Stein Fredriksen
Publikasjoner
Vitenskapelige artikler (NVI)
2021
Large-scale salmon farming in Norway impacts the epiphytic community of Laminaria hyperborea
Aquaculture Environment Interactions
13
p. 81-100
2020
Carbon export is facilitated by sea urchins transforming kelp detritus
Oecologia
192
p. 213-225
2020
Alien species in Norway: Results from quantitative ecological impact assessments
Ecological Solutions and Evidence
1
2020
Kelp-carbon uptake by Arctic deep-sea food webs plays a noticeable role in maintaining ecosystem structural and functional traits
Journal of Marine Systems
203
2020
Detrital carbon production and export in high latitude kelp forests
Oecologia
192
p. 227-239
2020
Green gravel: a novel restoration tool to combat kelp forests decline
Scientific Reports
10
p. 1-7
2020
DNA barcoding and mucilage ducts in the stipe reveal the presence of Hedophyllum nigripes (Laminariales, Phaeophyceae) in Kongsfjorden (Spitsbergen)
Journal of Phycology
56
p. 1245-1254
2020
Marine heatwaves and the collaps of marginal North Atlantic kelp forests
Scientific Reports
10
2019
Arctic kelp forests: Diversity, resilience and future
Global and Planetary Change
172
p. 1-14
2019
Efficient coralline algal psbA mini barcoding and High Resolution Melt (HRM) analysis using a simple custom DNA preparation
Scientific Reports
9
2019
Genetic heterogeneity of two bioeconomically important kelp species along the Norwegian coast
Conservation Genetics
20
p. 615-628
2019
The Abundance of Kelp Is Modified by the Combined Impact of Depth, Waves and Currents
Frontiers in Marine Science
6
2019
Alien plants, animals, fungi and algae in Norway: an inventory of neobiota
Biological Invasions
21
p. 2997-3012
2019
Geographic variation in fitness-related traits of the bladderwrack Fucus vesiculosus along the Baltic Sea – North Sea salinity gradient
Ecology and Evolution
9
p. 9225-9238
2017
The impact of the kelp (Laminaria hyperborea) forest on the organic matter content in sediment of the west coast of Norway
Marine Biology Research
13
p. 151-160
2017
Utslipp av partikulære og løste stoffer fra matfiskanlegg
Fisken og Havet, Særnummer
p. 99-116
2016
Changes in kelp forest biomass and depth distribution in Kongsfjorden, Svalbard, between 1996–1998 and 2012–2014 reflect Arctic warming
Polar Biology
39
p. 2021-2036
2016
A snap shot of the short-term response of crustaceans to macrophyte detritus in the deep Oslofjord
Scientific Reports
6
2016
Status, trends and drivers of kelp forests in Europe: an expert assessment
Biodiversity and Conservation
25
p. 1319-1348
2016
Small-scale removal of seagrass (Zostera marina L.): effects on the infaunal community
Marine Biology Research
12
p. 993-1002
2016
Reseña de proyecto: Coralalg, la biodiversidad marina oculta en noruega: búsqueda de especies crípticas en algas rojas coralinas (Norway's hidden marine biodiversity: the hunt for cryptic species within the coralline algae).
Algas: Boletín Informativo de la Sociedad Española de Ficología
52
p. 55-58
2015
Population dynamics of Strongylocentrotus droebachiensis in kelp forests and barren grounds in Norway
Marine Biology
162
p. 1215-1226
2015
Biodiversity mediates top-down control in eelgrass ecosystems: a global comparative-experimental approach
Ecology Letters
18
p. 696-705
2015
Benthic algal vegetation in Isfjorden, Svalbard
Polar Research
34
p. 1-9
2014
Distribution, structure and function of Nordic eelgrass (Zostera marina) ecosystems: Implications for coastal management and conservation
Aquatic conservation
24
p. 410-434
2014
The exudation of nitrate by the kelp Laminaria hyperborea, an observation during in situ incubation experiments
Marine Biology Research
10
p. 725-730
2014
Predators of the destructive sea urchin grazer Strongylocentrotus droebachiensis on the Norwegian coast
Marine Ecology Progress Series
502
p. 207-218
2014
New additions to the benthic marine flora of Kongsfjorden, western Svalbard, and comparison between 1996/1998 and 2012/2013
Botanica Marina
57
p. 203-216
2014
Sub-canopy light conditions only allow low annual net productivity of epiphytic algae on kelp Laminaria hyperborea
Marine Ecology Progress Series
516
p. 163-176
2012
Effects of wave exposure on population structure, demography, biomass and productivity of the kelp Laminaria hyperborea
Marine Ecology Progress Series
451
p. 45-60
2012
The algal vegetation in the outer part of Isfjorden, Spitsbergen: revisiting Per Svendsen's sites 50 years later
Polar Research
31
2011
Seasonal Patterns of Sporophyte Growth, Fertility, Fouling, and Mortality of Saccharina latissima in Skagerrak, Norway: Implications for Forest Recovery
Journal of Marine Biology
2011
2010
Infauna from Zostera marina L. meadows in Norway. Differences in vegetated and unvegetated areas
Marine Biology Research
6
p. 189-200
2009
Macrophytes as habitat for fauna
Marine Ecology Progress Series
396
p. 221-233
2008
Trophic studies in a high-latitude fjord ecosystem - a comparison of stable isotope analyses (delta 13C and delta 15N)and trophic-level estimates from a mass-balance model
Canadian Journal of Fisheries and Aquatic Sciences
65
p. 2791-2806
2008
Trophic studies in a high-latitude fjord ecosystem – a comparison of stable isotope analyses (δ13C and δ15N) and trophic-level estimates from a mass-balance model
Canadian Journal of Fisheries and Aquatic Sciences
65
p. 2791-2806
2007
Isotopic and elemental indicators of nutrient sources and status of coastal habitats in the Caribbean Sea, Yucatan Peninsula, Mexico
Estuarine, Coastal and Shelf Science
74
p. 449-457
2007
Is habitat size an important factor for faunal abundances on kelp (Laminaria hyperborea)?
