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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

Scientists observe chum salmon spawning in North Slope rivers
Scientists from the University of Alaska Fairbanks have observed an increase in chum salmon spawning in North Slope rivers, potentially indicating a shift in their population and a signal of climate change. Elizabeth Lindley, a Ph.D. student working on the project, says that while evidence of spawning in a new region may be a positive for salmon, the impact on important subsistence resources including Arctic char and Dolly Varden is uncertain.
Colville River, Alaska, United States
Alaska Public Media

Crews work to contain fuel spill after tugboat runs aground north of Sitka
The grounding ruptured one of the tug’s fuel tanks, which can hold around 13,000 gallons of diesel fuel.
Sitka, Alaska, United States
Alaska Public Media

With thousands of sockeyes passing Bethel each day, dipnets are catching on
Amid severely restricted fishing on the Kuskokwim River, one bright spot has been abundant sockeye salmon runs at 30,000 fish daily near Bethel.
Bethel, Alaska, United States
Alaska Public Media

Tale of two salmon fisheries: Bristol Bay breaks record, but Yukon River collapses
The booming Bristol Bay salmon run has broken the record set just last year, while on the Yukon River, Chinook are too scarce to harvest.
Bethel, Alaska, United States

Low king counts to close Anchor River, Deep Creek to fishing
“The midpoint of the Anchor River king salmon run was extremely late. These fish are really having some odd, unprecedented run timing and behavior."
Kasilof, Alaska, United States

Chum runs on Kuskokwim River are late and low
Usually Aug. 7 is the midpoint of the coho run, but this year it was not until Aug. 8 that numbers at the Bethel test fishery increased, and then only modestly.
Bethel, Alaska, United States

After a long wait, Ugashik fishermen’s patience pays off
After a very slow beginning to their season, fishermen in Ugashik Bay saw millions of sockeye salmon return in a little over a week in mid-July.
Pilot Point, Alaska, United States

Warmer waters believed to be main cause for dead pink salmon in Norton Sound
Norton Sound residents have reported salmon die-offs in unusually large numbers during the last week. According to the Norton Sound Economic Development Corporation (NSEDC), dead pre-spawned pink salmon were found in multiple river systems over the weekend.
Shaktoolik, Alaska, United States

After summer of record heat, Alaska health officials see spike in scombroid poisoning from fish
Caused by eating fish that has not been properly chilled, symptoms can last up to 48 hours and include severe headaches, palpitations, blurred vision and abdominal cramps.At least seven people fell ill between May and August. Between 2015-2018, there were only five.
Anchorage, Alaska, United States

Salmon shark stranded near Port Heiden at the end of an unusual summer
Along with significant seabird die-offs near Port Heiden, there have been reports of small whales and porpoises, walrus and sea otters washed up on shore.
Port Heiden, Alaska, United States

Low sockeye returns prompt commercial fishing closure on the Copper River
"We’re way, well below what we expect to be at this point,” said Jeremy Botz, a biologist with the Alaska Department of Fish and Game. He says so far the entire commercial fleet has harvested around 6,000 sockeye, which is way below what the department anticipated
Cordova, Alaska, United States

Alaska Board of Fisheries navigates ‘uncharted territory’ for Southeast’s king salmon
The Alaska Board of Fisheries faces some tough decisions this week. One of those is how to conserve dwindling king salmon stocks in a way that won’t financially cripple Southeast salmon fishermen.
Sitka, Alaska, United States

As Sitkans wait for roe, news of sickness from herring eggs in Canada
Typically, cholera is associated with tropical destinations. But recently, the bacteria that can cause the disease was found in subsistence herring eggs in British Columbia. As Southeast Alaska tribes get ready to gather herring eggs, it’s left some people wondering about the future.
Sitka, Alaska, United States
Elizabeth Jenkins, Alaska's Energy Desk - Juneau

As kings suffer across Southeast, Chilkat Chinook candidate for “stock of concern”
For more than five years, Southeast’s iconic king salmon have been returning in fewer and fewer numbers. Managers with the Alaska Department of Fish and Game are recommending Chilkat, Unuk and King Salmon River Chinooks become official “stocks of concern.” Listen now
Chilkat River, Alaska, United States

State report details potential health impacts of climate change
How will climate change affect health in Alaska? Dangerous travel conditions could cause more accidents, warmer temperatures could spread new diseases and the topsy-turvy weather could worsen mental health. Those are some conclusions from a new state report released Monday. Listen now
Newtok, Alaska, United States
Rachel Waldholz, Alaska's Energy Desk - Anchorage

Stream temperature monitoring could provide insight into important fish populations
The Chilkat River and its nearby waters are a major source of food for subsistence fishermen in Haines and Klukwan. That’s one reason decreased salmon runs are alarming in the Chilkat and other rivers in Southeast. Tribal leaders around the region are trying to get a handle on one factor that may contribute to declining returns.
Klukwan, Alaska, United States

