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  • Keyword = harmful algal blooms OR HABs.
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Records 1 to 25 of 384

Monitoring Cyanobacteria in Western Lake Superior and Chequamegon Bay using the Sentinel 3 Spaceraft: Preliminary Results
(PRESENTATION) [Presented : Jul 26, 2021]
Phycocyanin is a cyanobacteria-specific pigment that is a good indicator of cyanobacteria blooms and abundance although its concentration may vary depending on phytoplankton population. The Ocean and Land Color Imager (OLCI) on Sentinel 3 is equipped with spectral bands required ...
Comparative and predictive toxicology provide integrative bridges for planetary, eco- and one health
(JOURNAL) [Published : Apr 01, 2020]
Systems approaches are necessary to protect global health and the environment from pollution. Planetary Health, EcoHealth and One Health are systems based initiatives, but require sound theoretical platforms to address chemical pollution. Comparative and predictive toxicology, wh...
Observation of Harmful Algal Blooms with Ocean Colour Radiometry
(PUBLISHED REPORT) [Published : Mar 03, 2021]
Humans are exposed to harmful algal blooms (HABs) through a number of different pathways including ingestion, inhalation, and dermal uptake. Good water quality is necessary to support drinking water supplies, aquatic life, as well as recreation in, and on, the water. These resour...
Agricultural Conservation Practice Effectiveness: What We Have Learned and Future Needs
(PRESENTATION) [Presented : Jul 16, 2021]
This presentation introduces the first edition of a special collection of literature reviews documenting performance and cost effectiveness of selected agricultural conservation practices (ACPs). The specific objectives are to summarize key information from each review paper and ...
Co-occurring microorganisms regulate the succession of cyanobacterial harmful algal blooms
(JOURNAL) [To be published : Nov 01, 2021]
Cyanobacterial harmful algal blooms (CyanoHABs) have been found to transmit from N2 fixer-dominated to non-N2 fixer-dominated in many freshwater environments when the supply of N decreases. To elucidate the mechanisms underlying such “counter-i...
Feeling the burn: current research and emerging issues in fire, water quality, and aquatic ecosystems
(PRESENTATION) [Presented : Jun 12, 2020]
Although wildfire is a natural disturbance in many ecosystems, wildfire extent and frequency are increasing across much of North America, particularly in the western United States. There is an urgent need for researchers, managers and the general public to understand and anticipa...
Ecological Insights into Assembly Processes and Network Structures of Bacterial Biofilms in Full-scale Biologically Active Carbon Filters under Ozone Implementation
(JOURNAL) [Published : Jan 10, 2021]
To address the adverse effects of harmful algal blooms, there are increased demands over the implementation of ozone-biologically active carbon (BAC) filters in the drinking water treatment plants. Although the microbial biofilms are vital elements to support the proper performan...
Real Time Risk Characterization Tool for HABs on the Ohio River
(PRESENTATION) [Presented : Jun 29, 2021]
Present Ohio River HABs Risk Characterization Tool developed as part of a RARE project with R3, R5 and ORSANCO as part of monthly Ohio River Discussion Series. The series was created by the Ohio River Recreation Trail in 2020. In 2021, the Series was expanded with additional part...
Large-scale Patterns of Antimicrobial Resistance Genes and Fecal Indicator Bacteria in United States Rivers and Streams
(PRESENTATION) [Presented : Apr 08, 2021]
Collaborating with States and Tribes, the United States Environmental Protection Agency (EPA) conducts periodic and rotating, probabilistic surveys of: U.S. rivers and streams; estuarine and Great Lakes nearshore coastal waters; lakes and ponds; and wetlands from the lower contig...
Economic Modeling for Source Water Protection
(PRESENTATION) [Presented : Apr 21, 2021]
With the expanding list of concerns about drinking water quality and safety (e.g., harmful algal blooms, disinfection byproducts), it is becoming increasingly important to understand the associated costs and potential benefits of better watershed management for drinking water tre...
WQX User Call: U.S. EPA Freshwater Explorer
(PRESENTATION) [Presented : Jun 24, 2021]
U.S. EPA’s Freshwater Explorer (https://arcg.is/KHb9S) is an interactive web-based mapping tool that provides color-coded information about background and observed salt and mineral content for freshwater streams, lakes, and wells in all 50 U.S. states, Puerto Rico and the U...
Effectiveness of Crop Rotation on Water Quality Improvement: A Synthesis
(JOURNAL) [Published : Mar 01, 2021]
Legumes included in corn-based crop rotation systems provide a variety of benefits to the subsequent crops and potentially to the environment. This review aims to synthesize available data from the literature on legume N credits and the effects of crop rotations on water quality,...
CyAN 2019 Summary
(PRESENTATION) [Presented : Jul 24, 2020]
Changes in water quality can be challenging to detect, even in communities where routine monitoring occurs. Observing changes across multiple places and during various times can be difficult resulting in missed events such as the sudden development of cyanobacterial harmful algal...
