Retrieval of Chla Concentrations in Lake Xingkai Using OLCI Images DOI Creative Commons
Li Fu,

Yaming Zhou,

Ge Liu

et al.

Remote Sensing, Journal Year: 2023, Volume and Issue: 15(15), P. 3809 - 3809

Published: July 31, 2023

Lake Xingkai is a large turbid lake composed of two parts, Small and Big Xingkai, on the border between Russia China, where it represents vital source water, fishing, water transport, recreation, tourism. Chlorophyll-a (Chla) prominent phytoplankton pigment proxy for biomass, reflecting trophic status waters. Regularly monitoring Chla concentrations issuing timely warnings this lake’s eutrophication. Owing to its higher spatial temporal coverages, remote sensing can provide synoptic complement traditional measurement methods by targeting optical absorption signals, especially lakes that lack regular in situ sampling cruises, like Xingkai. This study calibrated validated several commonly used retrieval algorithms (including two-band ratio, three-band method, four-band baseline methods) applying them Sentinel-3 Ocean Land Colour Instrument (OLCI) images Among these algorithms, model (FBA), which removes signal detritus colored dissolved organic matter, was best-performing with an R2 0.64 mean absolute percentage difference 38.26%. With FBA applied OLCI images, monthly distributions were studied from 2016 2022. The results showed over seven years, than Unlike other eutrophic China (e.g., Taihu Chaohu), did not display stable seasonal variation pattern. We also found uncertainties limitations algorithm models when using larger satellite zenith angle or algal bloom area. Recent increases anthropogenic nutrient loading, clarity, warming temperatures may lead rising biomass be satellite-based quality.

Language: Английский

New insights into cyanobacterial blooms and the response of associated microbial communities in freshwater ecosystems DOI

Caili Du,

Guowen Li, Rui Xia

et al.

Environmental Pollution, Journal Year: 2022, Volume and Issue: 309, P. 119781 - 119781

Published: July 13, 2022

Language: Английский

Citations

36
Global change and plant-ecosystem functioning in freshwaters DOI
Ying Pan, Jorge García–Girón, Lars Lønsmann Iversen

et al.

Trends in Plant Science, Journal Year: 2023, Volume and Issue: 28(6), P. 646 - 660

Published: Jan. 9, 2023

Language: Английский

Citations

21
Cyanobacterial blooms in Ontario, Canada: continued increase in reports through the 21st century DOI Creative Commons
Elizabeth J. Favot, Claire Holeton, Anna M. DeSellas

et al.

Lake and Reservoir Management, Journal Year: 2023, Volume and Issue: 39(1), P. 1 - 20

Published: Jan. 2, 2023

Favot EJ, Holeton C, DeSellas AM, Paterson AM. 2023. Cyanobacterial blooms in Ontario, Canada: continued increase reports through the 21st century. Lake Reserv Manage. 39:1–20.The Ontario Ministry of Environment, Conservation and Parks samples algal composition response to public suspected blooms, which have been tracked since 1994. In a previous analysis, Winter et al. noted significant number confirmed dominated by cyanobacteria from 1994 2009. Here, we determined that this increasing trend yearly cyanobacterial bloom (CCBRs) has persisted over intervening decade, 2019. More than half CCBRs were waterbodies on Precambrian Shield, Georgian Bay (5E) ecoregion, known for cottaging water-based tourism. Data Partner Program (LPP) was used investigate total phosphorus (TP) concentrations with CCBRs. Approximately 44% CCBR (mean TP 12.99 µg/L, n = 135) had average spring less 10 compared 64% LPP no reported or 9.79 918). The most common taxon dominating inland Dolichospermum, followed Aphanizomenon Microcystis Mixedwood Plains ecozone southern Ontario. While an awareness cannot be ruled out contributing rise across high proportion occurring oligotrophic suggests there may link climate warming, rendering conditions more favorable these occur.

Language: Английский

Citations

21
Rainstorm events trigger algal blooms in a large oligotrophic reservoir DOI
Pengcheng Shi, Mengyuan Zhu,

Rifu You

et al.

Journal of Hydrology, Journal Year: 2023, Volume and Issue: 622, P. 129711 - 129711

Published: May 25, 2023

Language: Английский

Citations

21
Toxic Algae in Inland Waters of the Conterminous United States—A Review and Synthesis DOI Open Access
Reynaldo Patiño, Victoria G. Christensen, Jennifer L. Graham

et al.

Water, Journal Year: 2023, Volume and Issue: 15(15), P. 2808 - 2808

Published: Aug. 3, 2023

Cyanobacteria are the most common toxigenic algae in inland waters. Their toxins can affect health of aquatic and terrestrial organisms, including humans. Other algal groups, such as haptophytes (e.g., Prymnesium parvum) euglenoids Euglena sanguinea), also form harmful blooms (HABs) whose cause injury to biota but currently have no known effects on human health. parvum, however, is responsible for some worst HAB-related ecological disasters recorded Here, we provide an overview primary found U.S. waters: cyanobacteria (planktonic forms), P. E. sanguinea with objective describing their similarities differences areas HAB ecology, toxins, potential future range expansion HABs. A detailed account bloom habitats associations land cover use provided from perspective water quality. This review revealed that salinity may influence cyanobacterial cyanotoxins had not been fully recognized previously.

