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Government of Manitoba
Conservation and Water Stewardship
Aquatic Invasive Species
Zebra Mussel Bulletin - Province Advises Zebra Mussel Larvae Found in Lake Winnipeg's South Basin.

To read more, please click here. Please check back as information on this website is regularly updated.

What are Aquatic Invasive Species?

An aquatic invader is a non-native species, whose introduction will likely cause (or has already caused) damage to the host ecosystem, existing species therein, the economy or human well-being. Invasive species thrive in the absence of their native predators and have the potential to drastically alter habitat, rendering it inhospitable for native species. ( Source: Department of Fisheries and Oceans Canada)

Why are Zebra Mussels making news?

Zebra mussels (Dreissena polymorpha) were confirmed in Lake Winnipeg in the fall of 2013. Zebra mussels are small, clam-like, aquatic animals that are a significant environmental and economic concern to Manitoba. Native to Eastern Europe and Western Asia, zebra mussels have caused millions of dollars in damage to the Laurentian Great Lakes area and have cost the North American economy billions of dollars to control.

Zebra Mussel Treatment and Control Project

Since Zebra Mussels were found in Lake Winnipeg in the Fall of 2013, the Department of Conservation and Water Stewardship has explored a number of options to address the issue, culminating in the Treatment and Control Project in 4 harbours. The Frequently Asked document listed below contains answers to common questions posed by Manitobans.

Please visit this web page regularly to get current status updates on the Zebra Mussel Treatment and Control Prroject. View the calendar below for treatment dates. To help prevent the spread of Zebra Mussels, click here.

To report an Aquatic Invasive Species click Here

Other Aquatic Invasive Species
Rusty Crayfish

The Rusty Crayfish Image

Photo Courtesy of DFO
Zebra Mussel

The Zebra Mussel Image

Photo Courtesy of Ohio Sea Grant
Asian Carp

Asian Carp Image
Spiny Waterflea

Spiny Waterflea / Fishhook Waterflea Image
Invasive Giant Reed

Invasive Giant Reed Image
Round Goby

Round Goby Image
Eurasian Watermilfoil

Eurasian Watermilfoil Image
Curly-leaf Pondweed

Curly-leaf Pondweed Image
Quagga Mussel

Zebra Mussel/ Quagga Mussel Image
Fishhook Waterflea

Spiny Waterflea Image

If you think you have encountered an aquatic invasive species, or need further information, please contact:

Manitoba Conservation & Water Stewardship, Fisheries Branch
Box 20, 200 Saulteaux Cres.
Winnipeg, Manitoba, R3J 3W3

Telephone: (204) 945-7787
Fax: (204) 948-2308
Toll Free: (877) 867-2470
Email: fish@gov.mb.ca

To report an Aquatic Invasive Species click Here
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