Scientific FrontlineFeb 3
Elevated nutrient runoff, #freshwater discharges, and harmful #algal blooms are accelerating coastal acidification in Florida's Indian River Lagoon, resulting in critically low levels of #aragonite saturation necessary for shell-building organisms to survive.
#MarineBiology #Ecology #MarineBiogeochemistry #EstuarineEcology #sflorg
https://www.sflorg.com/2026/02/mb02032601.html
Shrinking Shellfish? Risks of Acidic Water in the Indian River Lagoon

Florida’s Indian River Lagoon is facing growing environmental stress from nutrient runoff

Scientific FrontlineNov 11
Harmful #algal blooms in #lakes and #reservoirs are explosions of cyanobacteria, often referred to as blue-green algae. #Microscopic #organisms ubiquitous in all types of water around the globe, cyanobacteria use sunlight to make their own food and in warm, nutrient-rich environments can quickly multiply
#Microbiology #Phycology #sflorg
https://www.sflorg.com/2025/11/mcb11112501.html
New analysis yields clearer picture of toxin-producing blue-green algae blooms

Microcystin is a recognized liver toxin and potential liver carcinogen, while cylindrospermopsin can affect multiple organs

Dining and CookingOct 13

Travel and dining vouchers on offer in SA’s algal bloom summer plan

Some customers at South Australian coastal dining venues will be able to access $50 cashback on their meal over summer under a $15 million state and federal government progr…
#dining #cooking #diet #food #Dining #algae #algal #Algalbloom #algalbloomtourism #bloomtourism #coastiscalling #tourismalgalbloom #tourismvouchers
https://www.diningandcooking.com/2329119/travel-and-dining-vouchers-on-offer-in-sas-algal-bloom-summer-plan/

Scientific FrontlineSep 30
The #algal blooms increasingly seen in Canadian lakes have been linked to both nutrient #pollution from #agricultural runoff and #climate change. However, a new Concordia-led study using #DNA sequencing of lakebed #microbes reveals that these two drivers amplify each other in ways that profoundly affect the health of lake #ecosystems.
#Ecology #Environmental #Microbiology #ClimateChange #sflorg
https://www.sflorg.com/2025/09/eco09302501.html
Microbial DNA sequencing reveals nutrient pollution and climate change reinforce lake eutrophication

New Concordia-led research shows the two drivers operate together in increasing risks to lake ecosystems

ΛήθαργοςJul 20, 2025

South #Australia ’s toxic #algal bloom is twice the size of the ACT, has killed 12,000 animals and is filling even the experts with dread

www.theguardian.com/australia-news/2025/jul/20/sas-toxic-algal-bloom-is-twice-the-size-of-the-act-has-killed-12000-animals-and-is-filling-even-the-experts-with-dread

Beaches are littered with fish carcasses and scientists warn they are only ‘the tip of the iceberg’ as underwater habitats deteriorate

SA’s toxic algal bloom is twice the size of the ACT, has killed 13,800 animals and is filling even the experts with dread

Beaches are littered with fish carcasses and scientists warn they are only ‘the tip of the iceberg’ as underwater habitats deteriorate

The Guardian
💧🌏 Greg CocksApr 28, 2025
New Sargassum System Takes Aim At A Troublesome Seaweed
--
https://www.usf.edu/marine-science/news/2025/new-sargassum-system-takes-aim-at-a-troublesome-seaweed.aspx <-- shared article
--
https://coastalscience.noaa.gov/project/developing-an-operational-sargassum-hab-monitoring-and-forecasting-system-for-the-southeastern-u-s-and-u-s-caribbean/ <-- shared technical article
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#GIS #spatial #mapping #remotesensing #satellite #fedscience #earthobservation #Caribbean #florida #puertorico #USVI #seaweed #Sargassum #risk #hazard #damage #impact #cleanup #removal #cost #economics #fisheries #tourism #mitigation #spatialanalysis #detection #spatiotemporal #marine #algal #algalbloom #SargassumWatchSystem #costsaving #inundation #imagery #harmfulalgalbloom #HAB #biomass
@NOAA
New Sargassum system takes aim at a troublesome seaweed

Resource managers in South Florida have a new tool in their fight against Sargassum thanks to a five-year, $3.2-million grant from the National Oceanic and Atmospheric Administration (NOAA) Monitoring and Event Response for Harmful Algal Blooms program.

