All news related to Harmful Algal Blooms

Study to evaluate performance of film-based passive samplers for measuring microcystins

SCCWRP and its partners have launched a two-year study to evaluate the performance of novel, film-based passive sampling technology for measuring a class of cyanotoxins known as microcystins. The passive ... More

Advisory group convened to consider developing cyanotoxin thresholds for aquatic life

SCCWRP has convened a technical advisory group to study whether the State Water Board should develop cyanotoxin monitoring thresholds that better protect vulnerable aquatic life from the impacts of ecologically ... More

Science products endorsed as foundation for crafting statewide stream policy

An expert scientific panel has endorsed a set of draft science products developed by SCCWRP as a strong technical foundation for crafting a State Water Board policy intended to better ... More

Workgroup to design statewide HABs monitoring program

California’s Surface Water Ambient Monitoring Program (SWAMP) has convened a workgroup to be facilitated by SCCWRP that will work toward developing a statewide strategy for monitoring harmful algal blooms (HABs) ... More

Film-based passive sampling for tracking cyanotoxins to be evaluated at L.A.-area lakes

SCCWRP and its partners have identified at least two Los Angeles-area lakes where a class of cyanotoxins known as microcystins appears to be present, paving the way for researchers to ... More

Bight ’18 HABs study preparing to track freshwater cyanotoxins in coastal zone

The Southern California Bight 2018 Regional Monitoring Program’s Harmful Algal Blooms element has tentatively greenlighted a study that will explore whether freshwater cyanotoxins are being transported in the coastal zone. ... More

Effort launched to develop statewide monitoring strategy for freshwater HABs

A SCCWRP field crew explores novel methods for monitoring harmful algal blooms in Lake Elsinore in Riverside County. SCCWRP and its partners have kicked off an effort to develop a ... More

Expert panel reviewing science tools for proposed stream biointegrity-biostimulatory policy

A panel of scientific experts has launched a comprehensive review of a suite of technical products co-authored by SCCWRP that are intended to support the State Water Board in developing ... More

Science tools for proposed stream biointegrity-biostimulatory policy released in draft form

The State Water Board has published draft versions of a suite of technical reports, journal manuscripts and tools co-authored by SCCWRP that will serve as the technical foundation for the ... More

Santa Margarita River study examining how to develop ‘climate-ready’ eutrophication targets

SCCWRP and its partners have begun investigating how climate change could influence efforts to reduce eutrophication in the Santa Margarita River watershed, part of a five-year study exploring how to ... More

Acidification modeling effort being expanded to toxic marine algal blooms

Researchers working to develop a West Coast computer model that predicts how land-based nutrient sources influence coastal ocean acidification and hypoxia are expanding the effort to examine the potential role ... More

Study to explore potentially cheaper, more precise methods for quantifying cyanotoxins in lakes, streams

SCCWRP and its partners have launched a three-year study to evaluate potentially cheaper, more precise sampling and analysis methods for tracking cyanotoxin levels in streams and lakes in the Los ... More

Bight ’18 HABs element developing method to track impacts of cyanotoxins in coastal waters

The Harmful Algal Blooms element of the Southern California Bight 2018 Regional Monitoring Program has begun working to develop an assessment method for tracking the ecological impacts of freshwater cyanotoxins ... More

Set of models built for establishing nutrient loading targets for Santa Margarita River

SCCWRP and its partners have finished assembling an integrated toolkit of mechanistic computer models and empirical statistical models that water-quality managers can use to optimally protect biological integrity and human ... More

Study to explore optimal methods for monitoring cyanotoxins

SCCWRP and its partners will seek to develop more robust field methods for monitoring cyanotoxins in aquatic environments during a new study kicking off this summer in the Los Angeles ... More

Science tools for proposed biointegrity-biostimulatory policy to be released this summer

SCCWRP and its partners will begin soliciting public comments this summer on a series of new scientific tools and synthesis reports that will form the technical backbone for a proposed ... More

Algae-based stream scoring tool to be finalized this fall

An assessment tool that will score the ecological health of California wadeable streams by analyzing algal communities is scheduled to be finalized and published as early as this fall. The ... More

Models being built to establish nutrient loading targets for Santa Margarita River

SCCWRP and its partners have begun assembling a suite of models to support development of scientifically defensible nutrient loading targets for reducing eutrophication in the lower Santa Margarita River watershed. ... More

