Seasonal Dynamics in Dissolved Organic Matter, Hydrogen Peroxide, and Cyanobacterial Blooms in Lake Erie

Cory, Rose M.; Davis, Timothy W.; Dick, Gregory J.; Johengen, Thomas H.; Denef, Vincent J.; Berry, Michelle A.; Page, Sarah E.; Watson, Susan B.; Yuhas, Kate; Kling, George W.

doi:10.3389/fmars.2016.00054

Cited by 55 publications

(83 citation statements)

References 81 publications

(173 reference statements)

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“…There are multiple mechanisms by which an algal bloom can affect bacterial community composition. A shift from allochthonous to autochthonous dissolved organic carbon was observed during this CHAB (Cory et al ., ), which may have influenced the relative abundance of different taxa. Several other studies have documented that bacterial communities respond to shifts in substrates available within the dissolved organic carbon pool during both freshwater and marine blooms (Lau et al ., ; Teeling et al ., ; Yang et al ., ).…”

Section: Resultsmentioning

confidence: 99%

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Cyanobacterial harmful algal blooms are a biological disturbance to Western Lake Erie bacterial communities

Berry

Davis

Cory

et al. 2017

Environmental Microbiology

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165

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Human activities are causing a global proliferation of cyanobacterial harmful algal blooms (CHABs), yet we have limited understanding of how these events affect freshwater bacterial communities. Using weekly data from western Lake Erie in 2014, we investigated how the cyanobacterial community varied over space and time, and whether the bloom affected non-cyanobacterial (nc-bacterial) diversity and composition. Cyanobacterial community composition fluctuated dynamically during the bloom, but was dominated by Microcystis and Synechococcus OTUs. The bloom's progression revealed potential impacts to nc-bacterial diversity. Nc-bacterial evenness displayed linear, unimodal, or no response to algal pigment levels, depending on the taxonomic group. In addition, the bloom coincided with a large shift in nc-bacterial community composition. These shifts could be partitioned into components predicted by pH, chlorophyll a, temperature, and water mass movements. Actinobacteria OTUs showed particularly strong correlations to bloom dynamics. AcI-C OTUs became more abundant, while acI-A and acI-B OTUs declined during the bloom, providing evidence of niche partitioning at the sub-clade level. Thus, our observations in western Lake Erie support a link between CHABs and disturbances to bacterial community diversity and composition. Additionally, the short recovery of many taxa after the bloom indicates that bacterial communities may exhibit resilience to CHABs.

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Section: Resultsmentioning

confidence: 99%

“…H 2 O 2 measurements were analyzed according to Cory et al . (). For microbial samples, a 2 L subsample was taken from the 20 L sample and rehomogenized.…”

Section: Methodsmentioning

confidence: 97%

Cyanobacterial harmful algal blooms are a biological disturbance to Western Lake Erie bacterial communities

Berry

Davis

Cory

et al. 2017

Environmental Microbiology

Self Cite

165

123

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“…Some potential exceptions where ROS may be more important are in very shallow systems, in surface waters during periods of no wind, or via biological production during intense phytoplankton blooms. 46,215,247…”

Section: Reactive Oxygen Species Produced By Uv-dom Interactions Havementioning

confidence: 99%

The interactive effects of stratospheric ozone depletion, UV radiation, and climate change on aquatic ecosystems

Williamson

Neale

Hylander

et al. 2019

Photochem Photobiol Sci

116

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“…The formation of H 2 O 2 and reactive oxygen species (ROS) in surface waters is induced by UV irradiation and the presence of natural photosensitizers such as dissolved organic carbon and especially humic acid substances. The biological production of H 2 O 2 by bacteria and algae may however dominate over photochemical production especially in particle-rich eutrophic waters (Cory et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Elimination of cyanobacteria and microcystins in irrigation water—effects of hydrogen peroxide treatment

Spoof

Jaakkola

Važić

et al. 2020

Environ Sci Pollut Res

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Cyanobacterial blooms pose a risk to wild and domestic animals as well as humans due to the toxins they may produce. Humans may be subjected to cyanobacterial toxins through many routes, e.g., by consuming contaminated drinking water, fish, and crop plants or through recreational activities. In earlier studies, cyanobacterial cells have been shown to accumulate on leafy plants after spray irrigation with cyanobacteria-containing water, and microcystin (MC) has been detected in the plant root system after irrigation with MC-containing water. This paper reports a series of experiments where lysis of cyanobacteria in abstracted lake water was induced by the use of hydrogen peroxide and the fate of released MCs was followed. The hydrogen peroxide-treated water was then used for spray irrigation of cultivated spinach and possible toxin accumulation in the plants was monitored. The water abstracted from Lake Köyliönjärvi, SW Finland, contained fairly low concentrations of intracellular MC prior to the hydrogen peroxide treatment (0.04 μg L −1 in July to 2.4 μg L −1 in September 2014). Hydrogen peroxide at sufficient doses was able to lyse cyanobacteria efficiently but released MCs were still present even after the application of the highest hydrogen peroxide dose of 20 mg L −1. No traces of MC were detected in the spinach leaves. The viability of moving phytoplankton and zooplankton was also monitored after the application of hydrogen peroxide. Hydrogen peroxide at 10 mg L −1 or higher had a detrimental effect on the moving phytoplankton and zooplankton.

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Seasonal Dynamics in Dissolved Organic Matter, Hydrogen Peroxide, and Cyanobacterial Blooms in Lake Erie

Cited by 55 publications

References 81 publications

Cyanobacterial harmful algal blooms are a biological disturbance to Western Lake Erie bacterial communities

Cyanobacterial harmful algal blooms are a biological disturbance to Western Lake Erie bacterial communities

The interactive effects of stratospheric ozone depletion, UV radiation, and climate change on aquatic ecosystems

Elimination of cyanobacteria and microcystins in irrigation water—effects of hydrogen peroxide treatment

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