Manitoba Economic Development, Investment, Trade and Natural Resources has detected two positive samples of zebra mussels in the St. Malo Reservoir, located in St. Malo Provincial Park and southeastern Manitoba, as part of its ongoing monitoring program.

The positive samples are a reminder of the importance to remain vigilant against the spread of aquatic invasive species (AIS).

The Manitoba government has launched its Early Detection Rapid Response Plan for aquatic invasive species and is placing signage around the reservoir to outline the requirements that must be followed to decontaminate watercraft and water-related equipment to prevent the spread of zebra mussels and other AIS into other Manitoba water bodies. The Manitoba Conservation Officer Service is also monitoring the area for compliance with these requirements and providing education.

The reservoir is frequented by recreational users in canoes, kayaks and other non-motorized watercraft, as well as thousands of beachgoers at the St. Malo Provincial Park each year. The reservoir is not open for use by gas-powered motorized watercraft.

This is an important example of how all water users play an important role in protecting Manitoba’s water bodies from the introduction and spread of AIS. When leaving a water body, Manitobans must clean, drain and dry both motorized and non-motorized watercraft, including power boats, jet skis, sailboats, stand-up paddle boards, canoes and kayaks, as well as all water-related equipment including:

  • watercraft trailers;
  • fishing gear;
  • water pumps;
  • personal flotation devices including life jackets;
  • paddles and anchors;
  • beach toys (such as sand pails and shovels);
  • floating devices and inflatables (such as tubes, rafts, water mats and hunting decoys); and
  • scuba and snorkeling gear.

Watercraft inspection stations are set up throughout Manitoba to help water users to be compliant with AIS requirements. Anyone transporting motorized or non-motorized watercraft over land must stop at all open watercraft inspection stations along their route.

For up-to-date station location and hours of operation, including mobile station updates, visit gov.mb.ca.

For more information on AIS and to view Manitoba’s Aquatic Invasive Species Prevention and Response Plan, visit gov.mb.ca.