Age, growth, and maturity of the whitebrow skate, Bathyraja minispinosa, from the eastern Bering Sea
<qd> Ainsley, S. M., Ebert, D. A., and Cailliet, G. M. 2011. Age, growth, and maturity of the whitebrow skate, Bathyraja minispinosa , from the eastern Bering Sea. – ICES Journal of Marine Science, 68: 1426–1434. </qd>Skates are a common bycatch in groundfish fisheries in the Bering Sea;...
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fthighwire:oai:open-archive.highwire.org:icesjms:68/7/1426 2023-05-15T15:43:10+02:00 Age, growth, and maturity of the whitebrow skate, Bathyraja minispinosa, from the eastern Bering Sea Ainsley, Shaara M. Ebert, David A. Cailliet, Gregor M. 2011-07-01 00:00:00.0 text/html http://icesjms.oxfordjournals.org/cgi/content/short/68/7/1426 https://doi.org/10.1093/icesjms/fsr072 en eng Oxford University Press http://icesjms.oxfordjournals.org/cgi/content/short/68/7/1426 http://dx.doi.org/10.1093/icesjms/fsr072 Copyright (C) 2011, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer Articles TEXT 2011 fthighwire https://doi.org/10.1093/icesjms/fsr072 2011-07-01T20:56:05Z <qd> Ainsley, S. M., Ebert, D. A., and Cailliet, G. M. 2011. Age, growth, and maturity of the whitebrow skate, Bathyraja minispinosa , from the eastern Bering Sea. – ICES Journal of Marine Science, 68: 1426–1434. </qd>Skates are a common bycatch in groundfish fisheries in the Bering Sea; however, their life-history characteristics are not well known. The study is the first to investigate the age, growth, and age at maturity of Bathyraja minispinosa . Ages were estimated using sectioned vertebrae and several growth models were compared. The Gompertz model was the best fit and no significant differences were detected between sexes for any model. The maximum age estimated was 37 years, and parameter estimates generated from the three-parameter von Bertalanffy model were k = 0.02 year−1 and L ∞ = 146.9 cm total length (TL). Males reached their size at 50% maturity larger than females (70.1 and 67.4 cm, respectively), but no significant differences in the estimated size or age at maturity were found. Whereas B. minispinosa is smaller than many skate species in the eastern Bering Sea, it has a considerably longer estimated lifespan, indicating that size may not be a reliable method of estimating the vulnerability of a rajid species to population declines in the eastern North Pacific. Text Bering Sea HighWire Press (Stanford University) Bering Sea Pacific ICES Journal of Marine Science 68 7 1426 1434 |
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Articles Ainsley, Shaara M. Ebert, David A. Cailliet, Gregor M. Age, growth, and maturity of the whitebrow skate, Bathyraja minispinosa, from the eastern Bering Sea |
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description |
<qd> Ainsley, S. M., Ebert, D. A., and Cailliet, G. M. 2011. Age, growth, and maturity of the whitebrow skate, Bathyraja minispinosa , from the eastern Bering Sea. – ICES Journal of Marine Science, 68: 1426–1434. </qd>Skates are a common bycatch in groundfish fisheries in the Bering Sea; however, their life-history characteristics are not well known. The study is the first to investigate the age, growth, and age at maturity of Bathyraja minispinosa . Ages were estimated using sectioned vertebrae and several growth models were compared. The Gompertz model was the best fit and no significant differences were detected between sexes for any model. The maximum age estimated was 37 years, and parameter estimates generated from the three-parameter von Bertalanffy model were k = 0.02 year−1 and L ∞ = 146.9 cm total length (TL). Males reached their size at 50% maturity larger than females (70.1 and 67.4 cm, respectively), but no significant differences in the estimated size or age at maturity were found. Whereas B. minispinosa is smaller than many skate species in the eastern Bering Sea, it has a considerably longer estimated lifespan, indicating that size may not be a reliable method of estimating the vulnerability of a rajid species to population declines in the eastern North Pacific. |
format |
Text |
author |
Ainsley, Shaara M. Ebert, David A. Cailliet, Gregor M. |
author_facet |
Ainsley, Shaara M. Ebert, David A. Cailliet, Gregor M. |
author_sort |
Ainsley, Shaara M. |
title |
Age, growth, and maturity of the whitebrow skate, Bathyraja minispinosa, from the eastern Bering Sea |
title_short |
Age, growth, and maturity of the whitebrow skate, Bathyraja minispinosa, from the eastern Bering Sea |
title_full |
Age, growth, and maturity of the whitebrow skate, Bathyraja minispinosa, from the eastern Bering Sea |
title_fullStr |
Age, growth, and maturity of the whitebrow skate, Bathyraja minispinosa, from the eastern Bering Sea |
title_full_unstemmed |
Age, growth, and maturity of the whitebrow skate, Bathyraja minispinosa, from the eastern Bering Sea |
title_sort |
age, growth, and maturity of the whitebrow skate, bathyraja minispinosa, from the eastern bering sea |
publisher |
Oxford University Press |
publishDate |
2011 |
url |
http://icesjms.oxfordjournals.org/cgi/content/short/68/7/1426 https://doi.org/10.1093/icesjms/fsr072 |
geographic |
Bering Sea Pacific |
geographic_facet |
Bering Sea Pacific |
genre |
Bering Sea |
genre_facet |
Bering Sea |
op_relation |
http://icesjms.oxfordjournals.org/cgi/content/short/68/7/1426 http://dx.doi.org/10.1093/icesjms/fsr072 |
op_rights |
Copyright (C) 2011, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer |
op_doi |
https://doi.org/10.1093/icesjms/fsr072 |
container_title |
ICES Journal of Marine Science |
container_volume |
68 |
container_issue |
7 |
container_start_page |
1426 |
op_container_end_page |
1434 |
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1766377213142237184 |