Browsing Brage IMR by Author "Albretsen, Jon"
Now showing items 41-60 of 91
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Kystmodellen NorKyst-800 – en strømmodell for hele norskekysten
Asplin, Lars; Sandvik, Anne Dagrun; Albretsen, Jon (Havforskningsnytt;Nr. 8 - 2011, Working paper, 2011)Kystmodellen NorKyst-800 er en beregningsmodell som simulerer bl.a. strøm, saltholdighet og temperatur med 800 meters romlig oppløsning og med høy oppløsning i tid for hele norskekysten. NorKyst-800 er utviklet på ... -
Lemon sole Microstomus kitt in the northern North Sea: a multidisciplinary approach to the early life-history dynamics
Geffen, Audrey J.; Albretsen, Jon; Huwer, Bastian; Nash, Richard David Marriott (Peer reviewed; Journal article, 2021)Lemon sole Microstomus kitt is a commercially valuable flatfish species that occurs in shelf waters around the northeast Atlantic. Only the most basic life-history information is available for the North Sea. Spawning is ... -
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) -
Marin plast i Skagerrak - Kartlegging og spredningsmodellering
Albretsen, Jon; Huserbråten, Mats Brockstedt Olsen; Lyngvær Mathisen, Hege; Naustvoll, Lars Johan (Rapport fra havforskningen;38-2018, Research report, 2018) -
Marine naturforhold og naturverdier i Færder nasjonalpark
Dahl, Einar; Knutsen, Jan Atle; Albretsen, Jon; Espeland, Sigurd Heiberg; Huserbråten, Mats Brockstedt Olsen; Knutsen, Halvor; Jelmert, Anders; Kleiven, Alf Ring; Moland, Even; Moy, Frithjof; Naustvoll, Lars-Johan; Olsen, Esben Moland; Thorbjørnsen, Susanna Huneide (Rapport fra Havforskningen;Nr. 3 - 2015, Working paper, 2015-02) -
Marine naturverdier i Telemark – status, trusler og muligheter. Innspill til kystsoneplan for Telemark.
Rinde, Eli; Olsen, Marianne; Steen, Henning; Dahl, Einar; Espeland, Sigurd Heiberg; Albretsen, Jon (NIVA-rapport, Research report, 2018)Denne rapporten er skrevet på oppdrag for Telemark fylkeskommune. Rapporten gir en kunnskapsstatus over forekomst og utbredelse av marine naturverdier, deres tilstand og hvilke kjente trusler disse er utsatt for med hensyn ... -
Massedød av stillehavsøsters, Crassostrea gigas, i Sverige og Norge, september 2014
Mortensen, Stein; Bodvin, Torjan; Skår, Cecilie K.; Sælemyr, Lisbeth; Jelmert, Anders; Albretsen, Jon; Naustvoll, Lars-Johan (Rapport fra Havforskningen;Nr. 28-2014, Working paper, 2014-10-24) -
Metode for lokalisering og verdisetting av gyteplasser i fjorder med dype terskler, åpne havbukter og sund
Espeland, Sigurd Heiberg; Albretsen, Jon; Dahle, Geir; Asplin, Lars; Olsen, Torstein; Olsen, Esben Moland; Simonsen, Jan Henrik; Bodvin, Torjan (Fisken og havet;1-2010, Research report, 2009-12-31)Marine mapping of spawning areas for coastal cod have become increasingly important. Previous mapping have considered aggregations of mature cod. In this study we also evaluate distribution of cod eggs and their passive ... -
Mind the depth: The vertical dimension of a small-scale coastal fishery shapes selection on species, size, and sex in wrasses
Halvorsen, Kim Aleksander Tallaksen; Sørdalen, Tonje Knutsen; Larsen, Torkel; Browman, Howard; Rafoss, Trond; Albretsen, Jon; Skiftesvik, Anne Berit (Peer reviewed; Journal article, 2020)Small‐scale fisheries (SSFs) tend to target shallow waters, but the depth distributions of coastal fish can vary depending on species, size, and sex. This creates a scope for a form of fishing selectivity that has received ... -
Modeling key processes affecting Al speciation and transport in estuaries
Simonsen, Magne; Teien, Hans-Christian; Lind, Ole Christian; Sætra, Øyvind; Albretsen, Jon; Salbu, Brit (Journal article; Peer reviewed, 2019)Assessments of the impacts of aluminium (Al) to aquatic organisms in estuarine waters have suffered from the lack of available models that can accurately predict the presence of toxic physico-chemical forms (species) of ... -
Modeling the Distribution of Habitat-Forming, Deep-Sea Sponges in the Barents Sea: The Value of Data
Gonzalez-Mirelis, Genoveva; Ross, Rebecca; Albretsen, Jon; Buhl-Mortensen, Pål (Peer reviewed; Journal article, 2021)The use of species occurrence as a proxy for habitat type is widespread, probably because it allows the use of species distribution modeling (SDM) to cost-effectively map the distribution of e.g., vulnerable marine ecosystems. ... -
Modelled salmon lice dispersion and infestation patterns in a sub-arctic fjord
Skardhamar, Jofrid; Albretsen, Jon; Sandvik, Anne Dagrun; Lien, Vidar Surén; Myksvoll, Mari Skuggedal; Johnsen, Ingrid Askeland; Asplin, Lars; Ådlandsvik, Bjørn; Halttunen, Elina; Bjørn, Pål Arne (Journal article; Peer reviewed, 2018)Salmon lice infestation is a major challenge for the aquaculture industry in Norway, threatening wild salmonid populations and causing welfare problems for farmed salmon. Lice dispersion and infestation patterns are simulated ... -
Modelling drift of pelagic offspring: the importance of egg surveys in providing a realistic model initialization.
