Zebra Mussel ( Dreissena polymorpha ) An Invasive Aquatic Invertebrate Zebra mussels are small freshwater mollusks (fingernail sized) with a striped pattern on their shell which typically live 2 to 5 years in temperate climates.
An Invasive Aquatic Invertebrate
Zebra mussels are small freshwater mollusks (fingernail sized) with a striped pattern on their shell which typically live 2 to 5 years in temperate climates.
This is the only freshwater mussel that can attach to a hard surface. Zebra mussels breed prolifically and can form dense clusters Natural populations of 5,000 to 30,000 individual mussels per square meter are not uncommon.
Native to Eastern Europe and Western Asia.Believed to have been transported by freighters in ballast water, which was then released into the Great Lakes.First known occurrence of zebra mussels was in 1988 in the Great LakesIdentified in Laurel Lake in 2009
Increased water clarity can increase weed growth
After about a month, the veligers settle to the bottom and crawl in search of a suitable hard or rocky substrate. Juveniles have a difficult time staying attached when water velocities exceed 6 feet per second.
Zebra mussels are filter feeders - an adult mussel can filter one quart of water/day. They feed primarily on phytoplankton and zooplankton but also bacteria and detritus.
Thousand Acre Pond
At the present time, there is no known practical method to eradicate Zebra Mussels once they have become established.
We can just try to slow the spread down
Boat Ramp Monitors –
Laurel Lake, April to October, 7 day coverage
Onota & Pontoosuc, Memorial to Labor Day, 5 day.
Stockbridge Bowl, 5 day coverage
Lake and Pond Associations volunteers or private donations
All state ramps have educational kiosks and boat certification forms
Boat Wash Stations
Stockbridge, MET Grant
Pittsfield, V’s Car Wash, W Housatonic St.
Laurel Lake, portable high pressure wash
Education and Outreach programs –
‘DON’T MOVE A MUSSEL’
Local efforts to cover non-state access areas.
Lake and Pond Associations & LAPA West efforts.