LEADER 01708nam  2200385 a 450 
001 9910697628803321
005 20081020091659.0
035   $a(CKB)5470000002390677
035   $a(OCoLC)262829014
035   $a(EXLCZ)995470000002390677
100   $a20081020d1982      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 00$aBiota and biological principles of the aquatic environment$b[electronic resource]
210  1$a[Reston, Va.] :$cU.S. Dept. of the Interior, Geological Survey,$d1982.
215   $avi, A1-A49 pages $cDJVU, image file
225 1 $aBriefing papers on water quality
225 1 $aGeological Survey circular ;$v848-A
300   $aTitle from .djvu (viewed on Oct. 2, 2008).
320   $aIncludes bibliographical references.
327   $aWhy biology in water-quality studies? / by Phillip E. Greeson -- Stream biology / by Keith V. Slack -- Phytoplankton / by George A. McCoy -- Periphyton / by George A. McCoy -- Drift organisms in streams / by Keith V. Slack -- Family Chironomidae (Diptera) / by Larry J. Tilley -- Influences of water temperature on aquatic biota / by Ray J. Hoffman and Robert C. Averett -- Stream channelization: effects on stream fauna / by Susan S. Hahn.
606   $aAquatic biology
606   $aWater quality biological assessment
615  0$aAquatic biology.
615  0$aWater quality biological assessment.
712 02$aGeological Survey (U.S.)
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910697628803321
996   $aBiota and biological principles of the aquatic environment$93138380
997   $aUNINA