A recent report by the Saskatchewan government says no invasive mussels were found in any of the province's waterways in 2018.

The Ministry of Environment sampled 121 bodies of water in Saskatchewan last year as part of their invasive mussel monitoring program and came up empty in finding any invasive mussels.

Ron Hlasny, a senior aquatic biologist with the Ministry of Environment, said they checked about a dozen bodies of water in the southwest during the program.

"Once you slide down from Sask Landing, you hit Duncairn Dam or Reid Lake, Lac Pelletier, Loch Leven, Cypress Lake, Eastend Reservoir, Cookson Reservoir, Fife Lake, Thomson Lake, and then back into Buffalo Pound Lake on the way back," he said.

Even though the search in the southwest came up empty, there is a reservoir just 55 kilometres into Montana that has confirmed it has invasive mussels in it.

"They had found some in the Missouri River system," he said. "Alberta hasn't found any, B.C. system hasn't found any, and Manitoba is a unique system because they do have them in the Red River, Lake Winnipeg, and then out to Nelson (River)."

The annual invasive mussel monitoring program uses a plankton net to collect the samples.

"When we go to a lake we will, based on the protocols, you'll sample what we call 1,000 litres and we will do that in usually four locations," Hlasny explained. "Usually around places like the boat launches and that because that is what we would expect to be the carrier if they did come into that water body."

The Ministry of Environment check over 2,900 watercraft for signs of aquatic invasive species (AIS) in 2018 and five were found to be carrying AIS.