#algaebloom — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #algaebloom, aggregated by home.social.
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Yikes! And I thought #KareniaMikimotoi was bad...
#SeaDragon populations decimated in ‘mind-blowing’ mass mortality event caused by #SouthAustralian #AlgalBloom
Thousands of #SeaDragons, #pipefishes and #seahorses have washed up along state’s coastline according to analysis of #CitizenScientist recordsPetra Stock
Sat 19 Sep 2026Excerpt: "Stefan Andrews, a marine biologist and co-founder of the Great Southern Reef Foundation, said the scale of the mortalities was 'mind blowing', especially for animals like sea dragons, which were rare to see and found in only a handful of locations along the coast.
More than 800 species have been affected in Australia’s first bloom of #KareniaCristata, a rare and toxic type of algae deadly to marine life."Surveys and reports were beginning to put numbers on the devastating toll, such as the catastrophic decline in #GiantCuttlefish this year, research made possible through the contributions of #CitizenScientists and divers.
" 'We saw so many people just step up and do their bit to report observations,' he said. 'Sometimes mortalities that wash up on the beach could have disappeared in a matter of hours. So to have all of this data and information that scientists can analyse deeply is so useful to get an understanding of what’s going on.' "
Archived version:
https://archive.ph/iStlB#AlgaeBloom #ToxicAlgae #ClimateDiaryAustralia #ClimateChange #ToxicAlgae #SouthAustralia #AlgalBloom #OceansAreLife #WaterIsLife
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#CascoBay #AlgaeBloom weakens in some areas, but shellfish impacts to continue
Harpswell's harbormaster said as the algae dies, it uses up oxygen marine life need to survive.
by Alex Haskell (NCM)
September 21, 2026HARPSWELL, Maine — "An algae bloom believed to be responsible for the deaths of thousands of shellfish in Casco Bay is weakening in some areas, but local officials said its effects could continue for weeks, and recovery could take years.
"The bloom has affected waters off #HarpswellME and #BrunswickME in recent weeks. Harpswell Harbormaster Darcie Couture said monitoring shows some improvement in places that were hit early.
" 'The areas that were first impacted, we’re watching the cell counts go down,' Couture said.
"However, declining algae levels can create another problem for marine life. As the algae dies, it uses up dissolved oxygen in the water.
" 'Dissolved oxygen is what’s out there in the water that everything else needs to survive—all the clams, the fish, everything that lives there,' Couture said. 'So we’re potentially looking at a second wave of impacts.'
"It could take days or weeks for oxygen levels to return to normal, according to Couture. In the meantime, additional marine life could die as oxygen levels remain low.
"Officials are also watching new blooms developing elsewhere in the region, including the #NewMeadowsRiver area at the northern end of Casco Bay.
" 'We’re trying to figure how to manage that and continue to track the bloom,' Couture said.
"The bloom has also prompted harvesting restrictions. Hundreds of acres of #mudflats under stress from the bloom are now closed to shellfish harvesting in Brunswick and Harpswell.
" 'The closure was put in place because of a request from the two towns over concerns that continued harvesting will cause additional stress and increased mortality,' Maine Department of Marine Resources Communications Director Jeff Nichols said in a statement.
"While those closures directly affect where shellfish harvesters can work, officials are still determining what the bloom could mean for local aquaculture operations.
" 'We’ve had some reports of sickly-looking oysters,' Couture told NEWS CENTER Maine.
"The full extent of the damage may not become clear for some time. Couture said the algae bloom could linger until late fall, and officials will need to conduct a survey after it disappears to determine its overall effect on the area's shellfish.
"She said the affected mudflats could take years to fully recover.
"Intense weather this fall could also complicate the situation by pushing additional blooms toward Maine waters, Couture added."
#ClimateDiaryMaine #ClimateChange #ToxicAlgae #Maine #AlgalBloom #OceansAreLife #WaterIsLife #KareniaMikimotoi
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A bloom nobody predicted turned into a national emergency within days. Here is what actually happened, what triggered it, and what it means for the Mediterranean's future.
