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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

Dead Sea Otters
No obvious cause of death for this adult and juvenile otter.
McDonald Spit, Alaska, United States
Kris Holderied, Stephen Payton, Barbara Mahoney, Mike Brubaker

Wondering where the fish have gone
With a bleak salmon return this year in Northwest Alaska, a lifelong fisherman reflects on a season marked by empty nets and big questions.
Kotzebue, Alaska, United States
Anchorage Daily News

A summer without mosquitoes
An unusually mosquito-free summer in Anchorage, Alaska, despite wet conditions, has prompted discussions among local observers and experts, with no clear correlation found between weather patterns and mosquito activity. Although the numbers and timing are locally influenced, similar observations were shared from Fairbanks and Chistochina.
Anchorage, Alaska, United States
Daisy Huang, Wilson Justin, Christopher Crews, Derek Sikes, Wilson Justin, Jessie Moan, Richard L Thoman Jr, Gemini , Mike Brubaker

Concern Over Plummeting Ptarmigan Population
This breeding season for ptarmigans has been the fourth worst on record in northern Iceland, due in part to a June snowstorm.
Northern Iceland
Iceland Review

Dead fish in creek near Eagle mine likely killed by cyanide, Yukon officials say
Officials with the Yukon government say dozens of dead fish found earlier this week in a creek near Victoria Gold's Eagle mine were likely killed by a discharge of contaminated water from the mine site.
Mayo, Yukon, Canada
CBC

“Huge disaster”: Historically weak pink salmon runs strain Alaska’s seine fishermen
Skippers in Prince William Sound and Kodiak say this year's pink harvest is one of the worst they’ve ever seen. “I wake up every morning and I try to apply for a different job," one said.
Kodiak, Alaska, United States
Northern Journal

Sea gulls on the beach not moving
Observers report unusual sea gull lethargy and die-offs on area beaches.
Brevig Mission, Alaska, United States
Racheal Lee, Sarah Yoder, January Frost, Lillian Olanna, Gay Sheffield, Kathy Kuletz

Seagull die offs reported in several Chukotka communities
Dead seagulls were found near five coastal villages of the district - Ryrkaipia, Nutepelmena, Lorino, Lavrentiya and Enurmino. The largest number of dead birds were found near the village of Ryrkaipiy in the Egvekinot municipality. Local residents reported that there were several dozen Eastern Siberian gulls on the shore and ice floes.
Chukotka , Russia

First ever subsistence fishery closure at Port Clarence causes hardship at Teller, Brevig
After experiencing an unprecedented closure of subsistence salmon fishing, the Port Clarence district, including Teller and Brevig Mission, is now open for fishing.
Teller, Alaska, United States
The Nome Nugget

Reports of dying voles in Kotzebue area
These small rodents are a key part of the Northwest Arctic ecosystem.
Kotzebue, Alaska, United States
Raphaela Stimmelmayr, Joanna Barton, Sarah Yoder, Susan Georgette, Kimberlee Beckmen, Gay Sheffield, Carmen Daggett, Susan Tessier, Kimberlee Beckmen

Extremely rare beaked whale washes ashore in Otago
An extremely rare Spade-toothed Beaked Whale *Mesoplodon traversii* washed ashore in Otago, providing the first chance to dissect and study such a specimen, with DNA analysis underway to confirm its species.
Wellington, New Zealand
NZ Herald

At least 65 pilot whales die in Scottish mass stranding
At least 65 long-finned pilot whales have died after being stranded on an island off the north coast of Scotland, a rescue charity said on Thursday, in one of the largest mass strandings in Britain in recent times.
Scotland, United Kingdom
CTVNews

Black-legged kittiwakes dying in Kotzebue Sound area
A couple of weeks ago I spotted a small gull on the second bridge behind Kotzebue. The bird wouldn't fly and was walking slowly.
Kotzebue, Alaska, United States
Louisa Castrodale, Andrew Ramey, Racheal Lee, Susan Tessier, Joanna Barton, Gay Sheffield, Kimberlee Beckmen, January Frost, Sarah Yoder

Anchorage's popular Ship Creek to close to sport fishing for 2 weeks
Ship Creek in Anchorage will be closed to sport fishing for two weeks to support salmon stock sustainability at a local hatchery.
Anchorage, Alaska, United States
Alaska Public Media
Wesley Early, Alaska Public Media - Anchorage

Sea Gull Numbers are Extremely Low
Observers in Port Heiden, Alaska report significantly reduced sea gull populations and fewer gull eggs for subsistence, coinciding with decreased seal numbers and increased fox populations.
Port Heiden, Alaska, United States
Jaime Welfelt, Robb Kaler, Jaclyn Christensen

