The role of spatial distribution for growth and survival of juvenile cod Gadus morhua in the Barents Sea
Abstract While the importance of early life survival and growth variations for population dynamics is well documented, there is still a relatively limited understanding of how survival and growth is affected by the species’ spatial distribution. Using Barents Sea spatial bottom survey data (1994–201...
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsab143 https://academic.oup.com/icesjms/article-pdf/78/8/2700/41764633/fsab143.pdf |
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croxfordunivpr:10.1093/icesjms/fsab143 2023-10-01T03:54:33+02:00 The role of spatial distribution for growth and survival of juvenile cod Gadus morhua in the Barents Sea Durant, Joël M Yaragina, Natalia Stige, Leif Christian Ojaveer, Henn Norwegian Research Council 2021 http://dx.doi.org/10.1093/icesjms/fsab143 https://academic.oup.com/icesjms/article-pdf/78/8/2700/41764633/fsab143.pdf en eng Oxford University Press (OUP) https://creativecommons.org/licenses/by/4.0/ ICES Journal of Marine Science volume 78, issue 8, page 2700-2708 ISSN 1054-3139 1095-9289 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2021 croxfordunivpr https://doi.org/10.1093/icesjms/fsab143 2023-09-08T10:49:12Z Abstract While the importance of early life survival and growth variations for population dynamics is well documented, there is still a relatively limited understanding of how survival and growth is affected by the species’ spatial distribution. Using Barents Sea spatial bottom survey data (1994–2018), we study the spatiotemporal variability of the juvenile Atlantic cod (Gadus morhua) growth and survival. We used indices of the spatial distribution of juvenile cod at age-1 to study the role of distribution for the change in abundance and mean body size through their second winter of life (from age-1 to age-2). Over the 24 years analysed, we found that the location where the age-1 cod are in the Barents Sea matters for their growth and survival. We found that year-classes growing up in the western Barents Sea have higher mortality but faster growth than year-classes distributed farther east. Our results indicate that the biotic and abiotic conditions encountered at the settlement location may influence the spatial survival and growth of age-1 cod and subsequently the population dynamics. Our results underscore the importance of distribution for survival and growth early in life and by providing this essential information has implications for stock assessment and spatial fisheries management. Article in Journal/Newspaper atlantic cod Barents Sea Gadus morhua Oxford University Press (via Crossref) Barents Sea ICES Journal of Marine Science |
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 Durant, Joël M Yaragina, Natalia Stige, Leif Christian The role of spatial distribution for growth and survival of juvenile cod Gadus morhua in the Barents Sea |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract While the importance of early life survival and growth variations for population dynamics is well documented, there is still a relatively limited understanding of how survival and growth is affected by the species’ spatial distribution. Using Barents Sea spatial bottom survey data (1994–2018), we study the spatiotemporal variability of the juvenile Atlantic cod (Gadus morhua) growth and survival. We used indices of the spatial distribution of juvenile cod at age-1 to study the role of distribution for the change in abundance and mean body size through their second winter of life (from age-1 to age-2). Over the 24 years analysed, we found that the location where the age-1 cod are in the Barents Sea matters for their growth and survival. We found that year-classes growing up in the western Barents Sea have higher mortality but faster growth than year-classes distributed farther east. Our results indicate that the biotic and abiotic conditions encountered at the settlement location may influence the spatial survival and growth of age-1 cod and subsequently the population dynamics. Our results underscore the importance of distribution for survival and growth early in life and by providing this essential information has implications for stock assessment and spatial fisheries management. |
author2 |
Ojaveer, Henn Norwegian Research Council |
format |
Article in Journal/Newspaper |
author |
Durant, Joël M Yaragina, Natalia Stige, Leif Christian |
author_facet |
Durant, Joël M Yaragina, Natalia Stige, Leif Christian |
author_sort |
Durant, Joël M |
title |
The role of spatial distribution for growth and survival of juvenile cod Gadus morhua in the Barents Sea |
title_short |
The role of spatial distribution for growth and survival of juvenile cod Gadus morhua in the Barents Sea |
title_full |
The role of spatial distribution for growth and survival of juvenile cod Gadus morhua in the Barents Sea |
title_fullStr |
The role of spatial distribution for growth and survival of juvenile cod Gadus morhua in the Barents Sea |
title_full_unstemmed |
The role of spatial distribution for growth and survival of juvenile cod Gadus morhua in the Barents Sea |
title_sort |
role of spatial distribution for growth and survival of juvenile cod gadus morhua in the barents sea |
publisher |
Oxford University Press (OUP) |
publishDate |
2021 |
url |
http://dx.doi.org/10.1093/icesjms/fsab143 https://academic.oup.com/icesjms/article-pdf/78/8/2700/41764633/fsab143.pdf |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
genre |
atlantic cod Barents Sea Gadus morhua |
genre_facet |
atlantic cod Barents Sea Gadus morhua |
op_source |
ICES Journal of Marine Science volume 78, issue 8, page 2700-2708 ISSN 1054-3139 1095-9289 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1093/icesjms/fsab143 |
container_title |
ICES Journal of Marine Science |
_version_ |
1778522314615291904 |