TY - RPRT TI - Evaluation of light penetration on Navigation Pools 8 and 13 of the Upper Mississippi River AU - Shawn Giblin AU - Kraig Hoff AU - Jim Fischer AU - Terry Dukerschein PY - 2010 UR - https://pubs.usgs.gov/publication/ltrmp2010T001 ID - ltrmp2010T001 ER -