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International Journal of Fisheries and Aquatic Studies
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E-ISSN: 2347-5129, P-ISSN: 2394-0506

International Journal of Fisheries and Aquatic Studies

2016, Vol. 4, Issue 6, Part G

Comparative anatomical studies on the otoliths (Ear stones) of some fishes


Author(s): Ahmed MS Omar and Attia AA Moselhy

Abstract: To fulfill this study, the otoliths (ear-stones or crystals) of four fish species were obtained to complete this comparative morphological study. Fifty Tilapia nilotica (Oreochromis niloticus), thirty flat head mullet (Mugil cephalus), thirty Nile catfishes (Clarias lazera) and forty herring fish species (Clupea harengus) were used, where the ear-stones were extracted from the cranial cavity of the fishes, prepared, cleaned by H2O2 and examined anatomically. The results revealed that, there were clear differences between these stones in fish species under investigation. The shape of otolith is ovoid in tilapia, elongated in flat head mullet, rosette shape in catfish and bifid shape in herring fish. These suggest that the morphology of the skulls of different species of fishes could affect the otolithic shape.

Pages: 506-511  |  700 Views  42 Downloads

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How to cite this article:
Ahmed MS Omar, Attia AA Moselhy. Comparative anatomical studies on the otoliths (Ear stones) of some fishes. Int J Fish Aquat Stud 2016;4(6):506-511.
International Journal of Fisheries and Aquatic Studies