waters, coastal as well as deep-sea. Part of my research is linked to NTNU's strategic thematic area Ocean Science and Technology, and the AUR-lab.

I am currently teaching in the courses "Faunistics and floristics" (BI1002) (marine part), "Marine biodiversity" (BI2036) and "Enabling tehcnology for marine studies (BI3070). I supervise master and PhD students in systematics and in marine biology, the latter often as a part of the AUR-lab.

Scientific collections
I am senior curator and responsible for the Museum's collections of marine invertebrates.

Current research projects:

Links: - flerbørstemark - nakensnegler i Norge

Scientific, academic and artistic work

Displaying a selection of activities. See all publications in the database


  • Bakken, Torkild; Glasby, Christopher J.; Santos, Cinthya S. G.; Wilson, Robin S.. (2022) Nereididae Blainville, 1818. Handbook of Zoology. Annelida. Volume 4 Pleistoannelida, Errantia II.
  • Capa, Maria; Bakken, Torkild; Purschke, Günter. (2022) 7.13.14 Sphaerodoridae Malmgren, 1867. Handbook of Zoology. Annelida. Volume 4 Pleistoannelida, Errantia II.













  • Oug, Eivind; Gjøsæter, Jakob; Anker-Nilssen, Tycho; Bakken, Torkild; Sneli, Jon-Arne; Rueness, Jan. (2010) Marine environments. Environmental conditions and impacts for red list species.
  • Bakken, Torkild; Kongsrud, Jon Anders; Oug, Eivind; Cochrane, Sabine; Moen, Toril Loennechen; Solbakken, Beata Elisabeth Borowiec. (2010) Polychaetes from Jan Mayen (Annelida, Polychaeta). Polar Research. vol. 29 (1).
  • Schander, Christoffer; Rapp, Hans Tore; Kongsrud, Jon Anders; Bakken, Torkild; Berge, Jørgen; Cochrane, Sabine; Oug, Eivind; Byrkjedal, Ingvar; Todt, Christiane; Cedhagen, Tomas; Fosshagen, Audun; Gebruk, Andrey; Larsen, Kim; Levin, Lisa; Obst, Matthias; Pleijel, Fredrik; Stöhr, Sabine; Warén, Anders; Mikkelsen, Nina Therese; Hadler-Jacobsen, Silje Hope; Keuning, Rozemarijn; Petersen, Kristin Heggøy; Thorseth, Ingunn Hindenes; Pedersen, Rolf-Birger. (2010) The fauna of hydrothermal vents on the Mohn Ridge (North Atlantic). Marine Biology Research. vol. 6 (2).




  • Kålås, John Atle; Viken, Åslaug; Bakken, Torkild. (2006) Norsk Rødliste 2006 - 2006 Norwegian Red List. 2006. ISBN 82-92838-00-7.



  • Bakken, Torkild. (2004) A revision of Nereidinae (Polychaeta, Nereididae). 2004. ISBN 82-471-6205-9.


  • Bakken, Torkild. (2003) Redescription and resurrection of Typhlonereis gracilis Hansen, 1879 (Polychaeta, Nereididae). Sarsia. vol. 88 (5).
  • Wilson, Robin S.; Bakken, Torkild. (2003) Sphaerodoridae (Polychaeta)�A DELTA database of genera, and Australian species. In RS Wilson, PA Hutchings & GJ Glasby (eds) Polychaetes: Interactive identification and information retrieval.
  • Wilson, Robin S.; Bakken, Torkild; Glasby, Christopher J.. (2003) Nereididae (Polychaeta)�A DELTA database of genera, and Australian species. In RS Wilson, PA Hutchings & CJ Glasby (eds) Polychaetes: Interactive identification and information retrieval.



  • Bakken, Torkild. (2001) Sjøstjernen Brisinga endecacnemos i Norge, og dens oppdager - P. Chr. Asbjørnsen. Fauna. vol. 54 (1).


  • Bakken, Torkild. (1999) A catalogue of the type specimens of protozoans, invertebrates and fish in the Museum of Natural History and Archaeology, NTNU. Gunneria. vol. 74.
  • Mancini, Ines; Guerriero, Antonio; Guella, Graziano; Bakken, Torkild; Zibrowius, Helmut; Pietra, Francesco. (1999) Novel 10-hydroxydocosapolyenoic acids from deep-water scleractinian corals. Helvetica Chimica Acta. vol. 82.


  • Bakken, Torkild. (1997) Systematikken til Nereididae og Sphaerodoridae (Polychaeta: Annelida) og deres geografiske utbredelse i norske og tilstøtende arktiske farvann. 1997.