Hjem
Inga Kjersti Sjøtuns bilde

Inga Kjersti Sjøtun

Professor
  • E-postKjersti.Sjotun@uib.no
  • Telefon+47 55 58 44 28
  • Besøksadresse
    Thormøhlens gate 53 A/B
  • Postadresse
    Postboks 7803
    5020 Bergen

My research is on seaweeds. Seaweeds are very important primary producers in the coastal area, they form habitats for myriads of associated animals, they can function as devices for measuring levels of heavy metals in the environment, and they can be harvested or cultured for food or valuable biochemical components such as agar and alginate. My main interests are seaweed ecology, and how seaweeds evolve and adapt to the environment. Some of the topics I study:

-        Evolution, morphological variation and speciation processes in the genus Fucus

-        Effects of invasive seaweeds on indigenous coastal communities

-        Changes in seaweed communities due to environmental impact and climate changes

BIO309A Marin floristikk

BIO311 Systematikk og biologi til alger

BIO101 Organismebiologi 1

Vitenskapelig artikkel
  • Vis forfatter(e) 2020. Fremmede arter i Norge: resultater fra kvantitative økologiske risikovurderinger. Ecological Solutions and Evidence. 12 sider.
  • Vis forfatter(e) 2019. Alien plants, animals, fungi and algae in Norway: an inventory of neobiota. Biological Invasions. 2997-3012.
  • Vis forfatter(e) 2019. A field study of the edible red alga Vertebrata lanosa (Rhodophyta). Journal of Applied Phycology. 1-11.
  • Vis forfatter(e) 2019. A DNA barcode survey of marine macroalgae from Bergen (Norway). Marine Biology Research. 580-589.
  • Vis forfatter(e) 2017. Unravelling the complexity of salt marsh ‘Fucus cottonii’ forms (Phaeophyceae, Fucales). European journal of phycology. 360-370.
  • Vis forfatter(e) 2017. Growth and competition in a warmer ocean: A field experiment with a non-native and two native habitat-building seaweeds. Marine Ecology Progress Series. 85-99.
  • Vis forfatter(e) 2017. Characterization and seasonal variation of individual flavonoids in Zostera marina and Zostera noltii from Norwegian coastal waters. Biochemical Systematics and Ecology. 42-50.
  • Vis forfatter(e) 2017. Can an old alien benefit from rising ocean temperatures? An experimental and field study on the growth and local distribution of Codium fragile subsp. fragile (Chlorophyta). Marine Biology.
  • Vis forfatter(e) 2016. Epiphytic macroalgae mediate the impact of a non-native alga on associated fauna. Hydrobiologia. 35-49.
  • Vis forfatter(e) 2016. Dasya adela sp. nov. (Rhodophyta, Ceramiales), an enigmatic new Dasya from a landlocked fjord in southwest Norway. Phycological Research. 79-94.
  • Vis forfatter(e) 2016. Codium fragile in Norway: subspecies identity and morphology. Botanica Marina. 439-450.
  • Vis forfatter(e) 2015. Climatic and environmental factors influencing occurrence and distribution of macroalgae – a fjord gradient revisited. Marine Ecology Progress Series. 73-88.
  • Vis forfatter(e) 2014. Regional impact from fin-fish farming in an intensive production area (Hardangerfjord, Norway). Marine Biology Research. 241-252.
  • Vis forfatter(e) 2014. Historical changes in macroalgal communities in Hardangerfjord (Norway). Marine Biology Research. 226-240.
  • Vis forfatter(e) 2014. Correlative evidence for competition between fucus serratus and the introduced chlorophyte codium fragile subsp. fragile on the southwest coast of norway. Botanica Marina. 85-97.
  • Vis forfatter(e) 2012. Bacterial diversity in relation to secondary production and succession on surfaces of the kelp Laminaria hyperborea. The ISME Journal. 2188-2198.
  • Vis forfatter(e) 2011. Utilization of kelp-derived carbon sources by kelp surface-associated bacteria. Aquatic Microbial Ecology. 191-199.
