#algalbloom — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #algalbloom, aggregated by home.social.
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I had a bad feeling that this summer would be the last time I would have fried clams...
Dead clams, worms reported amid #CascoBay #AlgalBloom
Story by Griffin Stockford, 9/9/2026
"Dead and dying clams and worms, brown water, and a strong odor of decay have been reported along parts of the Harpswell coast as the Maine Department of Marine Resources monitors a widespread algal bloom in Casco Bay.
"Clam harvesters in #HarpswellME began reporting the unusual conditions, prompting the town's harbormaster to ask coastal residents and harvesters to document what they see and provide photographs, descriptions, and exact locations.
"The Maine Department of Marine Resources has also confirmed it is monitoring a bloom of the commonly occurring phytoplankton #KareniaMikimotoi.
"The bloom has been observed from Portland Harbor to Middle Bay, with additional reports from waters in New Hampshire and Massachusetts, according to DMR. Phytoplankton counts in Portland reached 2 million cells per liter, according to officials.
"DMR staff and members of the public have reported brown discoloration of the water and an accompanying odor.
"Early reports indicate clam deaths in Middle Bay and #MaquoitBay may be related to the bloom, according to DMR.
"The agency said Karenia mikimotoi is not a threat to human health, unlike some other harmful algal blooms that can produce toxins associated with shellfish poisoning. However, the phytoplankton can have harmful effects on marine organisms.
"The species can produce compounds that potentially affect fish and shellfish. #FishKills and other marine mortality events have been reported during blooms of Karenia mikimotoi in locations including #HongKong, #Australia, #Ireland, #Japan, #Korea and #Alaska."
Read more:
https://www.msn.com/en-us/news/other/dead-clams-worms-reported-amid-casco-bay-algal-bloom/ar-AA2bSmQt#Maine #MaineNews #CascoBay #ToxicAlgae #MarineLife #WaterIsLife #ClimateChange #ClimateDiaryMaine
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I had a bad feeling that this summer would be the last time I would have fried clams...
Dead clams, worms reported amid #CascoBay #AlgalBloom
Story by Griffin Stockford, 9/9/2026
"Dead and dying clams and worms, brown water, and a strong odor of decay have been reported along parts of the Harpswell coast as the Maine Department of Marine Resources monitors a widespread algal bloom in Casco Bay.
"Clam harvesters in #HarpswellME began reporting the unusual conditions, prompting the town's harbormaster to ask coastal residents and harvesters to document what they see and provide photographs, descriptions, and exact locations.
"The Maine Department of Marine Resources has also confirmed it is monitoring a bloom of the commonly occurring phytoplankton #KareniaMikimotoi.
"The bloom has been observed from Portland Harbor to Middle Bay, with additional reports from waters in New Hampshire and Massachusetts, according to DMR. Phytoplankton counts in Portland reached 2 million cells per liter, according to officials.
"DMR staff and members of the public have reported brown discoloration of the water and an accompanying odor.
"Early reports indicate clam deaths in Middle Bay and #MaquoitBay may be related to the bloom, according to DMR.
"The agency said Karenia mikimotoi is not a threat to human health, unlike some other harmful algal blooms that can produce toxins associated with shellfish poisoning. However, the phytoplankton can have harmful effects on marine organisms.
"The species can produce compounds that potentially affect fish and shellfish. #FishKills and other marine mortality events have been reported during blooms of Karenia mikimotoi in locations including #HongKong, #Australia, #Ireland, #Japan, #Korea and #Alaska."
Read more:
https://www.msn.com/en-us/news/other/dead-clams-worms-reported-amid-casco-bay-algal-bloom/ar-AA2bSmQt#Maine #MaineNews #CascoBay #ToxicAlgae #MarineLife #WaterIsLife #ClimateChange #ClimateDiaryMaine
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I had a bad feeling that this summer would be the last time I would have fried clams...
