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

Tularemia Associated with Harbor Seal Necropsy
In 2023, tularemia occurred in a wildlife volunteer after exposure to a deceased, infected harbor seal, the first known report of tularemia acquired through contact with a marine mammal, and the first detection of F. tularensis in a marine mammal.
Enetai, Washington, United States
CDC Morbidity and Mortality Weekly Report

The large ice carries polar bears to South Greenland
Unusually large amounts of sea ice have brought more polar bears from Northeast to South Greenland, with many unable to return due to currents.
Southern Greenland

Studies show there are likely more ‘sushi worms’ in Alaska salmon and other fish than there used to be
These worms, present in halibut, cod, salmon and other saltwater fish, are increasing. If the worms are well frozen or cooked, they don’t pose a health threat.
Anchorage, Alaska, United States

Whale surveys planned for eastern Bering Sea this summer
This summer, NOAA and the International Whaling Commission will conduct aerial and ship-based surveys in the eastern Bering Sea to monitor beluga and large baleen whale populations, employing new methods and expanding survey areas based on previous findings.
Eastern Bering Sea
The Nome Nugget

Japan to start hunting fin whales after five years of commercial whaling
Japan plans to expand its commercial whaling to include fin whales, five years after resuming whaling and leaving the IWC.
Japan
The Japan Times

Whale fight: Right-wing leader wants to shoot more and market whales abroad
A right-wing leader advocates for increased whale hunting and international marketing of whale meat, despite global regulations and declining participation in the industry.
Norway
NRK

Study tracks calls used by endangered Cook Inlet belugas, and human-made noise in their habitat
The article discusses concerns over the impact of human-made noise on endangered Cook Inlet belugas and the debate over noise mitigation measures.
Cook Inlet, Alaska
Anchorage Daily News

Scientists investigate paralytic shellfish poisoning as possible factor in large marine die offs
Scientists are investigating the widespread presence of paralytic shellfish toxins in Alaska's marine food chain, which may explain recent species die-offs.
Alaska, United States
Alaska Public Media
Kavitha George, Alaska Public Media - Anchorage

Microplastics found in body tissues of walruses harvested by Alaska hunters
“It’s a reflection of the plastic age we live in," said student researcher Tony Blade. "It’s ubiquitous."
Wainwright, Alaska, United States
Alaska Public Media

Southcentral Alaska waterways survey finds widespread microplastics
A study by the Alaska Environment Research and Policy Center found microplastics in all water samples from Southcentral Alaska, indicating widespread contamination.
Alaska, United States
Alaska Public Media

A new children’s book about ringed seal highlights traditional knowledge and science in Kotzebue
The new children's book combines traditional knowledge and scientific research to tell the story of a ringed seal pup in Kotzebue, Alaska, with a focus on the impact of climate change.
Kotzebue, Alaska, United States
Anchorage Daily News

'Like being at a loud rock concert': study looks at how ship noise affects Arctic marine mammals |
A study reveals that increased ship noise in the Arctic disrupts the behavior and communication of marine mammals, impacting local wildlife and indigenous hunting practices.
Beaufort Sea
CBC

Possible outbreak of botulism suspected in Sanikiluaq
Health officials in Sanikiluaq, Hudson Bay, warn against consuming fermented meat due to a suspected botulism outbreak and urge vigilance for related symptoms.
Sanikiluaq, Nunavut, Canada
Nunavut News

Steller sea lions top list of Alaska marine mammals killed by human activities
Steller sea lions are the most affected by human activities in Alaska, leading to hundreds of deaths, primarily due to entanglement in fishing gear.
Alaska, United States

Wolves hunt sea otters and seals, a startling find
Wolves in Katmai, Alaska, have been observed hunting sea otters and seals, suggesting a significant ecological link between land and marine life.
Katmai, Alaska
Animals

Avian flu decimates 5% of Peru's sea lions, sparking conservation alarm
Over 5,000 Peruvian sea lions, approximately 5% of Peru's population, succumbed to a mass mortality event linked to the avian influenza A(H5N1) virus, signaling an urgent need for research and conservation efforts to prevent further declines. The rapid spread of the virus among these colonially breeding mammals highlights potential risks of cross-species transmission and the necessity for heightened monitoring to avert new pandemics.
San Gallán Island
News-Medical.net

AI radar used to detect polar bears could be used for grizzly and black bears, too
A new AI radar system called "Bear-dar" has been developed to detect polar bears remotely and send alerts to notify people of their presence, and could potentially be used to detect grizzly and black bears as well, helping humans and bears coexist safely.
Canada
CBC

Polar bears and whales in the spotlight of toxicological studies
Toxicological studies spotlight the effects of pollutants on polar bears and whales, with new research strategies being developed to understand their impact on marine life.
Arctic
The Independent Barents Observer

North Atlantic right whale population has steadied, scientists say
The North Atlantic right whale population in Canada has stabilized, with no reported deaths since 2019, but there are still concerns about entanglements and low birth rates.
North Atlantic Ocean
CBC

New research off Cape Breton sheds light on pilot whale behaviour
New research off Cape Breton reveals that female pilot whales are the most frequent leaders during dives, often leading from the left or right flank, which could provide insights into mass strandings and help guide whales out of stranding situations more efficiently.
Cape Breton, NS, Canada

Humpback whales increasingly sighted in Arctic Alaska waters better known as bowhead territory
Most of the humpbacks were seen near the Inupiat village of Point Hope, indicating a feeding hotspot in that area. While sightings farther north have been less numerous, there has still been an increase in recent years. The study suggests that climate change and the reduction of Arctic sea ice may be a factor in the expansion of humpback whale range.
Utqiaġvik, Alaska, United States

More than 100 dolphins found dead in Brazilian Amazon as water temperatures soar
More than 100 dolphins have died in the Brazilian Amazon rainforest in the past week as the region grapples with a severe drought, and many more could die soon if water temperatures remain high, experts say.
São Paulo, Brazil
CTVNews

Southeast commercial red and blue king crab fishery remains closed for upcoming season
The Southeast Alaska commercial red and blue king crab fishery will remain closed for the upcoming season due to low stock numbers, although some areas have shown signs of rebounding, according to the Alaska Department of Fish and Game.
Juneau, Alaska, United States
Alaska's News Source

Utqiagvik City asks residents to properly dispose of beluga bones or request help with cleanup
About five beluga carcasses were left at the NARL Boat Dock on Aug. 8, causing smell and potential wildlife hazard in the area. The bones were cleaned the same day but the city reminded residents they can get help with cleanup after susbsitence hunting.
Utqiaġvik, Alaska, United States
Anchorage Daily News

NOAA increases reward to $20K for information on endangered sea lion killings
So far, 22 sea lions have been found, with signs of human interaction, including gunshot wounds.
Seward, Alaska, United States

How whale poo could be making the planet cleaner
The "whale pump hypothesis" claims nutrient-rich whale excrement feeds phytoplankton, a key producer of Earth's oxygen.

North Slope authorities urge inclusion of Iñupiat in wildlife management
North Slope experts think Indigenous experts should take the lead on wildlife management. When it comes to belugas, caribou and ice seals, managing agencies and researchers are often in charge of setting hunting regulations and analyzing the animals.
Utqiaġvik, Alaska, United States

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