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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

Coastal Yukon River faces flood advisory as lower Kuskokwim catalogs flood impacts
Communities along the lower Kuskokwim River and coastal areas in Western Alaska assess damage from recent storms, with flooding and erosion impacting homes and infrastructure, and a new storm potentially exacerbating conditions.
Western Alaska, United States
Alaska Public Media
Sage Smiley, KYUK - Bethel and Evan Erickson, KYUK - Bethel

Disappearing sand dunes and plovers
Sand dunes disappear with more frequent and powerful storms in Western Alaska. These storms have impacted bird nesting grounds and tundra plants.
Hooper Bay, Alaska, United States

September storm leaves behind treasured beach finds
The remnants of Typhoon Merbok not only battered Alaska’s west coast in September, the storm also left behind a few treasures in its wake.
Chevak, Alaska, United States
KYUK

Chevak rallies to repair storm-damaged subsistence gear
During a community meeting, Chevak residents said better emergency planning should be a long-term priority. For now, though, assessing damage is the focus.
Chevak, Alaska, United States
Alaska Public Media
Emily Schwing, special to Alaska Public Media

As the storm raged, a mad rush to keep the power on in Hooper Bay
The storm could have threatened the town’s winter subsistence stock if not for the work of local power plant operators.
Hooper Bay, Alaska, United States
KTOO

Unknown plant or fungus observed in cottonwood log
Nobody I have asked has seen any plant like this. I touched it soon after the picture and it turned into a maroon colored powder.
Lower Yukon

Strange behavior in a Canada goose
This video shot on Thursday May 19th, shows the erratic circling behavior of a Canada goose. Although the cause is unknown, this type of behavior is according to USGS, "highly suggestive" of an infection with Highly Pathogenic Avian Influenza (HPAI).
Hooper Bay, Alaska, United States
Gay Sheffield, Angela Matz, Rose Kalistook, Louisa Castrodale, PATRICIA SCHWALENBERG, Tim Thomas, Kimberlee Beckmen, Desirae Mack, Mike Brook, Bob Gerlach, Megan Boldenow, Raphaela Stimmelmayr, Erica Stone, Michael Bruce, Andrew Ramey

Where are the tomcods (Eleginus gracilis)? Chevak
There is usually an abundance of this fish in the fall and early winter season. This is a usual harvest for most YK Delta coastal villages. Note: According to NOAA Bering Sea Bottom Trawl data, there has been an 88% decline reported in the biomass of saffron cod from 2020 to 2021 in the N. Bering Sea.
Chevak, Alaska, United States
Carmen Daggett, Gay Sheffield, Cynthia Paniyak, Jayde Ferguson, Ted Meyers

7 hunters return home after being stranded on the frozen Yukon River for 7 days. Here's their story.
“The ice was so thick flowing down the river. It was forming so fast. It was freezing so fast. Just amazing. I’d never seen anything like that," one of the hunters, Rex Nick, said.
Emmonak, Alaska, United States
KYUK

Abnormal growth on Inconnu (Stenodus leucichthys)
A tumor is present on the lower jaw of the sheefish (*Stenodus leucichthys*).
Nunam Iqua, Alaska, United States
Jayde Ferguson, Erica Lujan, Jeremy Fitka

Black Patches on Cisco fish (Coregonus autumnalis) appear to be Phaeohyphomycosis
Fish caught while ice fishing has black patches on skin. Appears to be the same black fungal syndrome previously reported in Kipnuk.
Emmonak, Alaska, United States

Covid had spared Alaska’s most remote villages. Not anymore.
Almost 20 percent of residents in one town have tested positive for the coronavirus.
Washington Post

Exposed Permafrost in Tundra
Permafrost is becoming exposed in Western Alaska, in areas where the landscape transitions to tundra.
Alakanuk, Alaska, United States

Caterpillar Causing Itchy Skin Likely a Rusty Tussock Caterpillar (Orgyia antiqua)
Rusty tussock caterpillars can cause skin irritation for people when handled individually, and are responsible to large defoliation events when populations are high.
Alakanuk, Alaska, United States

Sunken Earth
Permafrost thaw is causing tundra to sink and pool water.

White Spots in Smelts Appear to Be a Type of Tapeworm or Nematode
The white spots found in the smelt appear to be tapeworm or nematode larvae. The Centers for Disease Control and Prevention (CDC) recommend cooking fish at about 153 degrees Fahrenheit for 5 minutes or freezing the fish at -4 degrees Fahrenheit for 7 days to kill the larvae before you eat the fish.

