Browsing Published externally by Author "Albretsen, Jon"
Now showing items 41-57 of 57
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Real-Time Ichthyoplankton Drift in Northeast Arctic Cod and Norwegian Spring-Spawning Herring
Vikebø, Frode; Ådlandsvik, Bjørn; Albretsen, Jon; Sundby, Svein; Stenevik, Erling Kåre; Huse, Geir; Svendsen, Einar; Kristiansen, Trond; Eriksen, Elena (Journal article; Peer reviewed, 2011-11-16)Background: Individual-based biophysical larval models, initialized and parameterized by observations, enable numerical investigations of various factors regulating survival of young fish until they recruit into the adult ... -
Sandbanks, sandwaves and megaripples on Spitsbergenbanken, Barents Sea
Bellec, Valérie K.; Bøe, Reidulv; Bjarnadóttir, Lilja Rún; Albretsen, Jon; Dolan, Margaret F.J.; Chand, Shyam; Thorsnes, Terje; Jakobsen, Frank Werner; Nixon, Chantel; Plassen, Liv; Jensen, Henning; Baeten, Nicole Jeanne; Olsen, Heidi; Elvenes, Sigrid (Journal article; Peer reviewed, 2019)Recently acquired multibeam echosounder data from the shallowest part (26–53 m depth) of Spitsbergenbanken in the western Barents Sea reveal a variety of bedforms, including megaripples, sandwaves and sandbanks. The bedforms ... -
Simulacion de la deriva de larvas de langosta en aguas oceanicas adyacentes a la plataforma suroccidental de Cuba: Aplicacion del modelo biofisico LADIM
Martin, Heriberto; Betanzos-Vega, Abel; Simanca, Jacqueline; Puga, Rafael; Vikebø, Frode Bendiksen; Albretsen, Jon; Tripp-Quezada, Arturo (Peer reviewed; Journal article, 2017) -
Simulating particle organic matter dispersal beneath Atlantic salmon fish farms using different resuspension approaches
Carvajalino-Fernandez, Marcos Antonio; Sævik, Pål Næverlid; Johnsen, Ingrid Askeland; Albretsen, Jon; Keeley, Nigel B. (Peer reviewed; Journal article, 2020)An accurate representation of the particle organic matter (POM) footprint is necessary in order to effectively predict impacts upon benthic communities and the risk of excessive organic enrichment beneath aquaculture ... -
Stabilizing selection on Atlantic cod supergenes through a millennium of extensive exploitation
Sodeland, Marte; Jentoft, Sissel; Jorde, Per Erik; Mattingsdal, Morten; Albretsen, Jon; Kleiven, Alf Ring; Synnes, Ann-Elin; Espeland, Sigurd Heiberg; Olsen, Esben Moland; André, Carl; Stenseth, Nils Christian; Knutsen, Halvor (Peer reviewed; Journal article, 2022)Life on Earth has been characterized by recurring cycles of ecological stasis and disruption, relating biological eras to geological and climatic transitions through the history of our planet. Due to the increasing degree ... -
Stabilizing selection on Atlantic cod supergenes through a millennium of extensive exploitation
Sodeland, Marte; Jentoft, Sissel; Jorde, Per Erik; Mattingsdal, Morten; Albretsen, Jon; Kleiven, Alf Ring; Synnes, Ann-Elin; Espeland, Sigurd Heiberg; Olsen, Esben Moland; André, Carl; Stenseth, Nils Christian; Knutsen, Halvor (Peer reviewed; Journal article, 2022)Life on Earth has been characterized by recurring cycles of ecological stasis and disruption, relating biological eras to geological and climatic transitions through the history of our planet. Due to the increasing degree ... -
Stable coexistence of genetically divergent Atlantic cod ecotypes at multiple spatial scales
Knutsen, Halvor; Jorde, Per Erik; Hutchings, Jeffrey; Hemmer-Hansen, Jakob; Grønkjær, Peter; Jørgensen, Kris-Emil Mose; André, Carl; Sodeland, Marte; Albretsen, Jon; Olsen, Esben Moland (Journal article; Peer reviewed, 2018)Coexistence in the same habitat of closely related yet genetically different populations is a phenomenon that challenges our understanding of local population structure and adaptation. Identifying the underlying mechanisms ... -
A step towards high resolution modeling of the central Faroe shelf circulation by FarCoast800
Erenbjerg, Sissal V.; Albretsen, Jon; Simonsen, Knud; Sandvik, Anne Dagrun; Kaas, Eigil (Peer reviewed; Journal article, 2020)This paper describes the FarCoast800 model setup for the Faroe shelf and the validation towards observations. We found that the circulation was in accordance with observations on the shelf and the upper 500m of the water ... -
Stillehavsøsters i Norden. Datainnsamling og bestandsvurderinger som grunnlag for forvaltning og høsting av nordiske bestander av stillehavsøsters, Crassostrea gigas
Mortensen, Stein; Laugen, Ane T; Strand, Åsa; Dolmer, Per; Naustvoll, Lars Johan; Jelmert, Anders; Albretsen, Jon; Broström, Göran; Gustafsson, Malin; Durkin, Alice; Esaghoolian Khogyane, Sevan; Partoft, Hanna; Bøgwald, Mats (TemaNord, Research report, 2022) -
Temperature-associated habitat selection in a cold-water marine fish.
