Blar i Published externally på forfatter "Dahle, Geir"
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Genomic analysis reveals neutral and adaptive patterns that challenge the current management regime for East Atlantic cod Gadus morhua L
Johansen, Torild; Besnier, Francois; Sanchez, Maria Quintela; Jorde, Per Erik; Glover, Kevin; Westgaard, Jon-Ivar; Dahle, Geir; Lien, Sigbjørn; Kent, Matthew Peter (Peer reviewed; Journal article, 2020)Challenging long‐held perceptions of fish management units can help to protect vulnerable stocks. When a fishery consisting of multiple genetic stocks is managed as a single unit, overexploitation and depletion of minor ... -
Geographic variation in gene flow from a genetically distinct migratory ecotype drives population genetic structure of coastal Atlantic cod (Gadus morhua L.)
Seliussen, Bjørghild Breistein; Dahle, Geir; Johansen, Torild; Besnier, Francois; Quintela, Maria; Jorde, Per Erik; Knutsen, Halvor; Westgaard, Jon-Ivar; Nedreaas, Kjell Harald; Farestveit, Eva; Glover, Kevin Alan (Peer reviewed; Journal article, 2022)Identifying how physical and biotic factors shape genetic connectivity among populations in time and space is essential to our understanding of the evolutionary trajectory as well as the management of marine species. ... -
Geographic variation in gene-flow from a genetically distinct migratory ecotype drives population genetic structure of coastal Atlantic cod (Gadus morhua L.)
Seliussen, Bjørghild Breistein; Dahle, Geir; Johansen, Torild; Besnier, Francois; Sanchez, Maria Quintela; Jorde, Per Erik; Knutsen, Halvor; Westgaard, Jon-Ivar; Nedreaas, Kjell; Farestveit, Eva; Glover, Kevin (Dataset, 2022)This is the final dataset used in the Breistein et al. (in review) study “Geographic variation in gene-flow from a genetically distinct migratory ecotype drives population genetic structure of coastal Atlantic cod (Gadus ... -
Global, regional, and cryptic population structure in a high gene-flow transatlantic fish
Jansson, Eeva; Faust, Ellika; Bekkevold, Dorte; Quintela, Maria; Durif, Caroline; Halvorsen, Kim Aleksander Tallaksen; Dahle, Geir; Pampoulie, Christophe; Kennedy, James; Whittaker, Benjamin; Unneland, Laila; Post, Søren; André, Carl; Glover, Kevin Alan (Peer reviewed; Journal article, 2023)Lumpfish (Cyclopterus lumpus) is a transatlantic marine fish displaying large population sizes and a high potential for dispersal and gene-flow. These features are expected to result in weak population structure. Here, we ... -
Going With the Flow – Population Genetics of the Kelp Saccharina latissima (Phaeophyceae, Laminariales)
Ribeiro, Pedro A; Næss, Tonje; Dahle, Geir; Asplin, Lars; Meland, Kenneth; Fredriksen, Stein; Sjøtun, Kjersti (Peer reviewed; Journal article, 2022)Saccharina latissima is the most important habitat-forming kelp in sheltered areas of North-Atlantic, and there is also an increasing interest in cultivation and utilization of S. latissima. The cultivation activity may ... -
Going With the Flow – Population Genetics of the Kelp Saccharina latissima (Phaeophyceae, Laminariales)
Ribeiro, Pedro Miguel de Azevedo; Næss, Tonje; Dahle, Geir; Asplin, Lars; Meland, Kenneth; Fredriksen, Stein; Sjøtun, Kjersti (Peer reviewed; Journal article, 2022)Saccharina latissima is the most important habitat-forming kelp in sheltered areas of North-Atlantic, and there is also an increasing interest in cultivation and utilization of S. latissima. The cultivation activity may ... -
High prevalence of viral haemorrhagic septicaemia virus (VHSV) in Norwegian spring‑spawning herring
Johansen, Renate; Bergh, Øivind; Modahl, Ingebjørg; Dahle, Geir; Gjerset, Britt; Holst, Jens Christian; Sandlund, Nina (Journal article; Peer reviewed, 2013-03-25)Viral haemorrhagic septicaemia (VHS) is a viral disease known to cause high mortality in many teleost species, both in wild and farmed populations. The effects of this virus infection on the population dynamics of Atlantic ... -
Kysttorsk eller skrei?
