Journal of fish pathology (한국어병학회지)

The Korean Society of Fish Pathology (한국어병학회)
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Possibility of non-invasive diagnostic method for Kudoa septempunctata using a hyperspectral camera

  • Eung Jun Lee (Department of Marine Life Sciences, Jeju National University) ;
  • Lyu Jin Jun (Department of Marine Life Sciences, Jeju National University) ;
  • Young Juhn Lee (Department of Marine Life Sciences, Jeju National University) ;
  • Yeong Eun Oh (Department of Marine Life Sciences, Jeju National University) ;
  • Sung Hyun Kim (Fishcare laboratory) ;
  • Heung-soe Kim (Globit Co., Ltd) ;
  • Ye Ji Kim (National Fishery Products Quality Management Services, Jeonju regional office) ;
  • Joon Bum Jeong (Department of Marine Life Sciences, Jeju National University)
  • Received : 2024.05.17
  • Accepted : 2024.06.11
  • Published : 2024.06.30
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Abstract

Kudoa septempunctata, a myxozoan parasite, usually presents without any signs and primarily infects adult fish. The invasive diagnostic methods, such as tissue biopsy, can identify pathogens, but cause economic losses because they require killing the fish. In this study, we conducted a monitoring of four fish farms located on Jeju Island, to investigate the potential for non-invasive diagnosis of K. septempunctata using hyperspectral cameras. It provides spectral information from R000_B000_G000 to R255_B255_G255 for a total of 3,282 olive flounder (Paralichthys olivaceus). Each object is imaged with 2,000 data points, allowing comprehensive spectral analysis by comparing images obtained from negative control objects to positive control objects. Noticeable differences were observed in the brightness or pallor of the positive control images. This suggests the potential utility of hyperspectral imaging as a non-invasive diagnostic tool for detecting K. septempunctata infections in fish populations.

Keywords

Acknowledgement

This work was supported by the 2024 education, research and student guidance grant funded by Jeju National University.

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