Multiple configurations and fluctuating trophic control in the Barents Sea food-web.
The Barents Sea is a subarctic shelf sea which has experienced major changes during the past decades. From ecological time-series, three different food-web configurations, reflecting successive shifts of dominance of pelagic fish, demersal fish, and zooplankton, as well as varying trophic control ha...
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ftdoajarticles:oai:doaj.org/article:6a2b29ef44d143f8a0e0f61f235d03cc 2023-05-15T15:38:19+02:00 Multiple configurations and fluctuating trophic control in the Barents Sea food-web. Elliot Sivel Benjamin Planque Ulf Lindstrøm Nigel G Yoccoz 2021-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0254015 https://doaj.org/article/6a2b29ef44d143f8a0e0f61f235d03cc EN eng Public Library of Science (PLoS) https://doi.org/10.1371/journal.pone.0254015 https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0254015 https://doaj.org/article/6a2b29ef44d143f8a0e0f61f235d03cc PLoS ONE, Vol 16, Iss 7, p e0254015 (2021) Medicine R Science Q article 2021 ftdoajarticles https://doi.org/10.1371/journal.pone.0254015 2022-12-31T15:39:53Z The Barents Sea is a subarctic shelf sea which has experienced major changes during the past decades. From ecological time-series, three different food-web configurations, reflecting successive shifts of dominance of pelagic fish, demersal fish, and zooplankton, as well as varying trophic control have been identified in the last decades. This covers a relatively short time-period as available ecological time-series are often relatively short. As we lack information for prior time-periods, we use a chance and necessity model to investigate if there are other possible configurations of the Barents Sea food-web than those observed in the ecological time-series, and if this food-web is characterized by a persistent trophic control. We perform food-web simulations using the Non-Deterministic Network Dynamic model (NDND) for the Barents Sea, identify food-web configurations and compare those to historical reconstructions of food-web dynamics. Biomass configurations fall into four major types and three trophic pathways. Reconstructed data match one of the major biomass configurations but is characterized by a different trophic pathway than most of the simulated configurations. The simulated biomass displays fluctuations between bottom-up and top-down trophic control over time rather than persistent trophic control. Our results show that the configurations we have reconstructed are strongly overlapping with our simulated configurations, though they represent only a subset of the possible configurations of the Barents Sea food-web. Article in Journal/Newspaper Barents Sea Subarctic Directory of Open Access Journals: DOAJ Articles Barents Sea PLOS ONE 16 7 e0254015 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Elliot Sivel Benjamin Planque Ulf Lindstrøm Nigel G Yoccoz Multiple configurations and fluctuating trophic control in the Barents Sea food-web. |
topic_facet |
Medicine R Science Q |
description |
The Barents Sea is a subarctic shelf sea which has experienced major changes during the past decades. From ecological time-series, three different food-web configurations, reflecting successive shifts of dominance of pelagic fish, demersal fish, and zooplankton, as well as varying trophic control have been identified in the last decades. This covers a relatively short time-period as available ecological time-series are often relatively short. As we lack information for prior time-periods, we use a chance and necessity model to investigate if there are other possible configurations of the Barents Sea food-web than those observed in the ecological time-series, and if this food-web is characterized by a persistent trophic control. We perform food-web simulations using the Non-Deterministic Network Dynamic model (NDND) for the Barents Sea, identify food-web configurations and compare those to historical reconstructions of food-web dynamics. Biomass configurations fall into four major types and three trophic pathways. Reconstructed data match one of the major biomass configurations but is characterized by a different trophic pathway than most of the simulated configurations. The simulated biomass displays fluctuations between bottom-up and top-down trophic control over time rather than persistent trophic control. Our results show that the configurations we have reconstructed are strongly overlapping with our simulated configurations, though they represent only a subset of the possible configurations of the Barents Sea food-web. |
format |
Article in Journal/Newspaper |
author |
Elliot Sivel Benjamin Planque Ulf Lindstrøm Nigel G Yoccoz |
author_facet |
Elliot Sivel Benjamin Planque Ulf Lindstrøm Nigel G Yoccoz |
author_sort |
Elliot Sivel |
title |
Multiple configurations and fluctuating trophic control in the Barents Sea food-web. |
title_short |
Multiple configurations and fluctuating trophic control in the Barents Sea food-web. |
title_full |
Multiple configurations and fluctuating trophic control in the Barents Sea food-web. |
title_fullStr |
Multiple configurations and fluctuating trophic control in the Barents Sea food-web. |
title_full_unstemmed |
Multiple configurations and fluctuating trophic control in the Barents Sea food-web. |
title_sort |
multiple configurations and fluctuating trophic control in the barents sea food-web. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2021 |
url |
https://doi.org/10.1371/journal.pone.0254015 https://doaj.org/article/6a2b29ef44d143f8a0e0f61f235d03cc |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
genre |
Barents Sea Subarctic |
genre_facet |
Barents Sea Subarctic |
op_source |
PLoS ONE, Vol 16, Iss 7, p e0254015 (2021) |
op_relation |
https://doi.org/10.1371/journal.pone.0254015 https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0254015 https://doaj.org/article/6a2b29ef44d143f8a0e0f61f235d03cc |
op_doi |
https://doi.org/10.1371/journal.pone.0254015 |
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PLOS ONE |
container_volume |
16 |
container_issue |
7 |
container_start_page |
e0254015 |
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