A strain of avian flu, potentially deadly to marine life, has been detected in Point Reyes, California, according to the National Park Service. This follows the discovery of the same virus last month in seven dead elephant seal pups at Año Nuevo State Park, located approximately 80 miles south in San Mateo County.
Avian Flu Spreads Along California Coast
Biologists have identified a “presumptive positive case” of the virus in a common murre bird found at Kehoe Beach in Point Reyes. Even as Kehoe Beach itself does not host an elephant seal colony, concerns are rising about potential spread to the nearby colony at Point Reyes, which is home to roughly 4,000 seals. The virus, known as H5N1, has previously caused significant mortality in elephant seal populations in the Southern Hemisphere.
As of March 10, preliminary tests confirmed that one of three birds tested was positive for the avian flu. Park biologists first observed numerous dead common murres throughout Point Reyes on February 25, linking the deaths to the broader outbreak affecting Northern California beaches.
Giancarlo Rulli of the Marine Mammal Center stated that experts are actively testing animals for influenza at their Sausalito hospital, but have not yet detected any positive cases among patients during this event.
The National Park Service advises the public to maintain a safe distance from wildlife and to keep dogs leashed to prevent contact with any dead animals. Any sightings of deceased wildlife should be reported to the park.
Frequently Asked Questions
What is the current status of elephant seals at Point Reyes?
As of the National Park Service’s latest statement, no signs of illness have been observed among elephant seals at Point Reyes.
Where was the avian flu first detected in marine mammals?
The virus was first detected in seven dead elephant seal pups at Año Nuevo State Park in San Mateo County.
What should the public do if they find a dead animal?
The National Park Service recommends reporting any dead wildlife to the park.
Given the potential for spread and the known impact of this virus on similar species elsewhere, what further steps might be necessary to protect California’s marine mammal populations?
