Of the 10 watercraft confirmed to have adult invasive mussels, six came from Ontario.

The society is launching a project to monitor zebra and quagga mussels and Asian clams in lakes throughout the Okanagan, and needs public help.

The Ministry of Environment said a boat they intercepted on July 3 near the Manitoba border had invasive mussels.

Adult zebra mussels have been discovered in Sipiwesk Lake in Manitoba, which is north of Cross Lake and part of the Nelson River.

Zebra and quagga mussels are non-native, freshwater mollusks originally from Eastern Europe and Western Russia.

The Ministry of Environment said an inspection turned up invasive mussels in a boat that was being brought into Saskatchewan from the U.S.

Saskatchewan says it continues its fight to prevent zebra and quagga mussels from entering the province.

Inspection stations throughout the province are now open to prevent harmful zebra and quagga mussels from hitching a ride on a boat into Okanagan waters.

Aquatic invasive species can have a severe economic impact on communities and the province, according to reports.

Invasive mussels, such as zebra and quagga mussels, pose a risk to Saskatchewan waterways.