Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/120386
Título: Otolith shape analysis as a tool for stock discrimination of the blue jack mackerel (Trachurus picturatus) in the northeast Atlantic
Autores/as: Reis Vasconcelos, Joana Patricia 
González Pérez, José Antonio 
Gordo, Leonel S.
Clasificación UNESCO: 310503 Localización de peces
310510 Dinámica de las poblaciones
Palabras clave: Blue jack mackerel
Trachurus picturatus
Otoliths
Shape Analysis
Eliptical Fourier analysis, et al.
Fecha de publicación: 2016
Publicación seriada: Frontiers in Marine Science 
Conferencia: XIX Iberian Symposium on Marine Biology Studies (SIEBM 2016) 
Resumen: 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.
URI: http://hdl.handle.net/10553/120386
ISSN: 2296-7745
DOI: 10.3389/conf.FMARS.2016.05.00115
Fuente: Frontiers in Marine Science [EISSN 2296-7745], XIX Iberian Symposium on Marine Biology Studies, Porto, Portugal, 5 Sep - 9 Sep, 2016
Colección:Póster de congreso
Vista completa

Visitas

7
actualizado el 25-feb-2023

Google ScholarTM

Verifica

Altmetric


Comparte



Exporta metadatos



Los elementos en ULPGC accedaCRIS están protegidos por derechos de autor con todos los derechos reservados, a menos que se indique lo contrario.