Blar i Brage IMR på forfatter "Erga, Svein Rune"
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Diel variations in photosynthetic activity of summer phytoplankton in Lindåspollene, western Norway
Erga, Svein Rune; Skjoldal, Hein Rune (Journal article; Peer reviewed, 1990-07-19)Diel patterns in photosynthesis of natural phytoplankton were studied during a 5 d period during midsummer in Lindbspollene, a land-locked fjord of western Norway. Samples were taken from depths of 0.5, 5, 10 and 21 m ... -
FJORDCULT : økt biologisk produksjon i fjorder ved kunstig oppstrømming av dypvann
Aure, Jan; Erga, Svein Rune; Asplin, Lars (Fisken og havet, Research report, 2000)Our investigations show that artificial upwelling of nutrient rich waters in fiords, using a submerged fresh water discharge, have a potential to increase the algae production by a factor of 3-4 after the spring bloom and ... -
The importance of microbiota and terrestrial inflows in controlling seston C:N:P:O:Si:Ca:Mn:Mg:Fe:K:Na:Cl:S:Cu:Zn stoichiometry of a deep coastal fjord
Erga, Svein Rune; Heldal, Mikal; Prestegard, Siv Kristin; Norland, Svein; Tsagkaraki, Tatiana Margko; Storesund, Julia Endresen (Peer reviewed; Journal article, 2022)Comprehensive fjord-systems represent major extensions of the coastline and are therefore important transfer zones of materials from land to ocean. Despite increased terrestrial inflows to fjords due to climate changes, ... -
Kartlegging av potensielle områder for skadelige planktonalger i norske farvann, Del 1, Kyst og hav
Fyllingen, Inger; Erga, Svein Rune (Fisken og havet, Research report, 1991)Referring to known harmful algal blooms, a risk mapping of the most exposed areas along the Norwegian Coast has been made. The area Svenskegrensa -Lista seems to be most exposed, the risk being reduced moving further north. ... -
Linking bacterial community structure to advection and environmental impact along a coast-fjord gradient of the Sognefjord, western Norway
Storesund, Julia Endresen; Sandaa, Ruth-Anne; Thingstad, T. Frede; Asplin, Lars; Albretsen, Jon; Erga, Svein Rune (Peer reviewed; Journal article, 2017) -
Primary production enhancement by artificial upwelling in a western Norwegian fjord
Aure, Jan; Strand, Øivind; Erga, Svein Rune; Strohmeier, Tore (Journal article; Peer reviewed, 2007-12-20)To enhance primary production rate for shellfish cultivation in fjords, a large-scale artificial upwelling experiment was carried out in a western Norwegian fjord during the summers of 2004 and 2005. Pumping 2 m3 s–1 ... -
Primærproduksjonsforholdene i Ytre Oslofjord
Bødtker, Gunhild; Erga, Svein Rune; Rey, Francisco (Fisken og havet, Research report, 1995)Med bakgrunn i klorofyll og lysdata og ved hjelp av en enkelt algoritme, har den årlige primærproduksjonen i Ytre Oslofjord blitt beregnet til ca. 100 gC m-2. En sammeligning av årsproduksjoner basert på beregnede og ... -
Restoration of carrying capacity of mussel farming in fjords by use of artificial upwelling
Aure, Jan; Strand, Øivind; Erga, Svein Rune; Strohmeier, Tore (Conference object, 2007-06-11) -
Seasonal variations in C:N:Si:Ca:P:Mg:S:K:Fe relationships of seston from Norwegian coastal water: Impact of extreme offshore forcing during winter-spring 2010
Erga, Svein Rune; Haugen, Stig Bjarne; Bratbak, Gunnar; Egge, Jorun Karin; Heldal, Mikal; Mork, Kjell Arne; Nordland, Svein (Peer reviewed; Journal article, 2017) -
UV (280 to 400 nm) optical properties in a Norwegian fjord system and an intercomparison of underwater radiometers
Kjeldstad, Berit; Frette, Øyvind; Erga, Svein Rune; Browman, Howard I.; Kuhn, Penelope S.; Davis, Richard F.; Miller, William; Stamnes, Jakob J. (Journal article; Peer reviewed, 2003-07-17)The depth to which solar ultraviolet (UV) radiation penetrates water columns is highly variable. The range in diffuse attenuation coefficients observed in the clearest ocean waters versus small oligotrophic lakes can be ... -
UV transmission in Norwegian marine waters: controlling factors and possible effects on primary production and vertical distribution of phytoplankton
Erga, Svein Rune; Aursland, Kjetil; Frette, Øyvind; Hamre, Børge; Lotsberg, Jon Kåre; Stamnes, Jakob J.; Aure, Jan; Rey, Francisco; Stamnes, Knut (Journal article; Peer reviewed, 2005-12-23)We investigated the ultraviolet radiation (UVR) transmission properties of Norwegian oceanic, coastal and fjord waters, and how they influence the primary production and vertical distribution of phytoplankton. Values of ...