LEADER 02063nam 2200445 a 450 001 9910699664003321 005 20230902161851.0 035 $a(CKB)5470000002404295 035 $a(OCoLC)671738691 035 $a(EXLCZ)995470000002404295 100 $a20101026d2010 ua 0 101 0 $aeng 135 $aurmn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aBreakpoint 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$b[electronic resource] /$fby Angela S. Crain and Brian J. Caskey ; prepared in cooperation with the U.S. Environmental Protection Agency and the Kentucky Energy and Environment Cabinet 210 1$aReston, Va. :$cU.S. Dept. of the Interior, U.S. Geological Survey,$d2010. 215 $a1 online resource (vi, 29 pages) $cillustrations, map 225 1 $aScientific investigations report ;$v2010-5164 300 $aTitle from PDF title screen (USGS, viewed Oct. 25, 2010). 320 $aIncludes bibliographical references. 410 0$aScientific investigations report ;$v2010-5164. 606 $aWater quality$zKentucky 606 $aNutrient pollution of water$zKentucky 606 $aTurbidity 615 0$aWater quality 615 0$aNutrient pollution of water 615 0$aTurbidity. 700 $aCrain$b Angela S$01383004 701 $aCaskey$b B. J$g(Brian J.)$01388621 712 02$aUnited States.$bEnvironmental Protection Agency. 712 02$aKentucky.$bEnergy and Environment Cabinet. 712 02$aGeological Survey (U.S.) 801 0$bGPO 801 1$bGPO 906 $aBOOK 912 $a9910699664003321 996 $aBreakpoint 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$93462381 997 $aUNINA