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This is a brief update on yellow perch population dynamics in Indiana waters of Lake Michigan and near-shore fish community characteristics based on results of 2007 sampling by the Aquatic Biology and Fisheries Center at Ball State University. Data should be considered provisional, as revisions may be made before publication of our progress report due June 30, 2008. The progress report will be more extensive, including data on age and growth, mortality, etc. for 2007. We hope this update, though brief, will be an interesting and useful source of preliminary information to the Indiana Department of Natural Resources and others. 2 Nighttime June to August bottom trawl sampling was conducted along the 5 m contour at three index sites in Indiana waters of Lake Michigan in 2007 (Appendix 1). Additionally, gill net sampling was performed at the 10 m and 15 m depth contours due north from the midpoint of the trawl zone at each site. Sampling methods are described in detail by Lauer and Doll (2007). Sixteen species were sampled in 2007 (Appendix 2). Additional sampling was conducted in the spring and fall as part of a Lak