Competition among fishermen and fish causes the collapse of Barents Sea capelin
The vast majority of the world's fisheries are typically managed within a single-species perspective, ignoring the dynamic feedback mechanisms generated by the ecological web of which they are a part. Here we show that the dynamics of the Barents Sea capelin (Mallotus villosus), the world'...
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ftpubmed:oai:pubmedcentral.nih.gov:511038 2023-05-15T15:38:19+02:00 Competition among fishermen and fish causes the collapse of Barents Sea capelin Hjermann, Dag Ø Ottersen, Geir Stenseth, Nils Chr. 2004-08-10 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC511038 http://www.ncbi.nlm.nih.gov/pubmed/15286282 https://doi.org/10.1073/pnas.0402904101 en eng National Academy of Sciences http://www.ncbi.nlm.nih.gov/pmc/articles/PMC511038 http://www.ncbi.nlm.nih.gov/pubmed/15286282 http://dx.doi.org/10.1073/pnas.0402904101 Copyright © 2004, The National Academy of Sciences Biological Sciences Text 2004 ftpubmed https://doi.org/10.1073/pnas.0402904101 2013-08-30T02:47:27Z The vast majority of the world's fisheries are typically managed within a single-species perspective, ignoring the dynamic feedback mechanisms generated by the ecological web of which they are a part. Here we show that the dynamics of the Barents Sea capelin (Mallotus villosus), the world's largest stock of this species, is strongly influenced by both within-system ecological feedback mechanisms and the impact of harvesting. Both overexploitation and predation by herring (Clupea harengus) can cause the population to collapse, whereas predation by cod (Gadus morhua) is demonstrated a delay in the stock's recovery after a collapse. Such collapses, which have occurred twice in 20 years, affect the entire Barents Sea ecosystem, a region that for ages has provided food for all of Europe. Text Barents Sea Gadus morhua PubMed Central (PMC) Barents Sea Proceedings of the National Academy of Sciences 101 32 11679 11684 |
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English |
topic |
Biological Sciences |
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Biological Sciences Hjermann, Dag Ø Ottersen, Geir Stenseth, Nils Chr. Competition among fishermen and fish causes the collapse of Barents Sea capelin |
topic_facet |
Biological Sciences |
description |
The vast majority of the world's fisheries are typically managed within a single-species perspective, ignoring the dynamic feedback mechanisms generated by the ecological web of which they are a part. Here we show that the dynamics of the Barents Sea capelin (Mallotus villosus), the world's largest stock of this species, is strongly influenced by both within-system ecological feedback mechanisms and the impact of harvesting. Both overexploitation and predation by herring (Clupea harengus) can cause the population to collapse, whereas predation by cod (Gadus morhua) is demonstrated a delay in the stock's recovery after a collapse. Such collapses, which have occurred twice in 20 years, affect the entire Barents Sea ecosystem, a region that for ages has provided food for all of Europe. |
format |
Text |
author |
Hjermann, Dag Ø Ottersen, Geir Stenseth, Nils Chr. |
author_facet |
Hjermann, Dag Ø Ottersen, Geir Stenseth, Nils Chr. |
author_sort |
Hjermann, Dag Ø |
title |
Competition among fishermen and fish causes the collapse of Barents Sea capelin |
title_short |
Competition among fishermen and fish causes the collapse of Barents Sea capelin |
title_full |
Competition among fishermen and fish causes the collapse of Barents Sea capelin |
title_fullStr |
Competition among fishermen and fish causes the collapse of Barents Sea capelin |
title_full_unstemmed |
Competition among fishermen and fish causes the collapse of Barents Sea capelin |
title_sort |
competition among fishermen and fish causes the collapse of barents sea capelin |
publisher |
National Academy of Sciences |
publishDate |
2004 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC511038 http://www.ncbi.nlm.nih.gov/pubmed/15286282 https://doi.org/10.1073/pnas.0402904101 |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
genre |
Barents Sea Gadus morhua |
genre_facet |
Barents Sea Gadus morhua |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC511038 http://www.ncbi.nlm.nih.gov/pubmed/15286282 http://dx.doi.org/10.1073/pnas.0402904101 |
op_rights |
Copyright © 2004, The National Academy of Sciences |
op_doi |
https://doi.org/10.1073/pnas.0402904101 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
101 |
container_issue |
32 |
container_start_page |
11679 |
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11684 |
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1766369156218748928 |