Zebra Mussels on Boat Propeller

A propeller is covered in tiny mussel shells.

Zebra Mussels on Boat Propeller

A zebra mussel-encrusted boat propeller from Lewis and Clark Lake in South Dakota. Zebra mussels are an invasive species that attach to virtually any hard, non-moving surface. Boat propeller prepared and provided by SD GF&P.
Image
Photo By/Credit
Sam Stukel/USFWS
Media Usage Rights/License
Public Domain
Subject tags
Invasive species