We have a small city lake near me (55 miles) that has OSS. Don't know where they came from, they were just there one year and have been a nuisance since. LMB will not control numbers because of amount of shallow water so the state stocked saugeye and has for 9 years. Got some great Saugeye, great crappie, LMB really never came back and population structure of OSS remains the same.