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The LEO Network is a worldwide network of observers and experts that share their observations of environmental change.
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Thousands of farmed salmon perish in massive die off near Tofino
A harmful plankton bloom and poor water conditions caused large mortalities at three Cermaq salmon farms in northern Clayoquot Sound near Tofino, with up to 185,000 fish lost at one site. DFO says disease was ruled out; critics warn the die-off could affect wild salmon and the marine environment.
Tofino, British Columbia, Canada
CHEK

Blue-green algae health alert issued in Loch Moy near Inverness
Authorities have detected blue-green algae in Loch Moy, south of Inverness, and are urging the public and pet owners to avoid contact with the water. Warning signs are being posted as agencies investigate potential health risks.
Loch Moy, Highland, Scotland, United Kingdom
Inverness Courier

State issues alert for toxic shellfish found in Kachemak Bay
Alaska health officials issued an alert after wild shellfish from Kachemak Bay’s inner bay tested above regulatory limits for paralytic shellfish poisoning toxins. Residents are warned not to harvest or eat untested wild shellfish; monitoring and test results are being posted by the Alaska Harmful Algal Bloom Network.
Homer, Alaska, United States
Homer News

Blue-green algae blooms intensify as heatwave continues across Finland
A persistent heatwave in Finland is fueling dense blue-green algae blooms in the Baltic Sea’s Gulf of Finland and Archipelago Sea, with freshwater sightings remaining stable.
Various coastal regions, Finland
Yle News

Algal Bloom in the Archipelago – Municipality Urges Avoiding Swimming
Sustained high temperatures have led to algal blooms at several sites in the Haparanda Archipelago, and local authorities are advising people to avoid bathing.
Haparanda, Norrbotten, Sweden
Norrländska Socialdemokraten (NSD)

Blue-green algae warning issued for Lower Thetis Lake
A blue-green algae bloom detected at Lower Thetis Lake’s main beach prompted a Capital Regional District health advisory on July 20, 2025, warning humans and pets to avoid the water.
Lower Thetis Lake, Thetis Lake Regional Park, British Columbia, Canada
CHEK

Many Questions About the Algal Bloom: “What Does This Mean for Me?”
An algal bloom was detected at the municipal Lulsundet beach in Luleå on July 15, prompting warning signs and questions from residents about potential health and safety risks.
Luleå, Norrbotten County, Sweden
Norrbottens-Kuriren

NCCOS Assists Response to Multispecies Mortality Event in St. George Island, Alaska
A rapid, multi-agency response is underway on St. George Island, Alaska, to investigate a multispecies mortality event linked to a harmful algal bloom, with concerns that paralytic shellfish poison (PSP) toxins may be affecting local wildlife and human health.
Saint George, Alaska, United States
NCCOS - National Centers for Coastal Ocean Science

Lakes Have Curious Color
Observers from a small plane reported unusual green color in lakes and ponds, raising concerns about lake health and the potential for invasive species.
Chefornak, Alaska, United States
Alyssa Leary, Joey Billy, Thomas Farrugia, Brian Lefferts, Edda Mutter

KBNERR warns of potential harmful algal bloom in Kachemak Bay
The Kachemak Bay National Estuarine Research Reserve detected Pseudo-nitzschia at bloom levels in Kachemak Bay starting July 4. This diatom can produce the toxin domoic acid, associated with amnesic shellfish poisoning, though toxin production is not yet confirmed. Observed bird deaths and marine mammal strandings have spurred collection of mussel samples for lab testing.
Homer, Kenai Peninsula Borough, Alaska, United States
Peninsula Clarion

Algal Bloom in the North: Up to 1 Million Dead Fish
An algal bloom in Northern Norway dominated by Chrysochromulina and Phaeocystis has caused massive fish die-offs in recent weeks, with up to one million farmed fish reported dead around Astafjorden.
Ibestad, Troms, Norway
NRK Troms og Finnmark

