English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/77681
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Comparative morphology of the sagittal otolith in three species of south Caspian gobies

AuthorsBani, A.; Poursaeid, S.; Tuset, Víctor M.
KeywordsCaspian Sea
Fourier analysis
Shape indices
Issue DateApr-2013
CitationJournal of Fish Biology 82(4): 1321-1332 (2013)
AbstractSagittal otolith shapes were investigated in order to identify three sympatric species of south Caspian gobies (Caspian goby Neogobius caspius, deepwater goby Ponticola bathybius and bighead goby Ponticola gorlap). The sagittal otoliths in P. bathybius have a rectangular shape and are thick, whereas in N. caspius they are relatively round and thin. In P. gorlap, otoliths have an elongated shape and are relatively thick. The noticeable difference among the otoliths of the three species is the presence of one anterior and one posterior projection in the otoliths of N. caspius and P. gorlap. Among shape indices, form factor (irregularity of surface area), circularity, aspect ratio and rectangularity are the foremost that indicate interspecific variability. The canonical discriminant analysis correctly classifies 94·7% of the original group cases. The overall analyses show the relevance of applying otolith shape for interspecific distinction of the three species of Caspian gobies.
Description12 páginas, 2 figuras, 6 tablas.
Publisher version (URL)http://dx.doi.org/10.1111/jfb.12073
Appears in Collections:(ICM) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.