'There's no water': This duck hunter in Fort Smith, N.W.T., went out and found no ducks
A duck hunter in Fort Smith, N.W.T., found his usual hunting grounds dried up and devoid of wildlife due to recent wildfires and record-low water levels.
Fort Smith, Northwest Territories, Canada
CBC

One of the rarest fish on the planet is dying in the Keys. Scientists are struggling to find out why
Sawfish, and about 30 other species of fish, are turning up sick and dying in the Lower Keys as questions mount over what's causing it.
Key West, Florida, United States
WLRN

Cuvier’s beaked whale found dead on Kodiak Island
A healthy Cuvier's beaked whale, typically a deep-sea dweller, was found dead on Kodiak Island with no clear cause of death.
Kodiak, Alaska, United States
KMXT - Kodiak

No other polar bears in Kuujjuaq after Tuesday’s incident, police say
Police confirm no further polar bear sightings in Kuujjuaq following the shooting of a young bear in the town center, with ongoing vigilance for potential wildlife threats.
Kuujjuaq, Quebec, Canada
Nunatsiaq News

Rare whale found dead off Massachusetts may have been entangled, authorities say
A juvenile North Atlantic right whale, a species nearing extinction, was found dead off Massachusetts, with signs of entanglement in fishing gear.
Vineyard Haven, Massachusetts, United States
CTVNews

Stranded whale dies at Christchurch beach
A juvenile fin whale stranded at Moncks Bay in Christchurch, New Zealand, has died, with recovery operations underway. Last Sunday, a pod of false killer whales and bottlenose dolphins were euthanised after becoming stranded twice on a reef near Māhia.
Akaroa, Canterbury, New Zealand
NZ Herald

DOC warning after mass stranding deaths
A pod of about 45 false killer whales and bottlenose dolphins stranded on Sunday afternoon at Taylor’s Bay on Mahia Peninsula.The Department of Conservation is warning water-goers to be cautious near Mahia peninsula as the remains of stranded whales and dolphins may attract sharks.
Bahia Peninsula
Otago Daily Times Online News

Minister Alarmed by Plastic Pollution on Eldey Island
The expedition revealed that gannets have easy access to plastic, as their nests are mostly made from plastic debris. Hundreds of dead gannets were also observed by the experts, with it being estimated that three factors played a role in their deaths: natural attrition, bird flu, and plastic pollution.
Eldey Island
Iceland Review

Rare fin whale found dead near Kodiak
A rare, emaciated fin whale was found dead near Kodiak, Alaska, with the local Sun'aq Tribe conducting a necropsy. There isn’t enough data for biologists to declare a trend yet, but these whales are being found on the heels of an unusual mortality event for gray whales in the Pacific Ocean.
Kodiak, Alaska, United States
Alaska Public Media

52-foot-long dead fin whale washes up on San Diego beach; cause of death unclear
It is not common to see fin whales stranding along the West Coast. The species tends to stay in deeper water compared with gray whales, which travel from 10,000 to 14,000 miles (16,000 to 22,500 kilometers) round trip up and down the coast in annual migrations. There were not obvious signs of the cause of death.
San Diego, California, United States
vancouversun

52-foot-long dead fin whale washes up on San Diego beach; cause of death unclear
A 52-foot fin whale carcass appeared on a San Diego beach with no clear cause of death; it was towed back to sea.
San Diego, California, United States
Associated Press

Thousands of tons of dead sardines wash ashore in northern Japan
The sardines and some mackerel washed ashore in Hakodate on Japan’s northernmost main island of Hokkaido on Thursday morning, creating a sliver blanket along a stretch of beach about a kilometer (0.6 mile) long. Takashi Fujioka, a Hakodate Fisheries Research Institute said the fish may have been chased by larger fish, become exhausted due to a lack of oxygen while moving in a densely packed school, and were washed up by the waves.
Hakodate, Hokkaido, Japan
AP News

Mass deaths of elephant seals recorded as bird flu sweeps across the Antarctic
The virus was first reported among brown skua on Bird Island, off South Georgia. Since then, researchers and observers have reported mass deaths of elephant seals, as well as increased deaths of fur seals, kelp gulls and brown skua at several other sites. Researchers warn of one of ‘largest ecological disasters of modern times’ if the highly contagious disease reaches penguin colonies.
South Georgia, Sandwich Islands
the Guardian

Stanley declared a temporary control zone as first case of avian flu confirmed
Stanley, Falkland Islands, establishes a temporary control zone following the confirmation of its first avian flu case.
Stanley, Falkland Islands
Falklands Radio • Broadcasting news and entertainment to the Falkland Islands

Avian flu detected on poultry farm in Chilliwack, B.C.
The H5N1 strain of avian flu has been detected on a poultry farm in Chilliwack, British Columbia, marking the first confirmed case in the province this fall and prompting increased precautions among poultry farmers.
Chilliwack, British Columbia, Canada
CBC