Dead clams, worms reported amid #CascoBay #AlgalBloom
Story by Griffin Stockford, 9/9/2026
"Dead and dying clams and worms, brown water, and a strong odor of decay have been reported along parts of the Harpswell coast as the Maine Department of Marine Resources monitors a widespread algal bloom in Casco Bay.
"Clam harvesters in #HarpswellME began reporting the unusual conditions, prompting the town's harbormaster to ask coastal residents and harvesters to document what they see and provide photographs, descriptions, and exact locations.
"The Maine Department of Marine Resources has also confirmed it is monitoring a bloom of the commonly occurring phytoplankton #KareniaMikimotoi.
"The bloom has been observed from Portland Harbor to Middle Bay, with additional reports from waters in New Hampshire and Massachusetts, according to DMR. Phytoplankton counts in Portland reached 2 million cells per liter, according to officials.
"DMR staff and members of the public have reported brown discoloration of the water and an accompanying odor.
"Early reports indicate clam deaths in Middle Bay and #MaquoitBay may be related to the bloom, according to DMR.
"The agency said Karenia mikimotoi is not a threat to human health, unlike some other harmful algal blooms that can produce toxins associated with shellfish poisoning. However, the phytoplankton can have harmful effects on marine organisms.
"The species can produce compounds that potentially affect fish and shellfish. #FishKills and other marine mortality events have been reported during blooms of Karenia mikimotoi in locations including #HongKong, #Australia, #Ireland, #Japan, #Korea and #Alaska."
Read more:
https://www.msn.com/en-us/news/other/dead-clams-worms-reported-amid-casco-bay-algal-bloom/ar-AA2bSmQt#Maine #MaineNews #CascoBay #ToxicAlgae #MarineLife #WaterIsLife #ClimateChange #ClimateDiaryMaine
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I had a bad feeling that this summer would be the last time I would have fried clams...
Dead clams, worms reported amid #CascoBay #AlgalBloom
Story by Griffin Stockford, 9/9/2026
"Dead and dying clams and worms, brown water, and a strong odor of decay have been reported along parts of the Harpswell coast as the Maine Department of Marine Resources monitors a widespread algal bloom in Casco Bay.
"Clam harvesters in #HarpswellME began reporting the unusual conditions, prompting the town's harbormaster to ask coastal residents and harvesters to document what they see and provide photographs, descriptions, and exact locations.
"The Maine Department of Marine Resources has also confirmed it is monitoring a bloom of the commonly occurring phytoplankton #KareniaMikimotoi.
"The bloom has been observed from Portland Harbor to Middle Bay, with additional reports from waters in New Hampshire and Massachusetts, according to DMR. Phytoplankton counts in Portland reached 2 million cells per liter, according to officials.
"DMR staff and members of the public have reported brown discoloration of the water and an accompanying odor.
"Early reports indicate clam deaths in Middle Bay and #MaquoitBay may be related to the bloom, according to DMR.
"The agency said Karenia mikimotoi is not a threat to human health, unlike some other harmful algal blooms that can produce toxins associated with shellfish poisoning. However, the phytoplankton can have harmful effects on marine organisms.
"The species can produce compounds that potentially affect fish and shellfish. #FishKills and other marine mortality events have been reported during blooms of Karenia mikimotoi in locations including #HongKong, #Australia, #Ireland, #Japan, #Korea and #Alaska."
Read more:
https://www.msn.com/en-us/news/other/dead-clams-worms-reported-amid-casco-bay-algal-bloom/ar-AA2bSmQt#Maine #MaineNews #CascoBay #ToxicAlgae #MarineLife #WaterIsLife #ClimateChange #ClimateDiaryMaine
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I had a bad feeling that this summer would be the last time I would have fried clams...
Dead clams, worms reported amid #CascoBay #AlgalBloom
Story by Griffin Stockford, 9/9/2026
"Dead and dying clams and worms, brown water, and a strong odor of decay have been reported along parts of the Harpswell coast as the Maine Department of Marine Resources monitors a widespread algal bloom in Casco Bay.
