Temporal Dynamics of Top Predators Interactions in the Barents Sea
The Barents Sea system is often depicted as a simple food web in terms of number of dominant feeding links. The most conspicuous feeding link is between the Northeast Arctic cod Gadus morhua, the world's largest cod stock which is presently at a historical high level, and capelin Mallotus villo...
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ftoslouniv:oai:www.duo.uio.no:10852/41596 2023-05-15T14:30:29+02:00 Temporal Dynamics of Top Predators Interactions in the Barents Sea Durant, Joel Marcel Skern-Mauritzen, Mette Krasnov, Yuri V. Nikolaeva, Natalia G. Lindstrøm, Ulf Dolgov, Andrey V. 2014-11-04T08:56:26Z http://hdl.handle.net/10852/41596 http://urn.nb.no/URN:NBN:no-46098 https://doi.org/10.1371/journal.pone.0110933 EN eng Public Library of Science (PLoS) http://urn.nb.no/URN:NBN:no-46098 Durant, Joel Marcel Skern-Mauritzen, Mette Krasnov, Yuri V. Nikolaeva, Natalia G. Lindstrøm, Ulf Dolgov, Andrey V. . Temporal Dynamics of Top Predators Interactions in the Barents Sea. PLoS ONE. 2014, 9(11), 1-9 http://hdl.handle.net/10852/41596 1169586 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=PLoS ONE&rft.volume=9&rft.spage=1&rft.date=2014 PLoS ONE 9 11 http://dx.doi.org/10.1371/journal.pone.0110933 URN:NBN:no-46098 Fulltext https://www.duo.uio.no/bitstream/handle/10852/41596/2/Durant+Skern-Mauritzen+etal+%28PlosOne+2014%29.pdf Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ CC-BY 1932-6203 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2014 ftoslouniv https://doi.org/10.1371/journal.pone.0110933 2020-06-21T08:47:58Z The Barents Sea system is often depicted as a simple food web in terms of number of dominant feeding links. The most conspicuous feeding link is between the Northeast Arctic cod Gadus morhua, the world's largest cod stock which is presently at a historical high level, and capelin Mallotus villosus. The system also holds diverse seabird and marine mammal communities. Previous diet studies may suggest that these top predators (cod, bird and sea mammals) compete for food particularly with respect to pelagic fish such as capelin and juvenile herring (Clupea harengus), and krill. In this paper we explored the diet of some Barents Sea top predators (cod, Black-legged kittiwake Rissa tridactyla, Common guillemot Uria aalge, and Minke whale Balaenoptera acutorostrata). We developed a GAM modelling approach to analyse the temporal variation diet composition within and between predators, to explore intra- and inter-specific interactions. The GAM models demonstrated that the seabird diet is temperature dependent while the diet of Minke whale and cod is prey dependent; Minke whale and cod diets depend on the abundance of herring and capelin, respectively. There was significant diet overlap between cod and Minke whale, and between kittiwake and guillemot. In general, the diet overlap between predators increased with changes in herring and krill abundances. The diet overlap models developed in this study may help to identify inter-specific interactions and their dynamics that potentially affect the stocks targeted by fisheries. Article in Journal/Newspaper Arctic cod Arctic Balaenoptera acutorostrata Barents Sea Black-legged Kittiwake common guillemot Gadus morhua minke whale Northeast Arctic cod rissa tridactyla Uria aalge uria Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Arctic Barents Sea Gam ENVELOPE(-57.955,-57.955,-61.923,-61.923) PLoS ONE 9 11 e110933 |
institution |
Open Polar |
collection |
Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
description |
