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Global, regional, a...
Global, regional, and cryptic population structure in a high gene-flow transatlantic fish
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Jansson, E. (author)
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- Faust, Ellika (author)
- Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper, Tjärnö marinlaboratoriet,Department of marine sciences, Tjärnö Marine Laboratory
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Bekkevold, D. (author)
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Quintela, M. (author)
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Durif, C. (author)
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Halvorsen, K. T. (author)
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Dahle, G. (author)
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Pampoulie, C. (author)
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Kennedy, J. (author)
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Whittaker, B. (author)
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Unneland, L. (author)
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Post, S. (author)
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- André, Carl, 1958 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper, Tjärnö marinlaboratoriet,Department of marine sciences, Tjärnö Marine Laboratory
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Glover, K. A. (author)
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(creator_code:org_t)
- 2023-03-20
- 2023
- English.
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In: Plos One. - : Public Library of Science (PLoS). - 1932-6203. ; 18:3
- Related links:
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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Abstract
Subject headings
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- 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 investigated population genetic structure of lumpfish throughout its natural distribution in the North Atlantic using two approaches: I) 4,393 genome wide SNPs and 95 individuals from 10 locations, and II) 139 discriminatory SNPs and 1,669 individuals from 40 locations. Both approaches identified extensive population genetic structuring with a major split between the East and West Atlantic and a distinct Baltic Sea population, as well as further differentiation of lumpfish from the English Channel, Iceland, and Greenland. The discriminatory loci displayed similar to 2-5 times higher divergence than the genome wide approach, revealing further evidence of local population substructures. Lumpfish from Isfjorden in Svalbard were highly distinct but resembled most fish from Greenland. The Kattegat area in the Baltic transition zone, formed a previously undescribed distinct genetic group. Also, further subdivision was detected within North America, Iceland, West Greenland, Barents Sea, and Norway. Although lumpfish have considerable potential for dispersal and gene-flow, the observed high levels of population structuring throughout the Atlantic suggests that this species may have a natal homing behavior and local populations with adaptive differences. This fine-scale population structure calls for consideration when defining management units for exploitation of lumpfish stocks and in decisions related to sourcing and moving lumpfish for cleaner fish use in salmonid aquaculture.
Subject headings
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Keyword
- lumpfish cyclopterus-lumpus
- r-package
- atlantic cod
- gadus-morhua
- genome scans
- tell us
- diversity
- software
- number
- radseq
- Science & Technology - Other Topics
Publication and Content Type
- ref (subject category)
- art (subject category)
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Plos One
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To the university's database
- By the author/editor
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Jansson, E.
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Faust, Ellika
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Bekkevold, D.
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Quintela, M.
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Durif, C.
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Halvorsen, K. T.
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show more...
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Dahle, G.
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Pampoulie, C.
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Kennedy, J.
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Whittaker, B.
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Unneland, L.
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Post, S.
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André, Carl, 195 ...
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Glover, K. A.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Ecology
- Articles in the publication
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Plos One
- By the university
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University of Gothenburg