A “voracious predator,” the Northern snakehead, is being examined in the waters of the John Heinz Refuge in Tinicum, writes Frank Kummer for The Philadelphia Inquirer.
Snakeheads eat native fish, and the Pennsylvania Fish and Boat Commission sees them as an environmental threat. It is illegal to transport them live in the state.
“They are a prized food fish. They were brought here mainly for people to eat. And they’ve been liberated into waters around the area,” said Geoff Smith, a PFBC biologist…