Relevance of cod (Gadus morhua L.) predation for inter-cohort variability in mortality of juvenile Norwegian spring-spawning herring (Clupea harengus L.)
Mortality of juvenile Norwegian spring-spanning herring growing up in the Barents Sea is characterized by a high inter-cohort variability. Variable predation pressure from the north-east Arctic cod stock has been proposed as an explanation, but it has been difficult to test this hypothesis with actu...
Published in: | ICES Journal of Marine Science |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Oxford University Press
1998
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Online Access: | http://hdl.handle.net/10400.1/11593 https://doi.org/10.1006/jmsc.1997.0347 |
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ftunivalgarve:oai:sapientia.ualg.pt:10400.1/11593 2023-05-15T14:30:28+02:00 Relevance of cod (Gadus morhua L.) predation for inter-cohort variability in mortality of juvenile Norwegian spring-spawning herring (Clupea harengus L.) de Barros, P Tirasin, EM Toresen, R 1998-06 http://hdl.handle.net/10400.1/11593 https://doi.org/10.1006/jmsc.1997.0347 eng eng Oxford University Press 1054-3139 1095-9289 http://hdl.handle.net/10400.1/11593 doi:10.1006/jmsc.1997.0347 openAccess http://creativecommons.org/licenses/by/4.0/ CC-BY Barents Sea Eastern newfoundland Class strength Fish stocks Early life Recruitment Prediction Abundance Growth article 1998 ftunivalgarve https://doi.org/10.1006/jmsc.1997.0347 2022-05-30T08:48:21Z Mortality of juvenile Norwegian spring-spanning herring growing up in the Barents Sea is characterized by a high inter-cohort variability. Variable predation pressure from the north-east Arctic cod stock has been proposed as an explanation, but it has been difficult to test this hypothesis with actual field data. Data on the abundance of the main fish stocks in the Barents Sea ecosystem. collected by the Institute of Marine Research in Bergen during the period 1983-1993, were analysed to test this hypothesis. Since capelin has been the major prey of cod during the period investigated, the relationship between herring juvenile mortality and the abundance of cod, capelin and herring was investigated,More than 90% of the inter-cohort variation in mortality of juvenile herring observed during this period was explained by a simple model using the ratio of capelin abundance to the abundance of juvenile cod as the explanatory variable, The relationship is strong enough to warrant using the simple model for improving the short-term forecasts of recruitment to the spawning stock of Norwegian spring-spawning herring. (C) 1998 International Council for the Exploration of the Sea. info:eu-repo/semantics/publishedVersion Article in Journal/Newspaper Arctic cod Arctic Barents Sea Gadus morhua Newfoundland Universidade do Algarve: Sapienta Arctic Barents Sea Bergen ICES Journal of Marine Science 55 3 454 466 |
institution |
Open Polar |
collection |
Universidade do Algarve: Sapienta |
op_collection_id |
ftunivalgarve |
language |
English |
topic |
Barents Sea Eastern newfoundland Class strength Fish stocks Early life Recruitment Prediction Abundance Growth |
spellingShingle |
Barents Sea Eastern newfoundland Class strength Fish stocks Early life Recruitment Prediction Abundance Growth de Barros, P Tirasin, EM Toresen, R Relevance of cod (Gadus morhua L.) predation for inter-cohort variability in mortality of juvenile Norwegian spring-spawning herring (Clupea harengus L.) |
topic_facet |
Barents Sea Eastern newfoundland Class strength Fish stocks Early life Recruitment Prediction Abundance Growth |
description |
Mortality of juvenile Norwegian spring-spanning herring growing up in the Barents Sea is characterized by a high inter-cohort variability. Variable predation pressure from the north-east Arctic cod stock has been proposed as an explanation, but it has been difficult to test this hypothesis with actual field data. Data on the abundance of the main fish stocks in the Barents Sea ecosystem. collected by the Institute of Marine Research in Bergen during the period 1983-1993, were analysed to test this hypothesis. Since capelin has been the major prey of cod during the period investigated, the relationship between herring juvenile mortality and the abundance of cod, capelin and herring was investigated,More than 90% of the inter-cohort variation in mortality of juvenile herring observed during this period was explained by a simple model using the ratio of capelin abundance to the abundance of juvenile cod as the explanatory variable, The relationship is strong enough to warrant using the simple model for improving the short-term forecasts of recruitment to the spawning stock of Norwegian spring-spawning herring. (C) 1998 International Council for the Exploration of the Sea. info:eu-repo/semantics/publishedVersion |
format |
Article in Journal/Newspaper |
author |
de Barros, P Tirasin, EM Toresen, R |
author_facet |
de Barros, P Tirasin, EM Toresen, R |
author_sort |
de Barros, P |
title |
Relevance of cod (Gadus morhua L.) predation for inter-cohort variability in mortality of juvenile Norwegian spring-spawning herring (Clupea harengus L.) |
title_short |
Relevance of cod (Gadus morhua L.) predation for inter-cohort variability in mortality of juvenile Norwegian spring-spawning herring (Clupea harengus L.) |
title_full |
Relevance of cod (Gadus morhua L.) predation for inter-cohort variability in mortality of juvenile Norwegian spring-spawning herring (Clupea harengus L.) |
title_fullStr |
Relevance of cod (Gadus morhua L.) predation for inter-cohort variability in mortality of juvenile Norwegian spring-spawning herring (Clupea harengus L.) |
title_full_unstemmed |
Relevance of cod (Gadus morhua L.) predation for inter-cohort variability in mortality of juvenile Norwegian spring-spawning herring (Clupea harengus L.) |
title_sort |
relevance of cod (gadus morhua l.) predation for inter-cohort variability in mortality of juvenile norwegian spring-spawning herring (clupea harengus l.) |
publisher |
Oxford University Press |
publishDate |
1998 |
url |
http://hdl.handle.net/10400.1/11593 https://doi.org/10.1006/jmsc.1997.0347 |
geographic |
Arctic Barents Sea Bergen |
geographic_facet |
Arctic Barents Sea Bergen |
genre |
Arctic cod Arctic Barents Sea Gadus morhua Newfoundland |
genre_facet |
Arctic cod Arctic Barents Sea Gadus morhua Newfoundland |
op_relation |
1054-3139 1095-9289 http://hdl.handle.net/10400.1/11593 doi:10.1006/jmsc.1997.0347 |
op_rights |
openAccess http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1006/jmsc.1997.0347 |
container_title |
ICES Journal of Marine Science |
container_volume |
55 |
container_issue |
3 |
container_start_page |
454 |
op_container_end_page |
466 |
_version_ |
1766304316940877824 |