Didymo in East Branch of Delaware

It seems almost inevitable now that the invasive algae will infest many famous eastern U.S. trout streams. “Samples taken by DEC have confirmed that didymo is present in the East Branch of the Delaware River. In addition, based on samples taken near the Route 191 bridge in Hancock, Delaware County, didymo is suspected to be present on the West Branch of the Delaware River as well.” From the Lake Placid (New York) News.