Browsing Brage IMR by Author "Jorde, Per Erik"
Now showing items 21-38 of 38
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Inferring genetic connectivity in real populations, exemplified by coastal and oceanic atlantic cod
Spies, Ingrid; Hauser, Lorenz; Jorde, Per Erik; Knutsen, Halvor; Punt, André E.; Rogers, Lauren; Stenseth, Nils Christian (Journal article; Peer reviewed, 2018)Genetic data are commonly used to estimate connectivity between putative populations, but translating them to demographic dispersal rates is complicated. Theoretical equations that infer a migration rate based on the genetic ... -
Inferring genetic connectivity in real populations, exemplified by coastal and oceanic Atlantic cod
Spies, Ingrid; Hauser, Lorenz; Jorde, Per Erik; Knutsen, Halvor; Punt, André E.; Rogers, Lauren; Stenseth, Nils Christian (Journal article; Peer reviewed, 2018)Genetic data are commonly used to estimate connectivity between putative populations, but translating them to demographic dispersal rates is complicated. Theoretical equations that infer a migration rate based on the genetic ... -
Interbreeding between local and translocated populations of a cleaner fish in an experimental mesocosm predicts risk of disrupted local adaptation
Blanco Gonzalez, Enrique; Espeland, Sigurd Heiberg; Jentoft, Sissel; Hansen, Michael Møller; Robalo, Joana I.; Stenseth, Nils Christian; Jorde, Per Erik (Journal article; Peer reviewed, 2019)Translocation of organisms within or outside its native range carries the risk of modifying the community of the recipient ecosystems and induces gene flow between locally adapted populations or closely related species. ... -
"Islands of divergence" in the Atlantic cod genome represent polymorphic chromosomal rearrangements
Sodeland, Marte; Jorde, Per Erik; Lien, Sigbjørn; Jentoft, Sissel; Berg, Paul Ragnar; Grove, Harald; Kent, Matthew Peter; Arnyasi, Mariann; Olsen, Esben Moland; Knutsen, Halvor (Peer reviewed; Journal article, 2016) -
"Islands of divergence" in the Atlantic cod genome represent polymorphic chromosomal rearrangements
Sodeland, Marte; Jorde, Per Erik; Lien, Sigbjørn; Jentoft, Sissel; Berg, Paul Ragnar; Grove, Harald; Kent, Matthew Peter; Arnyasi, Mariann; Olsen, Esben Moland; Knutsen, Halvor (Journal article; Peer reviewed, 2016-03-15)In several species genetic differentiation across environmental gradients or between geographically separate populations has been reported to center at “genomic islands of divergence,” resulting in heterogeneous differentiation ... -
Krafttak for kysttorsken - Kunnskap for stedstilpasset gjenoppbygging av bestander, naturtyper og økosystem i Færder- og Ytre Hvaler nasjonalparker
Moland, Even; Synnes, Ann-Elin; Naustvoll, Lars Johan; Freitas, Carla; Norderhaug, Kjell Magnus; Thormar, Jonas; Biuw, Martin; Jorde, Per Erik; Knutsen, Halvor; Dahle, Geir; Jelmert, Anders; Bosgraaf, Sebastian; Olsen, Esben Moland; Deininger, Anne; Haga, Atle (Rapport fra havforskningen;2021 - 2, Research report, 2021)Ytre Oslofjord har en unik kystnatur av svært stor verdi for både fastboende og tilreisende. Færder- og Ytre Hvaler nasjonalparker ligger side om side ytterst i fjorden, og skal sikre naturverdiene for kommende generasjoner. ... -
Kysttorsk: Genetiske analyser påviser lokale bestander
Knutsen, Halvor; Jorde, Per Erik; Stenseth, Nils Christian (Havforskningsnytt, Working paper, 2002) -
Life history and demographic determinants of effective/census size ratios as exemplified by brown trout (Salmo trutta)
Serbezov, Dimitar; Jorde, Per Erik; Bernatchez, L; Olsen, Esben Moland; Vøllestad, Leif Asbjørn (Journal article; Peer reviewed, 2012)A number of demographic factors, many of which related to human-driven encroachments, are predicted to decrease the effective population size (Ne) relative to the census population size (N), but these have been little ... -
Local recruitment of Atlantic cod and putative source spawning areas in a coastal seascape
Synnes, Ann-Elin; Huserbråten, Mats Brockstedt Olsen; Knutsen, Halvor; Jorde, Per Erik; Sodeland, Marte; Moland, Even (Peer reviewed; Journal article, 2021)Increased knowledge on connectivity is crucial to our understanding of the population dynamics, genetic structure, and biogeography of many coastal species. In coastal marine populations, the main factor for structuring ... -
Northern refugia and recent expansion in the North Sea: the case of the wrasse Symphodus melops (Linnaeus, 1758)
Robalo, Joana I.; Castilho, Rita; Francisco, Sara M.; Almada, Frederico; Knutsen, Halvor; Jorde, Per Erik; Pereira, Ana M.; Almada, Vitor C. (Peer reviewed; Journal article, 2012) -
Population genetic structure in a deepwater fish Coryphaenoides rupestris: patterns and processes
Knutsen, Halvor; Jorde, Per Erik; Bergstad, Odd Aksel; Skogen, Morten D. (Journal article; Peer reviewed, 2012-07-24)We observed significant genetic structure in a widely distributed North Atlantic demersal deepwater fish, the roundnose grenadier Coryphaenoides rupestris (Pisces: Macro - uridae). The overall estimate of genetic ... -
Population structure in Atlantic cod in the eastern North Sea-Skagerrak-Kattegat: early life stage dispersal and adult migration
André, Carl; Svedang, Hendrik; Knutsen, Halvor; Dahle, Geir; Jonsson, Patrik; Ring, Anna-Karin; Sköld, Mattias; Jorde, Per Erik (Journal article; Peer reviewed, 2016-02-03) -
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 ... -
The making of a genetic cline: introgression of oceanic genes into coastal cod populations in the Northeast Atlantic
Jorde, Per Erik; Huserbråten, Mats Brockstedt Olsen; Seliussen, Bjørghild Breistein; Myksvoll, Mari Skuggedal; Vikebø, Frode Bendiksen; Dahle, Geir; Aglen, Asgeir; Johansen, Torild (Peer reviewed; Journal article, 2021)Abstract: Coastal Atlantic cod (Gadus morhua) in the Northeast Atlantic has seen a continuous decline since the industrialization of the coastal fishery, and management needs to address the spatial and temporal complexities ... -
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)