In Alberta’s mountain national parks, the threat of aquatic invasive species (AIS) has led to the closure of several lakes and rivers to watercraft, sparking concerns among paddlers who are advocating for a more collaborative approach to address the issue.
To combat the spread of AIS, Jasper National Park, along with Banff, Yoho, Kootenay, and Waterton Lakes, will implement a zoning system dividing lakes and rivers into three zones with varying regulations for water activities. While popular areas remain accessible to paddlers, the restrictions primarily impact backcountry locations.
Andrew Loughlin, a seasoned whitewater enthusiast based in Jasper for over two decades, expressed disappointment over the new limitations, describing them as disheartening in a letter to Parks Canada. He emphasized the significance of accessing unique places within the park through boating, noting that a significant portion of navigable waterways in Jasper are now restricted.
The decision to enforce these measures follows the confirmation of whirling disease in Lake Louise, attributed to human activities on the lake. This disease, also found in Banff and Yoho, causes deformities in young fish species, posing a threat to their survival. With the disease spreading since its initial detection in British Columbia in 2024, efforts are underway to prevent further dissemination within park ecosystems.
Parks Canada emphasizes the importance of proactive measures to mitigate the risks associated with invasive species and diseases. The agency highlights that once introduced, these threats are challenging to eradicate and can spread downstream, underscoring the role of watercraft and fishing gear in their transmission.
While some water bodies like the Athabasca River permit recreational activities, backcountry routes with challenging rapids are predominantly off-limits to watercraft, fishing waders, and windsports. Special considerations are made for certain rivers downstream of natural barriers, allowing paddlers to access these areas safely.
Amid concerns raised by paddlers, including the lack of detailed closure information provided by Parks Canada, suggestions for alternative strategies such as stricter permits or gear inspections have been proposed. Despite the impact on water recreation enthusiasts, advocates stress the importance of biosecurity and active involvement in shaping future policies to safeguard park ecosystems.
As the park authorities continue to monitor and regulate water activities, adherence to guidelines and active engagement with user groups are encouraged to ensure the preservation of natural habitats and prevent the further spread of aquatic invasive species.