Non-toxic red tide blooming in Saanich Inlet
A bloom of non-toxic Noctiluca algae is lining Saanich Inlet’s shoreline; safe for swimmers and shellfish consumption so far. Scientists say the bloom is not producing toxins yet, but could as the water gets warmer. “This one is a bit early!” said Galbraith.
Saanich Inlet, British Columbia, Canada
CHEK

'Feral, almost demonic': Surge in poisoned sea lions threatens SoCal beachgoers, burdens rescuers
Domoic acid poisoning is stranding marine mammals as warnings are issued to beachgoers of the threat posed by animals that are transformed by their illness.
Oxnard, California, United States
Los Angeles Times

Blue-green algae bloom found in Yellowknife not toxic, government says
The N.W.T.'s Department of Environment and Climate Change and the Canadian Coast Guard tested samples from various locations in the area. The results showed no toxins present.
Yellowknife, Northwest Territories, Canada
CBC

Toxin that causes paralytic shellfish poisoning blamed for Alaska seal deaths
A die-off last year at St. Paul Island, the first compelling case of fatal saxitoxin poisoning in marine mammals, comes as more harmful algae is found farther north
Saint Paul, Alaska, United States
Anchorage Daily News

Harmful Algal Blooms Linked to Deaths of Northern Fur Seals in the Southeast Bering Sea
Testing confirmed widespread exposure of saxitoxin in marine mammals and other wildlife. In the study, researchers collected and analyzed data from 10 dead northern fur seals and hundreds of dead, mostly benthic, fish that washed ashore on a popular beachcombing beach on St. Paul Island in August 2024.
Saint Paul, Alaska, United States
NOAA

Algae bloom warnings issued along Lake Winnipesaukee
New Hampshire officials issued two warnings of potentially dangerous algae blooms along parts of Lake Winnipesaukee, the state’s largest lake. The New Hampshire Department of Environmental Services said on Thursday it detected high...
Tuftonboro, New Hampshire, United States
Concord Monitor

Meech Lake beach in Gatineau Park closed due to blue-green algae bloom
Meech Lake beach is closed due to a potentially harmful blue-green algae bloom, alongside a fire ban affecting Gatineau Park areas.
Gatineau, Quebec, Canada
Ottawa

Noctiluca bloom in bay
An unusually large Noctiluca bloom in Kasaan Bay. Noctiluca scintillans is a non-toxic algae bloom, generally considered harmless to humans.
Kasaan, Alaska, United States
Thomas Farrugia, Bruce Wright, Carol Fletcher, Dean Stockwell, Sarah Yoder, Gemini

Harmful algae bloom detected in Bering Strait waters
High concentrations of harmful algae called Alexandrium catenella have been detected in the Bering Strait waters near St. Lawrence Island, Wales, and Little Diomede, posing a potential danger to human health and urging caution when consuming certain seafood.
Bering Straits, Alaska
The Nome Nugget

There was a blue-green algae bloom in Yellowknife Bay. Here's what you should know about it
A blue-green algae bloom in Yellowknife Bay sparked worry for people's dogs. Here's what an aquatic quality scientist and a veterinarian have to say about it.
Yellowknife, Northwest Territories, Canada
CBC

High levels of PSP in Blue Mussels
Blue mussels collected on 6/15/2023, were way above the FDA limit for safe consumption of 80 μg/100g.
Sand Point, Alaska, United States

Dangerous PSP toxin levels found in some Southwest Alaska clams, mussels
High levels of PSP toxins have been found in razor clams in Chignik Lagoon and blue mussels in Sand Point, Alaska, making them unsafe to eat and potentially causing paralytic shellfish poisoning, with no known cure.
Chignik, Alaska, United States
Alaska Public Media

Concerned about algae in Cheney Lake
Over the last several weeks the algae bloom has ranged from significant covering the surface of the lake in many places to today seeing patches of the bloom here and there on the surface. It can also be observed below the surface near the shoreline.
Anchorage, Alaska, United States