Dahle, Geir; Aglen, Asgeir (Chronicle, 2009-06-15) -
Lessons on Marine Protected Area Management in Northern Boreal Regions from the United States and Norway
McDermott, Susanne F.; Buhl-Mortensen, Lene; Dahle, Geir; Hart, Deborah; Haynie, Alan C.; Johannessen, Tore; Moksness, Erlend; Olsen, Esben Moland; Olsen, Erik Joel Steinar; Olson, John V.; Spencer, Paul D.; Stockhausen, William T. (Journal article, 2017)In comparison to tropical reef systems, relatively few marine protected areas (MPA’s) exist in temperate or subarctic systems (e.g., North Pacific and North Atlantic) where species diversity is lower, abundance of individual ... -
Linking dispersal connectivity to population structure and management boundaries for saithe in the Northeast Atlantic
Myksvoll, Mari Skuggedal; Devine, Jennifer Ann; Quintela, Maria; Geffen, Audrey J.; Nash, Richard David Marriott; Sandvik, Anne Dagrun; Besnier, Francois; Saha, Atal; Dahle, Geir; Jansson, Eeva; Nedreaas, Kjell Harald; Johansen, Torild (Peer reviewed; Journal article, 2021)Population connectivity is an increasingly important focal area for the understanding of how marine fish populations respond to anthropogenic pressures like climate change and fisheries. Our model species, the saithe ... -
Long-term monitoring of a brown trout (Salmo trutta) population reveals kin-associated migration patterns and contributions by resident trout to the anadromous run
Duval, Eloïse; Skaala, Øystein; Sanchez, Maria Quintela; Dahle, Geir; Delaval, Aurelien Nicolas; Wennevik, Vidar; Glover, Kevin Alan; Hansen, Michael Möller (Peer reviewed; Journal article, 2021)In species showing partial migration, as is the case for many salmonid fishes, it is important to assess how anthropogenic pressure experienced by migrating individuals affects the total population. We focused on brown ... -
Long-term monitoring of a brown trout (Salmo trutta) population reveals kin-associated migration patterns and contributions by resident trout to the anadromous run
Duval, Eloïse; Skaala, Øystein; Quintela, María; Dahle, Geir; Delaval, Aurelian; Wennevik, Vidar; Glover, Kevin A.; Hansen, Michael M. (Dataset, 2021)This is the final dataset used in the Duval et al. (in review) study “Long-term monitoring of a brown trout (Salmo trutta) population reveals kin-associated migration patterns and contributions by resident trout to the ... -
Mating competition between farmed and wild cod Gadus morhua
Skjæraasen, Jon Egil; Meager, Justin J.; Karlsen, Ørjan; Mayer, Ian; Dahle, Geir; Rudolfsen, Geir; Fernö, Anders (Journal article; Peer reviewed, 2010-08-18)Increasing numbers of hatchery-produced fish entering marine environments has caused concern over potential fitness depressions in wild populations, yet no study has addressed the likelihood of hybridisation between farmed ... -
Not that clean: aquaculture mediated translocation of cleaner fish has led to hybridization on the northern edge of the species’ range
Faust, Ellika; Jansson, Eeva; André, Carl; Halvorsen, Kim Tallaksen; Dahle, Geir; Knutsen, Halvor; Quintela, Maria; Glover, Kevin A. (Dataset, 2021-03-03)This is the final SNP dataset used in Faust et al. (2021) study "Not that clean: aquaculture mediated translocation of cleaner fish has led to hybridization on the northern edge of the species’ range" published in Evolutionary ... -
Not that clean: Aquaculture-mediated translocation of cleaner fish has led to hybridization on the northern edge of the species' range
Faust, Ellika; Jansson, Eeva; André, Carl; Halvorsen, Kim Aleksander Tallaksen; Dahle, Geir; Knutsen, Halvor; Sanchez, Maria Quintela; Glover, Kevin Alan (Peer reviewed; Journal article, 2021)Translocation and introduction of non-native organisms can have major impacts on local populations and ecosystems. Nevertheless, translocations are common practices in agri- and aquaculture. Each year, millions of wild-caught ... -
The pantophysin gene and its relationship with survival in early life stages of Atlantic cod: Pantophysin in Atlantic cod
Otterå, Håkon Magne; Johansen, Torild; Folkvord, Arild; Dahle, Geir; Bingh, Marte Kristine Solvang; Westgaard, Jon-Ivar; Glover, Kevin (Peer reviewed; Journal article, 2020)Genetic markers are widely used in fisheries management around the world. While the genetic structure and markers selected are usually based on samples from the wild, very few controlled experiments have been carried out ... -
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) -
“Real-time” genetic monitoring of a commercial fishery on the doorstep of an MPA reveals unique insights into the interaction between coastal and migratory forms of the Atlantic cod
Johansen, Torild; Westgaard, Jon-Ivar; Seliussen, Bjørghild Breistein; Nedreaas, Kjell Harald; Dahle, Geir; Glover, Kevin; Kvalsund, Roger; Aglen, Asgeir (Journal article; Peer reviewed, 2017)With the decline of many of the world’s fisheries, increased regulation, including marine protected areas (MPA), forms an increasingly important role in promoting sustainable resource use. Here, we present a novel “real-time” ... -
Scrutinizing the current management units of the greater argentine in the light of genetic structure
Quintela, Maria; Seljestad, Gaute W.; Dahle, Geir; Hallfredsson, Elvar H.; Enberg, Katja; Langbehn, Tom J.; Jansson, Eeva; Glover, Kevin Alan; Westgaard, Jon-Ivar (Dataset, 2024-03-14)Dataset for "Scrutinizing the current management units of the greater argentine in the light of genetic structure" published in ICES Journal of Marine Science, an Oxford journal. The information deposited here consists ... -
The frequency of spontaneous triploidy in farmedAtlantic salmon produced in Norway during theperiod 2007–2014
Glover, Kevin; Madhun, Abdullah Sami; Dahle, Geir; Sørvik, Anne Grete Eide; Wennevik, Vidar; Skaala, Øystein; Morton, Hugh Craig; Hansen, Tom Johnny; Fjelldal, Per Gunnar (Journal article; Peer reviewed, 2015-04-11)Background: Spontaneous triploidy has been reported in a number of fish species, and is often linked with in vivo or in vitro ageing of eggs post ovulation. Here, we provide the first investigation into the frequency of ...