Prediction of Harmful Algal Blooms in Lake Erie At Sub-Monthly Timescales
(PRESENTATION) [Presented : Jun 11, 2021]
The growth dynamics of harmful algae Cyanobacteria (CyanoHAB) are highly variable over various temporal scales. At sub-daily timescales, CyanoHAB concentrations exhibit chaotic behavior. However, at annual timescales, these concentrations can be predicted by available nutrients a...
Analyzing long-term water quality of lakes in Rhode Island and the northeastern United States with an anomaly approach
(JOURNAL) [Published : Jun 09, 2021]
Addressing anthropogenic impacts on aquatic ecosystems is a focus of lake management. Controlling phosphorus and nitrogen can mitigate these impacts, but determining management effectiveness requires long-term datasets. Recent analysis of the LAke multi-scaled GeOSpatial and temp...
Remotely sensed cyanobacterial intensity predicts likelihood of lake blooms and toxins across the contiguous US.
(PRESENTATION) [Presented : May 19, 2021]
Cyanobacterial harmful algal blooms (CHABs) can produce toxins that impair freshwater ecosystems used for drinking water, recreation, and habitat for aquatic biota. With CHABs increasing in extent and intensity globally, water managers need information about how to prioritize lak...
CyANWeb: Cyanobacteria Assessment Network Cross-Platform Responsive Web Application (NEHA 2021)
(PRESENTATION) [Presented : Jun 02, 2021]
The Cyanobacteria Assessment Network (CyAN) is a multi-agency (NASA, USGS, NOAA, and EPA) project whose mission supports the environmental management and safe public use of U.S. lakes and reservoirs by providing a capability of detecting and quantifying algal blooms using satelli...
Satellite Ocean Colour: Current Status and Future Perspective
(JOURNAL) [Published : Aug 29, 2019]
Spectrally resolved water-leaving radiances (ocean colour) and inferred chlorophyll concentration are key to studying phytoplankton dynamics at seasonal and inter-annual scales, for a better understanding of the role of phytoplankton in marine biogeochemistry; the global carbon c...
Letter to the Editor: Comments on “Springs drive downstream nitrate export from artificially-drained agricultural headwater catchments” by Goeller et al., 2019
(JOURNAL) [To be published : Aug 20, 2021]
This is a letter to editor regarding a paper "Spring drive downstream nitrate export from artificially-drained agricultural headwater catchments". The authors believe that the monitoring method and subsequently interpreted data from that monitoring presented in the pape...
Increasingly severe cyanobacterial blooms and deep water hypoxia coincide with warming water temperatures in reservoirs
(JOURNAL) [Published : May 07, 2021]
Cyanobacterial blooms are expected to intensify and become more widespread with climate change and sustained nutrient pollution, subsequently increasing threats to lentic ecosystems, water quality, and human health. However, little is known about their rates of change because lon...
Operationalizing “One Health”: Integrating Remote Sensing and Citizen-Based Observations
(PRESENTATION) [Presented : Nov 13, 2018]
The “One Health” concept promotes transdisciplinary collaborations that lead scientists and community practitioners to identify risk factors, develop innovative approaches, and implement established strategies for intervention, as they relate to human, animal, and env...
Remotely sensed cyanobacterial intensity predicts likelihood of lake blooms and toxins across the contiguous US
(PRESENTATION) [Presented : Apr 15, 2021]
Cyanobacterial harmful algal blooms (CHABs) can produce toxins that impair freshwater ecosystems used for drinking water, recreation, and habitat for aquatic biota. With CHABs increasing in extent and intensity globally, water managers need information about how to prioritize lak...
Remote Sensing of Cyanobacteria in Lakes: The CyAN Web App and National Modeling
(PRESENTATION) [Presented : Apr 28, 2021]
Cyanobacterial harmful algal blooms (CHABs) can produce toxins that impair freshwater ecosystems used for drinking water, recreation, and habitat for aquatic biota. With CHABs increasing in extent and intensity globally, water managers need information about how to prioritize lak...
EPA Research on Assessment and Management of Harmful Algal Blooms (HABs)
(PRESENTATION) [Presented : May 04, 2021]
Harmful algal blooms are increasing in frequency, intensity, and geographic range, posing a risk to human, pets, and livestock; impacting recreation; and causing significant ecological and economic damage. Harmful algal blooms are complex ecological processes that are affected by...
Effectiveness of Nutrient Management on Water Quality Improvement: A Synthesis on Nitrate-Nitrogen Loss from Subsurface Drainage
(JOURNAL) [Published : Mar 01, 2021]
Nutrient management, as described in NRCS Code 590, has been intensively investigated, with research largely focused on crop yields and water quality. Yet, due to complex processes and mechanisms in nutrient cycling (especially the nitrogen (N) cycle), there are many challenges i...