Waiheke beach-goers urged to steer clear from toxic water
Testing has revealed black algae washing on Waiheke shores is toxic. “Currently the algal bloom on some Waiheke beaches could lead to skin or eye irritation if you are in contact with the water,” said Dr David Sinclair, Te Whatu Ora’s Northern Region medical officer of health.
Auckland, Auckland, New Zealand
NZ Herald

Dead fish and bad air from algae bloom
There are miles of dead fish washing up on the beach. That's not all. Just breathing the air can be harmful.
Fort Myers, Florida, United States

Health alert issued following red tide in multiple areas of coastal Collier County
A red tide bloom was found in multiple areas of coastal Collier County. Individuals with chronic respiratory problems should be cautious and stay away from this location, as red tide can affect breathing. Residents near the beaches are encouraged to close windows and run the air conditioners.
Fort Myers, Florida, United States
NBC2 News

Hawke’s Bay red sea’s final act was to kill sea creatures
Test results show the bloom was almost certainly to blame for mass deaths of kina as well as crayfish, starfish and sea cucumber which washed ashore at Hardinge Rd, including Sandy Beach, and on a small part of Westshore Beach eight days ago.
Hawke's Bay, New Zealand
NZ Herald

Saxitoxin detected in regional clam
By Diana Haecker
Savoonga, Alaska, United States
The Nome Nugget

Researchers find even higher algal levels in regional waters
After alerting the region to very high levels of harmful algal blooms west of Kotzebue and Gambell two weeks ago, scientist onboard the research vessel Norseman II have found even higher numbers of Alexandrium catenella algae cells near Wales, Diomede and Shishmaref.
Wales, Alaska, United States
The Nome Nugget

Toxic algae bloom suspected in dog deaths at Cumberland recreation area
State scientists are testing the water for a toxic blue-green algae bloom at Twin Brook after tests showed 2 dogs had algae-related toxicity after swimming there Aug. 21.
Cumberland, Maine, United States
Press Herald

Why ‘tens of thousands’ of fish are dying in the Bay Area
Local officials and scientists have yet to nail down how many fish have died, but the reports have been coming in non-stop since Friday.
San Francisco, California, United States
SFGATE

Researchers find high concentrations of harmful algae in regional waters
Researchers stepping off the research vessel Norseman II in Nome last weekend, brought significant news of having found very high concentrations of a phytoplankton called Alexandrium catenella in regional waters. Alexandrium is an algae that can produce saxitoxins, which can cause dangerous paralytic shellfish poisoning in people. The scientists issued an advisory, notifying Norton Sound Health Corporation, UAF Sea Grant and the Alaska Division of Public Health.
Nome, Alaska, United States

Algae bloom continuing to affect North Pond in Rome, Smithfield
The algae on North Pond began blooming about two weeks ago during a patch of hot weather, making the pond resemble a bowl of pea soup, according to Danielle Wain, lake science director for 7 Lakes Alliance, which works to preserve land and water in the Belgrade Lakes region.
Norridgewock, Maine, United States
Kennebec Journal and Morning Sentinel

Harmful algae colours the Oslo fjord green
Scientists now say that the harmful alga will survive the winter and that it will probably turn green in the Oslo fjord next year as well.
Oslofjord, Oslo, Norway
NRK
Lea Girolami Bråthen, Dag Aasdalen, Maren Nan Myrseth

Phytoplankton blooms hint at changing Arctic waters
Recent research has found that coccolithophore blooms are occupying increasingly more space in the Barents Sea. Between 1998 and 2016, coccolithophore summer blooms have expanded poleward and their surface area in the Barents Sea has doubled.
Nunatsiaq News

At Least 600 Tons Of Dead Fish Have Washed Up Along Tampa Bay's Shore
The hordes of fish were killed by a red tide, a large "bloom" of toxic algae that appears on Florida's Gulf Coast about once a year. Experts say the bloom shouldn't be happening right now.
Tampa, Florida, United States
NPR.org

