Cod in a changing climate Match-mismatch and Threshold for the North Sea cod recruitment
Climatic changes are disrupting otherwise tight trophic interactions between predator and prey. Most of the earlier studies have primarily focused on the temporal dimension of the relationship in the framework of the match-mismatch hypothesis. Using a novel timeseries model explicitly quantifying bo...
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ftimr:oai:imr.brage.unit.no:11250/103685 2023-05-15T16:19:07+02:00 Cod in a changing climate Match-mismatch and Threshold for the North Sea cod recruitment Durant, Joël M. Hjermann, Dag Ø. Stenseth, Nils Christian Beaugrand, Grégory 2005 application/pdf http://hdl.handle.net/11250/103685 eng eng ICES ICES CM documents;2005 / AA:01 This report is not to be quoted without prior consultation with the General Secretary. http://hdl.handle.net/11250/103685 9 s. climate change klimaendringer cod torsk North Sea Nordsjøen VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 Working paper 2005 ftimr 2021-09-23T20:14:59Z Climatic changes are disrupting otherwise tight trophic interactions between predator and prey. Most of the earlier studies have primarily focused on the temporal dimension of the relationship in the framework of the match-mismatch hypothesis. Using a novel timeseries model explicitly quantifying both timing and the abundance component for predator-prey relationship, we show that timing and abundance of food affect the northsea cod (Gadus morhua) recruitment. The system shows a strong effect of matchmismatch; however, it does so in association with food abundance. The food abundance was shown to have a threshold effect on recruitment. This non-linear effect may explain the difficulties to reveal the mechanisms by which environment variability affects marine ecosystems. As such the quantification of the combined effect of abundance and timing of prey on predator dynamics will improve our ability to detect the effect of environmental changes on trophic interactions. Report Gadus morhua Institute for Marine Research: Brage IMR Nordsjøen ENVELOPE(11.435,11.435,64.710,64.710) |
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Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
topic |
climate change klimaendringer cod torsk North Sea Nordsjøen VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 |
spellingShingle |
climate change klimaendringer cod torsk North Sea Nordsjøen VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 Durant, Joël M. Hjermann, Dag Ø. Stenseth, Nils Christian Beaugrand, Grégory Cod in a changing climate Match-mismatch and Threshold for the North Sea cod recruitment |
topic_facet |
climate change klimaendringer cod torsk North Sea Nordsjøen VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 |
description |
Climatic changes are disrupting otherwise tight trophic interactions between predator and prey. Most of the earlier studies have primarily focused on the temporal dimension of the relationship in the framework of the match-mismatch hypothesis. Using a novel timeseries model explicitly quantifying both timing and the abundance component for predator-prey relationship, we show that timing and abundance of food affect the northsea cod (Gadus morhua) recruitment. The system shows a strong effect of matchmismatch; however, it does so in association with food abundance. The food abundance was shown to have a threshold effect on recruitment. This non-linear effect may explain the difficulties to reveal the mechanisms by which environment variability affects marine ecosystems. As such the quantification of the combined effect of abundance and timing of prey on predator dynamics will improve our ability to detect the effect of environmental changes on trophic interactions. |
format |
Report |
author |
Durant, Joël M. Hjermann, Dag Ø. Stenseth, Nils Christian Beaugrand, Grégory |
author_facet |
Durant, Joël M. Hjermann, Dag Ø. Stenseth, Nils Christian Beaugrand, Grégory |
author_sort |
Durant, Joël M. |
title |
Cod in a changing climate Match-mismatch and Threshold for the North Sea cod recruitment |
title_short |
Cod in a changing climate Match-mismatch and Threshold for the North Sea cod recruitment |
title_full |
Cod in a changing climate Match-mismatch and Threshold for the North Sea cod recruitment |
title_fullStr |
Cod in a changing climate Match-mismatch and Threshold for the North Sea cod recruitment |
title_full_unstemmed |
Cod in a changing climate Match-mismatch and Threshold for the North Sea cod recruitment |
title_sort |
cod in a changing climate match-mismatch and threshold for the north sea cod recruitment |
publisher |
ICES |
publishDate |
2005 |
url |
http://hdl.handle.net/11250/103685 |
long_lat |
ENVELOPE(11.435,11.435,64.710,64.710) |
geographic |
Nordsjøen |
geographic_facet |
Nordsjøen |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_source |
9 s. |
op_relation |
ICES CM documents;2005 / AA:01 This report is not to be quoted without prior consultation with the General Secretary. http://hdl.handle.net/11250/103685 |
_version_ |
1766005447379124224 |