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Supplemental Information

MATLAB scripts and function used for training and testing the model

DOI: 10.7287/peerj.preprints.1517v1/supp-1

otolith images of Arius maculatus species (Ariidae family) used to train and test the model

DOI: 10.7287/peerj.preprints.1517v1/supp-2

otolith images of Cryptarius truncatus species from Ariidae family

DOI: 10.7287/peerj.preprints.1517v1/supp-3

otolith images of Hexanematichtys sagor species from Ariidae family

DOI: 10.7287/peerj.preprints.1517v1/supp-4

otolith images of Nemapteryx caelata species from Ariidae family

DOI: 10.7287/peerj.preprints.1517v1/supp-5

otolith images of Osteogeneiosus militaris species from Ariidae family

DOI: 10.7287/peerj.preprints.1517v1/supp-6

otolith images of Plicofollis argyropleuron species from Ariidae family

DOI: 10.7287/peerj.preprints.1517v1/supp-7

otolith images of Coilia dussumieri species from Engraulidae family

DOI: 10.7287/peerj.preprints.1517v1/supp-8

otolith images of Setipinna taty species from Engraulidae family

DOI: 10.7287/peerj.preprints.1517v1/supp-9

otolith images of Thryssa hamiltonii species from Engraulidae family

DOI: 10.7287/peerj.preprints.1517v1/supp-10

otolith images of Dendrophysa russelli species from Sciaenidae family

DOI: 10.7287/peerj.preprints.1517v1/supp-11

otolith images of Johnius belangerii species from Sciaenidae family

DOI: 10.7287/peerj.preprints.1517v1/supp-12

otolith images of Johnius carouna species from Sciaenidae family

DOI: 10.7287/peerj.preprints.1517v1/supp-13

otolith images of Otolithes ruber species from Sciaenidae family

DOI: 10.7287/peerj.preprints.1517v1/supp-14

otolith images of Panna microdon species from Sciaenidae family

DOI: 10.7287/peerj.preprints.1517v1/supp-15

Additional Information

Competing Interests

The authors declare that they have no competing interests.

Author Contributions

Nima Salimi performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, prepared figures and/or tables.

Kar Hoe Loh performed the experiments, contributed reagents/materials/analysis tools, reviewed drafts of the paper.

Sarinder Kaur Dhillon conceived and designed the experiments, reviewed drafts of the paper.

Ving Ching Chong conceived and designed the experiments, reviewed drafts of the paper.

Animal Ethics

The following information was supplied relating to ethical approvals (i.e., approving body and any reference numbers):

1. University of Malaya-Institutional Animal Care and Use Committee (UM-IACUC). 2. No approval was required since project was based on dead fish collected from fish landings.

Data Deposition

The following information was supplied regarding data availability:

Data sets (Otolith images) as well as MATLAB codes have been submitted.

Funding

This work was supported by University of Malaya Research Grants (UMRG), RP008-2012C and RP008-2012A. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


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