2006 Preseason Stocked Trout Residency Study By

• A total of 135 stream sections less than 15 meters wide were electrofished in spring, 2006, at randomly selected stocking points ten to twenty days after stocking to determine the percentages of trout remaining within approximately 300 meters of the stocking points • Trout recaptures were adjusted upward for measured capture efficiency (67.19%) to provide an estimate of the trout remaining at each sampling point expressed as a percentage of the total stocked at each location. • Trout recaptures were significantly and positively correlated with the survey crews’ confidence ratings that they were electrofishing where the trout had actually been stocked. More trout were recaptured at those sites with higher confidence ratings. • A total of 259 sample sites were included in the analysis. They were classified into excellent (>90%), good (75%-89.9%), fair (40%-74.9%), poor (10%-39.9%) and very poor (<9.9%) adjusted recapture rates. There was no discernable pattern of trout recaptures (as rated) statewide. Excellent to very poor sites occurred throughout the state with a few exceptions. No samples were collected in sub-basins 14 and 15, the Genesee River and Lake Erie drainages. • Seventy-two percent of the sites sampled had fair or better recaptures of stocked trout. Twenty-eight percent of the sites sampled had poor or very poor recaptures of stocked trout. • There were no occurrences of very poor recaptures in sub-basins 2, 5, 6, 7, 11, 13, an