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- Title
Microbiome pattern and diversity of an anadromous fish, hilsa shad (Tenualosa ilisha).
- Authors
Biswas, Sabuj; Foysal, Md Javed; Mannan, Adnan; Sharifuzzaman, SM; Tanzina, Afsana Yeasmin; Tanni, Afroza Akter; Sharmen, Farjana; Hossain, Md. Mobarok; Chowdhury, M. Shah Nawaz; Tay, Alfred Chin-Yen; Islam, S. M. Rafiqul
- Abstract
Background: The host-microbe interactions are complex, dynamic and context-dependent. In this regard, migratory fish species like hilsa shad (Tenualosa ilisha), which migrates from seawater to freshwater for spawning, provides a unique system for investigating the microbiome under an additional change in fish's habitat. This work was undertaken to detect taxonomic variation of microbiome and their function in the migration of hilsa. Methods and results: The study employed 16S rRNA amplicon-based metagenomic analysis to scrutinize bacterial diversity in hilsa gut, skin mucus and water. Thus, a total of 284 operational taxonomic units (OTUs), 9 phyla, 35 orders and 121 genera were identified in all samples. More than 60% of the identified bacteria were Proteobacteria with modest abundance (> 5%) of Firmicutes, Bacteroidetes and Actinobacteria. Leucobacter in gut and Serratia in skin mucus were the core bacterial genera, while Acinetobacter, Pseudomonas and Psychrobacter exhibited differential compositions in gut, skin mucus and water. Conclusions: Representative fresh-, brackish- and seawater samples of hilsa habitats were primarily composed of Vibrio, Serratia and Psychrobacter, and their diversity in seawater was significantly higher (P < 0.05) than freshwater. Overall, salinity and water microbiota had an influence on the microbial composition of hilsa shad, contributing to host metabolism and adaptation processes. This pioneer exploration of hilsa gut and skin mucus bacteria across habitats will advance our insights into microbiome assembly in migratory fish populations.
- Subjects
ANADROMOUS fishes; FISH diversity; BACTERIAL diversity; BIOMES; MIGRATORY fishes; FISH populations; MIGRATORY animals; MALASSEZIA
- Publication
Molecular Biology Reports, 2023, Vol 51, Issue 1, p1
- ISSN
0301-4851
- Publication type
Article
- DOI
10.1007/s11033-023-08965-6