Tuesday 28 June 2022 05:57 PM Invasion of the 'rock snot': Gooey algae that suffocates organisms are ... trends now
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Gooey 'rock snot' that suffocates organisms living on the bottom of rivers and streams is invading Michigan waterways.
Formally known as didymo, this algae creates a mat that can grow over six inches thick and some have been observed to be two-feet-long.
While non-toxic, rock snot reduces habitat for macroinvertebrates that are an important food for the underwater ecosystem.
The algae can also survive for 40 days in cool, dark, damp conditions such as on angling equipment, neoprene and felt-soled waders and boots – anglers are encouraged to clean gear in Michigan after every use.
Gooey 'rock snot' that suffocates organisms living on the bottom of rivers and streams is invading Michigan waterways
Didymo flourishes in cold water and sprout stalks 'under really low-nutrient conditions,' Ashley Moerke, Lake Superior State University (LSSU) professor and director of the new Center for Freshwater Research and Education (CFRE), told MLive.
Despite its nickname, didymo does not feel slimy, but has a wet wool-like texture.
But it appears like goop as it clings to rocks and underwater plants.
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