Internal phosphorus loading from sediments causes seasonal nitrogen limitation for harmful algal blooms

The Science of The Total Environment, Journal Year: 2018, Volume and Issue: 625, P. 872 - 884

Published: Jan. 4, 2018

Language: Английский

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Ecophysiological Examination of the Lake Erie Microcystis Bloom in 2014: Linkages between Biology and the Water Supply Shutdown of Toledo, OH

Environmental Science & Technology, Journal Year: 2017, Volume and Issue: 51(12), P. 6745 - 6755

Published: May 23, 2017

Annual cyanobacterial blooms dominated by Microcystis have occurred in western Lake Erie (U.S./Canada) during summer months since 1995. The production of toxins bloom-forming cyanobacteria can lead to drinking water crises, such as the one experienced city Toledo August 2014, when was rendered without for >2 days. It is important understand conditions and environmental cues that were driving this specific bloom provide a scientific framework management future events. To end, samples collected metatranscriptomes generated coincident with collection metrics eight sites located basin Erie, including station proximal intake Toledo. These data used generate basin-wide ecophysiological fingerprint populations 2014 comparison previous communities. Our observations analyses indicate that, at time sample collection, under dual nitrogen (N) phosphorus (P) stress, genes involved scavenging these nutrients being actively transcribed. Targeted analysis urea transport hydrolysis suggests potentially role exogenous source event. Finally, simulation suggest wind event caused microcystin-rich from Maumee Bay be transported east along southern shoreline past intake. Coupled significant cyanophage infection, results reveal combination biological factors led disruption supply. This scenario not atypical reoccurring thus may reoccur future.

Language: Английский

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The impact of flooding on aquatic ecosystem services

Biogeochemistry, Journal Year: 2018, Volume and Issue: 141(3), P. 439 - 461

Published: May 11, 2018

Flooding is a major disturbance that impacts aquatic ecosystems and the ecosystem services they provide. Predicted increases in global flood risk due to land use change water cycle intensification will likely only increase frequency severity of these impacts. Extreme flooding events can cause loss life significant destruction property infrastructure, effects are easily recognized frequently reported media. However, also has many other on people through freshwater services, which often go unrecognized because less evident be difficult evaluate. Here, we identify small magnitude occurring floods (< 10-year recurrence interval) extreme (> 100-year have ten systematic literature review. We focused considered by Millennium Ecosystem Assessment including: (1) supporting (primary production, soil formation), (2) regulating (water regulation, quality, disease climate regulation), (3) provisioning (drinking water, food supply), (4) cultural (aesthetic value, recreation tourism). The search resulted 117 studies each was represented an average 12 ± 4 studies. losses almost every service this study. had neutral or positive half considered. For example, led primary tourism. Decision-making preserves while reducing provision minimize losses.

Language: Английский

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A review on lake eutrophication dynamics and recent developments in lake modeling

Ecohydrology & Hydrobiology, Journal Year: 2018, Volume and Issue: 19(1), P. 155 - 166

Published: March 18, 2018

Language: Английский

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Water quality prospective in Twenty First Century: Status of water quality in major river basins, contemporary strategies and impediments: A review

Environmental Pollution, Journal Year: 2020, Volume and Issue: 271, P. 116332 - 116332

Published: Dec. 17, 2020

Language: Английский

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Sediment internal nutrient loading in the most polluted area of a shallow eutrophic lake (Lake Chaohu, China) and its contribution to lake eutrophication

Environmental Pollution, Journal Year: 2020, Volume and Issue: 262, P. 114292 - 114292

Published: Feb. 29, 2020

Language: Английский

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The magnitude and drivers of harmful algal blooms in China’s lakes and reservoirs: A national-scale characterization

Water Research, Journal Year: 2020, Volume and Issue: 181, P. 115902 - 115902

Published: May 14, 2020

Language: Английский

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Deciphering the effects of nitrogen, phosphorus, and temperature on cyanobacterial bloom intensification, diversity, and toxicity in western Lake Erie

Limnology and Oceanography, Journal Year: 2019, Volume and Issue: 64(3), P. 1347 - 1370

Published: Feb. 5, 2019

Abstract Although cyanobacterial harmful algal blooms (CHABs) are promoted by nutrient loading and elevated temperatures, the effects of these processes on bloom diversity unclear. This study used traditional next‐generation sequencing approaches to assess shifts in phytoplankton, (16S rRNA), microcystin‐producing ( mcy E) communities during CHABs western Lake Erie (Maumee Sandusky Bays) response natural experimental gradients nitrogen (N), phosphorus (P), temperature. were most intense near Maumee Rivers dominated Microcystis Planktothrix , respectively. Sequencing 16S amplicons revealed cryptic (47 genera) including high abundances two distinct clades Synechococcus both bays significant differences community structure between nutrient‐rich nearshore sites less eutrophic offshore sites. mcyE genes low taxonomic n = 3) but genetic 807), with toxigenic strains being more abundant than closely paralleling microcystin concentrations. Cyanobacterial abundance significantly increased N, greatest increases combined P, temperature treatments that concurrently suppressed green brown algae. N concentrations relative nondiazotrophic genera such as Planktothrix, while diazotrophic Dolichospermum Aphanizomenon were, some cases, enhanced P While nutrients temperatures promote CHABs, differing combinations selectively individual strains, indicating management will be required control all cyanobacteria Erie, particularly lake rise.

Language: Английский

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Anthropogenic eutrophication of shallow lakes: Is it occasional?

Water Research, Journal Year: 2022, Volume and Issue: 221, P. 118728 - 118728

Published: June 9, 2022

Language: Английский

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Paradigm shifts and current challenges in wastewater management

Journal of Hazardous Materials, Journal Year: 2020, Volume and Issue: 390, P. 122139 - 122139

Published: Jan. 20, 2020

Language: Английский

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