Here is the presentation I had prepared. The information we collected was more about the habitat availability than the fish. Slide 6 (Looking at habitat availability) shows the water temperature profile on the left and the dissolved oxygen profile on the right. Each profile was collected in the deepest portion of the main basin, intended to identify the stratification zones (epilimnion, metalimnion, and hypolimnion) established throughout the water column along with the associated temperatures and dissolved oxygen levels. For both graphs, the water surface is at the top and going deeper as you proceed down the y-axis. Townsend lake had a similar temperature profile to the other lakes but was slightly cooler, even though it was only a few degrees of difference. The oxygen profiles do differ, with suitable oxygen through to about 26 ft of water and then quickly decreasing after that in Townsend Lake. For most species in Michigan, minimum suitable oxygen levels are typically about 3 mg/L (the red line). We three of the lakes go below that level before reaching the maximum depth where water temperatures are cold. Maceday Lake maintains high levels of dissolved oxygen pretty much through out the whole water column, even down to 100 ft. This is why Maceday Lake can support lake trout and splake, as well as cisco.
Christopher M. Finazzo
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Michigan Constitution section 6:
Every person has a right to keep and bear arms for the defense of himself and the state.