TY - RPRT TI - Breakpoint analysis and relations of nutrient and turbidity stressor variables to macroinvertebrate integrity in streams in the Crawford-Mammoth Cave Uplands Ecoregion, Kentucky, for the development of nutrient criteria AU - Angela S. Crain AU - Brian J. Caskey PY - 2010 DO - 10.3133/sir20105164 UR - https://pubs.usgs.gov/publication/sir20105164 ID - sir20105164 ER -