Mass Die-Off of Whales in Atlantic Is Being Investigated


On average, eight humpback whales are stranded each year from Maine to Virginia, and fewer than two are hit by ships, according to data from NOAA.

An unusual mortality event is a specific designation under the Marine Mammal Protection Act, and is defined as “a stranding that is unexpected, involves a significant die-off of any marine mammal population, and demands immediate response.”

Whale or other marine mammal die-offs are often poorly understood by scientists, and this case is no exception. Officials from NOAA Fisheries could not explain why the animals were coming into greater contact with vessels, or if there were any human-caused or climate-related disturbances that had changed their behavior.

Gregory Silber, marine resources manager in the agency’s Office of Protected Resources, said that there had not been any increase in…



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