Home / Health / California sea lions are facing a health crisis that Serious ‘unprecedented’

California sea lions are facing a health crisis that Serious ‘unprecedented’



Sea lions off the coast of California are increasingly facing a definitive diagnosis. This may be linked to man-made toxins from chemicals over many generations.

Reuters reports that more and more California sea lions are being diagnosed with urinary tract cancer. which is the most common cancer in these aquatic mammals These organisms have the highest cancer rates among mammals, including humans.

The findings are part of a study co-authored by researchers at the Marine Mammal Center and published in the peer-reviewed journal Frontier in the journal Marine Science.


Approximately 18 sea lions were dissected by the Marine Mammal Center between 1979 when the cancer was first discovered, and 1994 had that form of cancer. That rate has only grown in the past few years. Nearly a quarter of adult California sea lions live, according to a study published last December. was diagnosed with cancer

Cara Field, medical director of the Marine Mammal Center, told Reuters: “This is really extraordinary and terrible,” “This is an unprecedented rate of cancer in wildlife.”

Many of these sea lions have been found to carry OtHV-1, or Otarine herpes virus, which is a virus detected in the reproductive system. That could be a key factor in the diagnosis of these sea lions. A recent study published in the journal Animals noted that cancer-free sea lions tested positive for the same virus. But there is a much lower rate of being diagnosed with cancer.

The virus is also likely linked to the insecticide found in the deceased sea lion. The presence of products such as the nondescript pesticide DDT has been linked to a higher likelihood of cancer. DDT was banned in the United States in 1972.

Padraig Duignan, a pathologist at MMC, told Reuters the sea lions mate near a toxic waste site near the Channel Islands. This is the area where nearly 25,000 barrels were believed to have been stored for DDT in April.

“Although some of the pollutants we find in carcinogens have been inactive for many years,” Duignan said, But these cancer-causing elements persist in the environment for a very long time and wreak havoc on opportunistic coastal food sources such as sea lions,” it said in a statement. As much as these cancer victims and the oceans are sending loud and clear alarms in the sick bodies of the guard species.


Source link