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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Online Access: | http://dx.doi.org/10.1093/icesjms/fsaa057 http://academic.oup.com/icesjms/article-pdf/78/2/666/38696283/fsaa057.pdf |
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croxfordunivpr:10.1093/icesjms/fsaa057 2023-10-01T03:52:45+02:00 Effects of climate and spawning stock structure on the spatial distribution of Northeast Arctic cod larvae Endo, Clarissa Akemi Kajiya Vikebø, Frode B Yaragina, Natalia A Hjøllo, Solfrid Sætre Stige, Leif Christian Bartolino, Valerio Research Council of Norway 2020 http://dx.doi.org/10.1093/icesjms/fsaa057 http://academic.oup.com/icesjms/article-pdf/78/2/666/38696283/fsaa057.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model ICES Journal of Marine Science volume 78, issue 2, page 666-679 ISSN 1054-3139 1095-9289 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2020 croxfordunivpr https://doi.org/10.1093/icesjms/fsaa057 2023-09-08T10:49:48Z 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 cod Arctic Barents Sea Northeast Arctic cod Oxford University Press (via Crossref) Arctic Barents Sea ICES Journal of Marine Science 78 2 666 679 |
institution |
Open Polar |
collection |
Oxford University Press (via Crossref) |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography Endo, Clarissa Akemi Kajiya Vikebø, Frode B 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 |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
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. |
author2 |
Bartolino, Valerio Research Council of Norway |
format |
Article in Journal/Newspaper |
author |
Endo, Clarissa Akemi Kajiya Vikebø, Frode B Yaragina, Natalia A Hjøllo, Solfrid Sætre Stige, Leif Christian |
author_facet |
Endo, Clarissa Akemi Kajiya Vikebø, Frode B Yaragina, Natalia A Hjøllo, Solfrid Sætre Stige, Leif Christian |
author_sort |
Endo, Clarissa Akemi Kajiya |
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 |
publisher |
Oxford University Press (OUP) |
publishDate |
2020 |
url |
http://dx.doi.org/10.1093/icesjms/fsaa057 http://academic.oup.com/icesjms/article-pdf/78/2/666/38696283/fsaa057.pdf |
geographic |
Arctic Barents Sea |
geographic_facet |
Arctic Barents Sea |
genre |
Arctic cod Arctic Barents Sea Northeast Arctic cod |
genre_facet |
Arctic cod Arctic Barents Sea Northeast Arctic cod |
op_source |
ICES Journal of Marine Science volume 78, issue 2, page 666-679 ISSN 1054-3139 1095-9289 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model |
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_ |
1778518890899308544 |