Spatio-Temporal Dynamics in Physico-Chemical Properties, Phytoplankton and Bacterial Diversity as an Indication of the Bovan Reservoir Water Quality

Abstract

The study aimed to investigate the physico-chemical properties as well as phytoplankton and bacterial community diversity of Bovan Lake reservoir in Serbia to gain insight into the seasonal dynamic of water quality. All analyses were performed at three localities and water depths in spring, summer, autumn, and winter 2019. Seven phytoplankton phyla comprising 139 taxa were detected at all three localities (Chlorophyta 58%, Bacillariophyta 14%, Cyanobacteria 9%, Chrysophyta 5%, Dinophyta 5%, Euglenophyta 5%, and Cryptophyta 4%). Winter 2019 was characterized by the presence of 36 unique species in all phyla except Euglenophyta. Bacterial diversity analyses showed that Proteobacteria, Actinobacteria, Bacteroidetes, Cyanobacteria, and Verrucomicrobia dominated the water intake locality at all three water depths (0.5, 10, and 20 m below the surface). In general, the physico-chemical parameters, phytoplankton, and bacterial community composition depended on the season and the water depth and showed that Bovan Lake was of satisfactory ecological status and water quality at all localities, and meets the needs for all intended purposes.

Spatiotemporal assembly and functional composition of planktonic microeukaryotic communities along productivity gradients in a subtropical lake

“…Limited variability was noted in planktonic microeukaryotic communities across water column depths ( Figure 3A ; Table 1 ), despite there being significant differences in certain environmental variables (e.g., DO and temperature; Supplementary Table S2 ). This observation aligns with a previous study on bacterioplankton communities in a reservoir with a depth range of 0.5–20 m ( Zlatković et al, 2022 ) but contrasts with research covering a much wider depth range. For example, Gong et al (2015) documented that structure of microeukaryotic community was significantly shaped by depth in sediments of coastal shallow water (15–75 m).…”

Bacterial Diversity in Al-Asfar Lake, Al Ahsa Oasis, Saudi Arabia

“…Our findings were consistent with prior research, although our study showed a higher CFU count. 23 Slight variations in CFU counts were observed across the three locations, which can be attributed to a combination of factors. In the drainage area of the lake (WAT 1), CFU counts were lower, possibly due to reduced nutrient availability compared to the lake basin.…”

Analysis of diversity and antibiotic susceptibility profile of bacterial strains isolated from freshwater canal of Lahore, Pakistan

“…Oligotrophic surface waters are rich in non-spore forming rods, gram negative bacteria like Flavorbacterium. But with increase in eutrophication, other microorganisms become more important like Pseudomonas, Proteus, Bacillus, Enterobacter and Actinobacter (Zlatković et al, 2022). There are many sources of water pollution like runoff water surrounding water bodies is an important source of microorganisms.…”