more on Didymo
Take a look at this page for more info and cleaning solutions. We've really got to work together to prevent the spread of this stuff.
The news is not too good:
From the Post-Standard, Syracuse
Didymo found in East and West branches of Delaware River
Posted by David Figura September 28, 2007 4:45PM
The presence of didymo, an invasive plant species commonly called "rock snot" by anglers, has been confirmed this week by DEC officials on two, well-known trout streams in the Catskills.
Steve Lorence, fisheries manager of the Region 4 DEC office in Stamford in Delaware County, said sampling by DEC aquatic biologists has confirmed the presence of the slimy, brown-colored plant on at least five sections of the West Branch of the Delaware River, including the confluence with the Beaverrkill.
In addition, it's been found near the Route 191 bridge in Deposit on the West Branch of the Delaware River.
Unlike many other aquatic nuisance plants, didymo or Didymosphenia geminata, grows on the bottom of flowing and still waters. It can develop thick mats even in fast-flowing trout streams. In its presence, fishing becomes difficult, the abundance of bottom-dwelling organisms declines, and trout and other fish that feed on those organisms also decline. It resembles rotting cardboard when it dries and rots.
Its presence in the Catskill, often touted as one of the premier trout-fishing areas of the state, could mean trouble for an area where millions of dollars in tourism related to fishing is spent each year.
The microscopic algae cling unseen to waders, boots, boats, lures, hooks, sinkers, fishing line, and other fishing gear, and remain viable for several weeks under even slightly moist conditions, according to a DEC press release.
Absorbent items--for example, the felt-soled waders and wading boots commonly used by stream anglers-- can easily spread it. Canoeists and kayakers can also unknowingly contribute to its spread.