Journal of Sea Research
58
p. 120-124
2006
Importance of phlorotannin content and C:N ratio of Laminaria hyperborea in determining its palatability as food for consumers
Marine Biology Research
2
p. 367-371
2005
Fish - macrofauna interactions in a kelp (Laminaria hyperborea) forest
Journal of the Marine Biological Association of the United Kingdom
85
p. 1279-1286
2005
Species richness in macroalgae and macrofauna assemblages on Fucus serratus L. (Phaeophyceae) and Zostera marina L. (Angiospermae) in Skagerrak, Norway
Marine Biology Research
1
p. 2-19
2004
Production, respiration, and exudation of dissolved organic matter by the kelp Laminaria hyperborea along the west coast of Norway
Journal of the Marine Biological Association of the United Kingdom
84
p. 887-894
2004
Deterioration of eelgrass (Zostera marina L.) through destructive grazing by the gastropod Rissoa membranacea (J. Adams)
Sarsia
89
p. 218-222
2003
Food web studies in a Norwegian kelp forest based on stable isotope (?13C and ?15N) analysis
Marine Ecology Progress Series
260
p. 71-81
2003
Epiphytes on the invasive species Sargassum muticum at Verdens Ende, South Norway
Sarsia
88
p. 353-364
2003
The trophic importance of Laminaria hyperborea to kelp forest consumers and the importance of bacterial degradation on food value
Marine Ecology Progress Series
255
p. 135-144
2003
Zostera marina (Angiospermae) and Fucus serratus (Phaeophyceae) as habitat for flora and fauna � seasonal and local variation
Proceedings / International Seaweed Symposium
17
p. 357-364
2002
Seaweeds in cold seas: evolution and carbon acquisition
Annals of Botany
90
p. 525-536
2002
Mecanistic interpretation of carbon isotope discrimination by marine macroalgae and seagrasses
Functional Plant Biology
29
p. 355-378
1998
Effect of canopy biomass and wave exposure on growth in Laminaria hyperborea (Laminariaceae: Phaeophyta)
European journal of phycology
33
p. 337-343
1998
Intraspecific reproductive variation in Gelidium pusillum (Stackhouse) Le Jolis (Gelidiales, Rhodophyta) from Norway
Journal of Applied Phycology
10
p. 253-260
Annet tidsskriftbidrag
2016
Are skeletal ossicles in echinoids unreliable chronometers? Reply to Russell and Narváez comment on “Population dynamics of Strongylocentrotus droebachiensis in kelp forests and barren grounds in Norway” by Fagerli et al. 2015
Marine Biology
163
p. 160-161
Faglige foredrag
2021
COASTFRAG - Effekter av fragmentering og tap av habitater på økosystemer i kystsonen og betydningen for b ærekraftig forvaltning i en verden i endring
2021
COASTFRAG – Impact of habitat fragmentation and loss on coastal ecosystems and implications for sustainable management under climate change
2019
Added values from the large-scale and long-lasting program for mapping marine habitats
2019
De allestedsnærværende kalkalgene - et svært, rosa kunnskapshull langs norskekysten?
2019
Mer mat fra havet?
2018
Factors affecting Saccharina latissima, concerning growth, recruitment and competition.
2017
Arctic warming affects kelp forest with associated fauna in Kongsfjorden, Svalbard
2017
Retreating sea ice in coastal systems – Implications for seaweed communities in Kongsfjorden (Svalbard) and beyond
2015
How can kelp and seagrass beds persist being both food and habitat?
