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A Study on the Otolith of Freshwater Fishes in Malaysia
Mohamad Firdaus Bin Shamsuri
Supervisor: Dr Rumeaida binti Mat Piah
Bachelor of Applied Science (Fisheries)
School of Fisheries and Aquaculture Science
The otolith morphological characteristics and otolith relationship with fish size of
Anabas testudineus, Oreochromis niloticus and Clarias gariepinus were describe in this
study by using image analysis technique which is scanning electron microscope (SEM),
stereomicroscope and drawing using dissecting microscope aided camera Lucida. The
main descriptor of otolith morphology that was examined is shape, dorsal and ventral
margin, sulcus, ostium, colliculum, crista superior and inferior, neck, rostrum and
exicura. The otolith relationship of Anabas testudineus, Oreochromis niloticus and
Clarias gariepinus were examined by using linear regression analysis. Among the
variables, the relationship between otolith weight and total length of right otolith of
Oreochromis niloticus recorded the highest correlation, while the lowest correlation
was the relationship between otolith width and total length of left otolith of Clarias
gariepinus. Therefore, this study could create a foundation for further analysis of
otolith morphology characteristics and otolith relationship for future references.
657 | UMT UNDERGRADUATE RESEARCH DAY 2018