Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Jon‐Ivar Westgaard"'
Autor:
Bjoerghild Breistein, Geir Dahle, Torild Johansen, Francois Besnier, Maria Quintela, Per Erik Jorde, Halvor Knutsen, Jon‐Ivar Westgaard, Kjell Nedreaas, Eva Farestveit, Kevin Alan Glover
Publikováno v:
Evolutionary Applications, Vol 15, Iss 7, Pp 1162-1176 (2022)
Abstract 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. Atlantic cod is a widesp
Externí odkaz:
https://doaj.org/article/4999e32777ea43d981c6ede966a1cd69
Autor:
Endre Willassen, Jon-Ivar Westgaard, Jon Anders Kongsrud, Tanja Hanebrekke, Pål Buhl-Mortensen, Børge Holte
Publikováno v:
PeerJ, Vol 10, p e14321 (2022)
To protect and restore ecosystems and biodiversity is one of the 10 challenges identified by the United Nations’s Decade of the Ocean Science. In this study we used eDNA from sediments collected in two fjords of the Svalbard archipelago and compare
Externí odkaz:
https://doaj.org/article/f711be6b39f94acda352cc26e1dd465d
Autor:
Torild Johansen, François Besnier, María Quintela, Per Erik Jorde, Kevin A. Glover, Jon‐Ivar Westgaard, Geir Dahle, Sigbjørn Lien, Matthew P. Kent
Publikováno v:
Evolutionary Applications, Vol 13, Iss 10, Pp 2673-2688 (2020)
Abstract 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 genetic units can o
Externí odkaz:
https://doaj.org/article/7298632e1dfb41fd81f90106da9a09b8
Autor:
Atal Saha, Matthew Kent, Lorenz Hauser, Daniel P Drinan, Einar E Nielsen, Jon-Ivar Westgaard, Sigbjørn Lien, Torild Johansen
Publikováno v:
PLoS ONE, Vol 16, Iss 5, p e0251976 (2021)
The diverse biology and ecology of marine organisms may lead to complex patterns of intraspecific diversity for both neutral and adaptive genetic variation. Sebastes mentella displays a particular life-history as livebearers, for which existence of m
Externí odkaz:
https://doaj.org/article/c2b02b307b1542d4a60f74773e69731d
Autor:
Håkon Otterå, Torild Johansen, Arild Folkvord, Geir Dahle, Marte Kristine Solvang Bingh, Jon-Ivar Westgaard, Kevin A. Glover
Publikováno v:
Royal Society Open Science, Vol 7, Iss 10 (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 to investigate possible diffe
Externí odkaz:
https://doaj.org/article/111af7fcd2c54e9ca2db5e2922809315
Autor:
Geir Dahle, María Quintela, Torild Johansen, Jon-Ivar Westgaard, François Besnier, Asgeir Aglen, Knut E. Jørstad, Kevin A. Glover
Publikováno v:
BMC Genetics, Vol 19, Iss 1, Pp 1-17 (2018)
Abstract Background Atlantic cod (Gadus morhua L.) has formed the basis of many economically significant fisheries in the North Atlantic, and is one of the best studied marine fishes, but a legacy of overexploitation has depleted populations and coll
Externí odkaz:
https://doaj.org/article/648ad4ad150b44cabe1e4f677cd5eb7c
Publikováno v:
ICES Journal of Marine Science. 80:766-774
Investigations of genetic stock structure sometimes reveal a mismatch between management units and biological units. In Scandinavian waters, Norway lobster (Nephrops norvegicus) is divided into two management units (the Skagerrak–Kattegat and the N
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::725f96f9b9dca53ffb3ef922e16a5020
https://doi.org/10.1093/icesjms/fsad009
https://doi.org/10.1093/icesjms/fsad009
Autor:
Gledis Guri, Jon‐Ivar Westgaard, Nigel Yoccoz, Owen S. Wangensteen, Kim Præbel, Jessica Louise Ray, Ryan P. Kelly, Andrew Olaf Shelton, Tanja Hanebrekke, Torild Johansen
Publikováno v:
Environmental DNA
Environmental DNA (eDNA) has gained popularity as a tool for ecosystem biomonitoring and biodiversity assessment. Although much progress has been made regarding laboratory and fieldwork protocols, the issue of sampling efficiency requires further inv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::765dfb0ff8e53db2a4cdee1b572ac18b
https://doi.org/10.1002/edn3.409
https://doi.org/10.1002/edn3.409
Publikováno v:
Polar Biology
The snow crab (Chionoecetes opilio) is an Arctic cold-water species native to the northwestern Atlantic Ocean and the northern Pacific Ocean. During the recent decades, a population has established in the Barents Sea. Several aspects of the snow crab
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22750da46db4e0c7434ffe8c3704d28c
https://hdl.handle.net/11250/2984558
https://hdl.handle.net/11250/2984558
Autor:
Jon Albretsen, Jon-Ivar Westgaard, Agneta Hansen, Guldborg Søvik, Per Erik Jorde, Tanja Hanebrekke, Einar M. Nilssen, Torild Johansen
Publikováno v:
ICES Journal of Marine Science
Many marine organisms have a permanent presence both inshore and offshore and spawn in multiple areas, yet their status as separate populations or stocks remain unclear. This is the situation for the northern shrimp (Pandalus borealis) around the Arc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::137088c98681968199ba183605105b23
https://hdl.handle.net/10037/23859
https://hdl.handle.net/10037/23859