  • Vis forfatter(e) 2011. Does the amphipod fauna associated with epiphytes on kelp (Laminaria hyperborea) change with depth? Marine Biology Research. 224-234.
  • Vis forfatter(e) 2011. Differential concentration of Technetium-99 (99Tc) in common intertidal molluscs with different food habits. Marine Pollution Bulletin. 2420-2426.
  • Vis forfatter(e) 2010. Technetium-99 (Tc-99) in annual growth segments of knotted wrack (Ascophyllum nodosum). Science of the Total Environment. 5575-5582.
  • Vis forfatter(e) 2010. Seasonal dynamics of bacterial biofilms on the kelp Laminaria hyperborea. Aquatic Microbial Ecology. 71-83.
  • Vis forfatter(e) 2010. Multi-trophic consequences of kelp harvest. Biological Conservation. 2054-2062.
  • Vis forfatter(e) 2008. Present distribution and possible vectors of introductions of the alga Heterosiphonia japonica (Ceramiales, Rhodophyta) in Europe. Aquatic Invasions. 389-406.
  • Vis forfatter(e) 2008. Changes of macroalgal biodiversity in sublittoral sites in southwest Norway: impact of an introduced species or higher temperature? Marine Biology Research. 414-428.
  • Vis forfatter(e) 2008. Being abundant is not enough: a decrease in effective population size over eight generations in a Norwegian population of the seaweed, Fucus serratus. Biology Letters. 755-757.
  • Vis forfatter(e) 2007. Grazer-controlled recruitment of the introduced Sargassum muticum (Phaeophyceae, Fucales) in northern Europe. Marine Ecology Progress Series. 127-138.
  • Vis forfatter(e) 2007. First report of the Japanese red alga Antithamnion nipponicum (Ceramiales, Rhodophyta) in Norway, an invasive species new to northern Europe. Aquatic Invasions. 431-434.
  • Vis forfatter(e) 2006. Vegetative reproduction in "Heterosiphonia japonica" (Dasyaceae, Ceramiales), an introduced red alga on European coasts. Botanica Marina. 191-199.
  • Vis forfatter(e) 2006. The combined effect of canopy shading and sea urchin grazing on recruitment in kelp forest (Laminaria hyperborea). Marine Biology Research. 24-32.
  • Vis forfatter(e) 2005. Demographic variation in the kelp Laminaria hyperborea along a latitudinal gradient. Marine Biology. 1051-1062.
  • Vis forfatter(e) 2004. The newly introduced species Heterosiphonia japonica Yendo (Dasyaceae, Rhodophyta): geographical distribution and abundance at the Norwegian southwest coast. Sarsia. 211-218.
  • Vis forfatter(e) 2004. The newly introduced species Heterosiphonia japonica Yendo (Dasyaceae, Rhodophyta): geographical distribution and abundance at the Norwegian southwest coast. Sarsia. 211-217.
Rapport
  • Vis forfatter(e) 2017. Assessment of the risks associated with the import and release of hand-reared mallards for hunting purposes. Opinion of the Panel on Alien Organisms and Trade in Endangered Species (CITES) of the Norwegian Scientific Committee for Food Safety. 2017:23. 2017:23. .
  • Vis forfatter(e) 2017. Assessment of the potential connection between Tilia trees and bumblebee Death. Opinion of the Panel on Alien organisms and trade in endangered species (CITES) of the Norwegian Scientific Committee for Food Safety. 2017:15. 2017:15. .
  • Vis forfatter(e) 2016. Assessment of the risks to Norwegian biodiversity from the import and keeping of terrestrial arachnids and insects. Opinion of the Panel on Alien Organisms and Trade in Endangered species of the Norwegian Scientific Committee for Food Safety. 2016:36. 2016:36. .
  • Vis forfatter(e) 2016. Assessment of the risks to Norwegian biodiversity from the import and keeping of aquarium and garden pond plants. Opinion of the Panel on Alien Organisms and Trade in Endangered Species (CITES) of the Norwegian Scientific Committee for Food Safety. 2016:50. 2016:50. .
