August 22, 2018 — As the number of dead or stranded live seals washing up along the coast from northern Massachusetts to southern Maine continues to increase dramatically, marine mammal experts are considering influenza or environmental pollution as potential explanations.
Although there is no definitive cause for the uptick in seal deaths — the count is more than 400 so far this year — the Seacoast Science Center, in Rye, New Hampshire, is continuing to test tissue from fresh seal carcasses to determine if there is a possibility of illness. Live seals have been found in poor condition with signs of lethargy, coughing, sneezing and having seizures, according to Jennifer Goebel, a spokeswoman for the National Oceanic and Atmospheric Administration based in Gloucester.
NOAA, a scientific agency which focuses on the conditions of the oceans, major waterways and the atmosphere, released an updated number of seal strandings and deaths Tuesday morning, primarily gray and harbor seals.
In northern Massachusetts and New Hampshire, marine mammal specialists found 15 live and 26 dead seals in July. As of Aug. 20, they had found 14 live and 31 dead seals in the same region. As of the same date, 57 dead seals have been accounted for in Massachusetts and New Hampshire, according to NOAA statistics. Four seals, three babies and one adult, were reportedly found dead on Plum Island in the last week.
NOAA scientists totaled 404 dead and live seals when examining all seals found on the shoreline in Massachusetts, New Hampshire and Maine.