Highly pathogenic avian influenza confirmed in Pocahontas and Guthrie counties: No public health concern, says CDC
Two cases of Highly Pathogenic Avian Influenza (HPAI) have been confirmed in Pocahontas and Guthrie counties in Iowa, but the U.S. Centers for Disease Control and Prevention (CDC) states that there is no public health concern.
Iowa, United States
KGAN

Several hundred reindeer drowned in Porsanger
Several hundred reindeer drowned in Porsanger during their migration from summer to winter pastures, causing significant loss for the district and prompting the local government to offer crisis support to affected reindeer owners.
Skáiddejávri in Porsanger, Norway
NRK

Outbreak of avian flu on Hopen
There have been similar, even larger outbreaks of avian flue in seabird colonies in north Norway. In some cases, the losses were dramatic and major fractions of the colonies were wiped out. In Spitsbergen, avian flu was found for the first time in 2002, but the recent outbreak on Hopen is the largest one so far.
Svalbard, Svalbard and Jan Mayen
Spitzbergen | Svalbard

Alaska cancels snow crab harvest again due to population concerns
The snow crab harvest in Alaska has been canceled for the second year in a row due to concerns about population sustainability, but red king crab and Tanner crab will be available for commercial fishermen this season. Last year was the first time in history the U.S. snow crab fishery was closed. The Alaska Department of Fish and Game said the harvests were closed over concerns about long-term conservation and the sustainability of crab stocks.

Humpback found dead near Kodiak gets Alaska's first 2023 whale necropsy
A humpback whale found dead near Kodiak Island in Alaska undergoes the state's first whale necropsy of 2023 in an effort to determine the cause of death and understand the shrinking humpback population in the area, with initial findings suggesting the whale may have been struck by a boat.
Alaska Public Media

Nearly a Million Dead Fish Wash Up on Louisiana Coast, Commercial Fishing Boats to Blame
Nearly a million dead fish, including redfish and menhaden, washed ashore in southwest Louisiana due to commercial fishing boats dumping an estimated 850,000 fish from their overfilled nets, sparking calls for stricter limits on the state's commercial menhaden fishery.
Abbeville, Louisiana, United States
Outdoor Life

Four dead seals on beach
Four dead seals have washed up on a beach in Trinidad, California, with locals noting an unusual occurrence as they have not seen this many washed up at once in recent years.
Trinidad, California, United States

Local Animal Rescue Group Sees Influx of Sea Lions Suffering From Potentially Fatal Bacteria Infection
A local animal rescue in Northern California warns of a surge in sea lions with a potentially fatal bacterial infection, leptospirosis, and advises dog owners to keep pets away.
Northern California, United States
Lost Coast Outpost

H5 avian influenza detected for the first time in elephant seals
NewsDesk @bactiman63 The National Agri-Food Health and Quality Service (Senasa)  confirmed new cases of Highly Pathogenic Avian Influenza (HPAI) H5 detected in marine mammals in Comodoro Rivadavia, Rada Tilly and Punta Tombo, Chubut. The agency’s National Laboratory diagnosed new samples positive for the disease, which were taken from sea lions and elephant seals found dead in the aforementioned places. Based on notification, […]
Comodoro Rivadavia, Chubut Province, Argentina
Outbreak News Today

‘Unusual’ number of dead sea lions show up on Sonoma County beach
The sea lions vary in decomposition. Several had their bones exposed Monday afternoon.
Bodega Bay, California, United States
Santa Rosa Press Democrat

Dead humpback whale calf washes up near Juneau, may have been struck by vessel
A dead humpback whale calf named Tango was found washed up near Juneau, Alaska, and an investigation is underway to determine if it was struck by a vessel.
Juneau, Alaska, United States

Mystery mass death of seals on remote, uninhabited Siberian island under investigation
Tyuleniy Island, also known as the ‘Island of the Seals,’ is located in the Sea of Okhotsk and is an important breeding ground for northern fur seals (Callorhinus ursinus). More than 300 northern fur seals and Steller sea lions have been found dead in a mystery mass die-off on a small, uninhabited island in Siberia.
Tyuleny Island
TodayHeadline

NOAA seeks public’s help on Steller sea lion killings in Copper River Delta
Biologists with NOAA Fisheries Alaska region have been conducting survey work in the area since mid-May and have so far found 22 Steller sea lions and one harbor seal dead. Necropsies performed on the animals have shown gunshot wounds and other human interactions as the cause.
Cordova, Alaska, United States

