Mass mortality in Korean bay scallop (Argopecten irradians) associated with Ostreid Herpesvirus-1 μVar

Since November 2017, mass mortalities of larvae of bay scallop (Argopecten irradians) were reported in hatcheries located at the southern area of Republic of Korea. Over 90% of larvae aged 5-10 days sank to the bottom of the tank and died. The hatcheries could not produce spat, and thus artificial s...

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Bibliographic Details
Published in:Transboundary and Emerging Diseases
Main Authors: Kim, Hyoun Joong, Jun, Jin Woo, Giri, Sib Sankar, Yun, Saekil, Kim, Sang Guen, Kim, Sang Wha, Kang, Jeong Woo, Han, Se Jin, Kwon, Jun, Oh, Woo Taek, Jeon, Hyung Bae, Chi, Cheng, Jeong, Dalsang, Park, Se Chang
Format: Article in Journal/Newspaper
Language:unknown
Published: Blackwell-Wiss.-Verl 2019
Subjects:
CRASSOSTREA-GIGAS THUNBERG
PACIFIC OYSTERS
BACILLARY NECROSIS
JAPANESE OYSTER
DISEASE
LARVAL
DNA
INFECTIONS
Ostreid Herpesvirus-1 mu Var
mass mortality
bay scallop (Argopecten irradians) larvae
Pacific
Crassostrea gigas
Online Access:https://hdl.handle.net/10371/192514
https://doi.org/10.1111/tbed.13200
Description
Summary:Since November 2017, mass mortalities of larvae of bay scallop (Argopecten irradians) were reported in hatcheries located at the southern area of Republic of Korea. Over 90% of larvae aged 5-10 days sank to the bottom of the tank and died. The hatcheries could not produce spat, and thus artificial seed production industry incurred huge losses. We identified Ostreid Herpesvirus-1 mu Var (OsHV-1 mu Var) associated with mass mortality by PCR, sequencing and transmission electron microscopy (TEM). All the samples were positive for OsHV-1 mu Var with 99% sequence identity to previously reported OsHV-1 mu Var sequences. Partial sequence of ORF-4 of OsHV-1 detected in this study was more closely related to sequences isolated from Europe. This is the first report to confirm the mortality caused by an OsHV-1 infection in the bay scallop. N 1

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