Therefore, our estimates not only exclude some Lake Superior fishing expenditures, but underestimate the impact of boat anglers which, on average, spend more than stream anglers. As a result, our economic impacts estimates for non-charter recreational anglers are conservative. One factor that lowers the MN DNR estimates is that winter and tributary fishing are not included in the summer creel survey that we used. This still does not explain the discrepancy. We do not support or defend either estimates.
Economic impacts vary considerable depending on which estimate of angler effort is used.
While the estimates presented here may not be as consistent or as precise as we'd like, they do provide a range of estimates based on the best information available. St. Paul MN 55108. The University of Minnesota is an equal opportunity employer and educator. U.S. Department of the Interior. Fish and Wildlife Service.