"Clam harvesters in #HarpswellME began reporting the unusual conditions, prompting the town's harbormaster to ask coastal residents and harvesters to document what they see and provide photographs, descriptions, and exact locations.
"The Maine Department of Marine Resources has also confirmed it is monitoring a bloom of the commonly occurring phytoplankton #KareniaMikimotoi.
"The bloom has been observed from Portland Harbor to Middle Bay, with additional reports from waters in New Hampshire and Massachusetts, according to DMR. Phytoplankton counts in Portland reached 2 million cells per liter, according to officials.
"DMR staff and members of the public have reported brown discoloration of the water and an accompanying odor.
"Early reports indicate clam deaths in Middle Bay and #MaquoitBay may be related to the bloom, according to DMR.
"The agency said Karenia mikimotoi is not a threat to human health, unlike some other harmful algal blooms that can produce toxins associated with shellfish poisoning. However, the phytoplankton can have harmful effects on marine organisms.
"The species can produce compounds that potentially affect fish and shellfish. #FishKills and other marine mortality events have been reported during blooms of Karenia mikimotoi in locations including #HongKong, #Australia, #Ireland, #Japan, #Korea and #Alaska."
Read more:
https://www.msn.com/en-us/news/other/dead-clams-worms-reported-amid-casco-bay-algal-bloom/ar-AA2bSmQt#Maine #MaineNews #CascoBay #ToxicAlgae #MarineLife #WaterIsLife #ClimateChange #ClimateDiaryMaine
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@anne_twain FFS! Nuclear plant discharges of heated water can also increase #HABs! Very bad!
" 'It is possible that activities associated with the working [desalination] plant, such as brine discharge and entrainment in the intake structure, will change the ecology of the plankton in the region and may promote blooms of harmful/toxic algal species which have been identified as components of the plankton community off Port Stanvac. Further monitoring is required before the impact of the Adelaide desalination plant on the plankton community off Port Stanvac can be adequately assessed.' "
#DesalinizationPlants #HABs #AlgalBloom #KareniaMikimotoi #ToxicAlgae
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Atlantic coast and Hampton/Seabrook Harbor shellfishing closed due to red tide
New Hampshire Union Leader
May 21, 2025Officials from the New Hampshire Department of Environmental Services and the New Hampshire Fish and Game Department, in coordination with the shellfish industry, have closed New Hampshire's Atlantic coastal waters
#AlgalBloom #HABs #ToxicAlgae
#Climate #OceanTemperature
#ClimateCatastrophe -
Why the #GulfOfMaine Surface Ocean Waters are Warming Faster than Elsewhere
Posted on July 23, 2024Written by Rob Moir, Ph.D. No Comments
"None of us are strangers to the reports of the Gulf of Maine heating 97% faster than the world’s oceans. However, the actual reasons for this can be lost in the constant headlines about global warming and rising greenhouse gases. To explain this extraordinary phenomenon, let’s look closely at four factors: surface seawater temperatures, heat severity, air temperature, and rainfall, monthly for five years."
#WarmingOceans #ClimateCatastrophe #Climate #Maine #NewEngland #AlgalBloom #HABs #ToxicAlgae
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So, the waters off the Maine coast have been warming up (it was very warm when I last waded in the waters in May). Seems
Karenia mikimotoi has appeared here as well. I expect to see it return with warming waters... Also, this article claims it's less toxic that Red Tide (a cousin) -- but from what I just read in the ABC News article, I would disagree with that! @anne_twain @ToodenFrom WHOI:
"Karenia mikimotoi
- Globally distributed, can cause mass die-offs of shellfish, crustaceans, echinoderms and fish
- Karenia mikimotoi produces several toxic compounds, blooms can also lead to anoxic conditions
- First bloom in Maine occurred in 2017, with a second bloom in 2019
- Karenia mikimotoi is also found in Massachusetts waters"What is Karenia mikimotoi?
"In recent years, the genus Karenia has made the news in the United States as a result of the massive #RedTides caused by #KareniaBrevis [That's the one I know about]. These blooms have caused widespread fish and wildlife mortalities and impacted public health in Florida leading to significantly disrupted tourism and fisheries industries which have cost local economies millions of dollars in damages on an almost annual basis.