Paralytic Shellfish Toxin Advisory
The Southeast Alaska Tribal Ocean Research program found that all shellfish species in Settler's Cove and Seaport Beach in Ketchikan and Starrigavan North beach in Sitka are affected by high levels of Paralytic Shellfish Toxin, posing the risk of Paralytic Shellfish Poisoning for consumers.
Ketchikan, Alaska, United States
Southeast Tribal Ocean Research

Blue-green Algae Makes an Early Appearance
Anyone visiting lakes or rivers in the region is being cautioned to look out for blue-green algae after the Blue Lake Rancheria confirmed levels of...
Blue Lake, California, United States
North Coast Journal

Red bloom in bay isn’t harmful
However, if ingested by oysters and other shellfish, the sudden burst of a ciliate form of zooplankton — or animal plankton — called Mesodinium rubrum could turn their meat pink.
Homer, Alaska, United States
Homer News

Turkey struck by ‘sea snot’ because of global heating
Increasing blanket of mucus-like substance in water threatens coral and fishing industry
Sea of Marmara
the Guardian

Red tide linked to royal tern deaths on causeway
On Feb. 16, the Sanibel-Captiva Conservation Foundation reported that many residents and visitors have called SCCF, the city of Sanibel and Clinic for the Rehabilitation of Wildlife with concerns about royal terns over the past few weeks and the sight of their carcasses on the Sanibel Causeway bridges. Test results on deceased royal terns confirmed on Feb. 15 that they had high levels of brevetoxins, the neurotoxin associated with red tide.
Sanibel, Florida, United States
captivasanibel.com/

Goldfish invasion of Hamilton Harbour
Pet fish dumped in local waterways have become the scourge of Hamilton’s marshes and harbour
Hamilton Harbour, Ontario, Canada
Macleans.ca

Marine species wash up on beaches as red tide hits West Coast
A harmful algal bloom, better known as a red tide, has been building up at Elands Bay on the West Coast, about 220km north of Cape Town.
Cape Town, Western Cape, South Africa
African News Agency

Pink water at Sentosa Cove caused by heavy rainfall
Investigations into the fish die-off and pinkish-purple colour of the Sentosa South Cove waterway earlier this month have found that they were caused by the heavy and persistent rainfall in recent weeks that altered water conditions.. Read more at straitstimes.com.
Sentosa
The Straits Times

Harmful algal blooms found in Lake Placid and Lake George
The discoveries on Mirror Lake and Lake George spark concerns about the number of nutrients entering the lakes.
Lake George, New York, United States
NCPR

Health advisory issued for CJ Strike Reservoir due to harmful algal bloom
The Central District Health Department as well as the Southwest District Health and Idaho Department of Environmental Quality says recent water samples indicate there were concentrations of toxin-producing cyanobacteria in the reservoir.
Mountain Home, Idaho, United States

Waterfowl Disappearance and Other Lake Ecosystem Changes
Residents note significant changes in the Christiansen Lake ecosystem since 2019. This includes fewer nesting birds, fish, and mammals around the lake, while the leech population has increased along with the occurrence of algal blooms.
Talkeetna, Alaska, United States

Miami-Dade fireboats hit the water to help with major fish kill in South Florida waters
Another day of dead marine life surfacing in Biscayne Bay as the swath of suffocated fish appears to be spreading.
Miami, Florida, United States
WPLG

As red algal blooms surface on Dal Lake, LAWDA to use aerators, motorboats
Locals Saturday expressed resentment over the presence of a red algal bloom on Dal surface that has completely changed the lake’s colour into yellowish.
Srinagar, Kashmir, India
Rising Kashmir

Phytoplankton Surge in Arctic Waters
The image shows a bloom of phytoplankton in the Barents Sea, north of Scandinavia and Russia.The floating plant-like organisms are showing up in higher concentrations across the Arctic Ocean.
Barents Sea
NASA Earth Observatory