Are great white sharks sinking their teeth into Bering Sea seals?
There’s only one historical record of a great white shark in the Bering Sea: fishermen caught one nearly 40 years ago. But scientists have reason to believe that in recent years there might be more of the predators around.
Shishmaref, Alaska, United States

Pink salmon found in odd places near Homer
Pink salmon are showing up in unexpected places around the Homer area.
Homer, Alaska, United States

Asian tapeworm found in Alaskan salmon
Scientists recently announced they had found an Asian tapeworm species in pink salmon caught off the coast of the Kenai Peninsula. Listen now
Hope, Alaska, United States

New restrictions made on king salmon fishing in Kenai and Kasilof
he Alaska Department of Fish and Game announced restrictions Thursday for king salmon fishing in the Kenai and Kasilof Rivers. King runs to the Kenai and Kasilof continue their recent trend of expected low returns.
Kenai, Alaska, United States

Alaska could become climate change refuge for tropical fish
Researchers from the University of Washington used 80 years of data to figure out how much warming fish could withstand. They discovered fish in the tropics are already living in water at the upper end of their threshold.
Gulf of Alaska, United States
Elizabeth Jenkins, Alaska's Energy Desk - Juneau

Chignik fishermen stuck ashore as sockeye run fails
There is really only one thing to talk about in Chignik Bay these days: Where are the sockeye?
Chignik, Alaska, United States
Alaska Public Media / KMXT - Kodiak

Winter flooding, warm ocean likely affected Southeast humpies
This season's pink salmon were slightly bigger, but southern Panhandle runs fizzled.
Southeast Panhandle, Alaska, United States
KTOO Public Media

'Did I really see a mola mola down there?'
Scientists and fishermen have reported more unusual species in Alaska waters, including the subtropical mola mola, or ocean sunfish. It's likely because of warming sea surface temperatures.
Gulf of Alaska, United States
KTOO Public Media

11 endangered sturgeon deaths in a week send B.C. scientists looking for answers
Scientists from B.C.’s provincial government are investigating a spike in dead sturgeons after 11 adult fish were found dead on the Nechako River over the past week.
Prince George, British Columbia, Canada
Glacier Media

At-risk countries worry what 'America first' means for climate change
Bairiki Village, Gilbert Islands, Kiribati
Public Radio International

Here’s what that farmed fish escape in Washington could mean for Alaska
Some are concerned about the farmed Atlantic salmon coming to Alaska and bringing unwelcome competition for native species.
Anacortes, Washington, United States
Alaska Dispatch News

Tales of Lake Iliamna monster resurface with new sightings
On June 19, some kids spotted an unrecognized creature the size of a large whale offshore near the Alaska village of Iliamna. Other accounts followed.
Iliamna Lake, Alaska, United States
Alaska Dispatch News

Where are the kings? Kuskokwim River may see its worst run on record.
Residents who have long depended on chinook salmon to fill drying racks and smokehouses are worried about their food for next winter.
Alaska Dispatch News

Please go fishing, Washington state says after farmed Atlantic salmon escape broken net
It's open season on Atlantic salmon as the public is urged to help mop up a salmon spill from an imploded net pen holding 305,000 fish at a Cooke Aquaculture fish farm near Cypress Island.
Cypress Island, Washington, United States

Too many pink salmon in Kachemak Bay?
If Alaska expands how many pink salmon its hatcheries — such as the one in Tutka Bay — produce, will there be unintended consequences that harm Kachemak Bay?
Tutka Bay, Alaska, United States

Scientist says hatchery strays could threaten wild fish populations
Large numbers of salmon straying from hatcheries in Southeast Alaska, as well as a low river flow, helped create lethal environments for wild salmon, according to a new report.

Unusual species in Alaska waters indicate parts of Pacific warming dramatically
Hinchenbrook Entrance, Alaska

Kachemak Bay has seen massive die-offs of sea stars and other species. What’s going on?
Kachemak Bay has witnessed massive die-offs of sea stars, murres and razor clams. Whats going on?
Seldovia Village, Alaska, United States

Mushy halibut syndrome reported by Inlet fishermen
Saltwater fishery officials are reporting a resurgence of a mysterious condition that's bound to turn the stomachs of anglers -- mushy halibut syndrome. Alaska Department of Fish and Game's Barbi Failor said the department is receiving more reports of mushy fish caught by sport fishermen all over Cook Inlet.
Kenai, Alaska, United States

Our mysteriously shrinking Kenai king salmon
Since Les Anderson landed a 97-pound Kenai king in 1985, the prized fish has been harder to find and smaller. Is there something we all can do to help reverse the trend?
Kenai, Alaska, United States

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