Study launched to document fate of algal toxin in sediment

SCCWRP and its partners have initiated a study examining whether an algal toxin known as domoic acid can linger in seafloor sediment following a harmful algal bloom (HAB) event. The ... More

Field data collection completed for Santa Margarita River nutrient management study

SCCWRP and its partners have completed field data collection for a three-year project seeking to establish scientifically defensible nutrient loading targets for reducing eutrophication and improving biological integrity in the ... More

Utah officials trained on HABs monitoring techniques at SCCWRP

SCCWRP in August trained representatives from the Utah Department of Agriculture and Food on techniques for monitoring harmful algal blooms (HABs) in irrigation systems in Utah, part of an effort ... More

Field testing underway to explore monitoring applications for recently acquired UAS

SCCWRP and its partners have initiated a series of field experiments examining how a pair of recently acquired unmanned aerial systems (UAS) could be used to improve the speed and ... More

EPA workshop focuses on science-informed solutions for managing HABs

About 150 water-quality managers from across the nation discussed the state of knowledge about harmful algal blooms (HABs) and best-practices solutions and strategies for combatting them during a management-focused workshop ... More

Pilot study shows potential of UAS for remote environmental monitoring applications

SCCWRP and its partners have demonstrated in a pilot study that traditional and multispectral cameras mounted to an unmanned aerial system (UAS) can be used to produce high-resolution, 3D mapping ... More

Macroalgal work being used to draft updated nutrient TMDL for Santa Margarita River Estuary

A SCCWRP-led investigation into how to set scientifically defensible macroalgal biomass and nutrient loading targets in the Santa Margarita River Estuary is serving as the basis of a proposed alternative ... More

Field sampling kicks off for linking freshwater HABs to marine impacts

SCCWRP and its partners have launched the field sampling for a study that will examine how freshwater toxins influence downstream waterbodies along the California coast. The goal is to understand ... More

Field sampling kicks off for linking freshwater HABs to marine impacts

SCCWRP and its partners have launched the field sampling for a study that will examine how freshwater toxins influence downstream waterbodies along the California coast. The goal is to understand ... More

Prototype image processing system could provide early warnings for HAB events

SCCWRP has partnered with Ohio’s NASA Glenn Research Center and Wright State University to build a prototype computer system that can autonomously analyze aerial photos of water bodies susceptible to ... More

Year 2 sampling of toxic algae wraps up for 2 recreational lakes

SCCWRP and its partners have finished the second year of sampling in two Riverside County lakes for a study chronicling the proliferation of toxic algae through the bloom season. During ... More

Prototype image processing system could provide early warnings for HAB events

SCCWRP has partnered with Ohio’s NASA Glenn Research Center and Wright State University to build a prototype computer system that can autonomously analyze aerial photos of water bodies susceptible to ... More

SCCWRP assembles expert panel to help set eutrophication indicator ranges for California streams

SCCWRP has assembled a 16-member panel of experts to place stream sites across California into different classes based on the ecological health of their algae and bottom-dwelling macroinvertebrate communities, a ... More

Santa Margarita River study offers insights on reducing nutrient loading to estuaries

SCCWRP and its partners have completed the first phase of a five-year study exploring how water-quality managers can set appropriate, scientifically defensible targets for reducing nutrient loading in the Santa ... More

SCCWRP, partners seeking comments on framework for assessing nutrient overenrichment in S.F. Bay

SCCWRP and its partners are seeking public comment on a draft of a scientific assessment framework that will be used for assessing the effects of nutrient overenrichment in San Francisco ... More

Likely causes of cyanobacterial blooms, nuisance vegetation in Bay Delta chronicled in new reports

SCCWRP and its partners have completed a comprehensive review of the likely causes of cyanobacterial blooms and nuisance vegetation in the San Francisco Bay Delta, concluding that nutrient loading likely ... More

HAB experts develop statewide strategy for responding to toxic cyanobacterial blooms

A group of scientific experts on harmful algal blooms in California has developed a statewide strategy for responding to HABs and mitigating their impacts in water bodies across California. The ... More

Harmful algae conference focuses on research, strategy

Researchers and environmental managers working to understand and address the threat of harmful algal blooms (HABs) across the nation coalesced in Long Beach in November for a five-day national scientific ... More