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The research aims to characterize the bacterioplankton composition in Lake Sevan for the first time.

March 5, 2026Scientific ReportsOpen Access

The first high-throughput sequencing of bacterioplankton sheds light on bacterial and cyanobacterial diversity in high-altitude Lake Sevan, Armenia

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The research aims to characterize the bacterioplankton composition in Lake Sevan for the first time.
Collected water samples from different depths of Lake Sevan's subbasins seasonally in 2018
Analyzed bacterioplankton using high-throughput sequencing of the V3-V4 region of 16S rRNA
Assessed bacterial diversity and identified cyanobacterial blooms
Identified dominant phyla: Pseudomonadota, Actinomycetota, Bacteroidota, and Cyanobacteriota
Observed high alpha diversity, with noted summer decline during cyanobacterial bloom
Detected pathogenic bacteria, including species harmful to fish and humans

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Reveals bacterioplankton diversity in Lake Sevan, suggesting important ecological insights for high-altitude lakes.

Gevorgyan et al. (2026) studied this question.

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