Record Display for the EPA National Library Catalog

RECORD NUMBER: 275 OF 1721

OLS Field Name OLS Field Data
Main Title Causal analysis of biological impairment in Long Creek : a sandy-bottomed stream in coastal southern Maine.
CORP Author Environmental Protection Agency, Washington, DC. National Center for Environmental Assessment.
Publisher National Center for Environmental Assessment, Office of Research and Devleopment, U.S. Environmental Protection Agency,
Year Published 2007
Report Number EPA/600/R-06/065F
Stock Number PB2008-104486
OCLC Number 457980468
Subjects Water--Pollution--Environmental aspects--Maine. ; Watersheds--Maine.
Additional Subjects Water pollution ; Watersheds ; Biological effects ; Maine ; Dissolved oxygen ; Water quality ; Temperature ; Case studies ; Land use ; Urban areas ; Resource management ; Toxicity ; Brook trout ; Macroinvertebrates ; Plecoptera ; Ephemeroptera
Internet Access
Description Access URL
http://oaspub.epa.gov/eims/eimscomm.getfile?p_download_id=470459
http://cfpub.epa.gov/ncea/cfm/recordisplay.cfm?deid=167325
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=P1003MPO.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJBD ARCHIVE EPA 600-R-06-065F Headquarters Library/Washington,DC 10/27/2009
EJBD  EPA 600-R-06-065F Headquarters Library/Washington,DC 10/27/2009
ELBD RPS EPA 600-R-06-065F repository copy AWBERC Library/Cincinnati,OH 10/17/2014
ELBD  EPA 600-R-06-065F AWBERC Library/Cincinnati,OH 06/28/2010
NTIS  PB2008-104486 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 04/04/2019
Collation xii, 138, [80] p. : col. ill., charts, maps ; 28 cm.
Abstract
This case study presents results from a complex causal assessment of a biologically impaired, urbanized coastal watershed located primarily in South Portland, Maine, USAthe Long Creek watershed. This assessment serves as an example implementation of U.S. Environmental Protection Agency Stressor Identification guidance. Four specific biological effects defining impairment and seven candidate causes of impairment were chosen and evaluated at three impaired sites along Long Creek. Biological effects include (1) decreased Ephemeroptera, Plecoptera, and Trichoptera (EPT) generic richness, (2) increased percent non-insect taxa individuals relative to total macroinvertebrate abundance, (3) increased Hilsenhoff Biotic Index (HBI) score, and (4) brook trout absence. Decreased dissolved oxygen, altered flow regime, decreased large woody debris, increased temperature, and increased toxicity due to ionic strength were identified as probable causes of impairment. The implications associated with interactions among probable causes are discussed in terms of this case study and causal assessment in general.
Notes
"December 2007". "EPA/600/R-06/065F". Includes bibliographical references.
Contents Notes
"This case study presents results from a complex causal assessment of a biologically impaired, urbanized coastal watershed located primarily in South Portland, Maine, USA the Long Creek watershed. This assessment serves as an example implementation of U.S. Environmental Protection Agency Stressor Identification guidance. Four specific biological effects defining impairment and seven candidate causes of impairment were chosen and evaluated at three impaired sites along Long Creek. Biological effects include (1) decreased Ephemeroptera, Plecoptera, and Trichoptera (EPT) generic richness, (2) increased percent non-insect taxa individuals relative to total macroinvertebrate abundance, (3) increased Hilsenhoff Biotic Index (HBI) score, and (4) brook trout absence. Decreased dissolved oxygen, altered flow regime, decreased large woody debris, increased temperature, and increased toxicity due to ionic strength were identified as probable causes of impairment. The implications associated with interactions among probable causes are discussed in terms of this case study and causal assessment in general."--Abstract.