November 8, 2019 — Marine researchers are reporting a spike in sunfish strandings this fall as waters continue to cool off Cape Cod.
Ocean sunfish, also known as mola mola, is one of the heaviest known bony fishes in the world. Adult sunfish typically weight between 550 and 2,200 pounds.
It is a unique shape and resembles a fish head with a tail and has a mainly flat body.
As the sunfish are migrating south to warmer waters they can get trapped and cold stunned, mainly in Cape Cod Bay, similar to what happens with sea turtles.
Marine biologist Carol “Krill” Carson, the president of the New England Coastal Wildlife Alliance, said sunfish strandings average between 20 and 40 per season, and there have been 135 carcasses documented this year.
“This year is our busiest season and we have exceeded all previous seasons already,” Carson said. “The stranding season hasn’t even ended.”
The sunfish stranding season typically runs from mid-August through the end of December.
“It’s been a really bad season for ocean sunfish,” Carson said.