The South Dakota Game, Fish and Parks invites anglers to participate in an online, walleye fishing challenge.   The Midwest Walleye Challenge, hosted by Anglersatlas.com and the MyCatch app, is open from April 1-June 29, 2025. States included in the challenge are South Dakota, Nebraska, Iowa, Indiana, Illinois and Michigan.   This online challenge is part of a multi-state research project aimed to assess the walleye fishery across the Midwest. This is a Citizen Science event, so anglers reporting all of their catches is very important. Reporting all catches ensures that the data collected are representative of the angler's actual fishing effort and qualifies them for more prizes.   The Midwest Walleye Challenge is $25 to enter, but upon entering their first fishing outing, participants will receive a $20 gift certificate to Discount Tackle.