The Central Kootenay Invasive Species Society (CKISS) is thrilled to announce that all 257 water samples collected in 2024 from Kootenay region lakes and rivers tested negative for invasive zebra and quagga mussels. These results confirm that our local waterbodies remain free of these harmful aquatic invaders.
CKISS conducted monitoring in waterbodies including Upper and Lower Arrow, Kootenay, Duncan, Slocan, and Summit Lakes, as well as the Columbia, Kootenay, and Slocan Rivers. Samples were analyzed by a designated B.C. Government lab, reinforcing the success of prevention and monitoring efforts.
Despite this good news, the threat of invasive mussels looms large. Zebra and quagga mussels can devastate aquatic ecosystems, outcompete native species, and negatively impact recreational activities, increase hydro and maintenance costs. CKISS urges all watercraft users—whether motorized or non-motorized—to comply with the B.C. Invasive Mussel Defence Program, which includes mandatory watercraft inspections to prevent their spread. Additionally, it’s crucial to always Clean, Drain, and Dry your watercraft and gear when traveling between waterbodies. These simple actions help prevent the accidental spread of invasive species and protect our cherished lakes and rivers.
For more information, visit www.gov.bc.ca/invasivemussels.

CKISS