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Studies on Bacterial Diversity and Vibrio harveyi Distribution Associated with Diseased fugu (Takifugu rubripes) in Northeastern China

Studies on Bacterial Diversity and Vibrio harveyi Distribution Associated with Diseased fugu (Takifugu rubripes) in Northeastern China

Qiang Li1,2, Guo Qiao2, Li Wang1, Jipeng Zhang1, Ruijun Li1, Ping Ni1, Yi Guo1 and Shigen Ye1,*

1Dalian Key Laboratory of Marine Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China
2Department of Ocean Technology, College of Marine and Biology Engineering, Yancheng Institute of Technology, Yancheng, 224051, China

*      Corresponding author: shgye@dlou.edu.cn

 

Fig. 1.

Diseased Takifugu rubripes sampling farms located in Liaoning Province. A, Daheishi farm; B, Zhuanghe farm.

Fig. 2.

Main clinical symptoms of naturally and artificially diseased Takifugu rubripes. A, black skin ; B, fin ulceration; C, fin bleed; D, hepatohemia; E, spleenomegaly; F, intestinal hydrops.

Fig. 3.

Bacterial diversity of all the 70 isolates. A, proportion of strains in all the isolates at species level; B, percentage of Vibrio harveyi in Vibrio genera.

Fig. 4.

Phylogenetic trees of the four representative isolates constructed using Neighbor-Joining method in Mega 5.05.

Fig. 5.

Bacterial diversity of 45 isolates obtained from farm A. A, proportion of strains in all the isolates obtained from farm A at species level; B, percentage of Vibrio harveyi in Vibrio genera in farm A.

Fig. 6.

Bacterial diversity of 25 isolates obtained from farm B. A, proportion of strains in all the isolates obtained from farm B at species level; B, percentage of Vibrio harveyi in Vibrio genera in farm A.

Fig. 7.

Time-course bacterial diversity in both farm A and farm B. A, total bacterial diversity at different sampling month; B, bacterial diversity at different sampling month in farm A; C, bacterial diversity at different sampling month in farm B.

Pakistan Journal of Zoology

December

Vol. 50, Iss. 6, Pages 1999-2398

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