02250nam 2200457Ia 450 991069771220332120081120155257.0(CKB)5470000002391855(OCoLC)275130732(EXLCZ)99547000000239185520081120d2002 ua 0engurmn||||a||||txtrdacontentcrdamediacrrdacarrierEffects of hardened low-water crossings on stream habitat, water quality, and periphyton in four streams at the Fort Polk Military Reservation, Vernon Parish, Louisiana, October 1998 through November 1999[electronic resource] /by Roland W. Tollett, Barbara W. Bryan, and C. Frederick Bryan ; prepared in cooperation with the U.S. Army Joint Readiness Training Center and Fort PolkBaton Rouge, La. :U.S. Dept. of the Interior, U.S. Geological Survey,2002.vi, 70 pages DJVU, image fileWater-resources investigations report ;02-4291Title from title screen (viewed Nov. 20, 2008).Includes bibliographical references (pages 59-62).Effects of hardened low water crossings on stream habitat, water quality, and periphyton in four streams at the Fort Polk Military Reservation, Vernon Parish, Louisiana, October 1998 through November 1999Water qualityLouisianaFort PolkWaterPollutionLouisianaFort PolkPeriphytonLouisianaFort PolkWater qualityWaterPollutionPeriphytonTollett Roland W1396633Bryan Barbara W1396634Bryan C. Fred(Charles Fred)1396635United States.Department of the Army.Joint Readiness Training Center.Fort Polk (La.)Geological Survey (U.S.)GPOGPOBOOK9910697712203321Effects of hardened low-water crossings on stream habitat, water quality, and periphyton in four streams at the Fort Polk Military Reservation, Vernon Parish, Louisiana, October 1998 through November 19993457051UNINA