In 2014, Northern Waters Land Trust (NWLT), in partnership with the Minnesota Land Trust, launched the Clean Water Critical Habitat (CWCH) program. CWCH focuses on protecting critical shoreland and forested parcels, either through a conservation easement or fee title acquisitions. Funding is provided from the Outdoor Heritage Fund as part of the Clean Water, Land and Legacy Amendment.
Fisheries research shows that healthy watersheds with intact forests are fundamental to good fish habitat and that conservation easements on sensitive shoreland and private forests are an effective approach to protecting water quality. Reaching a 75% level of protection — meaning maintaining natural landscape or forested land along 75% of the shoreline, is our goal as science shows that the lake has a high probability of sustaining clean water and healthy lake ecosystem to support fish and other wildlife.
NWLT’s Clean Water Critical Habitat program targets parcels within select tullibee refuge lakes or watersheds within the lakes region, with the goal of reaching 75% protection.
Tullibee are the proverbial “canary in the coal mine” fish species due to their sensitivity to even slight changes in water temperature and oxygen levels. Tullibee are an important forage fish for walleye, northern pike, muskies, and lake trout. Degraded watershed health, poor shoreline development, and climate warming are consent threats to tullibee. Preserving natural, undisturbed land cover and well managed shorelines offer the best chance to protect tullibee and other related fish populations.
There are 68 cold water lakes that are considered “refuge lakes” for tullibee in Minnesota and 38 of these are found in the Aitkin, Cass, Crow-Wing and Hubbard counties — a region supported by the Northern Waters Land Trust. This lakes area attracts residents and visitors alike to enjoy their natural beauty, fishing, and numerous outdoor recreational opportunities — most of which center around our pristine waters.
It’s important to realize that these program steps take many months, and realistically, even years to facilitate.
Current lakes/watersheds targeted with this grant-based program:
Aitkin County: Cedar Lake, Long Lake, Round Lake
Cass County: Girl Lake, Little Boy Lake, Long Lake, Roosevelt Lake, Wabedo Lake
Crow Wing County: Borden Lake, Island/Loon Lake, Ossawinamakee Lake, Whitefish Lake
Hubbard County: Big Mantrap Lake, Big Sand Lake, Kabekona Lake
Special consideration is also given for land that connects to existing protected land, or along waterways in or out of these key watersheds.
Tullibee require cold, well oxygenated waters – a condition most common in lakes with deep water and healthy surrounding watersheds.
When habitats of these fish change, we are warned about three major threats to Minnesota’s clean water and sports fisheries:
- Degraded watershed health
- Extensive shoreline development
- Climate warming