LEO Network

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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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Observations

Benn asks fishermen to report jellyfish: “Terrible to see the fish suffer!”
A salmon farm manager in Finnmark urges fishermen to report pearl necklace siphonophore (jellyfish) sightings after blooms caused skin and eye injuries and breathing problems in farmed salmon near Øksfjord/Hammerfest.
Øksfjord, Troms og Finnmark, Norway
iFinnmark

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

Mowi blames climate change for latest salmon die-offs on Newfoundland's south coast
Mowi Canada East reports 166,262 farmed salmon died at two sites near Chaleur Bay on Newfoundland’s south coast, blaming repeated sea lice infestations intensified by warm surface waters, low freshwater runoff, and calm winds. The incident follows earlier 2025 mass mortalities linked to a thermocline inversion and warm, low-oxygen conditions.
Chaleur Bay, Newfoundland and Labrador, Canada
CBC News

Seven salmon confirmed as farmed escapees
Icelandic authorities report that 7 of 22 salmon submitted for testing were confirmed as farmed escapees, caught in several North/West Iceland rivers. Tracing suggests six fish share a common origin in Dýrafjörður; investigations continue and anglers are asked to turn in suspect fish whole for analysis.
Búðardalur, Western Region, Iceland
mbl.is

800 farmed salmon escape from Cermaq facility: 'Shocking to us', says director
About 800 farmed salmon escaped from Cermaq’s Rypefjord facility near Hammerfest due to a dislodged transfer pipe, prompting concerns over genetic threats to wild salmon in Repparfjordelva and Altaelva and calls for stronger containment measures.
Hammerfest, Troms og Finnmark, Norway
NRK Troms og Finnmark

Invasive European Green Crab found north of Ketchikan
A small but potentially environmentally threatening crab is expanding its area of influence in Alaska.
Ketchikan, Alaska, United States

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

Marine Heatwave in Norway – Extreme Sea Temperature
Sea surface temperatures off Norway have reached 22–23 °C, at least five degrees above normal, marking a marine heatwave that risks stressing marine life and intensifying extreme weather.
Trøndelag, Norway
NRK

Infectious Salmon Anemia Detected at Fish Farm in Troms
Infectious salmon anemia (ILA) has been confirmed at a SalMar aquaculture facility in Trettevik, Senja municipality in Troms, triggering a 10–20 km restriction zone to prevent disease spread.
Trettevik, Senja, Troms, Norway
NRK Troms og Finnmark

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

87,000 cod escaped from farms - one of the largest escapes in a long time
Approximately 87,000 farmed cod escaped from Gadus Group's aquaculture facility, raising concerns about potential impacts on wild fish populations and prompting investigations into the incident.
Norway
NRK

Aquaculture: Oyster and mussel growers on Prince Edward Island calculating losses from Fiona
James Power doesn’t have a final tally yet on how much post tropical storm Fiona cost Raspberry Point Oysters Ltd., but the damages are likely to be in the ...
Charlottetown, Prince Edward Island, Canada

Moon Jelly Fish Bloom in Howe Sound & Deep Cove
In 2022, an unprecedented bloom of moon jellyfish occurred numbering in the hundreds of thousands.
Vancouver, British Columbia, Canada
David Oswald, Tom Okey, Desirée Crickmay

Only two flamingos sighted on Sidi Boughaba Lake
On a hiking trip, observer sees a lone pair of Flamingos at Sidi Boughaba Lake National Park. This was not expected from a sociable bird species that travel in large flocks.
Kenitra, Gharb-Chrarda-Beni Hssen, Morocco
David Oswald, Chyna Williams, Salma Sayeh

B.C.'s heat wave may be to blame for several cases of shellfish poisoning
Several people have fallen ill with food poisoning after eating shellfish in B.C. in the last 10 days, and health officials are warning that warm ocean waters might be to blame.
Vancouver, British Columbia, Canada
CBC

Intertidal life after significant heat wave
In Malahat Drive in BC, an extraordinary heat wave, combined with low tides during the middle of the day resulted in the die off of possibly billions of intertidal invertebrates along the coast of British Columbia and Washington State.
Malahat Drive

On par with the BP Oil spill: Tons of sediment invade Kalamazoo River after dam drawdown
Sediment that could fill the volume of 112 Olympic-sized pools has been flooding into the Kalamazoo River for over a year. IT's decimating habitats and causing a serious potential for devastating flooding.
Kalamazoo, Michigan, United States
WXMI

Zebra mussels on Marimo moss balls are causing an emergency in WA
Moss balls imported from Ukraine to pet shops in the United States have been found to house the invasive Zebra mussel. Once in bodies of water, this mussel reproduces rapidly and wreaks havoc on ecosystems.
Seattle, Washington, United States
Crosscut

Orca pod returns to the Broughton Archipelago after more than 20 years
The A5 pod has returned to the Broughton Archipelago, their traditional winter hunting ground, with a brand new baby in tow.
Fife Sound, Broughton Archipelago, British Columbia, Canada
Victoria News
Zoe Ducklow, Local Journalism Initiative Reporter

