Morphological variability of the shape of striped red mullet Mullus surmuletus in relation to stock discrimination between the Bay of Biscay and the eastern English Channel.
J Fish Biol
; 84(4): 1063-73, 2014 Apr.
Article
en En
| MEDLINE
| ID: mdl-24689674
ABSTRACT
Truss analysis and length measurements were made on 168 striped red mullet Mullus surmuletus. Multivariate statistical analyses with principal component analysis and partial redundancy analysis (pRDA) were used on these measurements to evaluate the influence of maturity, sex and geographical area distribution on body shape. Truss measurements were important to quantify and discriminate changing body shape, presumably due to changing environmental conditions. Sexual dimorphism was not observed and juveniles could be distinguished from adults based on their body shape. More importantly, M. surmuletus occurring in different geographical areas could be differentiated using this method. Based on pRDA, a significant difference of head morphological dimensions was observed between populations occurring in the eastern English Channel and those occurring in the Bay of Biscay, suggesting that fish from these areas could represent two subpopulations.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Smegmamorpha
Tipo de estudio:
Prognostic_studies
Límite:
Animals
País como asunto:
Europa
Idioma:
En
Año:
2014
Tipo del documento:
Article