Antibiotic Susceptibility of Bacterial Pathogens That Infect Olive Flounder ( Paralichthys olivaceus ) Cultivated in Korea

Ye Ji Kim, Lyu Jin Jun, Da Won Lee, Young Juhn Lee, Ye Jin Ko, Yeong Eun Oh, Soo Ji Woo, Myoung Sug Kim, Seung Min Kim and Joon Bum Jeong
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Ye Ji Kim: Department of Marine Life Sciences, Jeju National University, Jeju 63243, Korea
Lyu Jin Jun: Department of Marine Life Sciences, Jeju National University, Jeju 63243, Korea
Da Won Lee: Department of Marine Life Sciences, Jeju National University, Jeju 63243, Korea
Young Juhn Lee: Department of Marine Life Sciences, Jeju National University, Jeju 63243, Korea
Ye Jin Ko: Department of Marine Life Sciences, Jeju National University, Jeju 63243, Korea
Yeong Eun Oh: Department of Marine Life Sciences, Jeju National University, Jeju 63243, Korea
Soo Ji Woo: Pathology Research Division, National Institute of Fisheries Science, Busan 46083, Korea
Myoung Sug Kim: Pathology Research Division, National Institute of Fisheries Science, Busan 46083, Korea
Seung Min Kim: Mokpo Regional Office, National Fishery Products Quality Management, Mokpo 58746, Korea
Joon Bum Jeong: Department of Marine Life Sciences, Jeju National University, Jeju 63243, Korea

IJERPH, 2022, vol. 19, issue 13, 1-13

Abstract: Paralichthys olivaceus (olive flounder) is widely cultivated in Korea. However, data on the antibiotic susceptibility of bacterial pathogens that infect olive flounders in Korea are limited. The susceptibility of 84 strains of 3 pathogenic bacteria ( Streptococcus spp., Vibrio spp., and Edwardsiella piscicida ) to 18 antibiotics was tested using the minimum inhibitory concentration (MIC) panels, and the distribution of the MIC values for each species was confirmed. Among the panel antibiotics, nine commonly used antibiotics were selected, and the multiple antibiotic resistance (MAR) index and antibiotic resistance pattern were indicated using the disk diffusion method. It was confirmed that most of the isolates had a MAR index greater than 0.2, indicating a high-risk source. The distribution patterns of the MIC values and resistance pattern between gram-positive and gram-negative bacteria showed slightly different results. Ampicillin, erythromycin, and clindamycin were more effective against gram-positive bacteria than gram-negative bacteria. However, the MIC values of flumequine for gram-positive bacteria were higher than those of gram-negative bacteria. Through the distribution patterns of the MIC values and resistance patterns presented in this study, the need for monitoring the multidrug-resistant bacteria in aquaculture is emphasised.

Keywords: antibiotic resistance; MAR index; MIC panel; aquaculture; Paralichthys olivaceus (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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