Otolith patterns of rockfishes from the northeastern Pacific.
J Morphol
; 276(4): 458-69, 2015 Apr.
Article
em En
| MEDLINE
| ID: mdl-25503537
ABSTRACT
Sagitta otolith shape was analysed in twenty sympatric rockfishes off the southern California coast (Northeastern Pacific). The variation in shape was quantified using canonical variate analysis based on fifth wavelet function decomposition of otolith contour. We selected wavelets because this representation allow the identifications of zones or single morphological points along the contour. The entire otoliths along with four subsections (anterior, ventral, posterodorsal, and anterodorsal) with morphological meaning were examined. Multivariate analyses (MANOVA) showed significant differences in the contours of whole otolith morphology and corresponding subsection among rockfishes. Four patterns were found fusiform, oblong, and two types of elliptic. A redundancy analysis indicated that anterior and anterodorsal subsections contribute most to define the entire otolith shape. Complementarily, the eco-morphological study indicated that the depth distribution and strategies for capture prey were correlated to otolith shape, especially with the anterodorsal zone.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Bass
/
Membrana dos Otólitos
Tipo de estudo:
Prognostic_studies
Limite:
Animals
País como assunto:
America do norte
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article