Rock Snot Is Spreading

That's the word in a NYTimes science article--apparently fishermen spread it on their waders, even including to New Zealand. The lede:

The Esopus Creek, a legendary Catskill Mountain fly fishing stream that is an integral part of New York City’s vast upstate drinking water system, is one of the latest bodies of water to be infected with Didymosphenia geminata, a fast-spreading single-cell algae that is better known to fishermen and biologists around the world as rock snot

Maybe as I get old and senile I get more enjoyment out of names: first karnal bunt, now rock snot?