A temporary ban on salmon fishing was introduced in Chukotka
A temporary ban on all salmon fishing has been implemented in Chukotka, Russia due to declining salmon populations.
Anadyr, Chukotskiy Avtonomnyy Okrug, Russia
Prochukotku.ru

Dead beluga whales and walruses washed ashore in the estuary near the capital of Chukotka
Dead beluga whales and walruses have been found washed ashore in the estuary near the capital of Chukotka, with the cause of death currently unknown.
Anadyr, Chukotskiy Avtonomnyy Okrug, Russia

Woman found dead in apparent bear encounter outside of Yellowstone National Park
The woman's body was found about eight miles outside the town of West Yellowstone, Mont., a gateway community that borders Yellowstone National Park.
West Yellowstone, Montana, United States
Boise State Public Radio

What is the reason for large numbers of dead bees spotted in Inverness?
The spectacle of "hundreds" of dying or dead bees along the River Ness earlier this week led to a discussion on social media.
Inverness, Scotland, United Kingdom
Inverness Courier

Bird flu outbreak hits Barents Sea coast
Reports are coming in about hundreds of dead birds from Hammerfest in the west to Murmansk in the east. A zone with a radius of five kilometers is closed and guards are in place round-the-clock.
Vidyayevo, Murmansk, Russia
The Independent Barents Observer

Avian influenza outbreak in Finnmark: a natural and environmental disaster
Avian influenza has now been detected along the entire coast of Finnmark. In Vadsø, the disease has not yet been detected, but almost 800 dead birds have already been removed. See video.
Vadsø, Finnmark Fylke, Norway
NRK

N.W.T. bison anthrax outbreak grows to 27 dead animals
This is the ninth outbreak in the territory since 1965. About 60 bison died in an outbreak in Wood Buffalo National Park last year. More than 300 died in the territory's largest outbreak in 2012. Bison can become infected with anthrax while grazing or taking dust baths.
Fort Smith, Northwest Territories, Canada

Quarantine for bird flu was re-established in Syktyvkar
In Syktyvkar and Syktyvdin of the Komi Republic, quarantine for bird flu was reintroduced. The decree on the establishment of restrictive measures in certain territories of the Syktyvdinsky district and Syktyvkar was signed by the head of the republic, Vladimir Uyba. Quarantine has been in effect since July 5.The focus of bird flu was the territory of the rural settlement "Zelenets" of the Syktyvdinsky district. The hearth is located on the banks of the Vychegda River, opposite the village of Koytybozh.The place is forbidden to visit outsiders, except for specialists and local residents. The import, export and slaughter of birds are prohibited in this territory.
Vychegda River, Russia
Известия

Unusual bird sighting. Is it an alcid?
This bird was a noticed on the beach landing area of the community but not touched.
Port Heiden, Alaska, United States
Kathy Kuletz, Jaclyn Christensen, Gay Sheffield

Hundreds of seagulls found dead in suspected bird flu outbreak
Hundreds of seagulls were found dead in Kalmar, Sweden due to a suspected outbreak of H5N1 bird flu, with low risk of transmission to humans.
Kalmar, Sweden

Thousands of fish wash up on Texas beach
NATIONThe Dallas Morning News Thousands of dead fish were found laying
Lake Jackson, Texas, United States

State wildlife officials trying to revive Southwest Alaska caribou killed almost 100 brown bears in less than a month
A total of 94 brown bears, five black bears and five wolves were killed in the program that began May 10 and ended June 4, the Alaska Department of Fish and Game said this week. That’s more than four times the number biologists predicted would be taken. State biologists also say disease and changing food supplies might be a bigger factor overall.
Dillingham, Alaska, United States
Anchorage Daily News

ADF&G dispatches rabid moose roaming through Teller
A moose that was killed in Teller last week had been infected with rabies, the Alaska Department of Fish and Game confirmed.
Teller, Alaska, United States
The Nome Nugget

Dead fish washing up on shores of Lake Washington
The Washington Department of Fish & Wildlife said the fish are yellow perch, which are common in the lake.
Hunts Point, Washington, United States
KIRO 7 News Seattle

Avian Influenza suspected on Yukon Delta
Dead birds suspected to have died from Highly Pathogenic Avian Influenza have been found on Kigigak Island and Tutakoke River in Alaska, with other bird species displaying unusual behaviors.
Kigigak Island and Tutakoke River, Alaska, United States
January Frost, Bryan Daniels, Andrew Ramey, Bob Gerlach, Brian Lefferts, Sarah Yoder, Jacqualine Schaeffer, Joey Billy, John Stedman

Avian influenza detected on kittiwakes in Harstad
Kjell Arvid Andersen thought the birds were behaved strangely. Then he and his neighbors found over 30 dead birds.
Nordre Leirvåg - Bjarkøy, Harstad, Troms and Finnmark, Norway
NRK

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