Seaweed invasion hurting fishermen's livelihoods
Seaweed native to the northwest Pacific is invading the rich marine waters of the Strait of Gibraltar and the brown algae is clogging up fishermen's nets and endangering their way of life.
Strait of Gibraltar
Al Jazeera

Algae bloom chokes Achencoil river stretch
Eutrophication — excess nutrients in water — and environmental changes were identified as the cause of the harmful algal blooms in the fresh aquatic system of the Achencoil.
Pathanāmthitta, Kerala, India
The Hindu

Toxic algal blooms in Rotorua lakes could cause significant health effects, authorities warn
Don't swim in these three lakes if you notice any of these features, authorities say.
Rotorua, Bay of Plenty Region, New Zealand
Stuff

Toxic algae also threatens Ohio’s inland lakes, waterways
"Lake Erie receives a lot of attention for its problems with HABS, but Ohio’s inland lakes and waterways share the increasingly dangerous problem and its impacts on health as a source of drinking water and recreation, and the potential loss of millions of dollars in tourism and lakeside property values."
Ohio, United States
cleveland

B.C. First Nations village evacuated after blue-green algae found in water source
About 60 people from the Dzawada̱ʼenux̱w First Nation have been evacuated to Alert Bay after blue-green algae was found in their well water.
Kingcome Village, British Columbia, Canada
CBC

Cyanobacteria in a deep well contaminates community water source
In 2020, contamination of the community water well by cyanobacteria caused the community to evacuate for 26 days. How the well was contaminated is unknown.
Kingcome Inlet

For the first time, scientists have found a dangerous toxin from algae in the Bering Strait and Chukchi Sea
Clams collected in late August had concentrations of saxitoxin considered dangerous for human consumption. The samples were collected in August about 70 miles north of St. Lawrence Island and about 50 miles north of Cape Lisburne, much further north than previously documented.
Cape Lisburne
ArcticToday

Tofino fish farms reporting mass die-offs due to harmful algae
Blooms are often associated with low dissolved oxygen events and warm ocean water temperatures and weather changes – all of which we are, or have been, experiencing," said Kiemele. Farm owner Cermaq says it has deployed fish protection countermeasures that have already caused conditions to improve.
Herbert Inlet, British Columbia, Canada
CTV News

An invasive algae is threatening the Strait of Gibraltar’s fishing grounds
Returning to port with tons of algae in their trammel nets, with hardly any fish, has become a common drama for the men fishing in Spain's Southern coast. The same “catastrophe” is also threatening the marine biodiversity of the area and piling up on beaches.
Spanish Mediterranean coast

Blue-green algae advisory in effect for Prior Lake on Vancouver Island
A blue-green algae advisory is in effect for Prior Lake in Thetis Lake Regional Park after the toxic blooms were spotted in the water.
Prior Lake, British Columbia, Canada

Latest Research From Chukchi Sea Finds More Warm Water, Harmful Algal Blooms
During their three weeks aboard the Healy, Bob Pickart and his team observed some Harmful Algal Blooms (HABs). One was near Point Hope.
Near Point Hope, Alaska
KNOM Radio Mission

Short-tailed Shearwaters (Ardenna tenuirostris) Found on Chukchi Sea Beach
More than 50 birds and a seal were found along the shoreline.
Kivalina, Alaska, United States
Kathy Kuletz, Janet Mitchell, Gay Sheffield, Hillary Burgess

Algal Bloom, Possibly Noctiluca, in Kizhuyak Bay
Ribbons of discolored water observed over Kizhuyak Bay that are likely related to a *Noctilica* bloom.
Chiniak, Alaska, United States
Brian Berube, Andie Wall , Kayla Schommer

CRD warns visitors, dog owners of toxic algae in Beaver Lake
Visitors advised not to swim in lake and keep dogs on leash
Elk Lake, British Columbia, Canada
Victoria News

