Spatial and temporal trends in abundance of Atlantic salmon, Salmo salar, in Newfoundland with emphasis on impacts of the 1992 closure of the commercial fishery
Abstract Closure of the Newfoundland commercial Atlantic salmon, Salmo salar L., fishery in 1992 was the most restrictive measure introduced to help rebuild depressed local stocks of salmon. Here, the effects of the closure are evaluated by analysing trends in abundance since 1984, and estimates of...
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crwiley:10.1111/j.1365-2400.2004.00407.x 2024-09-30T14:32:24+00:00 Spatial and temporal trends in abundance of Atlantic salmon, Salmo salar, in Newfoundland with emphasis on impacts of the 1992 closure of the commercial fishery Dempson, J. B. O'Connell, M. F. Schwarz, C. J. 2004 http://dx.doi.org/10.1111/j.1365-2400.2004.00407.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2400.2004.00407.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2400.2004.00407.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Fisheries Management and Ecology volume 11, issue 6, page 387-402 ISSN 0969-997X 1365-2400 journal-article 2004 crwiley https://doi.org/10.1111/j.1365-2400.2004.00407.x 2024-09-05T05:09:34Z Abstract Closure of the Newfoundland commercial Atlantic salmon, Salmo salar L., fishery in 1992 was the most restrictive measure introduced to help rebuild depressed local stocks of salmon. Here, the effects of the closure are evaluated by analysing trends in abundance since 1984, and estimates of survival in both freshwater and marine environments derived from enumeration of salmon at fish counting facilities. While freshwater production of smolts generally has been maintained, marine survival rates remain low (2–10%), and highly variable. Overall, total stock size differs little from that prior to the closure of the commercial salmon fishery. Spawning escapements have increased by a factor of 2 or 3 in some rivers, but in other areas total returns are lower on average than those prior to the fishery closure. Factors other than exploitation are contributing to lack of stock recovery, resulting in continued conservation concerns. Article in Journal/Newspaper Atlantic salmon Newfoundland Salmo salar Wiley Online Library Fisheries Management and Ecology 11 6 387 402 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Closure of the Newfoundland commercial Atlantic salmon, Salmo salar L., fishery in 1992 was the most restrictive measure introduced to help rebuild depressed local stocks of salmon. Here, the effects of the closure are evaluated by analysing trends in abundance since 1984, and estimates of survival in both freshwater and marine environments derived from enumeration of salmon at fish counting facilities. While freshwater production of smolts generally has been maintained, marine survival rates remain low (2–10%), and highly variable. Overall, total stock size differs little from that prior to the closure of the commercial salmon fishery. Spawning escapements have increased by a factor of 2 or 3 in some rivers, but in other areas total returns are lower on average than those prior to the fishery closure. Factors other than exploitation are contributing to lack of stock recovery, resulting in continued conservation concerns. |
format |
Article in Journal/Newspaper |
author |
Dempson, J. B. O'Connell, M. F. Schwarz, C. J. |
spellingShingle |
Dempson, J. B. O'Connell, M. F. Schwarz, C. J. Spatial and temporal trends in abundance of Atlantic salmon, Salmo salar, in Newfoundland with emphasis on impacts of the 1992 closure of the commercial fishery |
author_facet |
Dempson, J. B. O'Connell, M. F. Schwarz, C. J. |
author_sort |
Dempson, J. B. |
title |
Spatial and temporal trends in abundance of Atlantic salmon, Salmo salar, in Newfoundland with emphasis on impacts of the 1992 closure of the commercial fishery |
title_short |
Spatial and temporal trends in abundance of Atlantic salmon, Salmo salar, in Newfoundland with emphasis on impacts of the 1992 closure of the commercial fishery |
title_full |
Spatial and temporal trends in abundance of Atlantic salmon, Salmo salar, in Newfoundland with emphasis on impacts of the 1992 closure of the commercial fishery |
title_fullStr |
Spatial and temporal trends in abundance of Atlantic salmon, Salmo salar, in Newfoundland with emphasis on impacts of the 1992 closure of the commercial fishery |
title_full_unstemmed |
Spatial and temporal trends in abundance of Atlantic salmon, Salmo salar, in Newfoundland with emphasis on impacts of the 1992 closure of the commercial fishery |
title_sort |
spatial and temporal trends in abundance of atlantic salmon, salmo salar, in newfoundland with emphasis on impacts of the 1992 closure of the commercial fishery |
publisher |
Wiley |
publishDate |
2004 |
url |
http://dx.doi.org/10.1111/j.1365-2400.2004.00407.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2400.2004.00407.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2400.2004.00407.x |
genre |
Atlantic salmon Newfoundland Salmo salar |
genre_facet |
Atlantic salmon Newfoundland Salmo salar |
op_source |
Fisheries Management and Ecology volume 11, issue 6, page 387-402 ISSN 0969-997X 1365-2400 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1365-2400.2004.00407.x |
container_title |
Fisheries Management and Ecology |
container_volume |
11 |
container_issue |
6 |
container_start_page |
387 |
op_container_end_page |
402 |
_version_ |
1811636569614843904 |