Local recruitment of Atlantic cod and putative source spawning areas in a coastal seascape
Increased knowledge on connectivity is crucial to our understanding of the population dynamics, genetic structure, and biogeography of many coastal species. In coastal marine populations, the main factor for structuring is thought to be the degree of isolation and confinement, limiting genetic excha...
Published in: | ICES Journal of Marine Science |
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Language: | English |
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2021
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Online Access: | https://hdl.handle.net/11250/2838228 https://doi.org/10.1093/icesjms/fsab226 |
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ftimr:oai:imr.brage.unit.no:11250/2838228 2023-05-15T15:26:57+02:00 Local recruitment of Atlantic cod and putative source spawning areas in a coastal seascape Synnes, Ann-Elin Huserbråten, Mats Brockstedt Olsen Knutsen, Halvor Jorde, Per Erik Sodeland, Marte Moland, Even 2021 application/pdf https://hdl.handle.net/11250/2838228 https://doi.org/10.1093/icesjms/fsab226 eng eng ICES Journal of Marine Science. 2021, 78 (10), 3767-3779. urn:issn:1054-3139 https://hdl.handle.net/11250/2838228 https://doi.org/10.1093/icesjms/fsab226 cristin:1967576 3767-3779 78 ICES Journal of Marine Science 10 Peer reviewed Journal article 2021 ftimr https://doi.org/10.1093/icesjms/fsab226 2022-01-26T23:38:54Z Increased knowledge on connectivity is crucial to our understanding of the population dynamics, genetic structure, and biogeography of many coastal species. In coastal marine populations, the main factor for structuring is thought to be the degree of isolation and confinement, limiting genetic exchange between populations. However, many offshore populations use the coastal areas as nursery grounds, but venture back to natal spawning grounds as adults. Therefore, increased knowledge on the connectivity between coastal and offshore populations is crucial to ensure correct assessment of coastal living resources. Here, we combine genetic assignment data of Atlantic cod recruits sampled in 2017 and 2018 (as 0- and 1-group cod, respectively) in outer Oslofjord (eastern Skagerrak) with a biophysical model for the Skagerrak region over the time period from spawning to settlement in 2017. We located the most probable spawning locations of Atlantic cod recruits by “back-tracking” larval drift trajectories and found putative source areas on both sides of the outer Oslofjord, as well as potential upstream sources in the North Sea and Kattegat. Findings are discussed with regards to suitable management strategies and potential for restoration of coastal cod populations. publishedVersion Article in Journal/Newspaper atlantic cod Institute for Marine Research: Brage IMR Kattegat ENVELOPE(9.692,9.692,63.563,63.563) ICES Journal of Marine Science 78 10 3767 3779 |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
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ftimr |
language |
English |
description |
Increased knowledge on connectivity is crucial to our understanding of the population dynamics, genetic structure, and biogeography of many coastal species. In coastal marine populations, the main factor for structuring is thought to be the degree of isolation and confinement, limiting genetic exchange between populations. However, many offshore populations use the coastal areas as nursery grounds, but venture back to natal spawning grounds as adults. Therefore, increased knowledge on the connectivity between coastal and offshore populations is crucial to ensure correct assessment of coastal living resources. Here, we combine genetic assignment data of Atlantic cod recruits sampled in 2017 and 2018 (as 0- and 1-group cod, respectively) in outer Oslofjord (eastern Skagerrak) with a biophysical model for the Skagerrak region over the time period from spawning to settlement in 2017. We located the most probable spawning locations of Atlantic cod recruits by “back-tracking” larval drift trajectories and found putative source areas on both sides of the outer Oslofjord, as well as potential upstream sources in the North Sea and Kattegat. Findings are discussed with regards to suitable management strategies and potential for restoration of coastal cod populations. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Synnes, Ann-Elin Huserbråten, Mats Brockstedt Olsen Knutsen, Halvor Jorde, Per Erik Sodeland, Marte Moland, Even |
spellingShingle |
Synnes, Ann-Elin Huserbråten, Mats Brockstedt Olsen Knutsen, Halvor Jorde, Per Erik Sodeland, Marte Moland, Even Local recruitment of Atlantic cod and putative source spawning areas in a coastal seascape |
author_facet |
Synnes, Ann-Elin Huserbråten, Mats Brockstedt Olsen Knutsen, Halvor Jorde, Per Erik Sodeland, Marte Moland, Even |
author_sort |
Synnes, Ann-Elin |
title |
Local recruitment of Atlantic cod and putative source spawning areas in a coastal seascape |
title_short |
Local recruitment of Atlantic cod and putative source spawning areas in a coastal seascape |
title_full |
Local recruitment of Atlantic cod and putative source spawning areas in a coastal seascape |
title_fullStr |
Local recruitment of Atlantic cod and putative source spawning areas in a coastal seascape |
title_full_unstemmed |
Local recruitment of Atlantic cod and putative source spawning areas in a coastal seascape |
title_sort |
local recruitment of atlantic cod and putative source spawning areas in a coastal seascape |
publishDate |
2021 |
url |
https://hdl.handle.net/11250/2838228 https://doi.org/10.1093/icesjms/fsab226 |
long_lat |
ENVELOPE(9.692,9.692,63.563,63.563) |
geographic |
Kattegat |
geographic_facet |
Kattegat |
genre |
atlantic cod |
genre_facet |
atlantic cod |
op_source |
3767-3779 78 ICES Journal of Marine Science 10 |
op_relation |
ICES Journal of Marine Science. 2021, 78 (10), 3767-3779. urn:issn:1054-3139 https://hdl.handle.net/11250/2838228 https://doi.org/10.1093/icesjms/fsab226 cristin:1967576 |
op_doi |
https://doi.org/10.1093/icesjms/fsab226 |
container_title |
ICES Journal of Marine Science |
container_volume |
78 |
container_issue |
10 |
container_start_page |
3767 |
op_container_end_page |
3779 |
_version_ |
1766357418721148928 |