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- Nakayasu, Chihaya, et al. Show all 10 Authors
- Aquaculture 2019
- Pinctada fucata; Spirochaeta; animal diseases; bacteria; epidemiological studies; genes; heart; hemocytes; mortality; muscles; oysters; pathogens; quantitative polymerase chain reaction; rearing; seasonal variation; tissues; water temperature; Japan
- ... Since the 1990s, Akoya oyster disease (AOD) associated with reddish browning of the soft tissues and mortality of cultured pearl oyster, Pinctada fucata (Gould), has been occurring in the western part of Japan. Although transmission experiments suggested that the disease is infectious, the causative agent has not been identified. Previous studies suggested that a member of the Spirochaeta cause AO ...
- Nakayasu, Chihaya, et al. Show all 5 Authors
- Aquaculture 2009 v.286 no.3-4 pp. 254-258
- Paralichthys olivaceus; flounder; marine fish; mortality; water temperature; fish diseases; viral diseases of animals and humans; Viral hemorrhagic septicemia virus; disease control; heat treatment; fish culture; mariculture; Japan
- ... Viral hemorrhagic septicemia virus (VHSV) infection has been one of the major obstacles for Japanese flounder Paralichthys olivaceus culture both in inland tank systems and open sea net-pens in Japan. The mortality due to the disease in cultured Japanese flounder occurs in the cold-water season at temperatures mostly below 15 °C. We examined the effect on the disease by shifting the rearing-water ...