Age and growth estimates of the thorny skate (Amblyraja radiata) in the western Gulf of Maine
The northwest Atlantic population of thorny skates (Amblyraja radiata) inhabits an area that ranges from Greenland and Hudson Bay, Canada, to South Carolina. Despite such a wide range, very little is known about most aspects of the biology of this species. Recent stock assessment studies in the nort...
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ftaquaticcommons:oai:generic.eprints.org:9649 2023-05-15T16:29:35+02:00 Age and growth estimates of the thorny skate (Amblyraja radiata) in the western Gulf of Maine Sulikowski, James A. Kneebone, Jeff Elzey, Scott Jurek, Joe Danley, Patrick D. Howell, W. Huntting Tsang, Paul C.W. 2005 application/pdf http://aquaticcommons.org/9649/ http://fishbull.noaa.gov/1031/suli.pdf http://aquaticcommons.org/9649/1/suli.pdf en eng http://aquaticcommons.org/9649/1/suli.pdf Sulikowski, James A. and Kneebone, Jeff and Elzey, Scott and Jurek, Joe and Danley, Patrick D. and Howell, W. Huntting and Tsang, Paul C.W. (2005) Age and growth estimates of the thorny skate (Amblyraja radiata) in the western Gulf of Maine. Fishery Bulletin, 103(1), pp. 161-168. Biology Ecology Fisheries Article PeerReviewed 2005 ftaquaticcommons 2020-02-27T09:23:47Z The northwest Atlantic population of thorny skates (Amblyraja radiata) inhabits an area that ranges from Greenland and Hudson Bay, Canada, to South Carolina. Despite such a wide range, very little is known about most aspects of the biology of this species. Recent stock assessment studies in the northeast United States indicate that the biomass of the thorny skate is below the threshold levels mandated by the Sustainable Fisheries Act. In order to gain insight into the life history of this skate, we estimated age and growth for thorny skates, using vertebral band counts from 224 individuals ranging in size from 29 to 105 cm total length (TL). Age bias plots and the coefficient of variation indicated that our aging method represents a nonbiased and precise approach for the age assessment of A. radiata. Marginal increments were significantly different between months (Kruskal-Wallis P<0.001); a distinct trend of increasing monthly increment growth began in August. Age-at-length data were used to determine the von Bertalanffy growth parameters for this population: L∞ = 127 cm (TL) and k= 0.11 for males; L∞ = 120 cm (TL) and k= 0.13 for females. The oldest age estimates obtained for the thorny skate were 16 years for both males and females, which corresponded to total lengths of 103 cm and 105 cm, respectively. Article in Journal/Newspaper Greenland Hudson Bay Northwest Atlantic International Association of Aquatic and Marine Science Libraries and Information Centers (IAMSLIC): Aquatic Commons Canada Greenland Hudson Hudson Bay |
institution |
Open Polar |
collection |
International Association of Aquatic and Marine Science Libraries and Information Centers (IAMSLIC): Aquatic Commons |
op_collection_id |
ftaquaticcommons |
language |
English |
topic |
Biology Ecology Fisheries |
spellingShingle |
Biology Ecology Fisheries Sulikowski, James A. Kneebone, Jeff Elzey, Scott Jurek, Joe Danley, Patrick D. Howell, W. Huntting Tsang, Paul C.W. Age and growth estimates of the thorny skate (Amblyraja radiata) in the western Gulf of Maine |
topic_facet |
Biology Ecology Fisheries |
description |
The northwest Atlantic population of thorny skates (Amblyraja radiata) inhabits an area that ranges from Greenland and Hudson Bay, Canada, to South Carolina. Despite such a wide range, very little is known about most aspects of the biology of this species. Recent stock assessment studies in the northeast United States indicate that the biomass of the thorny skate is below the threshold levels mandated by the Sustainable Fisheries Act. In order to gain insight into the life history of this skate, we estimated age and growth for thorny skates, using vertebral band counts from 224 individuals ranging in size from 29 to 105 cm total length (TL). Age bias plots and the coefficient of variation indicated that our aging method represents a nonbiased and precise approach for the age assessment of A. radiata. Marginal increments were significantly different between months (Kruskal-Wallis P<0.001); a distinct trend of increasing monthly increment growth began in August. Age-at-length data were used to determine the von Bertalanffy growth parameters for this population: L∞ = 127 cm (TL) and k= 0.11 for males; L∞ = 120 cm (TL) and k= 0.13 for females. The oldest age estimates obtained for the thorny skate were 16 years for both males and females, which corresponded to total lengths of 103 cm and 105 cm, respectively. |
format |
Article in Journal/Newspaper |
author |
Sulikowski, James A. Kneebone, Jeff Elzey, Scott Jurek, Joe Danley, Patrick D. Howell, W. Huntting Tsang, Paul C.W. |
author_facet |
Sulikowski, James A. Kneebone, Jeff Elzey, Scott Jurek, Joe Danley, Patrick D. Howell, W. Huntting Tsang, Paul C.W. |
author_sort |
Sulikowski, James A. |
title |
Age and growth estimates of the thorny skate (Amblyraja radiata) in the western Gulf of Maine |
title_short |
Age and growth estimates of the thorny skate (Amblyraja radiata) in the western Gulf of Maine |
title_full |
Age and growth estimates of the thorny skate (Amblyraja radiata) in the western Gulf of Maine |
title_fullStr |
Age and growth estimates of the thorny skate (Amblyraja radiata) in the western Gulf of Maine |
title_full_unstemmed |
Age and growth estimates of the thorny skate (Amblyraja radiata) in the western Gulf of Maine |
title_sort |
age and growth estimates of the thorny skate (amblyraja radiata) in the western gulf of maine |
publishDate |
2005 |
url |
http://aquaticcommons.org/9649/ http://fishbull.noaa.gov/1031/suli.pdf http://aquaticcommons.org/9649/1/suli.pdf |
geographic |
Canada Greenland Hudson Hudson Bay |
geographic_facet |
Canada Greenland Hudson Hudson Bay |
genre |
Greenland Hudson Bay Northwest Atlantic |
genre_facet |
Greenland Hudson Bay Northwest Atlantic |
op_relation |
http://aquaticcommons.org/9649/1/suli.pdf Sulikowski, James A. and Kneebone, Jeff and Elzey, Scott and Jurek, Joe and Danley, Patrick D. and Howell, W. Huntting and Tsang, Paul C.W. (2005) Age and growth estimates of the thorny skate (Amblyraja radiata) in the western Gulf of Maine. Fishery Bulletin, 103(1), pp. 161-168. |
_version_ |
1766019294851760128 |