Read Full Story ⬇️
https://exotastic.earth/mediterranean-micro-algae-bloom/🌊🦠💧 #MediterraneanSea #AlgaeBloom #IsraelWaterCrisis #Desalination #ClimateChange #MarineEcology #NileDelta #WaterSecurity #ExotasticEarth
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AI reveals a massive algae boom across the world’s oceans https://www.sciencedaily.com/releases/2026/08/260801042834.htm
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Having some excellent algae
#algae #algaebloom #algaegeddon -
This is what to look for this summer 👀
Increased temperatures and longer days = an increased likelihood of harmful algae blooms in the Bay.
But you can help! If you see signs of a bloom please stay out of the water, note down the details & reach out to our pollution hotline: https://baykeeper.org/report-pollution/
#sfbay #sanfranciscobay #algae #HAB #algaebloom #waterPollution #bayarea #harmfulalgaebloom
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"Algal blooms occur naturally but the frequency of such events has increased in recent years, in part due to climate change and pollution that combine to create nutrient-rich waters geared for the rapid spread of dinoflagellates" #algaebloom
Shall we do something about #ecologicalbreakdown, or not bother?
https://www.theguardian.com/australia-news/2026/jan/03/mystery-pink-slime-on-secluded-tasmanian-beach-prompts-fears-of-potential-algal-bloom?CMP=Share_AndroidApp_Other -
"Lough Neagh’s recurrent algal blooms, which choke aquatic life, are caused by an overload of phosphorus and nitrogen entering the lough system."
We have known about the relationship between #nutrient_runoff, #eutrophication and #algaebloom of all types since at least 1970 (well, at least those of of us who were old enough to follow the news, and actually paid attention to the environmental news.) Why hasn't there been more action to correct these problems?
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We need your help keeping an eye out for #algae blooms in the Bay 🦠
As the weather heats up, conditions will be ripe for harmful algae blooms (HABs). After a devastating #HAB in 2022, we ramped up our algae monitoring program and now have a team algae sampling across the Bay Area through the summer.
But we could always use more eyes on the Bay 👀 If you see coffee-colored water or unusually red or bright green water in the Bay, take photos, note down the time & exact location, and reach out to our pollution tip line: https://baykeeper.org/report-pollution/
Photos: First two photos are of brown-colored water during a small algae bloom in #Alameda in 2024 that luckily dissipated quickly. The third photo is a close-up image of the alga Akashiwo sanguinea 🔬 and the last image is of our team collecting samples from the Bay #algaebloom #harmfulalgaeblooms #sanfraniscobay #bayarea #sfbay #waterpollution
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I found this from a few days ago...
June 15, 2025
The GIST'Like an underwater bushfire': South Australia's marine algal bloom is still killing almost everything in its path
by Erin Barrera, The Conversation
https://phys.org/news/2025-06-underwater-bushfire-south-australia-marine.html
#Australia #algalBloom #ToxicAlgae #Climate #OceanTemperature #AlgaeBloom #SouthAustralia
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VCSTAR: Bloom turns water off Ventura a reddish-brown color
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Total Economic Impact Of 2018 [Florida, USA] Red Tide Now Estimated at $2.7B
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https://coastalscience.noaa.gov/news/total-economic-impact-of-2018-red-tide-now-estimated-at-2-7b/ <-- shared article
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https://doi.org/10.1016/j.jenvman.2023.119811 <-- shared paper
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https://habforecast.gcoos.org/ <-- shared Red Tide Respiratory Forecast web map
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#GIS #spatial #mapping #fedservice #fedscience #Florida #alldataisspatial #USA #redtide #cost #economics #tourism #tourist #economy #localeconomy #algaebloom #fish #fisheries #ecosystems #humanimpacts #anthropogenic #habitat #2018redtide #publichealth #RedTideRespiratoryForecast #forecast #monitoring #spatialanalysis #spatiotemporal
#NOAA -
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BBC: Toxic algae kills more than 200 marine species in Australia
"...More than 200 marine species off the coast of South Australia (SA) have been killed by a weeks-long toxic algae explosion, in what conservationists have described as "a horror movie for fish"...."
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How Humanure Could Change The World (If We Don’t Turn Up Our Noses!)
"What problems does humanure solve?
Food Security & Food Prices
"2021 was not a good year for farmers buying fertilizer, with prices rocketing by 80%.
