Zebra Mussel Veliger Testing


Jeff Kasowski
Aquatic Ecologist

Zebra mussels have become a large threat to our lakes, and early detection can prevent the spread to other water bodies.  Our staff can collect zebra mussel veligers in the field, identify them in the lab, and train volunteers in field collection.

Zebra mussels are detected by looking at the water under a microscope.  For non-infested lakes, we recommend sampling three sites per lake but compositing the sample.  In non-infested lakes, reporting will be presence/absence.  In infested lakes, we provide a sample count per liter.

Our laboratory has five years experience in processing Zebra mussel veliger samples, and our identifications have been
verified by 3 different government agencies. In 2016 RMBEL processed Zebra mussel samples from 413 different Minnesota lakes and many other lakes and rivers outside of Minnesota.

Monitoring Details

We will supply sample bottles and lake maps of recommended testing sites for all clients.  A data sheet and standard lab chain of custody must accompany all samples submitted to the laboratory.  You can print these data sheets from the links below.

Early Detection Monitoring for an Uninfested Lake

Zebra Mussel Veliger Monitoring in an Infested Lake

Sampling Procedure for Early Detection in an Uninfested Lake

Below is some helpful information on zebra mussel identification, monitoring, and prevention:
Minnesota Department of Natural Resources (DNR)
-Infested Waters List
-Invasive Species Laws
Minnesota Sea Grant
University of Minnesota
Minnesota Pollution Control Agency (MPCA)
Invasive Mussel Collaborati