State reopens shellfish harvest
The state's Department of Environmental Services and Fish and Game announced effective Friday, Aug. 9 the ban on harvest of shellfish due to “red tide” is lifted for all species of shellfish except surf clams.The harvest closure went into effect May 9 for the Atlantic Ocean and Hampton/Seabrook Harbor in response to elevated levels of paralytic shellfish poisoning, or PSP, commonly known as red tide, detected in blue mussels collected from Hampton/Seabrook
Hampton, New Hampshire, United States
seacoastonline.com

Algae Bloom Fouls N.J.’s Largest Lake, Indicating Broader Crisis
Lake Hopatcong, normally buzzing with swimmers and water skiers, is filled with cyanobacteria in quantities never before recorded.
Lake Hopatcong, New Jersey, United States
New York Times

Toxic Algae Advisory for Klamath River
Caution: Blue Green Algae has been detected in the Lower Klamath River and contact with water is not advised. Samples in the South Slough located in the Estuary of the River and near the confluence of Tulley Creek and the Klamath River recently detected low levels of toxic algae.
Klamath, California, United States
Yurok Tribe Environmental Department

First 2019 paralytic shellfish poisoning case reported in Alaska
The Department of Health and Social Services reports a person experienced PSP symptoms after eating a clam harvested near Perryville on the Alaska Peninsula.
Perryville, Alaska, United States
Anchorage Daily News

Satellite photos show blue-green algae blooming in blistering heat
Researcher Sirpa Lehtinen from the Finnish Environment Institute (Syke) said that cyanobacteria exist in seawater all year round, but intense heat causes them to multiply quickly.
Turku, Southwest Finland, Finland
Yle Uutiset

Lake Is Full of Algae This Summer
"I am worried that unless we do something, the algae will kill the lake, or at least our enjoyment of it."
Anchorage, Alaska, United States
Shelley Griffith, Mike Brubaker, Dean Stockwell, Gillian Brubaker , Gino Graziano

Blue-green algae bloom in coastal pond
Cape May Point, New Jersey, United States

Algal Bloom
Discolored marine waters near Haines may be reflective of the extremely high level of algae in southeast waters this month.
Haines, Alaska, United States
Kyle Rosendale, Luke Williams, Bruce Wright, Rose Masui, Chris Whitehead, Dean Stockwell

Sand Lance (Ammodytes hexapterus) Die-Off
Hundreds of dead sand lance (*Ammodytes hexapterus*) found along the shores of White Sands Beach.
Kodiak, Alaska, United States
Bruce Wright, Jayde Ferguson, Stephanie Mason, Ted Meyers

Sargassum Seaweed (S. fluitans and S. natans) beaching in Key West
Little to no apparent management posed possible ecological and environmental health concerns.
Key West, Florida, United States

Unidentified Algal Bloom in Coastal Water
An unidentified algal bloom, resembling large clumps of grease or sawdust, stretched from Kingsmill Point all the way up to Pybus Bay. Didn't see any impact to fish or wildlife in the area.
Juneau, Alaska, United States
Amy Holman, Kayla Schommer, Dean Stockwell, Jeanette Gann, Erica Lujan, Rose Masui, Chris Whitehead

13-year-old girl bit by sea lion in ‘very rare’ attack at Pismo Beach
A girl from Paso Robles, California, was bit by a sea lion in Pismo Beach on Friday near the pier. The animal that attacked likely had domoic acid poisoning, and will be treated at the Marine Mammal Center.
Pismo Beach, California, United States
The San Luis Obispo Tribune

'Potentially lethal' toxins found in Juneau shellfish
A group that monitors shellfish toxin levels is warning Juneau residents not to consume shellfish from locations in the Auke Bay area.
Juneau, Alaska, United States
KTOO

Seaweed invading Essequibo, Demerara, Berbice rivers
Aerial shots of what appeared to be remnants of an oil spill in the Essequibo River has turned out to be huge beds of sargassum seaweed which is now a
Parika, Essequibo Islands-West Demerara, Guyana
Stabroek News

