First report of skin ulceration caused by Photobacterium damselae subsp. damselae in net-cage cultured black rockfish (Sebastes schlegeli)

文献类型： 外文期刊

第一作者： Zhang, Zheng

作者： Zhang, Zheng;Yu, Yong-xiang;Wang, Kai;Wang, Yin-geng;Liao, Mei-jie;Rong, Xiao-jun;Zhang, Zheng;Wang, Yin-geng;Liao, Mei-jie;Rong, Xiao-jun;Jiang, Yong

作者机构：

关键词： Sebastes schlegeli; Skin ulcer; Photobacterium damselae; Mariculture; Net-cage farming

期刊名称：AQUACULTURE （ 影响因子：4.242； 五年影响因子：4.723 ）

ISSN： 0044-8486

年卷期： 2019 年 503 卷

页码：

收录情况： SCI

摘要： In July 2016 and August 2017, there were two severe outbreaks of serious skin ulcers in rockfish (Sebastes schlegeli), which were cultured in offshore net-cages around Daqing Island, China. One pathogenic bacterium was isolated from the skin lesions of diseased fish. Such isolate was identified as Photobacterium damselae subsp. damselae through morphological observation, physiological and biochemical tests as well as gyrB gene sequencing. Artificial challenge test confirmed that this strain had strong pathogenicity to black rockfish and could cause serious skin ulcers. The symptoms were consistent with those of naturally infected fish. Its 14-day LD50 in for black rockfish was 8.78 x 10(2) cfu/g body weight.

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