Browsing Brage IMR by Author "André, Carl"
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Activity patterns of wild European lobster Homarus gammarus in coastal marine reserves: implications for future reserve design
Moland, Even; Olsen, Esben Moland; Knutsen, Halvor; Knutsen, Jan Atle; Enersen, Svein Erik; André, Carl; Stenseth, Nils Christian (Journal article; Peer reviewed, 2011-05-16)European lobster Homarus gammarus in Norway has been in decline over the last 30 to 40 yr, and the species is currently red listed according to International Union for Conservation of Nature criteria. In 2006, experimental ... -
Ancient DNA reveals the Arctic origin of Viking Age cod from Haithabu, Germany
Star, Bastiaan; Boessenkool, Sanne; Gondek, Agata Teresa; Nikulina, Elena A.; Hufthammer, Anne Karin; Pampoulie, Christophe; Knutsen, Halvor; André, Carl; Nistelberger, Heidi Maria; Dierking, Jan; Petereit, Christoph; Heinrich, Dirk; Jakobsen, Kjetill Sigurd; Stenseth, Nils Christian; Jentoft, Sissel; Barrett, James H. (Journal article; Peer reviewed, 2017)Knowledge of the range and chronology of historic trade and long-distance transport of natural resources is essential for determining the impacts of past human activities on marine environments. However, the specific ... -
Are low but statistically significant levels of genetic differentiation in marine fishes ‘biologically meaningful’? A case study of coastal Atlantic cod
Knutsen, Halvor; Olsen, Esben Moland; Jorde, Per Erik; Espeland, Sigurd Heiberg; André, Carl (Journal article; Peer reviewed, 2010-12-29)A key question in many genetic studies on marine organisms is how to interpret a low but statistically significant level of genetic differentiation. Do such observations reflect a real phenomenon, or are they caused by ... -
Are low but statistically significant levels of genetic differentiation in marine fishes ‘biologically meaningful’? A case study of coastal Atlantic cod
Knutsen, Halvor; Olsen, Esben Moland; Jorde, Per Erik; Espeland, Sigurd Heiberg; André, Carl (Journal article; Peer reviewed, 2010-12-29)A key question in many genetic studies on marine organisms is how to interpret a low but statistically significant level of genetic differentiation. Do such observations reflect a real phenomenon, or are they caused by ... -
“A cleaner break”: Genetic divergence between geographic groups and sympatric phenotypes revealed in ballan wrasse (Labrus bergylta)
Seljestad, Gaute; Sanchez, Maria Quintela; Faust, Ellika; Halvorsen, Kim Aleksander Tallaksen; Besnier, Francois; Jansson, Eeva; Dahle, Geir; Knutsen, Halvor; André, Carl; Folkvord, Arild; Glover, Kevin (Peer reviewed; Journal article, 2020)Capture and long‐distance translocation of cleaner fish to control lice infestations on marine salmonid farms has the potential to influence wild populations via overexploitation in source regions, and introgression in ... -
Cleaner fish escape salmon farms and hybridize with local wrasse populations
Faust, Ellika; Halvorsen, Kim Aleksander Tallaksen; Andersen, Per; Knutsen, Halvor; André, Carl (Journal article; Peer reviewed, 2018)The genetic impact of farmed fish escaping aquaculture is a highly debated issue. However, non-target species, such as cleaner fish used to remove sea lice from farmed fish, are rarely considered. Here, we report that wild ... -
Conservation, Spillover and Gene Flow within a Network of Northern European Marine Protected Areas
Huserbråten, Mats Brockstedt Olsen; Moland, Even; Knutsen, Halvor; Olsen, Esben Moland; André, Carl; Stenseth, Nils Chr. (Journal article; Peer reviewed, 2013-09-06)To ensure that marine protected areas (MPAs) benefit conservation and fisheries, the effectiveness of MPA designs has to be evaluated in field studies. Using an interdisciplinary approach, we empirically assessed the design ... -
Conservation, Spillover and Gene Flow within a Network of Northern European Marine Protected Areas
Huserbråten, Mats Brockstedt Olsen; Moland, Even; Knutsen, Halvor; Olsen, Esben Moland; André, Carl; Stenseth, Nils Christian (Peer reviewed; Journal article, 2013)To ensure that marine protected areas (MPAs) benefit conservation and fisheries, the effectiveness of MPA designs has to be evaluated in field studies. Using an interdisciplinary approach, we empirically assessed the design ... -
Demographic history has shaped the strongly differentiated corkwing wrasse populations in Northern Europe.
