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  Computer vision based individual fish identification using skin dot pattern

Cisar, P., Bekkozhayeva, D., Movchan, O., Saberioon, M., Schraml, R. (2021): Computer vision based individual fish identification using skin dot pattern. - Scientific Reports, 11, 16904.
https://doi.org/10.1038/s41598-021-96476-4

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 Creators:
Cisar, Petr1, Author
Bekkozhayeva, Dinara1, Author
Movchan, Oleksandr1, Author
Saberioon, Mohammadmehdi2, Author              
Schraml, Rudolf1, Author
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1External Organizations, ou_persistent22              
20 Pre-GFZ, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum, ou_146023              

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 Abstract: Precision fish farming is an emerging concept in aquaculture research and industry, which combines new technologies and data processing methods to enable data-based decision making in fish farming. The concept is based on the automated monitoring of fish, infrastructure, and the environment ideally by contactless methods. The identification of individual fish of the same species within the cultivated group is critical for individualized treatment, biomass estimation and fish state determination. A few studies have shown that fish body patterns can be used for individual identification, but no system for the automation of this exists. We introduced a methodology for fully automatic Atlantic salmon (Salmo salar) individual identification according to the dot patterns on the skin. The method was tested for 328 individuals, with identification accuracy of 100%. We also studied the long-term stability of the patterns (aging) for individual identification over a period of 6 months. The identification accuracy was 100% for 30 fish (out of water images). The methodology can be adapted to any fish species with dot skin patterns. We proved that the methodology can be used as a non-invasive substitute for invasive fish tagging. The non-invasive fish identification opens new posiblities to maintain the fish individually and not as a fish school which is impossible with current invasive fish tagging.

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Language(s): eng - English
 Dates: 20212021
 Publication Status: Finally published
 Pages: -
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 Rev. Type: -
 Identifiers: DOI: 10.1038/s41598-021-96476-4
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Title: Scientific Reports
Source Genre: Journal, SCI, Scopus, OA
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Pages: - Volume / Issue: 11 Sequence Number: 16904 Start / End Page: - Identifier: CoNE: https://gfzpublic.gfz-potsdam.de/cone/journals/resource/journals2_395
Publisher: Springer Nature