Skip to main content
Log in

Bacterioplankton community indicators for seasonal variation in a fragmented subtropical river

  • Published:
Environmental Monitoring and Assessment Aims and scope Submit manuscript

Abstract

In this study, spatiotemporal investigations were conducted along five cascade dams in the main channel of the North River of China during 2019 to explore bacterioplankton community indicators of water environments in a fragmented, highly regulated river. Bacterioplankton communities were good bioindicators of temporal variation in river environments, especially when considering the bacterial class level. Specifically, the most dominant bacterial classes (Gammaproteobacteria, Oxyphotobacteria, and Actinobacteria) and sub-dominant bacterial classes (Bacteroidia, Betaproteobacteria, and Acidimicrobiia) exhibited obvious temporal variation. Rainfall, water temperature (WT), water transparency (SD), and pH were all highly associated with temporal variation. In contrast, bacterioplankton indicators of spatial variation were limited to individual dominant bacterial classes for individual study periods, while rainfall, total phosphorus (TP), and pH were also associated with spatial variation. Clustering of bacterioplankton community compositions revealed that temporal differences were much stronger than spatial differences, which is consistent with most environmental parameters exhibiting obvious temporal differences, but minimal spatial differences. A possible reason for these observations could be that river fragmentation caused by cascade dams weakened spatial differences in communities, with WT, rainfall, and river runoff playing key roles in these patterns. In conclusion, bacterioplankton communities were good bioindicators of water environments in the fragmented river ecosystem of this study and their temporal variation was more apparent than their spatial variation.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7

Similar content being viewed by others

Data availability statements

The datasets generated analyzed during the current study are not publicly available but are available from the corresponding author on reasonable request.

References

Download references

Acknowledgements

This work was supported by the “Guangdong Basic and Applied Basic Research Foundation” [grant numbers 2021A1515012079, 2019A1515011589]; Central Public-interest Scientific Institution Basal Research Fund, CAFS [grant number 2022SJ-TD1]; National Freshwater Genetic Resource Center (FGRC-18537). We are very grateful to all staff members of our team for their assistance during field work. We thank LetPub (www.letpub.com) for its linguistic assistance during the preparation of this manuscript.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Chao Wang.

Ethics declarations

Conflict of interest

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Zhao, B., Song, P., Yang, W. et al. Bacterioplankton community indicators for seasonal variation in a fragmented subtropical river. Environ Monit Assess 194, 458 (2022). https://doi.org/10.1007/s10661-022-10101-z

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s10661-022-10101-z

Keywords

Navigation