Age, growth, and maturity of the whitebrow skate, Bathyraja minispinosa, from the eastern Bering Sea
Abstract 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. Skates are a common bycatch in groundfish fisheries in the Bering Sea; however, thei...
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsr072 http://academic.oup.com/icesjms/article-pdf/68/7/1426/29141405/fsr072.pdf |
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croxfordunivpr:10.1093/icesjms/fsr072 2023-10-09T21:50:19+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 http://dx.doi.org/10.1093/icesjms/fsr072 http://academic.oup.com/icesjms/article-pdf/68/7/1426/29141405/fsr072.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 68, issue 7, page 1426-1434 ISSN 1095-9289 1054-3139 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2011 croxfordunivpr https://doi.org/10.1093/icesjms/fsr072 2023-09-22T11:15:35Z Abstract 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. 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. Article in Journal/Newspaper Bering Sea Oxford University Press (via Crossref) Bering Sea Pacific ICES Journal of Marine Science 68 7 1426 1434 |
institution |
Open Polar |
collection |
Oxford University Press (via Crossref) |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography Ainsley, Shaara M. Ebert, David A. Cailliet, Gregor M. Age, growth, and maturity of the whitebrow skate, Bathyraja minispinosa, from the eastern Bering Sea |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract 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. 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 |
Article in Journal/Newspaper |
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 (OUP) |
publishDate |
2011 |
url |
http://dx.doi.org/10.1093/icesjms/fsr072 http://academic.oup.com/icesjms/article-pdf/68/7/1426/29141405/fsr072.pdf |
geographic |
Bering Sea Pacific |
geographic_facet |
Bering Sea Pacific |
genre |
Bering Sea |
genre_facet |
Bering Sea |
op_source |
ICES Journal of Marine Science volume 68, issue 7, page 1426-1434 ISSN 1095-9289 1054-3139 |
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 |
_version_ |
1779313369164021760 |