Browsing Articles by Author "Knutsen, Halvor"
Now showing items 61-72 of 72
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Replicated marine protected areas (MPAs) support movement of larger, but not more, European lobsters to neighbouring fished areas
Thorbjørnsen, Susanna Huneide; Moland, Even; Huserbråten, Mats Brockstedt Olsen; Knutsen, Jan Atle; Knutsen, Halvor; Olsen, Esben Moland (Journal article; Peer reviewed, 2018)The European lobster Homarus gammarus is heavily exploited in the Norwegian fishery, and several management actions have been implemented to protect the species. Three marine protected areas (MPAs) excluding all but hook ... -
Restoration of Abundance and Dynamics of Coastal Fish and Lobster Within Northern Marine Protected Areas Across Two Decades
Moland, Even; Fernández-Chacón, Albert; Sørdalen, Tonje Knutsen; Villegas-Rios, David; Thorbjørnsen, Susanna Huneide; Halvorsen, Kim Aleksander Tallaksen; Huserbråten, Mats Brockstedt Olsen; Olsen, Esben Moland; Kleiven, Portia Joy Nillos; Kleiven, Alf Ring; Knutsen, Halvor; Espeland, Sigurd Heiberg; Freitas, Carla; Knutsen, Jan Atle (Peer reviewed; Journal article, 2021)This article reviews a suite of studies conducted in a network of coastal Marine Protected Areas (MPAs) in Skagerrak, Southeast Norway. In 2006, Norway’s first lobster reserves were implemented, with the aim of protecting ... -
Selection on fish personality differs between a no-take marine reserve and fished areas
Thorbjørnsen, Susanna Huneide; Moland, Even; Villegas-Ríos, David; Bleeker, Katinka; Knutsen, Halvor; Olsen, Esben Moland (Peer reviewed; Journal article, 2021)Marine reserves can protect fish populations by increasing abundance and body size, but less is known about the effect of protection on fish behaviour. We looked for individual consistency in movement behaviours of sea ... -
Small-scale genetic structure in a marine population in relation to water circulation and egg characteristics
Ciannelli, Lorenzo; Knutsen, Halvor; Olsen, Esben Moland; Espeland, Sigurd Heiberg; Asplin, Lars; Jelmert, Anders; Knutsen, Jan Atle; Stenseth, Nils Christian (Journal article; Peer reviewed, 2010-10)Until the last decade it was assumed that most marine species have pronounced gene flow over vast areas, largely because of their potential for dispersal during early life stages. However, recent genetic, modeling, and ... -
Spatial scale of genetic structuring in coastal cod Gadus morhua and geographic extent of local populations
Jorde, Per Erik; Knutsen, Halvor; Espeland, Sigurd Heiberg; Stenseth, Nils Christian (Journal article; Peer reviewed, 2007-08-07)We estimated the spatial scale of genetically distinguishable populations of coastal Atlantic cod Gadus morhua using microsatellite DNA markers. Significant overall heterogeneity in allele frequencies was found among 5 cod ... -
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 ... -
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 role of the Strait of Gibraltar in shaping the genetic structure of the Mediterranean Grenadier, Coryphaenoides mediterraneus, between the Atlantic and Mediterranean Sea
Catarino, Diana; Stefanni, Sergio; Jorde, Per Erik; Menezes, Gui; Company, Joan B.; Neat, Francis; Knutsen, Halvor (Peer reviewed; Journal article, 2017) -
Three chromosomal rearrangements promote genomic divergence between migratory and stationary ecotypes of Atlantic cod
Berg, Paul Ragnar; Star, Bastiaan; Pampoulie, Christophe; Sodeland, Marte; Barth, Julia Maria Isis; Knutsen, Halvor; Jakobsen, Kjetill Sigurd; Jentoft, Sissel (Journal article; Peer reviewed, 2016-03-17)Identification of genome-wide patterns of divergence provides insight on how genomes are influenced by selection and can reveal the potential for local adaptation in spatially structured populations. In Atlantic cod – ... -
Warming Accelerates the Onset of the Molecular Stress Response and Increases Mortality of Larval Atlantic Cod
Oomen, Rebekah Alice; Knutsen, Halvor; Olsen, Esben Moland; Jentoft, Sissel; Stenseth, Nils Christian; Hutchings, Jeffrey (Peer reviewed; Journal article, 2022)Temperature profoundly affects ectotherm physiology. Although differential thermal responses influence fitness, thus driving population dynamics and species distributions, our understanding of the molecular architecture ...