Direct ageing of Thunnus thynnus from the eastern Atlantic Ocean and western Mediterranean Sea using dorsal fin spines
This study deals with important methodology issues that affect age estimates of eastern Atlantic bluefin tuna Thunnus thynnus using dorsal fin spines. Nearly 3800 spine sections were used from fish caught in the north‐east Atlantic Ocean and western Mediterranean Sea over a 21 year period. Edge type...
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Online Access: | http://dx.doi.org/10.1111/jfb.12406 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfb.12406 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfb.12406 |
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crwiley:10.1111/jfb.12406 2024-05-19T07:45:37+00:00 Direct ageing of Thunnus thynnus from the eastern Atlantic Ocean and western Mediterranean Sea using dorsal fin spines Luque, P. L. Rodriguez‐Marin, E. Landa, J. Ruiz, M. Quelle, P. Macias, D. Ortiz De Urbina, J. M. Spanish Ministry of Science and Innovation Spanish data collection Programme 2014 http://dx.doi.org/10.1111/jfb.12406 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfb.12406 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfb.12406 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 84, issue 6, page 1876-1903 ISSN 0022-1112 1095-8649 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2014 crwiley https://doi.org/10.1111/jfb.12406 2024-04-22T07:33:46Z This study deals with important methodology issues that affect age estimates of eastern Atlantic bluefin tuna Thunnus thynnus using dorsal fin spines. Nearly 3800 spine sections were used from fish caught in the north‐east Atlantic Ocean and western Mediterranean Sea over a 21 year period. Edge type and marginal increment analyses indicated a yearly periodicity of annulus formation with the translucent bands (50% of occurrence) appearing from October to May. Nucleus vascularization seriously affected specimens older than 6 years, with the disappearance of 40–50% of the presumed annuli by that age. An alternate sectioning location was a clear improvement and this finding is an important contribution to the methodology of using this structure for ageing the full‐length range of eastern T. thynnus . Finally, there were no significant differences between the coefficients of von Bertalanffy growth model estimated from mean length at age data ( L ∞ = 327·4; k = 0·097; t 0 = −0·838) and those estimated from the growth curves accepted for the eastern and western T. thynnus management units. Article in Journal/Newspaper North East Atlantic Wiley Online Library Journal of Fish Biology 84 6 1876 1903 |
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Open Polar |
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Wiley Online Library |
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language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Luque, P. L. Rodriguez‐Marin, E. Landa, J. Ruiz, M. Quelle, P. Macias, D. Ortiz De Urbina, J. M. Direct ageing of Thunnus thynnus from the eastern Atlantic Ocean and western Mediterranean Sea using dorsal fin spines |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
This study deals with important methodology issues that affect age estimates of eastern Atlantic bluefin tuna Thunnus thynnus using dorsal fin spines. Nearly 3800 spine sections were used from fish caught in the north‐east Atlantic Ocean and western Mediterranean Sea over a 21 year period. Edge type and marginal increment analyses indicated a yearly periodicity of annulus formation with the translucent bands (50% of occurrence) appearing from October to May. Nucleus vascularization seriously affected specimens older than 6 years, with the disappearance of 40–50% of the presumed annuli by that age. An alternate sectioning location was a clear improvement and this finding is an important contribution to the methodology of using this structure for ageing the full‐length range of eastern T. thynnus . Finally, there were no significant differences between the coefficients of von Bertalanffy growth model estimated from mean length at age data ( L ∞ = 327·4; k = 0·097; t 0 = −0·838) and those estimated from the growth curves accepted for the eastern and western T. thynnus management units. |
author2 |
Spanish Ministry of Science and Innovation Spanish data collection Programme |
format |
Article in Journal/Newspaper |
author |
Luque, P. L. Rodriguez‐Marin, E. Landa, J. Ruiz, M. Quelle, P. Macias, D. Ortiz De Urbina, J. M. |
author_facet |
Luque, P. L. Rodriguez‐Marin, E. Landa, J. Ruiz, M. Quelle, P. Macias, D. Ortiz De Urbina, J. M. |
author_sort |
Luque, P. L. |
title |
Direct ageing of Thunnus thynnus from the eastern Atlantic Ocean and western Mediterranean Sea using dorsal fin spines |
title_short |
Direct ageing of Thunnus thynnus from the eastern Atlantic Ocean and western Mediterranean Sea using dorsal fin spines |
title_full |
Direct ageing of Thunnus thynnus from the eastern Atlantic Ocean and western Mediterranean Sea using dorsal fin spines |
title_fullStr |
Direct ageing of Thunnus thynnus from the eastern Atlantic Ocean and western Mediterranean Sea using dorsal fin spines |
title_full_unstemmed |
Direct ageing of Thunnus thynnus from the eastern Atlantic Ocean and western Mediterranean Sea using dorsal fin spines |
title_sort |
direct ageing of thunnus thynnus from the eastern atlantic ocean and western mediterranean sea using dorsal fin spines |
publisher |
Wiley |
publishDate |
2014 |
url |
http://dx.doi.org/10.1111/jfb.12406 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfb.12406 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfb.12406 |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_source |
Journal of Fish Biology volume 84, issue 6, page 1876-1903 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/jfb.12406 |
container_title |
Journal of Fish Biology |
container_volume |
84 |
container_issue |
6 |
container_start_page |
1876 |
op_container_end_page |
1903 |
_version_ |
1799485702961889280 |