Revitalization of a northcentral Texas river, as indicated by benthic macroinvertebrate communities

dc.acquisition-srcDownloaded from-Web of Scienceen_US
dc.call-noen_US
dc.contract-noen_US
dc.contributor.authorDavis JRen_US
dc.contributor.otherHydrobiologiaen_US
dc.date.accessioned2010-02-15T17:18:09Z
dc.date.available2010-02-15T17:18:09Z
dc.date.issued1997 Mar 14en_US
dc.degreeen_US
dc.description95-117en_US
dc.description-otheren_US
dc.description.abstractMacrobenthic communities were surveyed in 1987-88 as part of a comprehensive study of fish kills and water quality in the upper Trinity River. The purpose was to characterize macrobenthic integrity in relation to ambient and storm-associated water quality and other environmental factors. No physical habitat features were found to be substantially limiting to aquatic life. Water and sediment quality generally were good, and macrobenthic communities typically were healthy. Ecological conditions were vastly improved compared to the recent past, attributable mainly to decreased contaminant loading from wastewater treatment plants and reduced incidence of raw sewage bypassing. Nonetheless, some impact was evident in certain reaches. Deleterious effects at Beach St. evidently resulted from pesticides derived from urban runoff. Slight impacts by dissolved metals were suggested for Grand Prairie and Continental Ave.; possible sources included urban runoff and wastewater treatment plant effluents. Moderate impacts at S. Loop 12 were attributed to low-flow toxicity induced by a wastewater treatment plant discharge; ammonia and chlorine were considered primarily responsible, with metals and pesticides possibly involved. Macrobenthic communities were somewhat degraded from Trinidad to US 79, due to storm-related stresses by DO depression, pesticides, and metallic oxides. Overall impacts were relatively slight on a long-term basis, however, and a high aquatic life use was attained at most sites. The degree of macrobenthic integrity was considered remarkable for an effluent-dominated system with such extensive urbanization in the watersheden_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.historyen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/23590
dc.latitudeen_US
dc.locationen_US
dc.longitudeen_US
dc.notesTimes Cited: 1ArticleEnglishDavis, J. RTEXAS NAT RESOURCE CONSERVAT COMMISS,POB 13087,MC-150,AUSTIN,TX 78711Cited References Count: 53XR916SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDSDORDRECHTen_US
dc.placeen_US
dc.publisheren_US
dc.relation.ispartofseries51244.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesen_US
dc.subjectCOMMUNITIESen_US
dc.subjectcommunityen_US
dc.subjectDISCHARGEen_US
dc.subjectFISHen_US
dc.subjecthabitaten_US
dc.subjectIMPACTen_US
dc.subjectmacrobenthosen_US
dc.subjectmetalsen_US
dc.subjectPESTICIDESen_US
dc.subjectPLANTen_US
dc.subjectpoint source impactsen_US
dc.subjectriveren_US
dc.subjectRUNOFFen_US
dc.subjectstormwater impactsen_US
dc.subjectSTRESSen_US
dc.subjectTEXASen_US
dc.subjecttoxicityen_US
dc.subjectTrinity Riveren_US
dc.subjectWATERen_US
dc.subjectwater qualityen_US
dc.titleRevitalization of a northcentral Texas river, as indicated by benthic macroinvertebrate communitiesen_US
dc.typeJournalen_US
dc.universityen_US
dc.vol-issue346()en_US

Files