TY - RPRT TI - Ages and lengths of yellow perch Perca flavescens , white perch Morone americana , and lake whitefish Coregonus clupeaformis in commercial trap nets in western Lake Erie AU - Martin A. Stapanian AU - William Edwards AU - Michael J. Porta AU - Michael T. Bur AU - Patrick Kocovsky PY - 2009 UR - https://pubs.usgs.gov/publication/70161734 ID - 70161734 ER -