Contrasting Maturation and Growth of Northern Rock Sole in the Eastern Bering Sea and Gulf of Alaska for the Purpose of Stock Management
Abstract The primary purpose of this study was to provide commercial fishery managers with the age‐ and length‐at‐maturity information about northern rock sole Lepidopsetta polyxystra needed for them to set a sustainable overfishing limit and evaluate the precision of the two predictors of maturity....
Published in: | North American Journal of Fisheries Management |
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crwiley:10.1080/02755947.2012.655845 2024-06-02T08:04:19+00:00 Contrasting Maturation and Growth of Northern Rock Sole in the Eastern Bering Sea and Gulf of Alaska for the Purpose of Stock Management Stark, James W. 2012 http://dx.doi.org/10.1080/02755947.2012.655845 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1080/02755947.2012.655845 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor North American Journal of Fisheries Management volume 32, issue 1, page 93-99 ISSN 0275-5947 1548-8675 journal-article 2012 crwiley https://doi.org/10.1080/02755947.2012.655845 2024-05-03T10:51:13Z Abstract The primary purpose of this study was to provide commercial fishery managers with the age‐ and length‐at‐maturity information about northern rock sole Lepidopsetta polyxystra needed for them to set a sustainable overfishing limit and evaluate the precision of the two predictors of maturity. The estimated length at which 50% of eastern Bering Sea female northern rock sole matured ( L 50 ) was 309 mm, which was significantly smaller than that for Gulf of Alaska females. We determined that the differences in L 50 between populations were probably the result of differences in the rate of female growth. Growth was significantly faster in the Gulf of Alaska than in the eastern Bering Sea during 1996 and 1999. However, by 2007 the growth rates were similar between these areas. The variability in growth was correlated with seawater temperature. There were also differences in the age at which 50% of the females matured ( A 50 ) between the populations in the eastern Bering Sea (9 years) and the Gulf of Alaska (7 years). In contrast, within the eastern Bering Sea, females maintained a similar A 50 over several years, which indicates that age is the most reliable predictor of maturity for northern rock sole. Received April 8, 2011; accepted August 11, 2011 Article in Journal/Newspaper Bering Sea Alaska Wiley Online Library Bering Sea Gulf of Alaska North American Journal of Fisheries Management 32 1 93 99 |
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Wiley Online Library |
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language |
English |
description |
Abstract The primary purpose of this study was to provide commercial fishery managers with the age‐ and length‐at‐maturity information about northern rock sole Lepidopsetta polyxystra needed for them to set a sustainable overfishing limit and evaluate the precision of the two predictors of maturity. The estimated length at which 50% of eastern Bering Sea female northern rock sole matured ( L 50 ) was 309 mm, which was significantly smaller than that for Gulf of Alaska females. We determined that the differences in L 50 between populations were probably the result of differences in the rate of female growth. Growth was significantly faster in the Gulf of Alaska than in the eastern Bering Sea during 1996 and 1999. However, by 2007 the growth rates were similar between these areas. The variability in growth was correlated with seawater temperature. There were also differences in the age at which 50% of the females matured ( A 50 ) between the populations in the eastern Bering Sea (9 years) and the Gulf of Alaska (7 years). In contrast, within the eastern Bering Sea, females maintained a similar A 50 over several years, which indicates that age is the most reliable predictor of maturity for northern rock sole. Received April 8, 2011; accepted August 11, 2011 |
format |
Article in Journal/Newspaper |
author |
Stark, James W. |
spellingShingle |
Stark, James W. Contrasting Maturation and Growth of Northern Rock Sole in the Eastern Bering Sea and Gulf of Alaska for the Purpose of Stock Management |
author_facet |
Stark, James W. |
author_sort |
Stark, James W. |
title |
Contrasting Maturation and Growth of Northern Rock Sole in the Eastern Bering Sea and Gulf of Alaska for the Purpose of Stock Management |
title_short |
Contrasting Maturation and Growth of Northern Rock Sole in the Eastern Bering Sea and Gulf of Alaska for the Purpose of Stock Management |
title_full |
Contrasting Maturation and Growth of Northern Rock Sole in the Eastern Bering Sea and Gulf of Alaska for the Purpose of Stock Management |
title_fullStr |
Contrasting Maturation and Growth of Northern Rock Sole in the Eastern Bering Sea and Gulf of Alaska for the Purpose of Stock Management |
title_full_unstemmed |
Contrasting Maturation and Growth of Northern Rock Sole in the Eastern Bering Sea and Gulf of Alaska for the Purpose of Stock Management |
title_sort |
contrasting maturation and growth of northern rock sole in the eastern bering sea and gulf of alaska for the purpose of stock management |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1080/02755947.2012.655845 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1080/02755947.2012.655845 |
geographic |
Bering Sea Gulf of Alaska |
geographic_facet |
Bering Sea Gulf of Alaska |
genre |
Bering Sea Alaska |
genre_facet |
Bering Sea Alaska |
op_source |
North American Journal of Fisheries Management volume 32, issue 1, page 93-99 ISSN 0275-5947 1548-8675 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1080/02755947.2012.655845 |
container_title |
North American Journal of Fisheries Management |
container_volume |
32 |
container_issue |
1 |
container_start_page |
93 |
op_container_end_page |
99 |
_version_ |
1800748952592580608 |