Espeland, Sigurd Heiberg; Albretsen, Jon; Olsen, Esben Moland; Bodvin, Torjan (Journal article; Peer reviewed, 2015-07-11)Having valid information about the location and dynamics of biological processes is important for coastal management. In this context modelling, the pelagic drift of early life stages has been shown to be an important tool ... -
Modelling of the Svalbard fjord Hornsund
Jakacki, Jaromir; Przyborska, Anna; Kosecki, Szymon; Sundfjord, Arild; Albretsen, Jon (Peer reviewed; Journal article, 2017) -
Modelling salmon lice copepodids along the Norwegian coast – comparing old and new particle tracking models
Myksvoll, Mari Skuggedal; Asplin, Lars; Sandvik, Anne Dagrun; Johnsen, Ingrid Askeland; Ådlandsvik, Bjørn; Albretsen, Jon; Skardhamar, Jofrid (Rapport fra havforskningen;39-2018, Research report, 2018) -
Mulighetskartlegging for kystbaserte næringer i Østfold
Kaste, Øyvind; Dahl, Einar; Gaeta, Federico Håland; Hess-Erga, Ole-Kristian; Johnsen, Kathrine Ivsett; Kildahl, Henriette Othilie Bøe; Steen, Henning; Albretsen, Jon (NIVA-rapport, Research report, 2020)En rekke utredninger og strategidokumenter, både på internasjonalt og nasjonalt nivå, peker på at det er et stort potensial for økt vekst og verdiskaping knyttet til marine næringer. Viken fylkeskommune og kommunene langs ... -
New validation method for hydrodynamic fjord models applied in the Hardangerfjord, Norway
Dalsøren, Stig B.; Albretsen, Jon; Asplin, Lars (Peer reviewed; Journal article, 2020)We introduce a new intuitive evaluation method for comparison of fjord model results and current measurements. The approach is tested using high resolution model simulations and measurements in the Hardangerfjord, a large ... -
NorKyst-800 Rapport nr. 1 : Brukermanual og tekniske beskrivelser
Albretsen, Jon; Sperrevik, Ann Kristin; Staalstrøm, André; Sandvik, Anne Dagrun; Vikebø, Frode; Asplin, Lars (Fisken og havet;2-2011, Research report, 2011-02-15)NorKyst-800 (Norwegian Coast 800m) is a numerical, high-resolution, ocean modelling system. The main motivation for establishing NorKyst-800, besides the easy-to-implement and easy-and-rapid-to-use facilities, is the ... -
NorKyst-800: A high-resolution coastal ocean circulation model for Norway
Albretsen, Jon; Sandvik, Anne Dagrun; Asplin, Lars (Conference object, 2011-11) -
NorKyst800: versjoner og arkiver — Oversikt over versjoner og arkiver av NorKyst800 som hittil er brukt for modellering av det fysiske miljø i norsk kystsone - med fokus på implikasjoner for lakselusmodellen til Havforskningsinstituttet
Albretsen, Jon; Sandvik, Anne Dagrun; Asplin, Lars; Lien, Vidar Surén; Skardhamar, Jofrid (Rapport fra havforskningen;2022 - 35, Research report, 2022)NorKyst800 er et strømmodellsystem som bruker den åpent tilgjengelige modellen ROMS (Regional Ocean Modeling System) til å gjenskape strøm, hydrografi og vannstand i den norske kystsonen. Modellen har en horisontal oppløsning ...