Persistent organochlorine pollutants in eggs of colonial waterbirds from Galveston Bay and East Texas, USA

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dc.acquisition-srcDownloaded from-Web of Scienceen_US
dc.call-noen_US
dc.contract-noen_US
dc.contributor.authorFrank DSen_US
dc.contributor.authorMora MAen_US
dc.contributor.authorSericano JLen_US
dc.contributor.authorBlankenship ALen_US
dc.contributor.authorKannan Ken_US
dc.contributor.authorGiesy JPen_US
dc.contributor.otherEnvironmental Toxicology and Chemistryen_US
dc.date.accessioned2010-02-15T17:16:50Z
dc.date.available2010-02-15T17:16:50Z
dc.date.issued2001 Maren_US
dc.degreeen_US
dc.description608-617en_US
dc.description-otheren_US
dc.description.abstractEggs of neotropic cormorants (Phalacrocorax brasilianus), black-crowned night herons (Nycticorax nycticorax), and great egrets (Ardea alba) nesting on several locations in Galveston Bay (TX, USA) and at two control sites outside the bay were collected during April-May 1996 and analyzed for chlorinated pesticides, PCBs, polychlorinated dibenzo-p-dioxins, and polychlorinated dibenzofurans. Additionally, concentrations of 2,3,7,8-tetrachlorodibenzo-p-dioxin equivalents (TCDD-EQs) were determined by use of relative potency factors (TEQs) or the H4IIE-luc bioassay TCDD-EQs. Concentrations of 1,1,-dichloro-2,2-bis(p-chlorophenyl)ethylene (DDE) were greater in eggs of neotropic cormorants from Alexander Island (mean = 1,040 ng/g wet wt) in the Houston Ship Channel (Houston, TX, USA) and in those from Telfair Island (mean = 1,460 ng/g wet wt), a reference location outside the bay, than in most locations inside the bay (mean range = 119-453 ng/g wet wt). Mean PCB concentrations were greater in eggs of neotropic cormorants from Alexander Island (mean = 5,720 ng/g wet wt) than in eggs of cormorants from areas farther away from the ship channel, including two reference sites outside the bay (mean range = 404-3,140 ng/g wet wt). The TCDD was the main dioxin congener detected in eggs from all locations within Galveston Bay. Instrumental TEQs in eggs ranged from 67 pg/g wet weight at control sites to 452 pg/g wet weight at Alexander Island. Concentrations of TCDD-EQs determined in the H4IIE assay were correlated with instrumental TEQs and were greater in eggs of cormorants from islands within the bay, although these were farther away from the ship channel. Overall, concentrations of DDE, PCBs, TCDD, and TODD-EQs were less than the threshold levels known to affect reproduction. However, some eggs contained concentrations of total PCBs or DDE greater than what would elicit adverse effects on birds. No identifiable deformities or abnormalities were detected in embryos collected from all sitesen_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.historyen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/23409
dc.latitudeen_US
dc.locationen_US
dc.longitudeen_US
dc.notesTimes Cited: 6ArticleEnglishMora, M. ATexas A&M Univ, US Geol Survey, TAMU 2258, College Stn, TX 77843 USACited References Count: 44457YH1010 NORTH 12TH AVE, PENSACOLA, FL 32501-3367 USAPENSACOLAen_US
dc.placeen_US
dc.publisheren_US
dc.relation.ispartofseries51057.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesen_US
dc.subjectGalveston Bay,Texas,USAen_US
dc.subjectpolychlorinated biphenylsen_US
dc.subjectdioxinsen_US
dc.subjectchlorinated pesticidesen_US
dc.subjectcolonial waterbirdsen_US
dc.subjectCORMORANTS PHALACROCORAX-AURITUSen_US
dc.subjectCROWNED NIGHT-HERONSen_US
dc.subjectFISH-EATING BIRDSen_US
dc.subjectGREAT-LAKESen_US
dc.subject2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN EQUIVALENTSen_US
dc.subjectENVIRONMENTAL CONTAMINANTSen_US
dc.subjectREPRODUCTIVE SUCCESSen_US
dc.subjectPCBsen_US
dc.subjectPESTICIDESen_US
dc.subjectCONGENERSen_US
dc.titlePersistent organochlorine pollutants in eggs of colonial waterbirds from Galveston Bay and East Texas, USAen_US
dc.typeJournalen_US
dc.universityen_US
dc.vol-issue20(3)en_US

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