Zebra mussel on a ruler

Zebra mussel on a transparent ruler which shows that the mussel is about one fourth inch long
Photo By/Credit
Deborah Kornblut/USFWS
Date Shot/Created
09/28/2021
Media Usage Rights/License
Public Domain
Image
Individual mussels tend to be quite small. While a zebra mussel can grow up to two inches long, most are less than an inch.
Recreational Activity
Boating - motorized
Boating - non-motorized
Fishing
Species
Dreissena polymorpha
Subject tags
Aquatic animals
Aquatic environment
Aquatic plants
Invasive species