Bacterial and microeukaryotic assemblage transitions during a harmful algal bloom in the Nakdong River
Clicks: 1
ID: 315522
2026
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This
article has not been analysed, so there is no overall score —
reader engagement is measured and shown alongside.
Reader Engagement
0.0
/100
1 views
0 readers
AI Quality Assessment
Not analyzed
Readership in this journal
Ranked #44 of 78 articles by views in fems microbiology ecology
Most read
Least read
Bar heights use a square-root scale.
Mint this article as an NFT
Not yet mintedCreate a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.
5
SUSD
one-off · no wallet required
Abstract
Harmful algal blooms (HABs) represent major ecological disturbances that can alter microbial community composition and reduce ecosystem resilience. Here, we investigated bacterial and microeukaryotic assemblage transitions during a bloom-affected period in the Nakdong River, a regulated river system in South Korea. By integrating microcystin (MC) measurements, cyanobacterial dominance, water-quality parameters, and amplicon-based community profiling (16S rRNA gene and ITS2), we characterized how microbial communities reorganized along gradients of bloom intensity. MC concentrations increased markedly across the sampling period, and early-phase qPCR data showed concurrent increases in mcyE gene abundance through 6 August 2021. Bacterial communities shifted from Actinobacteriota- and Proteobacteria-dominated assemblages toward Microcystaceae-enriched communities. Microeukaryotic communities similarly transitioned from diverse Chlorophyta, fungi, and ciliates to Chlamydomonadaceae- and ciliate-dominated assemblages under high-MC conditions. Both domains exhibited significant reductions in alpha diversity with increasing bloom intensity, although microeukaryotic responses were comparatively moderate. Correlation analyses revealed strong associations of MC concentration and Microcystis abundance with declining pH, elevated BOD, and the enrichment of bloom-associated taxa. These results indicate that bloom-associated conditions in this regulated river system were accompanied by parallel restructuring of bacterial and microeukaryotic assemblages. The integration of environmental and microbial indicators presented here provides a framework for understanding HAB-associated microbial reorganization and for informing monitoring strategies in hydrologically altered freshwater ecosystems.
| Reference Key |
openalex_W7163128172
Use this key to autocite in the manuscript while using
SciMatic Manuscript Manager or Thesis Manager
|
|---|---|
| Authors | Dayun Kang, Min-Ji Kim, Seungjun Lee |
| Journal | fems microbiology ecology |
| Year | 2026 |
| DOI |
10.1093/femsec/fiag057
|
| URL | |
| Keywords | Keywords not found |
Citations
No citations found. To add a citation, contact the admin at info@scimatic.org
Comments
No comments yet. Be the first to comment on this article.