Korean Medicine Data Division, Korea Institute of Oriental Medicine, Daejeon, Republic of Korea.
Department of Systems Biotechnology, Chung-Ang University, Anseong, Republic of Korea.
Sci Data. 2024 Aug 20;11(1):902. doi: 10.1038/s41597-024-03769-0.
The mariculture industry has seen a rapid expansion in recent years due to the increasing global demand for seafood. However, the industry faces challenges from climate change and increased pathogen pressure. Additionally, the chemicals used to enhance mariculture productivity are changing ocean ecosystems. This study analyzed 36 surface-water metagenomes from South Korean mussel, oyster, scallop, and shrimp farms to expand our understanding of aquaculture microbial genetic resources and the potential impacts of these anthropogenic inputs. We recovered 240 non-redundant species-level metagenome-assembled genomes (MAGs), comprising 224 bacteria, 13 archaea, and three eukaryotes. Most MAGs were assigned to Proteobacteria, Bacteroidota, and Actinobacteriota, with 40.7% remaining unclassified at the species level. Among the three eukaryotic MAGs, one was identified as a novel lineage of green algae, highlighting the uncharacterized genetic diversity in mariculture environments. Additionally, 22 prokaryotic MAGs harbored 26 antibiotic and metal resistance genes, with MAGs carrying beta-lactamases being particularly prevalent in most farms. The obtained microbiome data from mariculture environments can be utilized in future studies to foster healthy, sustainable mariculture practices.
近年来，由于全球对海鲜的需求不断增加，海水养殖业迅速扩张。然而，该行业面临着气候变化和病原体压力增加的挑战。此外，用于提高海水养殖生产力的化学物质正在改变海洋生态系统。本研究分析了来自韩国贻贝、牡蛎、扇贝和对虾养殖场的 36 个地表水宏基因组，以扩展我们对水产养殖微生物遗传资源的理解以及这些人为投入的潜在影响。我们回收了 240 个非冗余种水平宏基因组组装基因组（MAGs），包括 224 种细菌、13 种古菌和 3 种真核生物。大多数 MAGs 被分配到变形菌门、拟杆菌门和放线菌门，其中 40.7%在种水平上仍未分类。在这三个真核 MAGs 中，有一个被鉴定为绿藻的新谱系，突出了海水养殖环境中未被描述的遗传多样性。此外，22 个原核 MAGs 携带 26 个抗生素和金属抗性基因，其中携带β-内酰胺酶的 MAGs在大多数养殖场中尤为普遍。从海水养殖环境中获得的微生物组数据可用于未来的研究，以促进健康、可持续的海水养殖实践。
