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400+ dead or dying seals washed up this year in Maine, USA

20.08.18 Dead Seals In Maine, USA

A dead seal lies on the shore at Bayview Beach in Saco on Aug. 12. Staff photo by Shawn Patrick Ouellette

As the number of dead and stranded seals washing up on southern Maine beaches rises by the day, researchers are linking the sudden die-off to decades of chemical pollution that made the seal population vulnerable to toxins and disease.

“We don’t think there is any possibility that these animals are biologically healthy,” said Susan Shaw, a marine biologist based in Blue Hill.

Shaw has studied the effect of man-made toxins such as polychlorinated biphenyl – PCB – on the long-term health of harbor seals for almost two decades. Her findings, based on flesh samples, show that the population of harbor seals in the Gulf of Maine is loaded down with toxic, immune-suppressing chemicals, conclusions that are in line with a thick body of scientific evidence from studies of whales, dolphins, porpoises and other marine animals in the U.S., Canada and Europe. “They have body burdens that are just staggering,” Shaw said.

“We find this in young animals. They are immune-suppressed from birth,” she added. “When some pathogen comes along like this, they are very susceptible to becoming very sick and dying very quickly.”

Courtesy of pressherald.com

https://tinyurl.com/ya7g7znq

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