Freitas, Carla; Olsen, Esben Moland; Knutsen, Halvor; Albretsen, Jon; Moland, Even (Journal article; Peer reviewed, 2015-11-23) -
The abundance of kelp is modified by the combined impact of depth, waves and currents
Bekkby, Trine; Smit, Cecilie; Gundersen, Hege; Rinde, Eli; Steen, Henning; Tveiten, Lise Ann; Gitmark, Janne Kim; Fredriksen, Stein; Albretsen, Jon; Christie, Hartvig C (Journal article; Peer reviewed, 2019)This study analyses the combined impact of two types of ocean water flow, wave exposure and ocean currents, on kelp Laminaria hyperborea abundance, taking other environmental co-variables into account. The dataset covers ... -
The Northeast Greenland shelf as a potential habitat for the Northeast Arctic cod
Strand, Kjersti Opstad; Sundby, Svein; Albretsen, Jon; Vikebø, Frode Bendiksen (Peer reviewed; Journal article, 2017) -
A tidally driven fjord-like strait close to an amphidromic region
Erenbjerg, Sissal Vágsheyg; Albretsen, Jon; Simonsen, Knud; Olsen, Erna Lava; Kaas, Eigil; Hansen, Bogi (Peer reviewed; Journal article, 2021)The strait studied in this paper, “Sundalagið Norður”, is the northern part of a narrow body of seawater separating the two largest islands in the Faroe Islands (Faroes). It has shallow sills in both ends and considerably ... -
Towards direct evidence of the effects of salmon lice (Lepeophtheirus salmonis Kr?yer) on sea trout (Salmo trutta L.) in their natural habitat: proof of concept for a new combination of methods
Serra Llinares, Rosa Maria; Freitas, Carla; Nilsen, Rune; Elvik, Kristine Marit Schrøder; Albretsen, Jon; Bøhn, Thomas; Karlsen, Ørjan; Bjørn, Pål Arne (Journal article; Peer reviewed, 2018)Studies addressing the impact of salmon lice (Lepeophtheirus salmonis Krøyer) on sea trout in their natural habitat are scarce and mostly limited to prophylaxis-based experiments. The main drawbacks with this approach are ... -
Trans-polar drift-pathways of riverine European microplastic
Huserbråten, Mats Brockstedt Olsen; Hattermann, Tore; Broms, Cecilie; Albretsen, Jon (Peer reviewed; Journal article, 2022)High concentrations of microplastic particles are reported across the Arctic Ocean–yet no meaningful point sources, suspension timelines, or accumulation areas have been identified. Here we use Lagrangian particle advection ... -
Using Spatial Validity and Uncertainty Metrics to Determine the Relative Suitability of Alternative Suites of Oceanographic Data for Seabed Biotope Prediction. A Case Study from the Barents Sea, Norway
Dolan, Margaret; Ross, Rebecca; Albretsen, Jon; Skardhamar, Jofrid; Gonzalez-Mirelis, Genoveva; Bellec, Valerie Karin; Buhl-Mortensen, Pål; Bjarnadóttir, Lilja Rún (Peer reviewed; Journal article, 2021)The use of habitat distribution models (HDMs) has become common in benthic habitat mapping for combining limited seabed observations with full-coverage environmental data to produce classified maps showing predicted habitat ... -
Utredning av behovet for å redusere tilførslene av nitrogen til Ytre Oslofjord
Staalstrøm, Andre; Walday, Mats Gunnar; Vogelsang, Christian; Frigstad, Helene; Borgersen, Gunhild; Albretsen, Jon; Naustvoll, Lars Johan (NIVA-rapport, Research report, 2021)I store deler av Oslofjorden er det høye konsentrasjoner av nitrogen i vannmassene. I Frierfjorden, Tønsberg, Drammensfjorden, Mossesundet, Hvaler og Iddefjorden klassifiseres tilstanden til «moderat» eller dårlig for ...