"Any hopes of relief would soon be dashed when the Ukraine war started. Russia, a key fertilizer manufacturer, restricted exports and global shipping companies veered away from the country, leading to fertilizer prices reaching an all-time high.
"These problems have helped contribute to sky-high food prices and a cost of living crisis for millions of people. Yet at the same time, on average each of us produces 145 kg a year of excrement.
"(Total annual world poop has been valued at 9.5 billion dollars, albeit as an energy source rather than as fertilizer.)
"Some countries do attempt to reclaim the nutrients while treating wastewater. Unfortunately, it’s an inefficient process, with around 90% of phosphorus lost in the process.
"Turn that excrement into compost, and we could reduce our reliance on other, sometimes unstable, countries.
"At the same time, and especially in the poorer areas of the world which are less able to afford fertilizer, humanure could help to improve the quality of poor agricultural land, improving soil structure and reducing the impact of drought.
Reduce water wasteWhat happens to all that food waste?
"In those of us lucky enough to live in rich countries, it is flushed down the loo with water clean and pure enough to drink out of.
"Each flush uses about 6 liters of water, and on average we go to the toilet 6-7 times a day. In total, we use about 36-42 liters of treated water to get rid of valuable organic waste.
Reduce #WaterPollution
"And what happens to that water once we have defecated? In rich countries and in poor, it can often end up in rivers and seas.
"Water pollution doesn’t just come from our waste, either. The nutrients in artificial fertilizers are often readily available to plants, but that also means it is easily washed out by rain into our rivers and water courses.
"That all means our water has huge amounts of nitrogen in it. This causes algae blooms which throw off toxins that can cause brain and liver damage.
"As the #AlgaeBloom dies, they suck the oxygen out of the water creating dead zones where nothing can live.
In contrast, many of the nutrients in compost are fixed in organic materials and are not easily washed out by rain.
"Instead, they are steadily taken up by microorganisms, some of which work in a symbiotic relationship with plants.
Reduce emissions
"A lot of blame gets put on farting cows, but human waste also releases damaging greenhouse gasses – especially in our current waste management systems.
"In fact, it’s estimated that human sanitation accounts for between 2 and 6% of methane emissions alone.
"Proper composting has the potential to vastly reduce that number. In fact, one study in Haiti found that composted human waste released 0.5% methane – compared to between 20-80% for the pit latrines and lagoon methods often used in third-world countries.
"And that’s even before we start to count the cost of shipping fertilizer around the world!
Solve sanitation problems in poor countries
"3.6 billion people still don’t have access to proper sanitation – and 494 million people still have to defecate outside. That leads to diseases almost eliminated in the West – diseases which kill over 485,000 people every single year.
"Yet the work of charities in these countries shows what can be achieved. In Haiti, for example, SOIL has provided sanitary toilets for 6000 people while turning 510 tons of excrement into agricultural-grade fertilizer.
What about human disease?
"It is, of course, natural to worry about disease. After all, we have just been talking about the diseases caused by human excrement which has not been treated.
"Science tells us, though, that if the right composting conditions are used there’s little risk to the process. As compost gets hot, #ThermophilicBacteria destroy many pathogens.
"More get killed in the maturing process, aided by the ability of worms to destroy antibiotic-resistant genes.
Challenges…
"While humanure is popular with #permaculture fans, it’s unlikely to gain mass traction in the richer parts of the world.
"Trained by convenience and ease, it’s hard to see how people will transition from flushing down poop with water in pristine toilets to collecting excrement and lumping it to a compost pile.
"Even for those who are fans, its application is likely just not viable for the many people who live in high-rise apartments and dense city blocks with little or no gardens.
"There is also the problem of our legacy sanitation systems.
"These are designed to flush all down in one with water. Replacing every pipe and toilet with a system designed to collect waste and somehow funnel it to a compost facility is likely to be hugely expensive.
And opportunities…
"A more intriguing possibility lies in the poorer parts of the world. In stark contrast to the white porcelain that greets and graces our bottoms, a huge amount of people don’t have access to good sanitation.
"With little to lose in terms of comfort and more to gain both in terms of sanitation, reduced disease and increased fertility for often poor soil, compost toilets have proved an easier ask in third-world countries.