Winter Storm Batters Western Alaska Coast, Taking Out Power And Sea Ice
A big winter storm came in from the Bering Sea and battered the Western Alaska coast from the evening of Nov. 25 through Nov. 26. Some communities, like Hooper Bay, have reported flooding.
KYUK

Dead Pre-spawned Pink Salmon (Oncorhynchus gorbuscha)
During the summer of 2019, warm water temperatures lowered the amount of dissolved oxygen in rivers and caused salmon across the state, including Mountain Village, to die before they were able to spawn.
Mountain Village, Alaska, United States

Chum Salmon (Oncorhynchus keta) with Twisted Spine
Chum salmon (*Oncorhynchus keta*) caught with a spinal curvature, which may be related to many different factors including genetics, infectious disease, trauma, neoplasm, diet, or changes in the environment.
Mountain Village, Alaska, United States

Sturgeon Caught in Yukon River
Two sturgeon were caught in the Yukon River, farther upriver than has been previously reported.
Mountain Village, Alaska, United States

Dead Chum Salmon (Oncorhynchus keta), King Salmon (Oncorhynchus tshawytscha), and Whitefish Along Yukon Riverbank
Dead salmon and whitefish found along the banks of the Yukon River.
Alakanuk, Alaska, United States

Heat Wave Hits Yukon-Kuskokwim Delta
People living in the Yukon-Kuskokwim Delta felt something unusual this past holiday weekend: a heat wave. Temperatures crept close to 90 degrees in many parts of the region.

Dead Moose (Alces alces) Found in Water
Single dead moose found in water, with injury on one side of its abdomen

Hunters stranded on sandbar after falling through Yukon River ice in Western Alaska
The cold and wet hunters built a fire to keep warm until Alaska Army National Guard rescuers arrived hours later.
Anchorage Daily News

Jelly-like Meat Texture Found in Ringed Seal (Phoca hispida)
Ringed seal (*Phoca hispida*) found with jelly-like meat texture and thin skin near the armpit and ribcage.
Scammon Bay, Alaska, United States

Two rare earthquakes shake western Alaska coast
Two quakes shook the coast of the Yukon-Kuskokwim Delta Tuesday night about 45 miles offshore of the community of Hooper Bay.
Anchorage Daily News

Dead Sea Mammal and Sea Birds on the Beach
Residents of Chevak and Hooper Bay found two species of sea bird either dead or approachable near the mouth of the Kiuqliiviq and Aprun rivers near fish camps. Residents of Hooper Bay also found a dead sea mammal on the beach.

Blackline Prickleback (Acantholumpenus mackayi) Caught While Fishing For Herring
Blackline Prickleback (*Acantholumpenus mackayi*) caught along the Bering Sea Coast

Unusual Species (Ross's Gull?) Sighted
Ross's gull (*Rhodostetia rosea*) spotted in Hooper Bay, south of normal species range.

Severely iced-over cellular tower causing service disruptions in Western Alaska
A GCI cell tower in Western Alaska encapsulated in unusually thick ice and snow has caused service disruptions in villages.
Scammon Bay, Alaska, United States
Anchorage Daily News

"Glowing" Tomcod (Microgadus proximus) in the dark - plankton?
I notice fluorescent glowing in the dark: happens to be the tomcods I caught the other day.

A tale of two goose populations: Y-K Delta’s shrink, Arctic coast’s expands
Black brant populations are struggling in the species' once-dominant Yukon-Kuskokwim Delta breeding areas, but conditions are better for brant breeding on the Arctic coastline.
Yukon-Kuskokwim Delta, Alaska, United States
Alaska Dispatch News

Beach Sand - Coastal Erosion
We are losing coastline due to erosion and this is a sad sight to witness.
Sandra Hill, Jacquelyn Overbeck, Mary Mullan

Drying Ponds and Buttercups
I went to gather some yesterday and there was no water to speak of; in a pond that's has been filled with water my whole life.

Community Sick with Spring Flu
Seems to happen same time each year.
Scammon Bay, Alaska, United States
Jennifer Dobson, James Berner, Morgan Simon

Big Blueberries (Vaccinium ovalifolium), Lots of Them
Plants

Dump Fire Raises Wildfire Concerns
Dump and hill fire

Bluff Erosion
Bluff/cliff side erosion along the Ningikfak River.

Early Blueberries (Vaccinium corymbosum)

Brown Bear (Ursus arctos) Caught in Village
Brown bear (Ursus arctos) caught in village.

Old World Swallowtail (Papilio machaon aliaska) Butterfly
Large Old World Swallowtail Butterfly

Early Rhubarb (Rheum rhabarbarum) Sprout

Moose (Alces alces) Near Village
Moose (Alces alces) near village

Unusual Bird (Lanius excubitor) Sighting
Identification pending.

Eroding Bluff Threatens Road
Eroding bluff threatens community transportation access.
Chevak, Alaska, USA

Petroleum Smell in Chum Salmon (Oncorhynchus keta)
6-20-12 Petroleum smell in chum salmon - Chevak, Alaska, USA

Ice seal mortality

Yukon River Silvers On Track For Lowest Runs Ever
This season is shaping up to be the worst fall for salmon fishing on the Yukon River in recorded history. It follows the worst recorded summer salmon season ever.
Nunam Iqua, Alaska, United States

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