Washed-up Stellar Sea Lion (Eumetopias jubatus) on Front Beach
Female Stellar sea lion found dead on the beach, partially scavenged by eagles. There was no sign of any bullet holes. In addition, there wasn't any other evidence of what happened to the sea lion.
Unalaska, Alaska, United States
Barbara Mahoney, Gay Sheffield, Julieanne Renee Berikoff, Melissa Good

Dead Tomcod (Microgadus proximus) on Beach
Dead tomcod were found on the beach following warm temperatures in Norton Sound, repeating a 2019 mortality event in the same area.
Teller, Alaska, United States

Possible Pacific White-sided Dolphin Sighting (Lagenorhynchus obliquidens)
Unusually active marine mammals seen near Unalaska may actually be Pacific white-sided dolphins.
Unalaska, Alaska, United States
Melissa Good, Julieanne Renee Berikoff, Asia Beder

Salmon Farm Rips Open in Dýrafjörður
A tear was discovered in one of Arctic Fish’s open-sea fish farms in Dýrafjörður in the Westfjords. A notice on the company’s website says the tear was discovered during routine inspection and is located at a depth of about 20 metres (65 feet).
Bolungarvík, Westfjords, Iceland
Iceland Review

Nearly 20,000 non-native salmon escaped after fire at B.C. fish farm
One wild salmon advocate fears the non-native Atlantic salmon could spread sickness and compete for habitat with struggling wild salmon population.
Queen Charlotte Strait, British Columbia
British Columbia

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

Warm water, not sea lice, caused massive salmon die-off
Northern Harvest Sea Farms is busy cleaning pens of dead salmon, and the province's head aquaculture vet says higher-than-average water temperatures are to blame.
Fortune Bay, Newfoundland, Canada
CBC

Large Squid Caught in Chignik Bay
Unidentified squid caught by rod and reel off the beach.
Chignik, Alaska, United States

Declining Snow and Summer Rain in the Alberni Valley
"During my childhood, Mt. Arrowsmith and surrounding peaks tended to have a fair amount of snow cover; it was into the summer months before it totally disappeared."
Port Alberni, British Columbia, Canada

River Otters (Lutra canadensis) in University Lake
River otters (*Lutra canadensis*) observed in a lake that typically is home to beavers.
Anchorage, Alaska, United States

Invasive Asian giant hornets found on Vancouver Island
Asian giant hornets are known to feed on honeybees and other large insects and are capable of destroying a beehive in a short time, according to the province.
Nanaimo, British Columbia, Canada
CTV News

Slender armorhead (Pentaceros wheeleri) caught in purse seine
Juveniles and sub adults live and migrate in open water at shallow to moderate depths. They move to the bottom as adults when they settle around sea mounts in the North Pacific.
Chignik Lake, Alaska, United States
Melissa Good, Tom Okey, Amy Holman, Andrés López, Edgar Smith

Detectan presencia del 'Pez Diablo' en Sinaloa; una amenaza para la pesca y los ecosistemas
They detect the presence of the 'Devil Fish' in Sinaloa; a threat to fishing and ecosystems
Culiacán, Sinaloa, Mexico
News

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

Warm Ocean Temperatures
In July, Norton Sound water surface temperatures reached 68.2 DEG F on 7/10 and 69.3 DEG F on 7/11, which is about 17 degrees above average. The water was warm enough to comfortably swim in.
Nome Alaska
Jason Sebring, Richard L Thoman Jr, Gay Sheffield, Racheal Lee, Anahma Shannon

Sea Lice Plagues Return and Threat to Wild Salmon Increases
Major sea lice epidemics have erupted on Atlantic salmon fish farms on Vancouver Island’s west coast over the last three months, according to industry, Fisheries and Oceans Canada and independent reports.
Clayquot Sound, British Columbia, Canada
The Tyee

Unusual Sighting of an Alaska Pollock (Theragra chalcogramma)
Historically, pollock are not a commonly observed species in Bristol Bay, but sightings are becoming more common.
Port Heiden, Alaska, United States
Jaclyn Christensen, Elizabeth Siddon, Tom Okey

Lots of Female King Crabs (Paralithodes camtschaticus)
Large number of Red King Crabs (*Paralithodes camtschaticus*) found on the beach during an extreme low tide. According to fisheries researchers, crabs move to shallow water to hatch and release eggs.
Juneau, Alaska, United States

Allayuk uguguaq, "Strange Caterpillar," identified as Bedstraw Hawkmoth (Hyles gallii)
Unusually colored caterpillar in area identified as Bedstraw Hawkmoth (*Hyles gallii*)
Oscarville, Alaska, United States

Rare Glass Sponge Reef Smothered By Fish Farm Waste
Underwater camera captured ‘a wasteland, covered in brown sediment.’
Cecil Island Fish Farm, British Columbia, Canada
The Tyee

Sinking Islands and Lost Harvest and Hunger
Climate change is effecting the people of the Solomon Islands in many ways. Sea level rise is a major driver.

Ocean acidity wipes out 10 million scallops near Qualicum Beach
Ten million scallops that have died in the waters near Qualicum Beach due to rising ocean acidity are the latest victims in a series of marine die-offs that have plagued the West Coast for 10 years. . .
Island Scallops Ltd., Vancouver Island, Canada
Times Colonist

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