Veteran scuba diver Paul Ehorn sees Great Lakes zebra mussels as a double-edged sword.
The invasive species primarily consumes plankton, but also filters other suspended material, which improves water clarity. However, they also have attached to the shipwrecks that Ehorn and other divers love to explore.
“It has benefitted the visibility,” said Ehorn, a speaker recently at Loves Park Scuba, “but I would prefer to give up part of that visibility to see the objects and the beautiful wood on the shipwrecks, which is hidden in so many cases. “You are seeing the shapes of items (on the wrecks), but you can’t tell what it is because they are entirely encapsulated by zebra mussels.”...[rrstar.com]
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