  • Vis forfatter(e) 2016. Assessment of species listing proposals for CITES CoP17. Opinion of the Panel on Alien Organisms and Trade in Endangered Species (CITES) of the Norwegian Scientific Committee for Food Safety. 2016:38. 2016:38. .
  • Vis forfatter(e) 2015. Risikovurdering ved utseting av ikke-stedegen tare. .
  • Vis forfatter(e) 2013. Utvikling av indikatoren «sårbare og truete arter» for Nordsjøen, Norskehavet og Barentshavet. En oversikt over forekomst og kunnskapsgrunnlag for truete arter og ansvarsarter i norske sjøområder. 6509. 6509. .
  • Vis forfatter(e) 2012. Kartlegging av fremmede marine arter i Hordaland. 2. 2. .
  • Vis forfatter(e) 2011. Vurdering av eutrofisituasjonen i kystområder, med særlig fokus på Hardangerfjorden og Boknafjorden. .
  • Vis forfatter(e) 2004. Biomass survey of Laminaria digitata in the Smøla area. 2004-11. 2004-11. .
Faglig foredrag
  • Vis forfatter(e) 2019. MACROSEA - A knowledge Platform for Industrial Macroalgae Cultivation.
  • Vis forfatter(e) 2018. Taredyrking – en næring i vekst.
Vitenskapelig foredrag
  • Vis forfatter(e) 2004. Population structure of Laminaria digitata (Hudson) J.V. Lamouroux from three different areas in the Northeast Atlantic Ocean.
Leder
  • Vis forfatter(e) 2014. Interactions between salmon farming and the ecosystem: Lessons from the Hardangerfjord, western Norway. Marine Biology Research. 199-202.
  • Vis forfatter(e) 2011. Norwegian fjords: from natural history to ecosystem ecology and beyond. Marine Biology Research. 421-424.
  • Vis forfatter(e) 2011. Norwegian fjords: From natural history to ecosystem ecology and beyaond. Marine Biology Research. 421-424.
Vitenskapelig antologi/Konferanseserie
  • Vis forfatter(e) 2018. Marine Ecological Field Methods - A guide for marine biologists and fisheries scientists. John Wiley & Sons.
Hovedfagsoppgave
  • Vis forfatter(e) 2005. Opptak og lagring av ammonium hos Fucus serratus (L.) og Cladophora rupestris (L.) Kütz.
Mastergradsoppgave
  • Vis forfatter(e) 2007. Does the composition of amphipods associated to epiphytes on kelp (Laminaria hyperborea) change with depth?
  • Vis forfatter(e) 2006. The survival and viability of Saccharina latissima ((L.) Lane, Mayes, Druehl et Saunders) spores and microscopic sporophytes in temperatures of 18-22°C.
Database
  • Vis forfatter(e) 2020. Data from: Ecological impact assessments of alien species in Norway.
Doktorgradsavhandling
  • Vis forfatter(e) 2017. Codium fragile subsp. fragile and Sargassum muticum: Non-native seaweeds in a changing environment.
  • Vis forfatter(e) 1995. Adaptive aspects of growth and reproduction in two North Atlantic Laminaria species. -Dr. scient. Thesis.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Vis forfatter(e) 2018. The marine Environment. 31 sider.
  • Vis forfatter(e) 2018. Sorting specimens and preserving materials. 30 sider.
  • Vis forfatter(e) 2018. Sampling gears and equipment. 46 sider.
  • Vis forfatter(e) 2018. Planning marine field studies. 41 sider.
  • Vis forfatter(e) 2018. Data analysis. 57 sider.
  • Vis forfatter(e) 2006. Alger - Cynanophyta, Rhodophyta, Phaeophyceae, Ulvophyceae, Charophyceae. 8 sider.
Sammendrag/abstract
  • Vis forfatter(e) 2009. GENETIC SEPARATION OF DIFFERENT ENTITIES OF MASTOCARPUS STELLATUS (STACKHOUSE) GUIRY. Phycologia. 121-122.
Poster
  • Vis forfatter(e) 2016. Analysis of Flavonoids in the Seagrass Zostera Marina L.
Faglig kapittel
  • Vis forfatter(e) 2015. Alger Cyanophyta, Rhodophyta, Chlorophyta, Ochrophyta. . I:
    • Vis forfatter(e) 2015. Norsk rødliste for arter 2015. Versjon 1.2.
  • Vis forfatter(e) 2010. Alger: Cyanophyta, rhodophyta, chlorophyta, ochrophyta. 79-86. I:
    • Vis forfatter(e) 2010. Norsk rødliste for arter 2010. The 2010 Norwegian Red List for Species. Artsdatabanken.

