A spatial approach to understanding herring population dynamics
Johan Hjort’s so-called second recruitment hypothesis addressed the fate of offspring that drift out of areas suitable for their survival. This hypothesis has forged the concept of a population as a closed life cycle, making countercurrent adult spawning migration a necessary mechanism in balancing...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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crcansciencepubl:10.1139/cjfas-2015-0095 2024-05-19T07:38:10+00:00 A spatial approach to understanding herring population dynamics Huse, Geir Marshall, C. Tara 2016 http://dx.doi.org/10.1139/cjfas-2015-0095 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2015-0095 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2015-0095 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 73, issue 2, page 177-188 ISSN 0706-652X 1205-7533 journal-article 2016 crcansciencepubl https://doi.org/10.1139/cjfas-2015-0095 2024-05-02T06:51:27Z Johan Hjort’s so-called second recruitment hypothesis addressed the fate of offspring that drift out of areas suitable for their survival. This hypothesis has forged the concept of a population as a closed life cycle, making countercurrent adult spawning migration a necessary mechanism in balancing larval drift. The Norwegian spring-spawning (NSS) herring stock (Clupea harengus), the object of much of Hjort’s work, is spread over large areas in the Northeast Atlantic, with spawning along the Norwegian coast, nursery areas in the Barents Sea, feeding areas in the Norwegian Sea, and overwintering areas outside northern Norway. Understanding the spatial dynamics of highly migratory fish stocks such as the NSS herring, therefore, is critical to understanding their population dynamics. Here I review hypotheses on the spatial dynamics of fish focusing on NSS herring and discuss consequences for population dynamics and interactions with other ecosystem components. The results illustrate the key role that strong herring cohorts play both as predators in the Barents and Norwegian seas and as prey on the overwintering and spawning grounds along the Norwegian coast. It is advocated that spatial full life cycle models should be developed for key fish stocks as a meeting place for model assumptions and observations and as a test bed for a multiple hypothesis testing approach. Article in Journal/Newspaper Barents Sea Northeast Atlantic Northern Norway Norwegian Sea Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 73 2 177 188 |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Johan Hjort’s so-called second recruitment hypothesis addressed the fate of offspring that drift out of areas suitable for their survival. This hypothesis has forged the concept of a population as a closed life cycle, making countercurrent adult spawning migration a necessary mechanism in balancing larval drift. The Norwegian spring-spawning (NSS) herring stock (Clupea harengus), the object of much of Hjort’s work, is spread over large areas in the Northeast Atlantic, with spawning along the Norwegian coast, nursery areas in the Barents Sea, feeding areas in the Norwegian Sea, and overwintering areas outside northern Norway. Understanding the spatial dynamics of highly migratory fish stocks such as the NSS herring, therefore, is critical to understanding their population dynamics. Here I review hypotheses on the spatial dynamics of fish focusing on NSS herring and discuss consequences for population dynamics and interactions with other ecosystem components. The results illustrate the key role that strong herring cohorts play both as predators in the Barents and Norwegian seas and as prey on the overwintering and spawning grounds along the Norwegian coast. It is advocated that spatial full life cycle models should be developed for key fish stocks as a meeting place for model assumptions and observations and as a test bed for a multiple hypothesis testing approach. |
author2 |
Marshall, C. Tara |
format |
Article in Journal/Newspaper |
author |
Huse, Geir |
spellingShingle |
Huse, Geir A spatial approach to understanding herring population dynamics |
author_facet |
Huse, Geir |
author_sort |
Huse, Geir |
title |
A spatial approach to understanding herring population dynamics |
title_short |
A spatial approach to understanding herring population dynamics |
title_full |
A spatial approach to understanding herring population dynamics |
title_fullStr |
A spatial approach to understanding herring population dynamics |
title_full_unstemmed |
A spatial approach to understanding herring population dynamics |
title_sort |
spatial approach to understanding herring population dynamics |
publisher |
Canadian Science Publishing |
publishDate |
2016 |
url |
http://dx.doi.org/10.1139/cjfas-2015-0095 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2015-0095 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2015-0095 |
genre |
Barents Sea Northeast Atlantic Northern Norway Norwegian Sea |
genre_facet |
Barents Sea Northeast Atlantic Northern Norway Norwegian Sea |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 73, issue 2, page 177-188 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjfas-2015-0095 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
73 |
container_issue |
2 |
container_start_page |
177 |
op_container_end_page |
188 |
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1799477568320045056 |