Population structure in Atlantic cod in the eastern North Sea-Skagerrak-Kattegat: early life stage dispersal and adult migration
Abstract Background In marine fish species, where pelagic egg and larvae drift with ocean currents, population structure has been suggested to be maintained by larval retention due to hydrographic structuring and by homing of adult fish to natal areas. Whilst natal homing of adults has been demonstr...
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ftdatacite:10.6084/m9.figshare.c.3605366.v1 2023-05-15T15:27:03+02:00 Population structure in Atlantic cod in the eastern North Sea-Skagerrak-Kattegat: early life stage dispersal and adult migration André, Carl Svedäng, Henrik Knutsen, Halvor Dahle, Geir Jonsson, Patrik Anna-Karin Ring Sköld, Mattias Jorde, Per 2016 https://dx.doi.org/10.6084/m9.figshare.c.3605366.v1 https://figshare.com/collections/Population_structure_in_Atlantic_cod_in_the_eastern_North_Sea-Skagerrak-Kattegat_early_life_stage_dispersal_and_adult_migration/3605366/1 unknown Figshare https://dx.doi.org/10.1186/s13104-016-1878-9 https://dx.doi.org/10.6084/m9.figshare.c.3605366 CC BY 4.0 https://creativecommons.org/licenses/by/4.0 CC-BY 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology FOS Biological sciences 69999 Biological Sciences not elsewhere classified Developmental Biology Marine Biology Inorganic Chemistry FOS Chemical sciences Collection article 2016 ftdatacite https://doi.org/10.6084/m9.figshare.c.3605366.v1 https://doi.org/10.1186/s13104-016-1878-9 https://doi.org/10.6084/m9.figshare.c.3605366 2021-11-05T12:55:41Z Abstract Background In marine fish species, where pelagic egg and larvae drift with ocean currents, population structure has been suggested to be maintained by larval retention due to hydrographic structuring and by homing of adult fish to natal areas. Whilst natal homing of adults has been demonstrated for anadromous and coral reef fishes, there are few documented examples of philopatric migration in temperate marine fish species. Results Here, we demonstrate temporally stable genetic differentiation among spawning populations of Atlantic cod (Gadus morhua L.), and present genetic and behavioural evidence for larval drift and philopatric migration in the eastern North Sea-Skagerrak-Kattegat area. We show that juvenile cod collected in the eastern Skagerrak and central Kattegat are genetically similar to cod from offshore spawning areas in the eastern North Sea. Genetic assignment of individual 2–5 year old fish indicates that cod residing at, or migrating towards, spawning areas in Kattegat and the North Sea display philopatric behaviours. Conclusions Together these findings suggest a loop between spawning, larval drift and adult return-migrations to spawning areas and underlines that both oceanographic processes and migratory behaviour in the adult phase may be important for stock separation and integrity in marine temperate fishes such as Atlantic cod. Article in Journal/Newspaper atlantic cod Gadus morhua DataCite Metadata Store (German National Library of Science and Technology) Kattegat ENVELOPE(9.692,9.692,63.563,63.563) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology FOS Biological sciences 69999 Biological Sciences not elsewhere classified Developmental Biology Marine Biology Inorganic Chemistry FOS Chemical sciences |
spellingShingle |
59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology FOS Biological sciences 69999 Biological Sciences not elsewhere classified Developmental Biology Marine Biology Inorganic Chemistry FOS Chemical sciences André, Carl Svedäng, Henrik Knutsen, Halvor Dahle, Geir Jonsson, Patrik Anna-Karin Ring Sköld, Mattias Jorde, Per Population structure in Atlantic cod in the eastern North Sea-Skagerrak-Kattegat: early life stage dispersal and adult migration |
topic_facet |
59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology FOS Biological sciences 69999 Biological Sciences not elsewhere classified Developmental Biology Marine Biology Inorganic Chemistry FOS Chemical sciences |
description |
Abstract Background In marine fish species, where pelagic egg and larvae drift with ocean currents, population structure has been suggested to be maintained by larval retention due to hydrographic structuring and by homing of adult fish to natal areas. Whilst natal homing of adults has been demonstrated for anadromous and coral reef fishes, there are few documented examples of philopatric migration in temperate marine fish species. Results Here, we demonstrate temporally stable genetic differentiation among spawning populations of Atlantic cod (Gadus morhua L.), and present genetic and behavioural evidence for larval drift and philopatric migration in the eastern North Sea-Skagerrak-Kattegat area. We show that juvenile cod collected in the eastern Skagerrak and central Kattegat are genetically similar to cod from offshore spawning areas in the eastern North Sea. Genetic assignment of individual 2–5 year old fish indicates that cod residing at, or migrating towards, spawning areas in Kattegat and the North Sea display philopatric behaviours. Conclusions Together these findings suggest a loop between spawning, larval drift and adult return-migrations to spawning areas and underlines that both oceanographic processes and migratory behaviour in the adult phase may be important for stock separation and integrity in marine temperate fishes such as Atlantic cod. |
format |
Article in Journal/Newspaper |
author |
André, Carl Svedäng, Henrik Knutsen, Halvor Dahle, Geir Jonsson, Patrik Anna-Karin Ring Sköld, Mattias Jorde, Per |
author_facet |
André, Carl Svedäng, Henrik Knutsen, Halvor Dahle, Geir Jonsson, Patrik Anna-Karin Ring Sköld, Mattias Jorde, Per |
author_sort |
André, Carl |
title |
Population structure in Atlantic cod in the eastern North Sea-Skagerrak-Kattegat: early life stage dispersal and adult migration |
title_short |
Population structure in Atlantic cod in the eastern North Sea-Skagerrak-Kattegat: early life stage dispersal and adult migration |
title_full |
Population structure in Atlantic cod in the eastern North Sea-Skagerrak-Kattegat: early life stage dispersal and adult migration |
title_fullStr |
Population structure in Atlantic cod in the eastern North Sea-Skagerrak-Kattegat: early life stage dispersal and adult migration |
title_full_unstemmed |
Population structure in Atlantic cod in the eastern North Sea-Skagerrak-Kattegat: early life stage dispersal and adult migration |
title_sort |
population structure in atlantic cod in the eastern north sea-skagerrak-kattegat: early life stage dispersal and adult migration |
publisher |
Figshare |
publishDate |
2016 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.3605366.v1 https://figshare.com/collections/Population_structure_in_Atlantic_cod_in_the_eastern_North_Sea-Skagerrak-Kattegat_early_life_stage_dispersal_and_adult_migration/3605366/1 |
long_lat |
ENVELOPE(9.692,9.692,63.563,63.563) |
geographic |
Kattegat |
geographic_facet |
Kattegat |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_relation |
https://dx.doi.org/10.1186/s13104-016-1878-9 https://dx.doi.org/10.6084/m9.figshare.c.3605366 |
op_rights |
CC BY 4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.c.3605366.v1 https://doi.org/10.1186/s13104-016-1878-9 https://doi.org/10.6084/m9.figshare.c.3605366 |
_version_ |
1766357518949285888 |