TY - RPRT TI - Identifying nutrient reference sites in nutrient-enriched regions-Using algal, invertebrate, and fish-community measures to identify stressor-breakpoint thresholds in Indiana rivers and streams, 2005-9 AU - Brian J. Caskey AU - Aubrey R. Bunch AU - Megan E. Shoda AU - Jeffrey W. Frey AU - Shivi Selvaratnam AU - Robert J. Miltner PY - 2013 DO - 10.3133/sir20125243 UR - https://pubs.usgs.gov/publication/sir20125243 ID - sir20125243 ER -