The Barents Sea system is often depicted as a simple food web in terms of number of dominant feeding links. The most conspicuous feeding link is between the Northeast Arctic cod Gadus morhua, the world's largest cod stock which is presently at a historical high level, and capelin Mallotus villosus. The system also holds diverse seabird and marine mammal communities. Previous diet studies may suggest that these top predators (cod, bird and sea mammals) compete for food particularly with respect to pelagic fish such as capelin and juvenile herring (Clupea harengus), and krill. In this paper we explored the diet of some Barents Sea top predators (cod, Black-legged kittiwake Rissa tridactyla, Common guillemot Uria aalge, and Minke whale Balaenoptera acutorostrata). We developed a GAM modelling approach to analyse the temporal variation diet composition within and between predators, to explore intra- and inter-specific interactions. The GAM models demonstrated that the seabird diet is temperature dependent while the diet of Minke whale and cod is prey dependent; Minke whale and cod diets depend on the abundance of herring and capelin, respectively. There was significant diet overlap between cod and Minke whale, and between kittiwake and guillemot. In general, the diet overlap between predators increased with changes in herring and krill abundances. The diet overlap models developed in this study may help to identify inter-specific interactions and their dynamics that potentially affect the stocks targeted by fisheries. |
format |
Article in Journal/Newspaper |
author |
Durant, Joel Marcel Skern-Mauritzen, Mette Krasnov, Yuri V. Nikolaeva, Natalia G. Lindstrøm, Ulf Dolgov, Andrey V. |
spellingShingle |
Durant, Joel Marcel Skern-Mauritzen, Mette Krasnov, Yuri V. Nikolaeva, Natalia G. Lindstrøm, Ulf Dolgov, Andrey V. Temporal Dynamics of Top Predators Interactions in the Barents Sea |
author_facet |
Durant, Joel Marcel Skern-Mauritzen, Mette Krasnov, Yuri V. Nikolaeva, Natalia G. Lindstrøm, Ulf Dolgov, Andrey V. |
author_sort |
Durant, Joel Marcel |
title |
Temporal Dynamics of Top Predators Interactions in the Barents Sea |
title_short |
Temporal Dynamics of Top Predators Interactions in the Barents Sea |
title_full |
Temporal Dynamics of Top Predators Interactions in the Barents Sea |
title_fullStr |
Temporal Dynamics of Top Predators Interactions in the Barents Sea |
title_full_unstemmed |
Temporal Dynamics of Top Predators Interactions in the Barents Sea |
title_sort |
temporal dynamics of top predators interactions in the barents sea |
publisher |
Public Library of Science (PLoS) |
publishDate |
2014 |
url |
http://hdl.handle.net/10852/41596 http://urn.nb.no/URN:NBN:no-46098 https://doi.org/10.1371/journal.pone.0110933 |
long_lat |
ENVELOPE(-57.955,-57.955,-61.923,-61.923) |
geographic |
Arctic Barents Sea Gam |
geographic_facet |
Arctic Barents Sea Gam |
genre |
Arctic cod Arctic Balaenoptera acutorostrata Barents Sea Black-legged Kittiwake common guillemot Gadus morhua minke whale Northeast Arctic cod rissa tridactyla Uria aalge uria |
genre_facet |
Arctic cod Arctic Balaenoptera acutorostrata Barents Sea Black-legged Kittiwake common guillemot Gadus morhua minke whale Northeast Arctic cod rissa tridactyla Uria aalge uria |
op_source |
1932-6203 |
op_relation |
http://urn.nb.no/URN:NBN:no-46098 Durant, Joel Marcel Skern-Mauritzen, Mette Krasnov, Yuri V. Nikolaeva, Natalia G. Lindstrøm, Ulf Dolgov, Andrey V. . Temporal Dynamics of Top Predators Interactions in the Barents Sea. PLoS ONE. 2014, 9(11), 1-9 http://hdl.handle.net/10852/41596 1169586 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=PLoS ONE&rft.volume=9&rft.spage=1&rft.date=2014 PLoS ONE 9 11 http://dx.doi.org/10.1371/journal.pone.0110933 URN:NBN:no-46098 Fulltext https://www.duo.uio.no/bitstream/handle/10852/41596/2/Durant+Skern-Mauritzen+etal+%28PlosOne+2014%29.pdf |
op_rights |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0110933 |
container_title |
PLoS ONE |
container_volume |
9 |
container_issue |
11 |
container_start_page |
e110933 |
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1766304325953388544 |