Effects of climate and spawning stock structure on the spatial distribution of Northeast Arctic cod larvae
Abstract The spatial distribution of fish early life stages can impact recruitment at later stages and affect population size and resilience. Northeast Arctic (NEA) cod spawning occurs along the Norwegian coast. Eggs, larvae, and pelagic juveniles drift near-surface towards the Barents Sea nursery a...
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ftoslouniv:oai:www.duo.uio.no:10852/79541 2023-05-15T14:27:47+02:00 Effects of climate and spawning stock structure on the spatial distribution of Northeast Arctic cod larvae Endo, Clarissa Vikebø, Frode Bendiksen Yaragina, Natalia A. Hjøllo, Solfrid Sætre Stige, Leif Christian 2020-09-03T10:44:22Z http://hdl.handle.net/10852/79541 http://urn.nb.no/URN:NBN:no-82635 https://doi.org/10.1093/icesjms/fsaa057 EN eng NFR/280468 http://urn.nb.no/URN:NBN:no-82635 Endo, Clarissa Vikebø, Frode Bendiksen Yaragina, Natalia A. Hjøllo, Solfrid Sætre Stige, Leif Christian . Effects of climate and spawning stock structure on the spatial distribution of Northeast Arctic cod larvae. ICES Journal of Marine Science. 2020 http://hdl.handle.net/10852/79541 1826997 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=ICES Journal of Marine Science&rft.volume=&rft.spage=&rft.date=2020 ICES Journal of Marine Science https://doi.org/10.1093/icesjms/fsaa057 URN:NBN:no-82635 Fulltext https://www.duo.uio.no/bitstream/handle/10852/79541/2/Endo_etal_ms_r2_ICESJ_effects_codlarvae_Cristin.pdf 1054-3139 Journal article Tidsskriftartikkel Peer reviewed AcceptedVersion 2020 ftoslouniv https://doi.org/10.1093/icesjms/fsaa057 2021-05-12T22:30:56Z Abstract The spatial distribution of fish early life stages can impact recruitment at later stages and affect population size and resilience. Northeast Arctic (NEA) cod spawning occurs along the Norwegian coast. Eggs, larvae, and pelagic juveniles drift near-surface towards the Barents Sea nursery area. In this study, a 35-year long time series of NEA cod larvae data was analysed in combination with factors that potentially may affect the distribution of eggs and larvae. These factors included biological aspects of the spawning stock, and environmental variables, such as water temperature, wind, ocean current, and prey abundance. Our aim was to shed light on how these factors influence larval abundance and distribution and how larval abundance and distribution influenced recruitment at age 3. We found that biomass and mean weight of the spawners were positively associated with larval abundance and that a high liver condition index of the spawners was associated with a north-easterly distribution of the larvae. The environmental variables showed generally weak or no correlations with abundance or distribution of larvae. Lastly, we found significant association between larval abundance and year-class abundance at age 3, while the spatial distribution metrics of the larvae, i.e. distribution extent, mean longitude, and mean latitude, showed no significant association with future year-class abundance. Article in Journal/Newspaper Arctic Arctic cod Arctic Barents Sea Northeast Arctic cod Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Arctic Barents Sea ICES Journal of Marine Science 78 2 666 679 |
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Open Polar |
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Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
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ftoslouniv |
language |
English |
description |
Abstract The spatial distribution of fish early life stages can impact recruitment at later stages and affect population size and resilience. Northeast Arctic (NEA) cod spawning occurs along the Norwegian coast. Eggs, larvae, and pelagic juveniles drift near-surface towards the Barents Sea nursery area. In this study, a 35-year long time series of NEA cod larvae data was analysed in combination with factors that potentially may affect the distribution of eggs and larvae. These factors included biological aspects of the spawning stock, and environmental variables, such as water temperature, wind, ocean current, and prey abundance. Our aim was to shed light on how these factors influence larval abundance and distribution and how larval abundance and distribution influenced recruitment at age 3. We found that biomass and mean weight of the spawners were positively associated with larval abundance and that a high liver condition index of the spawners was associated with a north-easterly distribution of the larvae. The environmental variables showed generally weak or no correlations with abundance or distribution of larvae. Lastly, we found significant association between larval abundance and year-class abundance at age 3, while the spatial distribution metrics of the larvae, i.e. distribution extent, mean longitude, and mean latitude, showed no significant association with future year-class abundance. |
format |
Article in Journal/Newspaper |
author |
Endo, Clarissa Vikebø, Frode Bendiksen Yaragina, Natalia A. Hjøllo, Solfrid Sætre Stige, Leif Christian |
spellingShingle |
Endo, Clarissa Vikebø, Frode Bendiksen Yaragina, Natalia A. Hjøllo, Solfrid Sætre Stige, Leif Christian Effects of climate and spawning stock structure on the spatial distribution of Northeast Arctic cod larvae |
author_facet |
Endo, Clarissa Vikebø, Frode Bendiksen Yaragina, Natalia A. Hjøllo, Solfrid Sætre Stige, Leif Christian |
author_sort |
Endo, Clarissa |
title |
Effects of climate and spawning stock structure on the spatial distribution of Northeast Arctic cod larvae |
title_short |
Effects of climate and spawning stock structure on the spatial distribution of Northeast Arctic cod larvae |
title_full |
Effects of climate and spawning stock structure on the spatial distribution of Northeast Arctic cod larvae |
title_fullStr |
Effects of climate and spawning stock structure on the spatial distribution of Northeast Arctic cod larvae |
title_full_unstemmed |
Effects of climate and spawning stock structure on the spatial distribution of Northeast Arctic cod larvae |
title_sort |
effects of climate and spawning stock structure on the spatial distribution of northeast arctic cod larvae |
publishDate |
2020 |
url |
http://hdl.handle.net/10852/79541 http://urn.nb.no/URN:NBN:no-82635 https://doi.org/10.1093/icesjms/fsaa057 |
geographic |
Arctic Barents Sea |
geographic_facet |
Arctic Barents Sea |
genre |
Arctic Arctic cod Arctic Barents Sea Northeast Arctic cod |
genre_facet |
Arctic Arctic cod Arctic Barents Sea Northeast Arctic cod |
op_source |
1054-3139 |
op_relation |
NFR/280468 http://urn.nb.no/URN:NBN:no-82635 Endo, Clarissa Vikebø, Frode Bendiksen Yaragina, Natalia A. Hjøllo, Solfrid Sætre Stige, Leif Christian . Effects of climate and spawning stock structure on the spatial distribution of Northeast Arctic cod larvae. ICES Journal of Marine Science. 2020 http://hdl.handle.net/10852/79541 1826997 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=ICES Journal of Marine Science&rft.volume=&rft.spage=&rft.date=2020 ICES Journal of Marine Science https://doi.org/10.1093/icesjms/fsaa057 URN:NBN:no-82635 Fulltext https://www.duo.uio.no/bitstream/handle/10852/79541/2/Endo_etal_ms_r2_ICESJ_effects_codlarvae_Cristin.pdf |
op_doi |
https://doi.org/10.1093/icesjms/fsaa057 |
container_title |
ICES Journal of Marine Science |
container_volume |
78 |
container_issue |
2 |
container_start_page |
666 |
op_container_end_page |
679 |
_version_ |
1766301694245732352 |