2015
Regime shifts in Norwegian kelp forests
2015
Seaweed Biology in a changing Arctic
2015
Changes in kelp forest biomass and depth distribution in Kongsfjorden (Spitsbergen) reflect Arctic warming
2013
Climate Change and Large Scale shifts in the Geographical Distribution of NE Atlantic Kelp Forests
2013
Climate Change and Large Scale shifts in the Geographical Distribution of NE Atlantic Kelp Forests
2013
RIGHT OR WRONG CONCLUSION? THE IMPORTANCE OF EQUAL PRECISIONS LEVEL IN BIODIVERSITY STUDIES
2012
Spatial distribution of epiphytes and mobile fauna on Zostera marina (L.) and Fucus serratus (L.) from the Skagerrak area
2012
European Marine Biology Symposium
2012
Importance of climate and predation for shifts between sea urchin dominated barren grounds and kelp forests
2012
Bentosalgevegetasjonen på Svalbard
2011
The algal vegetation in the outer part of Isfjorden, Spitsbergen: a revisit of Per Svendsens sites after 50 years
2010
Biodiversitet i tareskog
2009
Stortare fra A til Å
2008
Tang og tare i Nord
2006
Kelp associated epiphytes and their level of biomass production in relation to wave-exposure and season
2005
Tareskogsforskningen i MARE
2002
Biodiversitet i makrofyttsamfunn. Variasjon i tid og rom
2002
Kelp forest in Western Norway
2002
Produksjon av partikulært materiale fra stortare. Mulig næringskilde for krepsdyr i tareskogen?
2000
The coast of Norway
2000
Norwegian history
1999
Food chain studies in a Norwegian kelp forest based on stable carbon isotope analysis
Poster
2019
Growth of two red algae species Palmaria palmata and Vertebrata lanosa in lab culture
2019
Exploring the Saccharina latissima microbiome
2018
Norways hidden marine biodiversity: the hunt for cryptic species within the coralline algae
2015
Population genetic diversity and structure of two kelp species (Laminariales) in Norway
2015
Seasonal variations of fish fauna in two Zostera marina meadows in the inner Oslofjord
2015
Genetic tools reveal diversity and structure of kelp forests in Norway
2013
Algal culture collection at the University of Oslo
2013
Benthic communities at the opera in Bjørvika
2011
Effects of disturbance on the abundance and composition of infauna in Zosera marina L. communities
2011
What is replacing the sugar kelp in Skagerrak?
2009
Manipuleringer i fjæra i indre Oslofjord
2009
Temperaturtoleranser hos forskjellige isolater av sukkertare
2008
Overvåking av fotosyntetisk effektivitet i makroalger
2007
Kelp associated epiphytes, their biomass production and community structure in relation to wave exposure and season
2002
Nedbeiting av ålegras forårsaket av sneglen Rissoa membranacea
2000
Epifytter på ålegras og sagtang - en sammenligning mellom fire årstider
1999
Where have all the kelp plants gone?
1999
Epifytter på Sargassum muticum
1999
Epifytter på Zostera marina (ålegras)
1999
Bruk av stabile karbonisotoper til å spore tareskogens influensområde
1999
Biodiversitet i makrofyttsamfunn. Variasjon i tid og rom
Rapporter og avhandlinger
2021
Miljøpåvirkning fra dyrking av makroalger — Risikovurdering for norske farvann
2020
Miljøeffekter ved dyrking av sukkertare (Saccharina latissima) Et taredyrkingsanleggs rolle som kunstig habitat
2020
Et taredyrkingsanleggs rolle som kunstig tareskog. Sammenlikning av faunasamfunn mellom dyrket butare (Alaria esculenta) og naturlig tareskog
2018
Marin gruntvann. Norsk rødliste for naturtyper 2018
2018
Hva påvirker variasjon i tetthet av stortare Laminaria hyperborea langs Norges kyst? En analyse fra Norskehavet sør til Skagerrak
2015
Risikovurdering ved utseting av ikke-stedegen tare
2011
Vurdering av eutrofisituasjonen i kystområder, med særlig fokus på Hardangerfjorden og Boknafjorden
2006
Marinbiologiske forbedringer av miljøet i Bjørvika/Bispervika. Vurderinger av muligheter
2005
Tang, tareskog og ålegras som leveområde og økosystem
2002
Nedbeiting av tareskog i Norge. Rapport fra arbeidsgruppe nedsatt av Fiskeridepartementet og Miljøverndepartementet
2002
Nedbeiting av tareskog i Norge. Rapport fra arbeidsgruppe nedsatt av Fiskeridepartementet og Miljøverndepartementet. Rapport til Fiskeridepartementet
1997
The Norwegian North Sea Coastal Water: Eutriphication; Status and trends
1995
Ytre Oslofjord: Eutrofitilstand, utvikling og forventede effekter av reduserte tilførsler av næringsalter
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