Se fullstendig oversikt over publikasjoner i CRIStin.

Bringloe TT, Sjøtun K, Saunders GW (2019). A DNA barcode survey of marine macroalgae from Bergen (Norway). Marine Biology Researchhttps://doi.org/10.1080/17451000.2019.1699659

Bjordal MV, Jensen KH, Sjøtun K (2019). A field study of the edible red alga Vertebrata lanosa (Rhodophyta). Journal of Applied Phycology in press.

Enerstvedt KH, Lundberg A, Sjøtun IK, Fadnes P, Jordheim M (2017). Characterization and seasonal variation of Individual flavonoids in Zostera marina and Zostera noltii from Norwegian coastal waters. Biochemical Systematics and Ecology 74: 42-50

Armitage CS, Sjøtun K (2017). Can an old alien benefit from rising ocean temperatures? An experimental and field study on the growth and local distribution of Codium fragile subsp. fragile (Chlorophyta). Marine Biology DOI 10.1007/s00227-017-3170-5

Armitage CS, Husa V, Petelenz-Kurdziel EA, Sjøtun K (2017). Growth and competition in a warmer ocean: A field experiment with a non-native and two native habitat building seaweeds. Marine ecology Progress Series 573: 85–99

Sjøtun K, Heesch S, Rull Lluch J, Martín Martín R, Gómez Garreta A, Brysting AK, Coyer JA (2017). Unraveling the complexity of salt marsh "Fucus cottonii" forms (Phaeophyceae, Fucales). European Journal of Phycology   doi.org/10.1080/09670262.2017.1309688

Armitage CS, Sjøtun K (2016). Codium fragile in Norway: Subspecies identity and morphology. Botanica Marina 56: 439–450

Sjøtun K, Heggøy E, Gabrielsen TM, Rueness J (2016). Dasya adela sp. nov. (Rhodophyta, Ceramiales), an enigmatic new Dasya from a landlocked fjord in southwest Norway. Phycological Research 64: 79-94

Armitage CS, Sjøtun K (2016). Epiphytic macroalgae mediate the impact of a non-native alga on associated fauna. Hydrobiologia DOI 10.1007/s10750-016-2707-9

Sjøtun K, Husa V, Asplin L, Sandvik AD (2015). Climatic and environmental factors influencing occurrence and distribution of macroalgae – a fjord gradient revisited. Marine Ecology – Progress Series 532: 73-88 

Armitage C, Sjøtun K, Jensen KH (2014). Correlative evidence for competition betweenFucus serratus and the introduced chlorophyte Codium fragile subsp. fragile on the southwest coast of Norway. Botanica Marina 57: 85-97

Husa V, Steen H, Sjøtun K (2014). Historical changes in macroalgal communities in Hardangerfjord (Norway). Marine Biology Research 10: 226-240

Husa V, Kutti T, Ervik A, Sjøtun K, Kupka Hansen P, Aure J (2014). Regional impact from fin-fish farming in an intensive production area (Hardangerfjord, Norway). Marine Biology Research 10: 241-252

