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20231225115834.0 |
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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1111/gcb.14969
|2 doi
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|a pubmed24n1016.xml
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|a (DE-627)NLM304834408
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Mérillet, Laurène
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Environment outweighs the effects of fishing in regulating demersal community structure in an exploited marine ecosystem
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 23.01.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2020 John Wiley & Sons Ltd.
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|a Global climate change has already caused bottom temperatures of coastal marine ecosystems to increase worldwide. These ecosystems face many pressures, of which fishing is one of the most important. While consequences of global warming on commercial species are studied extensively, the importance of the increase in bottom temperature and of variation in fishing effort is more rarely considered together in these exploited ecosystems. Using a 17 year time series from an international bottom trawl survey, we investigated covariations of an entire demersal ecosystem (101 taxa) with the environment in the Celtic Sea. Our results showed that over the past two decades, biotic communities in the Celtic Sea were likely controlled more by environmental variables than fisheries, probably due to its long history of exploitation. At the scale of the entire zone, relations between taxa and the environment remained stable over the years, but at a local scale, in the center of the Celtic Sea, dynamics were probably driven by interannual variation in temperature. Fishing was an important factor structuring species assemblages at the beginning of the time series (2000) but decreased in importance after 2009. This was most likely caused by a change in spatial distribution of fishing effort, following a change in targeted taxa from nephrops to deeper water anglerfish that did not covary with fishing effort. Increasing bottom temperatures could induce additional changes in the coming years, notably in the cold-water commercial species cod, hake, nephrops, and American plaice. We showed that analyzing covariation is an effective way to screen a large number of taxa and highlight those that may be most susceptible to future simultaneous increases in temperature and changes in exploitation pattern by fisheries. This information can be particularly relevant for ecosystem assessments
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|a Journal Article
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|a Celtic Sea
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| 650 |
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4 |
|a STATICO multivariate analysis
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| 650 |
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4 |
|a bottom trawl survey
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| 650 |
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4 |
|a fishing effort
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| 650 |
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4 |
|a marine resources
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| 650 |
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4 |
|a spatio-temporal dynamics
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| 650 |
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4 |
|a stability
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| 700 |
1 |
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|a Kopp, Dorothée
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Robert, Marianne
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mouchet, Maud
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Pavoine, Sandrine
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Global change biology
|d 1999
|g 26(2020), 4 vom: 14. Apr., Seite 2106-2119
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnns
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| 773 |
1 |
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|g volume:26
|g year:2020
|g number:4
|g day:14
|g month:04
|g pages:2106-2119
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| 856 |
4 |
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|u http://dx.doi.org/10.1111/gcb.14969
|3 Volltext
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