Comparative Metagenomic Analysis of Marine eDNA Investigating the Production Crisis of Aquacultured Saccharina japonica SCIE SCOPUS

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Title
Comparative Metagenomic Analysis of Marine eDNA Investigating the Production Crisis of Aquacultured Saccharina japonica
Author(s)
Choi Soyun; Yang Kwon Mo; Choi, Dong Mun; Choi Yang Ho; Wang Xiuliang; Wang Lingxiu; Liu Xiaoyong; Duan Delin; Park Hyun; Kim Jeong Ha
KIOST Author(s)
Choi, Dong Mun(최동문)
Alternative Author(s)
최동문
Publication Year
2024-04
Abstract
Aquaculture farms cultivating Saccharina japonica are highly active in Wando, Korea, and Rongcheng, China. However, the yield of S. japonica significantly declined in the Rongcheng region in 2022 compared to previous records, whereas that in Wando remained at a normal level, presumably due to the presence of a pathogenic microbiome. We used environmental DNA (eDNA) metagenomic analysis to compare the microbial compositions of seawater from aquaculture farms in Wando and Rongcheng. Seawater samples were collected from one Korean site in Wando (WA) and two Chinese sites in Ailian Bay (AB) and Lidao Bay (LB). Metagenomic analysis focusing on the microbial 16S rRNA identified 38 phyla and 58 families of microbiomes in all regions. Potentially pathogenic bacterial groups associated with S. japonica in AB and LB were more abundant than in WA, suggesting their potential influence on mortality and the decline in the harvest yield of S. japonica. The microbial composition of WA was distinguished from those of the other two sites, which clustered together with higher similarity. Since the S. japonica aquaculture industry is important for both countries, this comparative eDNA monitoring is a valuable initiation towards the next step of problem-solving practices in coastal management in these two aquaculture systems.
ISSN
1424-2818
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/45537
DOI
10.3390/d16040245
Bibliographic Citation
Diversity, v.16, no.4, 2024
Publisher
Multidisciplinary Digital Publishing Institute (MDPI)
Keywords
environmental DNA (eDNA); kelp; microorganism; pathogenic bacteria; metagenomic analysis
Type
Article
Language
English
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