Global, regional, and cryptic population structure in a high gene-flow transatlantic fish
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 d...
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ftimr:oai:imr.brage.unit.no:11250/3096865 2023-11-12T04:15:05+01:00 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 2023 application/pdf https://hdl.handle.net/11250/3096865 https://doi.org/10.1371/journal.pone.0283351 eng eng PLOS ONE. 2023, 18 (3), . urn:issn:1932-6203 https://hdl.handle.net/11250/3096865 https://doi.org/10.1371/journal.pone.0283351 cristin:2146509 28 18 PLOS ONE 3 Peer reviewed Journal article 2023 ftimr https://doi.org/10.1371/journal.pone.0283351 2023-10-18T22:47:26Z 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 ~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. publishedVersion Article in Journal/Newspaper Barents Sea Greenland Iceland Isfjord* Isfjorden North Atlantic Svalbard Institute for Marine Research: Brage IMR Barents Sea Greenland Kattegat ENVELOPE(9.692,9.692,63.563,63.563) Norway Svalbard PLOS ONE 18 3 e0283351 |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
description |
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 ~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. publishedVersion |
format |
Article in Journal/Newspaper |
author |
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 |
spellingShingle |
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 Global, regional, and cryptic population structure in a high gene-flow transatlantic fish |
author_facet |
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 |
author_sort |
Jansson, Eeva |
title |
Global, regional, and cryptic population structure in a high gene-flow transatlantic fish |
title_short |
Global, regional, and cryptic population structure in a high gene-flow transatlantic fish |
title_full |
Global, regional, and cryptic population structure in a high gene-flow transatlantic fish |
title_fullStr |
Global, regional, and cryptic population structure in a high gene-flow transatlantic fish |
title_full_unstemmed |
Global, regional, and cryptic population structure in a high gene-flow transatlantic fish |
title_sort |
global, regional, and cryptic population structure in a high gene-flow transatlantic fish |
publishDate |
2023 |
url |
https://hdl.handle.net/11250/3096865 https://doi.org/10.1371/journal.pone.0283351 |
long_lat |
ENVELOPE(9.692,9.692,63.563,63.563) |
geographic |
Barents Sea Greenland Kattegat Norway Svalbard |
geographic_facet |
Barents Sea Greenland Kattegat Norway Svalbard |
genre |
Barents Sea Greenland Iceland Isfjord* Isfjorden North Atlantic Svalbard |
genre_facet |
Barents Sea Greenland Iceland Isfjord* Isfjorden North Atlantic Svalbard |
op_source |
28 18 PLOS ONE 3 |
op_relation |
PLOS ONE. 2023, 18 (3), . urn:issn:1932-6203 https://hdl.handle.net/11250/3096865 https://doi.org/10.1371/journal.pone.0283351 cristin:2146509 |
op_doi |
https://doi.org/10.1371/journal.pone.0283351 |
container_title |
PLOS ONE |
container_volume |
18 |
container_issue |
3 |
container_start_page |
e0283351 |
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1782332527447375872 |