Otolith shape analysis as a tool for stock discrimination of the blue jack mackerel (Trachurus picturatus) in the northeast Atlantic
The stock structure of the blue jack mackerel, Trachurus picturatus (Osteichthyes, Carangidae), in the Northeast Atlantic is still unknown. The knowledge of this important aspect of the species population dynamics is essential to effectively assess their stocks and manage their fisheries. Otolith sh...
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Online Access: | http://hdl.handle.net/10553/120386 https://doi.org/10.3389/conf.FMARS.2016.05.00115 |
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ftunivlaspalmas:oai:accedacris.ulpgc.es:10553/120386 2023-05-15T17:33:30+02:00 Otolith shape analysis as a tool for stock discrimination of the blue jack mackerel (Trachurus picturatus) in the northeast Atlantic Reis Vasconcelos, Joana Patricia Gonzalez Perez,Jose Antonio Gordo, Leonel S. orcid:0000-0003-3880-2554 BU-BAS 2016 http://hdl.handle.net/10553/120386 https://doi.org/10.3389/conf.FMARS.2016.05.00115 eng eng Frontiers in Marine Science XIX Iberian Symposium on Marine Biology Studies 2296-7745 http://hdl.handle.net/10553/120386 doi:10.3389/conf.FMARS.2016.05.00115 60591805 Sí Frontiers in Marine Science [EISSN 2296-7745], XIX Iberian Symposium on Marine Biology Studies, Porto, Portugal, 5 Sep - 9 Sep, 2016 310503 Localización de peces 310510 Dinámica de las poblaciones Blue jack mackerel Trachurus picturatus Otoliths Shape Analysis Eliptical Fourier analysis Stock discrimination North Atlantic info:eu-repo/semantics/conferenceObject 2016 ftunivlaspalmas https://doi.org/10.3389/conf.FMARS.2016.05.00115 2023-03-01T00:15:38Z The stock structure of the blue jack mackerel, Trachurus picturatus (Osteichthyes, Carangidae), in the Northeast Atlantic is still unknown. The knowledge of this important aspect of the species population dynamics is essential to effectively assess their stocks and manage their fisheries. Otolith shape analysis has been successfully applied in stock identification using the elliptic Fourier approach. This methodology was used to evaluate possible differences in the otolith shape of T. picturatus specimens caught off mainland Portugal (Peniche) and around Madeira and Canary Islands. A total of 300 individuals ranging from 17 to 36 cm in total length, equally distributed by area, were analysed. The multivariate analysis of variance performed on the otolith normalized elliptic Fourier descriptors (NEFDs) revealed significant differences among the three areas. An overall classification success of 86.3% in the canonical discriminant analysis was achieved for both sexes combined. These results suggest the usefulness of otolith shape analysis for stock differentiation of blue jack mackerel from the northeast Atlantic. 0,173 Q3 SCIE Conference Object North Atlantic Northeast Atlantic Universidad de Las Palmas de Gran Canaria: Acceda Frontiers in Marine Science 3 |
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Universidad de Las Palmas de Gran Canaria: Acceda |
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ftunivlaspalmas |
language |
English |
topic |
310503 Localización de peces 310510 Dinámica de las poblaciones Blue jack mackerel Trachurus picturatus Otoliths Shape Analysis Eliptical Fourier analysis Stock discrimination North Atlantic |
spellingShingle |
310503 Localización de peces 310510 Dinámica de las poblaciones Blue jack mackerel Trachurus picturatus Otoliths Shape Analysis Eliptical Fourier analysis Stock discrimination North Atlantic Reis Vasconcelos, Joana Patricia Gonzalez Perez,Jose Antonio Gordo, Leonel S. Otolith shape analysis as a tool for stock discrimination of the blue jack mackerel (Trachurus picturatus) in the northeast Atlantic |
topic_facet |
310503 Localización de peces 310510 Dinámica de las poblaciones Blue jack mackerel Trachurus picturatus Otoliths Shape Analysis Eliptical Fourier analysis Stock discrimination North Atlantic |
description |
The stock structure of the blue jack mackerel, Trachurus picturatus (Osteichthyes, Carangidae), in the Northeast Atlantic is still unknown. The knowledge of this important aspect of the species population dynamics is essential to effectively assess their stocks and manage their fisheries. Otolith shape analysis has been successfully applied in stock identification using the elliptic Fourier approach. This methodology was used to evaluate possible differences in the otolith shape of T. picturatus specimens caught off mainland Portugal (Peniche) and around Madeira and Canary Islands. A total of 300 individuals ranging from 17 to 36 cm in total length, equally distributed by area, were analysed. The multivariate analysis of variance performed on the otolith normalized elliptic Fourier descriptors (NEFDs) revealed significant differences among the three areas. An overall classification success of 86.3% in the canonical discriminant analysis was achieved for both sexes combined. These results suggest the usefulness of otolith shape analysis for stock differentiation of blue jack mackerel from the northeast Atlantic. 0,173 Q3 SCIE |
author2 |
orcid:0000-0003-3880-2554 BU-BAS |
format |
Conference Object |
author |
Reis Vasconcelos, Joana Patricia Gonzalez Perez,Jose Antonio Gordo, Leonel S. |
author_facet |
Reis Vasconcelos, Joana Patricia Gonzalez Perez,Jose Antonio Gordo, Leonel S. |
author_sort |
Reis Vasconcelos, Joana Patricia |
title |
Otolith shape analysis as a tool for stock discrimination of the blue jack mackerel (Trachurus picturatus) in the northeast Atlantic |
title_short |
Otolith shape analysis as a tool for stock discrimination of the blue jack mackerel (Trachurus picturatus) in the northeast Atlantic |
title_full |
Otolith shape analysis as a tool for stock discrimination of the blue jack mackerel (Trachurus picturatus) in the northeast Atlantic |
title_fullStr |
Otolith shape analysis as a tool for stock discrimination of the blue jack mackerel (Trachurus picturatus) in the northeast Atlantic |
title_full_unstemmed |
Otolith shape analysis as a tool for stock discrimination of the blue jack mackerel (Trachurus picturatus) in the northeast Atlantic |
title_sort |
otolith shape analysis as a tool for stock discrimination of the blue jack mackerel (trachurus picturatus) in the northeast atlantic |
publishDate |
2016 |
url |
http://hdl.handle.net/10553/120386 https://doi.org/10.3389/conf.FMARS.2016.05.00115 |
genre |
North Atlantic Northeast Atlantic |
genre_facet |
North Atlantic Northeast Atlantic |
op_source |
Frontiers in Marine Science [EISSN 2296-7745], XIX Iberian Symposium on Marine Biology Studies, Porto, Portugal, 5 Sep - 9 Sep, 2016 |
op_relation |
Frontiers in Marine Science XIX Iberian Symposium on Marine Biology Studies 2296-7745 http://hdl.handle.net/10553/120386 doi:10.3389/conf.FMARS.2016.05.00115 60591805 Sí |
op_doi |
https://doi.org/10.3389/conf.FMARS.2016.05.00115 |
container_title |
Frontiers in Marine Science |
container_volume |
3 |
_version_ |
1766132019160416256 |