Testing predictions of the critical period for survival concept using experiments with stocked Atlantic salmon
Two separate field experiments were performed in the U.S.A. and Norway with stocked Atlantic salmon Salmo salar . In the Norwegian experiment, the offspring of early‐spawning fish which had larger eggs and emerged a few days before offspring of later spawning fish had consistently higher survival ra...
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Language: | English |
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crwiley:10.1111/j.0022-1112.2004.00561.x 2024-06-23T07:51:08+00:00 Testing predictions of the critical period for survival concept using experiments with stocked Atlantic salmon Nislow, K. H. Einum, S. Folt, C. L. 2004 http://dx.doi.org/10.1111/j.0022-1112.2004.00561.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.0022-1112.2004.00561.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.0022-1112.2004.00561.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 65, issue s1, page 188-200 ISSN 0022-1112 1095-8649 journal-article 2004 crwiley https://doi.org/10.1111/j.0022-1112.2004.00561.x 2024-06-04T06:36:29Z Two separate field experiments were performed in the U.S.A. and Norway with stocked Atlantic salmon Salmo salar . In the Norwegian experiment, the offspring of early‐spawning fish which had larger eggs and emerged a few days before offspring of later spawning fish had consistently higher survival rates. In the U.S.A. experiment, stream sections with higher proportions of favourable foraging locations during the critical period (the transition from dependence on maternally‐derived yolk reserves to independent feeding) had lower loss rates of fish stocked as unfed fry. These results provide support for the critical period concept (CPC) in Atlantic salmon, underscores the utility of a manipulative approach to achieve further advances in knowledge of Atlantic salmon ecology and provide additional guidance to management and restoration. A mechanistic, conceptual model for density dependence is presented to identify important knowledge gaps that remain to further evaluate the importance of the CPC for Atlantic salmon population regulation. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library Norway Journal of Fish Biology 65 s1 188 200 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Two separate field experiments were performed in the U.S.A. and Norway with stocked Atlantic salmon Salmo salar . In the Norwegian experiment, the offspring of early‐spawning fish which had larger eggs and emerged a few days before offspring of later spawning fish had consistently higher survival rates. In the U.S.A. experiment, stream sections with higher proportions of favourable foraging locations during the critical period (the transition from dependence on maternally‐derived yolk reserves to independent feeding) had lower loss rates of fish stocked as unfed fry. These results provide support for the critical period concept (CPC) in Atlantic salmon, underscores the utility of a manipulative approach to achieve further advances in knowledge of Atlantic salmon ecology and provide additional guidance to management and restoration. A mechanistic, conceptual model for density dependence is presented to identify important knowledge gaps that remain to further evaluate the importance of the CPC for Atlantic salmon population regulation. |
format |
Article in Journal/Newspaper |
author |
Nislow, K. H. Einum, S. Folt, C. L. |
spellingShingle |
Nislow, K. H. Einum, S. Folt, C. L. Testing predictions of the critical period for survival concept using experiments with stocked Atlantic salmon |
author_facet |
Nislow, K. H. Einum, S. Folt, C. L. |
author_sort |
Nislow, K. H. |
title |
Testing predictions of the critical period for survival concept using experiments with stocked Atlantic salmon |
title_short |
Testing predictions of the critical period for survival concept using experiments with stocked Atlantic salmon |
title_full |
Testing predictions of the critical period for survival concept using experiments with stocked Atlantic salmon |
title_fullStr |
Testing predictions of the critical period for survival concept using experiments with stocked Atlantic salmon |
title_full_unstemmed |
Testing predictions of the critical period for survival concept using experiments with stocked Atlantic salmon |
title_sort |
testing predictions of the critical period for survival concept using experiments with stocked atlantic salmon |
publisher |
Wiley |
publishDate |
2004 |
url |
http://dx.doi.org/10.1111/j.0022-1112.2004.00561.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.0022-1112.2004.00561.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.0022-1112.2004.00561.x |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Journal of Fish Biology volume 65, issue s1, page 188-200 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.0022-1112.2004.00561.x |
container_title |
Journal of Fish Biology |
container_volume |
65 |
container_issue |
s1 |
container_start_page |
188 |
op_container_end_page |
200 |
_version_ |
1802642130372395008 |