Marrs, RH 
ORCID: 0000-0002-0664-9420
(2019)
Effect of River Ecological Restoration on Biofilm Microbial Community Composition.
Water, 11 (6).
p. 1244.
|
Text
Paper_364.accepted draft.pdf - Author Accepted Manuscript Download (1MB) | Preview |
Abstract
Abstract: Across the world, there are increasing attempts to restore good ecological condition to 16 degraded rivers through habitat restoration. Microbial communities developing as biofilms play an 17 important role in river ecosystem functioning by driving organic matter decomposition and 18 ecosystem respiration. However, little is known about the structure and function of microbial 19 communities in riverine systems, and how these change when habitat restoration is implemented. 20 Here, we compared the biofilm bacterial community composition using 16S rRNA genes targeted 21 high-throughput Illumina Miseq sequencing in three river types, degraded urban rivers, urban 22 rivers undergoing habitat restoration and forested rivers (our reference conditions). We aimed to 23 determine: (i) the biofilm bacterial community composition affected by habitat restoration (ii) the 24 difference in bacterial diversity in restored rivers, and (iii) correlations between environmental 25 variables and bacterial community composition. The results showed that both water quality and 26 biofilm bacterial community structure were changed by habitat restoration. In rivers where habitat 27 has been restored, there has been an increase in dissolved oxygen, a reduction in organic pollutants, 28 a reduction in bacterial diversity and a related developing pattern of microbial communities, which 29 is moving towards that of the reference conditions (forested rivers). River habitat management 30 stimulated the processing of organic pollutants through the variation in microbial community 31 composition, however, a big difference in bacterial structure still existed between the restored rivers 32 and the reference forest rivers. Thus, habitat restoration is an efficient way of modifying the biofilm 33 microbial community composition for sustainable freshwater management. It will, however, take a 34 much longer time for degraded rivers to attain the similar ecosystem quality as the “pristine” forest 35 sites than the seven years of restoration studied here.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | bacterial community, biofilm, Illumina Miseq sequencing, habitat restoration, river ecosystem |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 24 May 2019 11:37 |
| Last Modified: | 02 Apr 2023 11:34 |
| DOI: | 10.3390/w11061244 |
| Open Access URL: | https://doi.org/10.3390/w11061244 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3042498 |
Dimensions
Dimensions