Mattingsdal, Morten; Jorde, Per Erik; Knutsen, Halvor; Jentoft, Sissel; Stenseth, Nils Christian; Sodeland, Marte; Robalo, Joana I.; Hansen, Michael M.; André, Carl; Gonzalez, Enrique Blanco (Journal article; Peer reviewed, 2019)Understanding the biological processes involved in genetic differentiation and divergence between populations within species is a pivotal aim in evolutionary biology. One particular phenomenon that requires clarification ... -
Development of ten microsatellite loci in the marine fish ling (Molva molva)
Ring, Anne-Karin; Knutsen, Halvor; Fiani, David; Hoelzel, Rus; André, Carl (Journal article; Peer reviewed, 2009-09)We developed primers for two dinucleotide and eight tetranucleotide microsatellite loci in a marine fish, the ling (Molva molva). All markers were obtained from partial genomic DNA libraries and characterized in 55 unrelated ... -
Development of twelve novel microsatellite loci in the European lobster (Homarus gammarus)
André, Carl; Knutsen, Halvor (Journal article; Peer reviewed, 2010-09)We developed twelve novel microsatellite loci 8 primers in the European lobster (Homarus gammarus). All 9 markers were obtained from partial genomic DNA libraries 10 enriched for tetranucleotide repeats and characterized ... -
Evidence of hybridization between genetically distinct Baltic cod stocks during peak population abundance(s)
Helmerson, Cecilia; Weist, Peggy; Brieuc, Marine Servane Ono; Maurstad, Marius Filomeno; Schade, Franziska Maria; Dierking, Jan; Petereit, Christoph; Knutsen, Halvor; Metcalfe, Julian; Righton, David; André, Carl; Krumme, Uwe; Jentoft, Sissel; Hanel, Reinhold (Peer reviewed; Journal article, 2023)Range expansions can lead to increased contact of divergent populations, thus increasing the potential of hybridization events. Whether viable hybrids are produced will most likely depend on the level of genomic divergence ... -
Evidence of hybridization between genetically distinct Baltic cod stocks during peak population abundance(s)
Helmerson, Cecilia; Weist, Peggy; Brieuc, Marine Servane Ono; Maurstad, Marius Filomeno; Schade, Franziska Maria; Dierking, Jan; Petereit, Christoph; Knutsen, Halvor; Metcalfe, Julian; Righton, David; André, Carl; Krumme, Uwe; Jentoft, Sissel; Hanel, Reinhold (Peer reviewed; Journal article, 2023)Range expansions can lead to increased contact of divergent populations, thus increasing the potential of hybridization events. Whether viable hybrids are produced will most likely depend on the level of genomic divergence ... -
Genetic analysis of goldsinny wrasse reveals evolutionary insights into population connectivity and potentialevidence of inadverent translocationvia aquaculture.
Jansson, Eeva; Sanchez, Maria Quintela; Dahle, Geir; Albretsen, Jon; Knutsen, Halvor; André, Carl; Strand, Åsa; Mortensen, Stein; Taggart, John B.; Karlsbakk, Egil; Kvamme, Bjørn Olav; Glover, Kevin (Peer reviewed; Journal article, 2017) -
Genetic mixed-stock analysis of Atlantic herring populations in a mixed feeding area
Bekkevold, Dorte; Clausen, Lotte A. W.; Mariani, Stefano; André, Carl; Hatfield, Emma M. C.; Torstensen, Else; Ryman, Nils; Carvalho, Gary R.; Ruzzante, Daniel E. (Journal article; Peer reviewed, 2011-12-05)Determining spatio-temporal distributions of fish populations is of interest to marine ecology, in general, and to fisheries science in particular. Genetic mixed-stock analysis is routinely applied in several anadromous ... -
Genetic study reveals local differentiation persisting in the face of high connectivity and a genomic inversion likely linked with sexual antagonism in a common marine fish
Jansson, Eeva; André, Carl; Quintela, Maria; Halvorsen, Kim Aleksander Tallaksen; Besnier, Francois; Ayllon, Fernando; Faust, Ellika; Knutsen, Halvor; Strand, Åsa; Glover, Kevin Alan (Peer reviewed; Journal article, 2023)Sustainable harvest of wild populations requires knowledge of the underlying population structure. The focus of this study is on goldsinny wrasse (Ctenolabrus rupestris), a small marine fish inhabiting coastal waters of ... -
Genome wide analysis reveals genetic divergence between Goldsinny wrasse populations
Jansson, Eeva; Besnier, Francois; Malde, Ketil; André, Carl; Dahle, Geir; Glover, Kevin (Peer reviewed; Journal article, 2020)Marine fish populations are often characterized by high levels of gene flow and correspondingly low genetic divergence. This presents a challenge to define management units. Goldsinny wrasse (Ctenolabrus rupestris) is a ... -
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 ... -
North Sea herring population structure revealed by microsatellite analysis
Mariani, Stefano; Hutchinson, William F.; Hatfield, Emma M. C.; Ruzzante, Daniel E.; Simmonds, E. John; Dahlgren, Thomas G.; André, Carl; Brigham, Jennifer; Torstensen, Else; Carvalho, Gary R. (Journal article; Peer reviewed, 2005-11-21)The Atlantic herring Clupea harengus has played a pivotal role in the formulation of ideas relating to population structuring in marine fishes, yet considerable uncertainty remains as to the extent to which phenotypic ... -
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 ...