Bengtsson MM, Sjøtun K, Lanzén A & Øvreås L (2012). Bacterial diversity in relation to secondary production and succession on surfaces of the kelp Laminaria hyperborea. The ISME Journal 6: 2188-2198

Sjøtun K, Heldal HE, Brakstad, DS (2011). Differential concentration of Technetium-99 (99Tc) in common intertidal molluscs with different food habits. Marine Pollution Bulletin 62:2420-2426

Brattegard T, Høisæter T, Sjøtun K, Fenchel T & Uiblein F (2011). Norwegian Fjords: from Natural History to Ecosystem Ecology and beyond. Marine Biology Research 7: 421-424 (editorial note).

Eilertsen M, Norderhaug KM & Sjøtun K (2011). Does the amphipod fauna associated to epiphytes on kelp (Laminaria hyperborea) change with depth? Marine Biology Research 7: 224-234

Bengtsson MM, Sjøtun K, Storesund JE& Øvreås L (2011). Utilization of kelp-derived carbon sources by kelp surface-associated bacteria. Aquatic Microbial Ecology 62: 191-199

Heldal HE & Sjøtun K (2010). Technetium-99 (99Tc) in annual growth segments of knotted wrack (Ascophyllum nodosum). Science of the Total Environment 408: 5575-5582

Lorentsen S-H, Sjøtun K & Grémillet D (2010). Multi-trophic consequences of kelp harvest. Biological Conservation 143: 2054-2062

Bengtsson M, Sjøtun K & Øvreås L (2010). Seasonal dynamics of bacterial biofilms on kelp (Laminaria hyperborea). Aquatic Microbial Ecology 60: 71-83

Coyer J, Hoarau G, Sjøtun K & Olsen JL (2008). Being abundant is not enough: a decrease in effective population size over eight generations in a Norwegian population of the seaweed, Fucus serratus. Biology Letters 4: 755-757

Sjøtun K, Husa V & Peña V (2008). Present distribution and possible vectors of introductions of the alga Heterosiphonia japonica (Ceramiales, Rhodophyta) in Europe. Aquatic Invasions 3: 377-394

Husa V, Sjøtun K, Brattenborg N & Lein TE (2008). Changes of macroalgal biodiversity in sublittoral sites in southwest Norway: impact of an introduced species or higher temperature? Marine Biology Research 4: 414-428

Rueness J, Heggøy E, Husa V & Sjøtun K (2007). First report of the Japanese red alga Antithamnion nipponicum (Ceramiales, Rhodophyta) in Norway, an invasive species new to northern Europe. Aquatic invasions 2: 431-434 (Short communication).

Sjøtun K, Eggereide SF & Høisæter T (2007). Grazer-controlled recruitment of the introduced Sargassum muticum (Phaeophyceae, Fucales) in northern Europe. Marine Ecology Progress Series 342: 127-138. 

Husa V & Sjøtun K (2006). Vegetative reproduction in "Heterosiphonia japonica" (Dasyaceae, Ceramiales), an introduced red alga on European coasts. Botanica Marina 49: 191-199

Sjøtun K, Christie H & Fosså JH (2006). The combined effect of canopy shading and sea urchin grazing on recruitment in kelp forest (Laminaria hyperborea). Marine Biology Research 2: 24-32. 

Rinde E & Sjøtun K (2005). Demographic variation in the kelp Laminaria hyperborea along a latitudinal gradient. Marine Biology 146: 1051-1062

Husa V, Sjøtun K & Lein TE (2004). The newly introduced species Heterosiphonia japonica Yendo (Dasyaceae, Rhodophyta): geographical distribution and abundance at the Norwegian southwest coast. Sarsia 89: 211-217

Sjøtun K & Schoschina EV (2002). Gametophytic development of Laminaria spp. (Laminariales, Phaeopyceae) at low temperature. Phycologia 41: 147-152

Nettverket "Norwegian seaweeds": http://seaweeds.uib.no

INVASIVES, Seas-era prosjekt 2013-2016: http://invasives.b.uib.no/

 

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