국내 참전복(Haliotis discus hannai) 및 오분자기(Haliotis diversicolor aquatilis)에 대한 병원체 모니터링(2023-2024)
Monitoring of pathogens in Halitios discus hannai and Haliotis diversicolor aquatilis in Korea (2023-2024)
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This study monitored the presence of Abalone herpesvirus (AbHV), Xenohaliotis californiensis, and Vibrio fluvialis II in a total of 17,400 abalone (Haliotis discus hannai and H. diversicolor aquatilis) collected from South Korea during 2023 (145 farms and 5 wild sites) and 2024 (135 farms and 5 wild sites). Sampling was conducted in May, August and September-Noverber. Water temperature ranged from 14 to 25℃ in 2023 and from 18.3 to 26.8℃ in 2024 conditions suitable for pathogen－monitoring. PCR analysis for AbHV and X. californiensis was performed following the guidelines of the National Fishery Products Quality Management Service (NFQS), while detection of V. fluvialis II followed the protocol established by Japan’s Ministry of Agriculture, Forestry and Fisheries (MAFF). No AbHV or V. fluvialis II were detected throughout monitoring period. Although X. californiensis- specific genes were detected in six pooled samples (2.5%) in 2024, subsequent sequencing confirmed all cases as negative. These results suggest that South Korean abalone farms and wild populations remain free from AbHV, X. californiensis, and V. fluvialis II, supporting South Korea’s current dis- ease-free status and contributing baseline data for international trade quarantine and biosecurity management.
Abstract
This study monitored the presence of Abalone herpesvirus (AbHV), Xenohaliotis californiensis, and Vibrio fluvialis II in a total of 17,400 abalone (Haliotis discus hannai and H. diversicolor aquatilis) collected from South Korea during 2023 (145 farms and 5 wild sites) and 2024 (135 farms and 5 wild sites). Sampling was conducted in May, August and September-Noverber. Water temperature ranged from 14 to 25℃ in 2023 and from 18.3 to 26.8℃ in 2024 conditions suitable for pathogen－monitoring. PCR analysis for AbHV and X. californiensis was performed following the guidelines of the National Fishery Products Quality Management Service (NFQS), while detection of V. fluvialis II followed the protocol established by Japan’s Ministry of Agriculture, Forestry and Fisheries (MAFF). No AbHV or V. fluvialis II were detected throughout monitoring period. Although X. californiensis- specific genes were detected in six pooled samples (2.5%) in 2024, subsequent sequencing confirmed all cases as negative. These results suggest that South Korean abalone farms and wild populations remain free from AbHV, X. californiensis, and V. fluvialis II, supporting South Korea’s current dis- ease-free status and contributing baseline data for international trade quarantine and biosecurity management.