The combined effects of warming, ocean acidification, and fishing on the northeast Atlantic cod ( Gadus morhua ) in the Barents Sea
Abstract With a biomass of ∼4 million tonnes, and annual catches of 900 000 tonnes, the northeast Atlantic (NEA) cod stock in the Barents Sea is the world’s largest. Scientists have been trying to explain the variability in recruitment of this stock for over 100 years, in particular connecting it to...
Published in: | ICES Journal of Marine Science |
---|---|
Main Authors: | , , , , , , , |
Other Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Oxford University Press (OUP)
2024
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1093/icesjms/fsae042 https://academic.oup.com/icesjms/advance-article-pdf/doi/10.1093/icesjms/fsae042/57220954/fsae042.pdf |
id |
croxfordunivpr:10.1093/icesjms/fsae042 |
---|---|
record_format |
openpolar |
spelling |
croxfordunivpr:10.1093/icesjms/fsae042 2024-05-12T08:00:57+00:00 The combined effects of warming, ocean acidification, and fishing on the northeast Atlantic cod ( Gadus morhua ) in the Barents Sea Hansen, Cecilie Hjøllo, Solfrid Sætre Skogen, Morten D Mousing, Erik Askov Skern-Mauritzen, Mette Howell, Daniel Ottersen, Geir Browman, Howard I Bartolino, Valerio Institute of Marine Research Fram Centre 2024 http://dx.doi.org/10.1093/icesjms/fsae042 https://academic.oup.com/icesjms/advance-article-pdf/doi/10.1093/icesjms/fsae042/57220954/fsae042.pdf en eng Oxford University Press (OUP) https://creativecommons.org/licenses/by/4.0/ ICES Journal of Marine Science ISSN 1054-3139 1095-9289 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2024 croxfordunivpr https://doi.org/10.1093/icesjms/fsae042 2024-04-18T08:16:04Z Abstract With a biomass of ∼4 million tonnes, and annual catches of 900 000 tonnes, the northeast Atlantic (NEA) cod stock in the Barents Sea is the world’s largest. Scientists have been trying to explain the variability in recruitment of this stock for over 100 years, in particular connecting it to spawning stock biomass and environmental factors such as temperature. It has been suggested that the combination of ocean acidification and global warming will lead to a significant decrease in the spawning stock biomass and an eventual (end of this century) collapse of the NEA cod stock in the Barents Sea. We show that a temperature- and OA-driven decline in recruits will likely lead to a smaller cod stock, but not to a collapse. Instead, the level of fishing pressure and, not least, the choice of the recruitment function applied in simulations and how it relates to temperature, is extremely important when making such forecasts. Applying a non-linear relationship between temperature and spawning stock biomass—as has been done in studies that predict a collapse of the NEA cod stock—does not improve accuracy and, in addition, adds a large decrease in number of recruits that is not biologically supported. Article in Journal/Newspaper atlantic cod Barents Sea Gadus morhua Northeast Atlantic Ocean acidification Oxford University Press Barents Sea ICES Journal of Marine Science |
institution |
Open Polar |
collection |
Oxford University Press |
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 Hansen, Cecilie Hjøllo, Solfrid Sætre Skogen, Morten D Mousing, Erik Askov Skern-Mauritzen, Mette Howell, Daniel Ottersen, Geir Browman, Howard I The combined effects of warming, ocean acidification, and fishing on the northeast Atlantic cod ( Gadus morhua ) in the Barents Sea |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract With a biomass of ∼4 million tonnes, and annual catches of 900 000 tonnes, the northeast Atlantic (NEA) cod stock in the Barents Sea is the world’s largest. Scientists have been trying to explain the variability in recruitment of this stock for over 100 years, in particular connecting it to spawning stock biomass and environmental factors such as temperature. It has been suggested that the combination of ocean acidification and global warming will lead to a significant decrease in the spawning stock biomass and an eventual (end of this century) collapse of the NEA cod stock in the Barents Sea. We show that a temperature- and OA-driven decline in recruits will likely lead to a smaller cod stock, but not to a collapse. Instead, the level of fishing pressure and, not least, the choice of the recruitment function applied in simulations and how it relates to temperature, is extremely important when making such forecasts. Applying a non-linear relationship between temperature and spawning stock biomass—as has been done in studies that predict a collapse of the NEA cod stock—does not improve accuracy and, in addition, adds a large decrease in number of recruits that is not biologically supported. |
author2 |
Bartolino, Valerio Institute of Marine Research Fram Centre |
format |
Article in Journal/Newspaper |
author |
Hansen, Cecilie Hjøllo, Solfrid Sætre Skogen, Morten D Mousing, Erik Askov Skern-Mauritzen, Mette Howell, Daniel Ottersen, Geir Browman, Howard I |
author_facet |
Hansen, Cecilie Hjøllo, Solfrid Sætre Skogen, Morten D Mousing, Erik Askov Skern-Mauritzen, Mette Howell, Daniel Ottersen, Geir Browman, Howard I |
author_sort |
Hansen, Cecilie |
title |
The combined effects of warming, ocean acidification, and fishing on the northeast Atlantic cod ( Gadus morhua ) in the Barents Sea |
title_short |
The combined effects of warming, ocean acidification, and fishing on the northeast Atlantic cod ( Gadus morhua ) in the Barents Sea |
title_full |
The combined effects of warming, ocean acidification, and fishing on the northeast Atlantic cod ( Gadus morhua ) in the Barents Sea |
title_fullStr |
The combined effects of warming, ocean acidification, and fishing on the northeast Atlantic cod ( Gadus morhua ) in the Barents Sea |
title_full_unstemmed |
The combined effects of warming, ocean acidification, and fishing on the northeast Atlantic cod ( Gadus morhua ) in the Barents Sea |
title_sort |
combined effects of warming, ocean acidification, and fishing on the northeast atlantic cod ( gadus morhua ) in the barents sea |
publisher |
Oxford University Press (OUP) |
publishDate |
2024 |
url |
http://dx.doi.org/10.1093/icesjms/fsae042 https://academic.oup.com/icesjms/advance-article-pdf/doi/10.1093/icesjms/fsae042/57220954/fsae042.pdf |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
genre |
atlantic cod Barents Sea Gadus morhua Northeast Atlantic Ocean acidification |
genre_facet |
atlantic cod Barents Sea Gadus morhua Northeast Atlantic Ocean acidification |
op_source |
ICES Journal of Marine Science ISSN 1054-3139 1095-9289 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1093/icesjms/fsae042 |
container_title |
ICES Journal of Marine Science |
_version_ |
1798843013506531328 |