"Rock Snot" Invasive Algae Found in Delaware River, Threatens Trout Fishing
May 01, 2012 -- Warnings will soon be posted in the Delaware Water Gap National Recreation Area advising boaters and fishermen of a new invasive species of algae called Didymo, more commonly known as "rock snot" because of its goopy appearance.
Scientists in the past two weeks have discovered the algae from the Dingmans Ferry bridge in the Gap stretching about 100 miles north to upstate New York, where the river splits in its western and eastern branches.
"It might go all the way to Trenton," said National Park Service biologist Rich Evans. Read the full story to get the details.