Another bad year for sargassum seaweed forecast for Quintana Roo
Large quantities of sargassum are likely to wash up on the beaches of Mexico’s Caribbean coast in 2019, according to a researcher.
Atlantic Ocean
Mexico News Daily

Red tide has contributed to the deaths of nearly 190 Florida manatees, FWC says
Red tide has contributed to or is suspected in the deaths of nearly 190 manatees so far this year.
Florida, United States
WFTS

Officials warn of potentially lethal levels of biotoxin in Bellingham Bay mussels
The Whatcom County Health Department is warning residents that PSP a common biotoxin is now at potentially lethal levels in mussels harvested in Bellingham Bay.
Bellingham, Washington, United States
Longview Daily News

Record levels of toxic blue-green algae invade Lake Agawam in Southampton
Toxic blue-green algae were found in record levels in Southampton’s Lake Agawam earlier this month, capping a summer during which a dozen South Fork lakes and ponds were closed due to high levels of the harmful bacteria.
Southampton, New York, United States
Newsday

Mass die-off of clams fouls Revere Beach
The Division of Marine Fisheries is analyzing the clams and expects to have preliminary results in the coming days that might point to a cause.
Revere, Massachusetts, United States
The Boston Globe

Sheriff: toxic algae suspected in dog’s death, 6 other dogs falling ill
The Martin County Sheriff’s Office believes a toxic algae bloom is to blame for killing one dog and making six others sick.
Stuart, Florida, United States
WSVN

33.48 tons of dead fish collected in Pinellas County as red tide bloom lingers
Red tide is officially impacting Pinellas County. Crews have picked up a total of 33.48 tons of dead fish and hauled them off to the county dump.
Madeira Beach, Florida, United States
WFTS

Seaweed Takes Over Popular Beach at the Grand Turk Cruise Center
Sargassum Seaweed has invaded the beach at the Grand Turk cruise center which is popular with cruise ship passengers.
Cockburn Town, Turks and Caicos Islands
Cruise Hive

Tons Of Dead Fish Washing Ashore On Florida Beaches
Southwest Florida is reeling from a toxic algae bloom called red tide. Hundreds of tons of dead fish are washing up on beaches.
Bradenton, Florida, United States
NPR.org

The seaweed deluge hitting Caribbean shores
Sargassum, a type of seaweed, is creating problems as it washes up across the Caribbean.
Caribbean Shores
BBC News

Sargassum on the south coast
Newport, Curacao
Curaçao Chronicle

Shellfish poisoning of dogs confirmed
Tests reveal concentrations of toxins in the shellfish the dogs ate was up to 27 times the safe limit.
Norwich, England, United Kingdom
BBC News

Blue-green Algae in Fraser Lake
There is unusual abundances of blue-green algae on West end of Fraser Lake.
Fraser Lake, BC, Canada

Scientists may have solved 2011’s mysterious marine die-off along the Pacific coast
Scientists first caught on to the strange event when they found thousands of purple sea urchins and other organisms dead in their laboratory tanks.
Northern Pacific Coast
Washington Post

In Nicoya Gulf, the deadly red tide lingers
Since early February, the gulf, and beaches and islands surrounding it, have been in the throes of one of the worst blooms of red tide in recent years.
Paquera, Puntarenas, Costa Rica
The Tico Times | Costa Rica News | Travel | Real Estate

Cyanobacteria bloom under lake ice
Cyanobacteria blooms usually occur in summer.
Smithers, British Columbia, Canada

North Saskatchewan River Turns Blue
The river, which starts at the Saskatchewan Glacier in the Columbia Icefields and flows through to central Saskatchewan, is usually murky brown by the time it reaches Edmonton in summer. In recent weeks, however, the water has taken on the hues of Alberta's glacial lakes, thanks to dry, hot weather combined with maintenance at a major dam.
North Saskatchewan River, Alberta, Canada

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