PRELIMINARY ANALYSIS OF THE SKIN MICROBIOTA COMPOSITION OF GIANT MOTTLED EEL (ANGUILLA MAMORATA QUOY AND GAIMARD, 1824) CULTURED IN HO CHI MINH USING METAGENOMIC SEQUENCING | Thống | TNU Journal of Science and Technology

PRELIMINARY ANALYSIS OF THE SKIN MICROBIOTA COMPOSITION OF GIANT MOTTLED EEL (ANGUILLA MAMORATA QUOY AND GAIMARD, 1824) CULTURED IN HO CHI MINH USING METAGENOMIC SEQUENCING

About this article

Received: 14/05/25                Revised: 13/08/25                Published: 13/08/25

Authors

1. Nguyen Van Thong, 1) Nong Lam University of Ho Chi Minh city, 2) Hung Vuong University of Ho Chi Minh city
2. Nguyen Phu Hoa, Nong Lam University of Ho Chi Minh city
3. Nguyen Bao Quoc Email to author, Nong Lam University of Ho Chi Minh city
4. Nguyen Thi My Dung, Hung Vuong University of Ho Chi Minh city
5. Nguyen Ngoc Tai, Hung Vuong University of Ho Chi Minh city

Abstract


This study investigates the bacterial community structure present on the skin of Giant mottled eels (Anguilla marmorata) cultured in Ho Chi Minh City, Vietnam. Samples were collected from individuals exhibiting abnormal swimming behavior and signs of illness, including pale patches and mild hemorrhaging on the skin, from an indoor aquaculture facility located in Ho Chi Minh City. Metagenomic DNA was extracted and analyzed using Illumina paired-end sequencing technology. The phyla Bacteroidetes (9.92%), Firmicutes (23.89%), Proteobacteria (63.5%), Cyanobacteria (0.33%), unclassified (0.15%) and other phyta groups (0.20%) were found. The predominating class in samples were Gammaproteobacteria (61.71%), Bacilli (13.35%), Clostridia (12.55%), Bacteroidia (9.92%). The predominating families were Aeromonadaceae (43.10%), Enterobacteriaceae (12.06%), Streptococcaceae (11.24%), Clostridiaceae (10.36%), Weeksellaceae (3.33%). The predominating genus in sampes were Aeromonas (43.08%), Lactococcoccus (11.24%), Enterobacter (5.03%), Macellibacteroides (4.46%), Plesiomonas (4.01%), Acidovorax (1.33%), and Edwardsiella (0.79%). The identified species included Aeromonas caviae (29.72%), Lactococcus lactis (11.23%), Plesiomonas shigelloides (3.91%), Aeromonas encheleia (2.58%), Enterobacter roggenkampii (1.72%), Acidovorax delafieldii (1.25%), Edwardsiella hoshinae (0.79%), and Acinetobacter junii (0.06%). 


Keywords


The giant mottled eel; Metagenomic; Microbial community in skin of eels; Fish pathogenic bacteria; Skin diseases in eels

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DOI: https://doi.org/10.34238/tnu-jst.12804

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