Comparative morphology of the sagittal otolith in Serranus spp

Variations in the morphology of saccular otoliths (sagittae) among three sympatric species of the genus Serranus(S. atricauda, S. cabrilla and S. scriba) from the Canary Islands were investigated. Although the otolith gross morphology was similar among species, S. scriba was distinct in having a ros...

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Bibliographic Details
Published in:Journal of fish biology 2003-12, Vol.63 (6), p.1491-1504
Main Authors: Tuset, V. M., Lombarte, A., González, J. A., Pertusa, J. F., Lorente, MaJ
Format: Article
Language:English
Subjects:
Biological and medical sciences
fishes
Fundamental and applied biological sciences. Psychology
General aspects
Marine
morphology
sagitta
Serranus
Serranus atricauda
Serranus cabrilla
Serranus scriba
taxonomy
Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution
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Summary:Variations in the morphology of saccular otoliths (sagittae) among three sympatric species of the genus Serranus(S. atricauda, S. cabrilla and S. scriba) from the Canary Islands were investigated. Although the otolith gross morphology was similar among species, S. scriba was distinct in having a rostrum which had a slight turning at the tip and a more funnel‐like ostium. The shallower water species (S. scriba) had otolith and sulcus areas which were smaller than the deeper water species (S. cabrilla and S. atricauda). The sulcus acusticus and ostium size were correlated with the habit depth of the species, with the highest values in the deepest species, S. cabrilla. The otolith outline shape indices changed with size (total length) of the species, and allowed the separation of the species by means of a discriminate function.
ISSN:0022-1112
1095-8649
DOI:10.1111/j.1095-8649.2003.00262.x