Food web dynamics affect Northeast Arctic cod recruitment
Proper management of ecosystems requires an understanding of both the species interactions as well as the effect of climate variation. However, a common problem is that the available time-series are of different lengths. Here, we present a general approach for studying the dynamic structure of such...
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crroyalsociety:10.1098/rspb.2006.0069 2024-06-02T08:00:07+00:00 Food web dynamics affect Northeast Arctic cod recruitment Hjermann, Dag Ø Bogstad, Bjarte Eikeset, Anne Maria Ottersen, Geir Gjøsæter, Harald Stenseth, Nils Chr 2006 http://dx.doi.org/10.1098/rspb.2006.0069 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2006.0069 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2006.0069 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Proceedings of the Royal Society B: Biological Sciences volume 274, issue 1610, page 661-669 ISSN 0962-8452 1471-2954 journal-article 2006 crroyalsociety https://doi.org/10.1098/rspb.2006.0069 2024-05-07T14:16:47Z Proper management of ecosystems requires an understanding of both the species interactions as well as the effect of climate variation. However, a common problem is that the available time-series are of different lengths. Here, we present a general approach for studying the dynamic structure of such interactions. Specifically, we analyse the recruitment of the world's largest cod stock, the Northeast Arctic cod. Studies based on data starting in the 1970–1980s indicate that this stock is affected by temperature through a variety of pathways. However, the value of such studies is somewhat limited by the fact that they are based on a quite specific ecological and climatic situation. Recently, this stock has consisted of fairly young fish and the spawning stock has consisted of relatively few age groups. In this study, we develop a model for the effect of capelin (the cod's main prey) and herring on cod recruitment since 1973. Based on this model, we analyse data on cod, herring and temperature going back to 1921 and find that food-web effects explain a significant part of the cod recruitment variation back to around 1950. Article in Journal/Newspaper Arctic cod Arctic Northeast Arctic cod The Royal Society Arctic Proceedings of the Royal Society B: Biological Sciences 274 1610 661 669 |
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Open Polar |
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The Royal Society |
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crroyalsociety |
language |
English |
description |
Proper management of ecosystems requires an understanding of both the species interactions as well as the effect of climate variation. However, a common problem is that the available time-series are of different lengths. Here, we present a general approach for studying the dynamic structure of such interactions. Specifically, we analyse the recruitment of the world's largest cod stock, the Northeast Arctic cod. Studies based on data starting in the 1970–1980s indicate that this stock is affected by temperature through a variety of pathways. However, the value of such studies is somewhat limited by the fact that they are based on a quite specific ecological and climatic situation. Recently, this stock has consisted of fairly young fish and the spawning stock has consisted of relatively few age groups. In this study, we develop a model for the effect of capelin (the cod's main prey) and herring on cod recruitment since 1973. Based on this model, we analyse data on cod, herring and temperature going back to 1921 and find that food-web effects explain a significant part of the cod recruitment variation back to around 1950. |
format |
Article in Journal/Newspaper |
author |
Hjermann, Dag Ø Bogstad, Bjarte Eikeset, Anne Maria Ottersen, Geir Gjøsæter, Harald Stenseth, Nils Chr |
spellingShingle |
Hjermann, Dag Ø Bogstad, Bjarte Eikeset, Anne Maria Ottersen, Geir Gjøsæter, Harald Stenseth, Nils Chr Food web dynamics affect Northeast Arctic cod recruitment |
author_facet |
Hjermann, Dag Ø Bogstad, Bjarte Eikeset, Anne Maria Ottersen, Geir Gjøsæter, Harald Stenseth, Nils Chr |
author_sort |
Hjermann, Dag Ø |
title |
Food web dynamics affect Northeast Arctic cod recruitment |
title_short |
Food web dynamics affect Northeast Arctic cod recruitment |
title_full |
Food web dynamics affect Northeast Arctic cod recruitment |
title_fullStr |
Food web dynamics affect Northeast Arctic cod recruitment |
title_full_unstemmed |
Food web dynamics affect Northeast Arctic cod recruitment |
title_sort |
food web dynamics affect northeast arctic cod recruitment |
publisher |
The Royal Society |
publishDate |
2006 |
url |
http://dx.doi.org/10.1098/rspb.2006.0069 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2006.0069 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2006.0069 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic cod Arctic Northeast Arctic cod |
genre_facet |
Arctic cod Arctic Northeast Arctic cod |
op_source |
Proceedings of the Royal Society B: Biological Sciences volume 274, issue 1610, page 661-669 ISSN 0962-8452 1471-2954 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rspb.2006.0069 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
274 |
container_issue |
1610 |
container_start_page |
661 |
op_container_end_page |
669 |
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1800744130100330496 |