Stock–environment recruitment models for Norwegian spring spawning herring (Clupea harengus)
Different stock–environment recruitment models for Norwegian spring spawning herring (Clupea harengus) are fitted to a time series of spawning stock, recruitment, and temperature data extending back to 1907. In addition to the traditional temperature index from the Barents Sea (the average annual te...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Language: | English |
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2002
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Online Access: | http://hdl.handle.net/11250/108243 https://doi.org/10.1139/F02-002 |
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ftimr:oai:imr.brage.unit.no:11250/108243 2023-05-15T15:38:38+02:00 Stock–environment recruitment models for Norwegian spring spawning herring (Clupea harengus) Fiksen, Øyvind Slotte, Aril 2002 852901 bytes application/pdf http://hdl.handle.net/11250/108243 https://doi.org/10.1139/F02-002 eng eng urn:issn:0706-652X http://hdl.handle.net/11250/108243 http://dx.doi.org/10.1139/F02-002 211-217 59 Canadian Journal of Fisheries and Aquatic Sciences 2 herring sild Barents Sea cod fish stocks torsk fiskebestander Journal article Peer reviewed 2002 ftimr https://doi.org/10.1139/F02-002 2021-09-23T20:15:20Z Different stock–environment recruitment models for Norwegian spring spawning herring (Clupea harengus) are fitted to a time series of spawning stock, recruitment, and temperature data extending back to 1907. In addition to the traditional temperature index from the Barents Sea (the average annual temperature in the Kola transect), we also developed a new index based on the temperature in the larval drift trajectories during early larval life. The models show highly significant effects of both spawning stock and temperature. The inclusion of the temperature term in the stock–recruitment models removes the autocorrelation from the residuals and improves their explanatory ability by 6–9%. We explore the interdependence between recruitment success and subsequent spawning stock biomass and conclude that this is not likely to generate the stock–recruitment relationship. Our analysis suggests that the collapse of the Norwegian spring spawning herring stock in the period 1950–1970 was not caused by reduced recruitment, but by the drop in spawning stock biomass induced by the increased fisheries in this period. Article in Journal/Newspaper Barents Sea Institute for Marine Research: Brage IMR Barents Sea Canadian Journal of Fisheries and Aquatic Sciences 59 2 211 217 |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
topic |
herring sild Barents Sea cod fish stocks torsk fiskebestander |
spellingShingle |
herring sild Barents Sea cod fish stocks torsk fiskebestander Fiksen, Øyvind Slotte, Aril Stock–environment recruitment models for Norwegian spring spawning herring (Clupea harengus) |
topic_facet |
herring sild Barents Sea cod fish stocks torsk fiskebestander |
description |
Different stock–environment recruitment models for Norwegian spring spawning herring (Clupea harengus) are fitted to a time series of spawning stock, recruitment, and temperature data extending back to 1907. In addition to the traditional temperature index from the Barents Sea (the average annual temperature in the Kola transect), we also developed a new index based on the temperature in the larval drift trajectories during early larval life. The models show highly significant effects of both spawning stock and temperature. The inclusion of the temperature term in the stock–recruitment models removes the autocorrelation from the residuals and improves their explanatory ability by 6–9%. We explore the interdependence between recruitment success and subsequent spawning stock biomass and conclude that this is not likely to generate the stock–recruitment relationship. Our analysis suggests that the collapse of the Norwegian spring spawning herring stock in the period 1950–1970 was not caused by reduced recruitment, but by the drop in spawning stock biomass induced by the increased fisheries in this period. |
format |
Article in Journal/Newspaper |
author |
Fiksen, Øyvind Slotte, Aril |
author_facet |
Fiksen, Øyvind Slotte, Aril |
author_sort |
Fiksen, Øyvind |
title |
Stock–environment recruitment models for Norwegian spring spawning herring (Clupea harengus) |
title_short |
Stock–environment recruitment models for Norwegian spring spawning herring (Clupea harengus) |
title_full |
Stock–environment recruitment models for Norwegian spring spawning herring (Clupea harengus) |
title_fullStr |
Stock–environment recruitment models for Norwegian spring spawning herring (Clupea harengus) |
title_full_unstemmed |
Stock–environment recruitment models for Norwegian spring spawning herring (Clupea harengus) |
title_sort |
stock–environment recruitment models for norwegian spring spawning herring (clupea harengus) |
publishDate |
2002 |
url |
http://hdl.handle.net/11250/108243 https://doi.org/10.1139/F02-002 |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
genre |
Barents Sea |
genre_facet |
Barents Sea |
op_source |
211-217 59 Canadian Journal of Fisheries and Aquatic Sciences 2 |
op_relation |
urn:issn:0706-652X http://hdl.handle.net/11250/108243 http://dx.doi.org/10.1139/F02-002 |
op_doi |
https://doi.org/10.1139/F02-002 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
59 |
container_issue |
2 |
container_start_page |
211 |
op_container_end_page |
217 |
_version_ |
1766369823313362944 |