CellBioNewsFeb 6, 2025

#Cyanobacteria #diversity challenges 'one-size-fits-all' #algal bloom solutions.

#pollution #HAB #Microcystis #climate_warming

https://phys.org/news/2025-02-cyanobacteria-diversity-size-algal-bloom.html

Cyanobacteria diversity challenges 'one-size-fits-all' algal bloom solutions

When populations of tiny aquatic organisms called cyanobacteria (formerly known as blue-green algae) explode, their toxic overgrowth can threaten human drinking water and cause wildlife deaths in events known as harmful algal blooms (HABs). In freshwater environments such as lakes, ponds and streams, a cyanobacterium known as Microcystis aeruginosa is responsible for most toxic harmful algal bloom episodes.

Phys.org
Scientific FrontlineJan 27, 2025
As harmful #algal blooms (HABs) continue to spread across the globe, urgent research is needed to address this growing threat.
#Engineering #Environmental #MaterialScience #sflorg
https://www.sflorg.com/2025/01/eng01272501.html
FAU Engineering Develops New Weapon against Harmful Algal Blooms

Few studies have looked into how algal biomass, especially cyanobacteria, also known as blue-green algae, can be used to create materials that remove

DoomsdaysCWJun 12, 2024

"What is causing this?
Things to know about FDA warning on paralytic shellfish poisoning in Pacific Northwest

by CLAIRE RUSH
Updated 5:29 PM EDT, June 10, 2024

"A 'very large' #algal bloom has resulted in “unprecedented levels” of PSP toxins along Oregon’s coast, Matthew Hunter, shellfish program manager for the Oregon Department of Fish and Wildlife, said during a briefing.

"The toxins have accumulated in the shellfish, sickening some people who have eaten them.

"While the factors that create harmful algal blooms are not well understood, certain factors — resulting from both natural processes and human activities — are believed to play a role, according to the National Oceanic and Atmospheric Administration.

“'Studies show that many algal species flourish when wind and water currents are favorable,' the agency says on a webpage dedicated to explaining harmful algal blooms. Some blooms, it says, stem from 'sluggish water circulation, unusually high #WaterTemperatures, and #ExtremeWeather events like #hurricanes, #floods, and #drought.'

"Algae growth can also increase when nutrients used in #fertilizers, mainly phosphorus and nitrogen, flow into bodies of water, according to the agency."

https://apnews.com/article/fda-warning-shellfish-oregon-washington-f5724c1b91fb78ed16c3f98a7c9e8cae

FDA warns on paralytic shellfish poisoning in Pacific Northwest. What to know

The U.S. Food and Drug Administration says consumers should avoid eating shellfish from Oregon and Washington state as they may be contaminated with toxins that cause paralytic shellfish poisoning. The federal warning follows shellfish harvesting closures in both states. Oregon authorities say elevated levels of toxins were first detected in shellfish along its coast on May 17. Since then, state health officials say at least 31 people in Oregon have been sickened. Paralytic shellfish poisoning is caused by a neurotoxin that's produced by algae. Symptoms range from numbing sensation to full respiratory paralysis. According to federal authorities, the Pacific Northwest shellfish industry employs more than 3,000 people and generates more than $270 million a year.

AP News
Knowledge ZoneMay 28, 2024

#PhotoOfTheDay: Ethereal #Algal vortex blooms at the heart of massive Baltic 'dead zone'

In 2018, satellite images captured a stunning spiral of #Cyanobacteria blooming in the Baltic Sea.

The swirling mass of microbes helped to create a massive "dead zone" the size of West Virginia that starved the surrounding water of oxygen.

https://www.livescience.com/planet-earth/rivers-oceans/earth-from-space-ethereal-algal-vortex-blooms-at-the-heart-of-massive-baltic-dead-zone

Earth from space: Ethereal algal vortex blooms at the heart of massive Baltic 'dead zone'

In 2018, satellite images captured a stunning spiral of cyanobacteria blooming in the Baltic Sea. The swirling mass of microbes helped to create a massive "dead zone" the size of West Virginia that starved the surrounding water of oxygen.

Live Science