Language: Английский

Citations

20
Lake browning counteracts cyanobacteria responses to nutrients: Evidence from phytoplankton dynamics in large enclosure experiments and comprehensive observational data DOI Creative Commons
Anne Lyche Solheim, Hege Gundersen, Ute Mischke

et al.

Global Change Biology, Journal Year: 2023, Volume and Issue: 30(1)

Published: Nov. 22, 2023

Abstract Lakes worldwide are affected by multiple stressors, including climate change. This includes massive loading of both nutrients and humic substances to lakes during extreme weather events, which also may disrupt thermal stratification. Since multi‐stressor effects vary widely in space time, their combined ecological impacts remain difficult predict. Therefore, we two consecutive large enclosure experiments with a comprehensive time‐series broad‐scale field survey unravel the storm‐induced lake browning, nutrient enrichment deep mixing on phytoplankton communities, focusing particularly potentially toxic cyanobacterial blooms. The experimental results revealed that browning counteracted stimulating effect caused shift from phototrophic cyanobacteria chlorophytes mixotrophic cryptophytes. Light limitation was identified as likely mechanism underlying this response. Deep‐mixing increased microcystin concentrations clear nutrient‐enriched enclosures, upwelling metalimnetic Planktothrix rubescens population. Monitoring data 25‐year eutrophic 588 northern European corroborate results: Browning suppresses terms biovolume proportion total biovolume. Both observational indicated lower phosphorus threshold for bloom development clearwater (10–20 μg P L −1 ) than (20–30 ). finding provides management guidance receiving more due frequent events.

Language: Английский

Citations

19
Strategies for regulating the intensity of different cyanobacterial blooms: Insights from the dynamics and stability of bacterioplankton communities DOI
Baohai Zheng,

Peichang Dong,

Teng Zhao

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 918, P. 170707 - 170707

Published: Feb. 6, 2024

Language: Английский

Citations

8
Autonomous UAV-Mounted LoRaWAN System for Real-Time Monitoring of Harmful Algal Blooms (HABs) and Water Quality DOI
Soheyl Faghir Hagh, Parmida Amngostar,

Adam Zylka

et al.

IEEE Sensors Journal, Journal Year: 2024, Volume and Issue: 24(7), P. 11414 - 11424

Published: Feb. 14, 2024

Harmful algal blooms (HABs) frequently occur in coastal and inland water bodies, resulting detrimental health economic consequences. In freshwater, HABs are often dominated by cyanobacteria (CyanoHABs or cHABs), which produce a suite of secondary metabolites ranging from taste odor compounds to liver neurological toxins. Recently, uncrewed aerial vehicles (UAVs) have emerged as cost-effective remote sensing solution for using imaging cameras monitor the distribution HABs. However, most these systems unable concurrently measure crucial parameters, requiring additional situ measurements sample collection. The UAV system developed this work presents comprehensive platform that integrates multiple sensors, including near-infrared (NIR) multispectral temperature, pH, turbidity sensors. integrated sensor can not only HAB distributions but also essential quality parameters. addition, electromechanical 3-D-printed sampling structure is designed collect samples laboratory analysis chemical biological samples. To ensure real-time data transmission, long-range wide area network (LoRaWAN) developed. An ArcGIS database implemented mapping. Comprehensive field tests been performed performance validation assessment.

Language: Английский

Citations

7
A tale of two blooms: do ecological paradigms for algal bloom success and succession require revisiting? DOI Creative Commons
Brittany N. Zepernick, R. Michael L. McKay, Robbie M. Martin

et al.

Journal of Great Lakes Research, Journal Year: 2024, Volume and Issue: 50(3), P. 102336 - 102336

Published: April 1, 2024

Lake Erie algal bloom discussions have historically focused on cyanobacteria, with foundational "blooms like it hot" and "high nutrient" paradigms considered as primary drivers behind cyanobacterial success. Yet, recent surveys rediscovered winter-spring diatom blooms, introducing another key player in the eutrophication story which has been overlooked. These blooms (summer vs. winter) treated solitary events separated by spatial temporal gradients. However, new evidence suggests they may not be so isolated, linked a manner that manifests an cycle. Equally notable are emerging reports of cold and/or oligotrophic freshwaters, interpreted some shifts classical paradigms. led many to ask "what is bloom?". Furthermore, questioning classic caused others wonder if we overlooking additional factors constrain In light data ideas, revisited concepts within context derived five take-aways: 1) Additional bloom-formers (diatoms) need included discussions, 2) The term "bloom" must reinforced clear definition quantitative metrics for each event, 3) Algal should studied solitarily, 4) Shifts physiochemical conditions serve alternative interpretation potential ecological paradigms, 5) success succession (i.e., pH light) require consideration.

Language: Английский

Citations

7
New York State Climate Impacts Assessment Chapter 10: Water Resources DOI Creative Commons
Kelsey Leonard, Stephen B. Shaw, Abraham Francis

et al.

Annals of the New York Academy of Sciences, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 9, 2024

Abstract Clean, abundant water is essential to the health of New York State's residents, ecosystems, and economy. This critical natural resource faces numerous challenges associated with climate change, including potential impacts on quality quantity source waters—both surface waters groundwater. Climate change can also affect infrastructure that treats delivers safe drinking Yorkers, manages wastewater protect quality, protects against flooding. The Water Resources chapter examines these highlights opportunities for Yorkers adapt build resilience as state's changes.

Language: Английский

Citations

6