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Acute damage from the degradation of Ulva prolifera on the environmental microbiota, intestinal microbiota and transcriptome of Japanese flounder Paralichthys olivaceus

文献类型： 外文期刊

作者： Fan, Qingxin 1 ; Shi, Kunpeng 1 ; Zhan, Min 1 ; Xu, Qian 1 ; Liu, Xinbao 1 ; Li, Zhujun 1 ; Liu, Hongning 1 ; Xia, Yanting 1 ; Chen, Yadong 2 ; Shi, Xiaoyong 4 ; Sha, Zhenxia 1 ;

作者机构： 1.Qingdao Univ, Coll Life Sci, Inst Biomed Engn, Qingdao 266071, Peoples R China

2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Fisheries Sci & Food Prod Processes, Qingdao 266237, Peoples R China

3.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Minist Agr, Key Lab Sustainable Dev Marine Fisheries, Qingdao 266071, Peoples R China

4.Natl Marine Hazard Mitigat Serv, Minist Nat Resources, Beijing 100194, Peoples R China

关键词： Ulva prolifera; Japanese flounder; Environmental microbiota; Intestinal microbiota; Intestinal transcriptome

期刊名称：ENVIRONMENTAL POLLUTION （ 影响因子：9.988； 五年影响因子：10.366 ）

ISSN： 0269-7491

年卷期： 2022 年 302 卷

页码：

收录情况： SCI

摘要： Green tide outbreaks caused by overgrowth of Ulva prolifera in the Yellow Sea of China can cause serious ecological stress with concomitant economic hardships, especially to marine fisheries. In this study, short-term effects (14 days) were evaluated using fresh algae U. prolifera (FU), and a 7-day assessment of the effects of decomposing U. prolifera (DU) algal effluent was conducted to determine the effects on the environmental and intestinal microbiota, intestinal transcriptome and mortality of the commercial marine benthic fish, Japanese flounder (Paralichthys olivaceus). The results revealed that algal degradation altered the microbial community structure of fish farm water and fish intestines and increased the relative abundance of the pathogens Flavobacteriaceae in water and Vibrio in fish intestines. Fish intestinal tissue structure appeared to be damaged, as indicated in pathological sections, and transcriptome analysis showed intestinal inflammation after exposure, which may have caused an increase in fish mortality. The degradation of U. prolifera led to a bloom of potential pathogenic bacteria and the inflammation of fish intestines, which resulted in disease in the flounder population that reduced fish harvests and might pose a potential health threat.

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