"Compared to this notorious HAB species, its sister species, Karenia mikimotoi, is less toxic [!!! Ummmm....] but more globally widespread with blooms reported in Ireland, Norway, India, Japan, Korea Australia, South Africa, Alaska, Texas, and the east coast of the U.S. The blooms of this species can stretch many kilometers, persist for multiple months, and reach concentrations of several million algal cells per liter.
"There have not been confirmed reports of direct impacts to human health by #KareniaMikimotoi, but blooms of this species can cause large-scale mortality events of marine fauna such as shellfish, echinoderms, crustaceans, and fish. Karenia mikimotoi has been shown to produce several toxic compounds as well as reactive oxygen species, but toxicity is highly variable by strain and the factors contributing to mortality events are still not entirely understood. Although overall concentrations of toxins in K. mikimotoi appear to be relatively low, there is evidence that their effect may be enhanced when the cells come into direct contact with fish gills. Anoxic conditions can also occur when K. mikimotoi cells die in large numbers and subsequent breakdown by bacteria deplete oxygen in the surrounding waters. These anoxic events have also contributed to die-offs."
What is the history of Karenia in the Northeast?
"Karenia mikimotoi was first isolated from a coastal lagoon near Woods Hole, MA in 1957 and classified at that time as Gyrodinium aureolum. Since this time, large scale blooms of K. mikimotoi appear to be an emerging problem in New England, with the first occurrence in Maine reported in August, 2017. This bloom was concentrated in the Fore River, Portland Harbor, and parts of the Harpswell coastal waters, and coincided with a die-off of softshell clams in Brunswick, ME. This mortality event cost fishermen $250,000, but a direct causal link between the bloom and shellfish mortality was not established. In August 2019 another bloom occurred in Casco Bay, with no mortalities recorded. Karenia mikimotoi is periodically found in Massachusetts waters, usually in the summer and early fall."
https://northeasthab.whoi.edu/habs/karenia-mikimotoi/
#AlgalBloom #HABs #ToxicAlgae
#Climate #OceanTemperature
#Extinction #ClimateCatastrophe
#ELE #ExtinctionLevelEvent -
"Many people living in or near impacted areas told the ABC they felt they had been left in the dark by authorities.
"While state government bodies including SA Health, the Department of Primary Industries and Regions, South Australia (PIRSA) and the EPA have issued information on their websites and through the media, a lack of information in the days and weeks after the bloom prompted a movement of citizen scientists to collect their own samples and share their findings online."
#Australia #algalBloom #ToxicAlgae #OceansAreLife
#Climate #OceanTemperature
#Extinction #ClimateCatastrophe
#ELE #ExtinctionLevelEvent #KareniaMikimotoi -
HOLY CRAP! This is very bad. I've never heard of #KareniaMikimotoi, but I'm going to look into it. This is something out of a dystopian nightmare! @anne_twain @Tooden
#Australia #algalBloom #ToxicAlgae #Climate #OceanTemperature #Extinction #ClimateCatastrophe #ELE #ExtinctionLevelEvent
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I found this from a few days ago... @anne_twain @Tooden
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
phys.org/news/2025-06-underwater-bushfire-south-australia-marine.html
#Australia #algalBloom #ToxicAlgae #Climate #OceanTemperature
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#GreatLake In #NorthAmerica Turns A Green Due To Toxic #Algae
#Landsat9 snapped images of #algalbloom in #LakeErie on August 13, revealing it covered approximately 830km (320 square miles) of water within its western basin, according to #NASA #EarthObservatory. It continued to grow to this season’s likely largest extent of 1,700 square km (660 square miles) on August 22. Lake Erie regularly experiences algal blooms, primarily because of nutrient runoff from #MaumeeRiver.
https://www.iflscience.com/great-lake-in-north-america-turns-a-lively-green-due-to-toxic-algae-takeover-75902