Combined multiple 2D views (proximal, anterior and ventral aspects) of the sagittal otolith are proposed here as a method to capture shape information for fish classification. Classification performance of single view compared with combined 2D views show improved classification accuracy of the latter, for nine species of Sciaenidae. The effects of shape description methods (shape indices, Procr...

This work highlights the role of otolithic morphometrics, shape indices and ultrastructure in the identification of three Mullidae species from the Red Sea. Differences in otolithic measurements were detectable in all three-goatfish species. The statistical analysis of otolithic morphometric parameters showed that otolithic measurements are good indicators of fish size. For all three species, t...

Pagellus acarne is found in coastal waters worldwide and it includes important species of commercial recreational fisheries. In this study, 16 morphometric variables the sagittal otolith, including six characters, shape indices, four ecomorphological indexes, were investigated for first time among P. stocks collected from Aegean Marmara Seas coasts Turkey. Statistically significant differences ...

The identification of fish species using otolith shape has been common in many fields the marine science. Different analytical processes can be applied for morphological discrimination, but reviewing literature we have found conceptual and statistical limitations use indices wavelets (contour analysis), being specially worrying first case due to their widespread routine use. In present study, 4...

European perch undergoes several ontogenetic dietary shifts during its lifetime. The present study focused on the variability in otolith shape caused by changes this species. A total of 172 specimens (7.5 to 27.5 cm TL) were caught local fishermen Lake Ladik from April November 2019. Shape indices (SIs) and elliptic Fourier coefficients (EFCs) calculated for each otolith. To detect shape, SIs E...

In this study, otolith morphology and otolith contour from big-scale sand smelt, Atherina boyeri were analyzed in Lake Eğirdir and Lake İznik (natural lakes), and Hirfanlı Dam Lake (artificial lake). The otolith contour and sixteen otolith morphological characters such as width, depth, shape, sulcus acusticus shape, ostium, cauda, rostrum size-shape, and thickness, antirostrum size-shape, and t...

In this study, otolith morphology and otolith contour from big-scale sand smelt, Atherina boyeri were analyzed in Lake Eğirdir and Lake İznik (natural lakes), and Hirfanlı Dam Lake (artificial lake). The otolith contour and sixteen otolith morphological characters such as width, depth, shape, sulcus acusticus shape, ostium, cauda, rostrum size-shape, and thickness, antirostrum size-shape, and t...

Otoliths are paired calcified structures in the inner ear of teleosts that function hearing and balance. In this study, use otolith morphometrics shape analysis were explored to delineate redfin species under genus Decapterus from Sulu Sea, Philippines, namely, kurroides, D. smithvanizi, tabl. Results showed mean shapes unique within (p < 0.001). The size-related (OW—otolith weight, OL—otoli...

Otolith morphometrics have been shown to provide a practical basis for stock discrimination and subsequent fisheries management. However, the determinants of otolith shape are not fully understood and analysis does not distinguish between genotype and environmentally induced differences. In this context, understanding how those 2 components act synergetically on the otolith shape is fundamental...