"Scaling current efforts, though, is another thing. Perhaps when countries do come to building infrastructure in their poorer regions, systems will be designed which capture the value of our waste, rather than flush it down expensive toilets and into our rivers and seas."
https://www.compostmagazine.com/humanure/
#Humanure #SolarPunkSunday #Sustainability #WaterIsLife #Agriculture #Phosphorus -
Drought is making Sao Paulo’s river emerald green while smoke turns its skies grey
The Pinheiros River in Sao Paulo, #Brazil is suddenly emerald green and clear skies this week turned from blue to grey. The state’s environmental authority attributes the river’s new green hue to an #algaebloom, the result of severe #drought that has significantly lowered #water levels.
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Ew. I used to live across the street from this lake. #Reno #AlgaeBloom
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Back to my usual #DoomAndGloom posts. Soooo... Has anyone considered that maybe some of the #algae exposed to #radioactivity *might* be mutating? That's *not* a good thing...
Absorption of #Radionuclides from the #Fukushima Nuclear Accident by a Novel #AlgalStrain
Hiroki Shimura, et al.
September 12, 2012"Here we describe the accumulation of water-soluble #radionuclides released by nuclear reactors by a novel [NEW] strain of alga. The newly discovered green microalgae, Parachlorella sp. binos (Binos) has a thick alginate-containing extracellular matrix and abundant chloroplasts. When this strain was cultured with radioiodine, a light-dependent uptake of radioiodine was observed."
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3440386/
#Radiation #AlgaeBloom #NoNukes #NoNewNukes #RethinkNotRestart -
I'm seeing a pattern here...
"'On March 14, the Minnesota Department of Natural Resources responded to a fish die off on Traverse Lake in southwest #Minnesota near the city of Wheaton. DNR staff collected fish samples and checked dissolved oxygen in the water. The cause of the die off appears to be gas supersaturation trauma, also known as gas bubble disease, likely the result of an #AlgaeBloom in the lake,' a spokesperson for the Minnesota Department of Natural Resources told Newsweek in an email."
Thousands of Fish Found Dead as Ice Melts on Minnesota Border Lake
Published Mar 20, 2024
"Thousands of dead fish have been found in a Minnesota lake at the same time all its ice has melted.
"An estimated 2,000 to 3,000 fish were found dead in Lake Traverse, which lies along the border with #SouthDakota, on March 14, the West Central Tribune reported. They included freshwater drum, crappies, bluegills, white bass and bluegills. There was also a handful of smallmouth bass and walleye."
Read more:
https://www.newsweek.com/thousands-fish-dead-ice-melts-lake-1881449#HABs #HarmfulAlgaeBlooms #Extinction #ToxicAlgae #ClimateChange #ClimateCrisis #WaterIsLife #WaterTemperatures
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A talk with PhD candidate Edson Silva about about one of the newest tools in our predicting arsenal, an algae bloom predictor. Trained on the coast of north #Norway, it can be a great support for managing our costs, but it can be retrained for usage anywhere: https://bjerknessenteret.podbean.com/e/predicting-algae-blooms-a-new-tool-in-our-arsenal/ #ClimatePrediction #AlgaeBloom #Climate #Research #Podcast
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Last summer's fish-killing #algae bloom is back in the Bay:
“Two years in a row is quite alarming,” our science director Jon Rosenfield told KQED, noting that it remained unclear how bad the bloom will get.
“There’s really nothing that people can do to stop a bloom like this once it’s started. It just has to burn itself out.”
https://www.kqed.org/science/1983631/last-summers-fish-killing-algae-bloom-is-back-in-the-bay #waterpollution #algaebloom #harmfulalgaeblooms #HABs #SFBay #sanfranciscobay #bayarea -
Likely #AlgaeBloom Reported Along Central East Bay Shoreline. SF Baykeeper Suspects Same Red Tide Algae as Last Year. https://yubanet.com/california/likely-algae-bloom-reported-along-central-east-bay-shoreline/
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FROM BBC.com: “Windermere algal bloom prompts warning to stay out of water”
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The pollution causing harmful algal blooms
By Tim Smedley
Rising temperatures and pollution have led to an explosive growth of harmful algal blooms, contaminating our drinking water and harming human health.https://www.bbc.com/future/article/20230110-the-pollution-causing-harmful-algal-blooms
