Who eats whom in the Barents Sea?
An overview of the estimates of consumption by predators on the main fish stocks in the Barents Sea is given. The main predators are cod (Gadus morhua), harp seal (Phoca groenlandica) and minke whale (Balaenoptera acutorostrata). The results indicate that cod is the most important predator, consumin...
Published in: | NAMMCO Scientific Publications |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Septentrio Academic Publishing
2000
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Online Access: | https://doi.org/10.7557/3.2975 https://doaj.org/article/e49e1d3f1a1a41ebb738009dbfa4b4a0 |
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ftdoajarticles:oai:doaj.org/article:e49e1d3f1a1a41ebb738009dbfa4b4a0 2023-05-15T15:36:06+02:00 Who eats whom in the Barents Sea? Bjarte Bogstad Tore Haug Sigbjørn Mehl 2000-05-01T00:00:00Z https://doi.org/10.7557/3.2975 https://doaj.org/article/e49e1d3f1a1a41ebb738009dbfa4b4a0 EN eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2975 https://doaj.org/toc/1560-2206 https://doaj.org/toc/2309-2491 1560-2206 2309-2491 doi:10.7557/3.2975 https://doaj.org/article/e49e1d3f1a1a41ebb738009dbfa4b4a0 NAMMCO Scientific Publications, Vol 2, Iss 0, Pp 98-119 (2000) predators consumption fish stocks minke whales Balaenoptera acutorostrata harp seal Phoca groenlandica cod Gadus morhua multispecies model Ecology QH540-549.5 article 2000 ftdoajarticles https://doi.org/10.7557/3.2975 2022-12-31T09:48:23Z An overview of the estimates of consumption by predators on the main fish stocks in the Barents Sea is given. The main predators are cod (Gadus morhua), harp seal (Phoca groenlandica) and minke whale (Balaenoptera acutorostrata). The results indicate that cod is the most important predator, consuming about as much food annually as harp seals and minke whales combined. The consumption estimates, together with data on the amount of fish removed by commercial fisheries, are compared to estimates of the abundance and removal through natural mortality of the various species of fish prey. The consistency between these estimates is discussed. The natural mortality values for cod and haddock used in assessments are found to be reasonably consistent with the consumption estimates. The consumption of capelin is found to be higher than what is available for predation in years of low capelin abundance, while in years of high herring abundance the consumption of herring does not explain all the mortality. The way in which the consumption estimates are and can be utilised in the assessment and management of fish stocks in the Barents Sea using multispecies models and approaches is described. Article in Journal/Newspaper Balaenoptera acutorostrata Barents Sea Gadus morhua Harp Seal minke whale Phoca groenlandica Directory of Open Access Journals: DOAJ Articles Barents Sea NAMMCO Scientific Publications 2 98 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
predators consumption fish stocks minke whales Balaenoptera acutorostrata harp seal Phoca groenlandica cod Gadus morhua multispecies model Ecology QH540-549.5 |
spellingShingle |
predators consumption fish stocks minke whales Balaenoptera acutorostrata harp seal Phoca groenlandica cod Gadus morhua multispecies model Ecology QH540-549.5 Bjarte Bogstad Tore Haug Sigbjørn Mehl Who eats whom in the Barents Sea? |
topic_facet |
predators consumption fish stocks minke whales Balaenoptera acutorostrata harp seal Phoca groenlandica cod Gadus morhua multispecies model Ecology QH540-549.5 |
description |
An overview of the estimates of consumption by predators on the main fish stocks in the Barents Sea is given. The main predators are cod (Gadus morhua), harp seal (Phoca groenlandica) and minke whale (Balaenoptera acutorostrata). The results indicate that cod is the most important predator, consuming about as much food annually as harp seals and minke whales combined. The consumption estimates, together with data on the amount of fish removed by commercial fisheries, are compared to estimates of the abundance and removal through natural mortality of the various species of fish prey. The consistency between these estimates is discussed. The natural mortality values for cod and haddock used in assessments are found to be reasonably consistent with the consumption estimates. The consumption of capelin is found to be higher than what is available for predation in years of low capelin abundance, while in years of high herring abundance the consumption of herring does not explain all the mortality. The way in which the consumption estimates are and can be utilised in the assessment and management of fish stocks in the Barents Sea using multispecies models and approaches is described. |
format |
Article in Journal/Newspaper |
author |
Bjarte Bogstad Tore Haug Sigbjørn Mehl |
author_facet |
Bjarte Bogstad Tore Haug Sigbjørn Mehl |
author_sort |
Bjarte Bogstad |
title |
Who eats whom in the Barents Sea? |
title_short |
Who eats whom in the Barents Sea? |
title_full |
Who eats whom in the Barents Sea? |
title_fullStr |
Who eats whom in the Barents Sea? |
title_full_unstemmed |
Who eats whom in the Barents Sea? |
title_sort |
who eats whom in the barents sea? |
publisher |
Septentrio Academic Publishing |
publishDate |
2000 |
url |
https://doi.org/10.7557/3.2975 https://doaj.org/article/e49e1d3f1a1a41ebb738009dbfa4b4a0 |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
genre |
Balaenoptera acutorostrata Barents Sea Gadus morhua Harp Seal minke whale Phoca groenlandica |
genre_facet |
Balaenoptera acutorostrata Barents Sea Gadus morhua Harp Seal minke whale Phoca groenlandica |
op_source |
NAMMCO Scientific Publications, Vol 2, Iss 0, Pp 98-119 (2000) |
op_relation |
https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2975 https://doaj.org/toc/1560-2206 https://doaj.org/toc/2309-2491 1560-2206 2309-2491 doi:10.7557/3.2975 https://doaj.org/article/e49e1d3f1a1a41ebb738009dbfa4b4a0 |
op_doi |
https://doi.org/10.7557/3.2975 |
container_title |
NAMMCO Scientific Publications |
container_volume |
2 |
container_start_page |
98 |
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1766366429689413632 |