Congener‐specific polychlorinated biphenyl patterns in eggs of aquatic birds from the lower laguna madre, texas

Mora, Miguel Ángel Candel

doi:10.1002/etc.5620150624

Cited by 35 publications

(9 citation statements)

References 24 publications

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“…These CBs can cause decreases in uterine weights [52] and increases in pentoxyresorufin-O-deethylase activity that may affect estrogen levels in the blood [47]. The noncoplanar CBs 138, 153, and 180 were predominant CBs in starling eggs in the current study, as they were in previous studies of bird eggs [53,54]. These CBs accounted for 45% of total congeners measured in eggs collected from the Area 9 building complex.…”

Section: Contaminant Accumulationsupporting

confidence: 69%

European starling (Sturnus vulgaris): Avian model and monitor of polychlorinated biphenyl contamination at a Superfund site in Southern Illinois, USA

Arenal

Halbrook

Woodruff

2004

Enviro Toxic and Chemistry

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Accumulation and effects of polychlorinated biphenyls (PCBs) in avian species were evaluated at a Superfund site located at Crab Orchard National Wildlife Refuge (IL, USA). European starlings (Sturnus vulgaris) were monitored at nest boxes constructed at each of two study and two reference sites. During the breeding season, starling productivity and adult provisioning behavior were monitored. At 15 d after hatch, chicks and adults were collected for contaminant and biomarker analyses. Chicks and adults were necropsied. ethoxyresorufin-O-deethylase (EROD) activity was measured in liver tissue, and polychlorinatedbiphenyl (PCB; Aroclor 1254) and 34 chlorinated biphenyl (CB) congener concentrations were measured in carcasses. Polychlorinated biphenyl and CB concentrations also were measured in eggs that failed to hatch. Mean Aroclor 1254 and quantified CB concentrations were greater (p < 0.001) in eggs that failed to hatch, 15-d-old chicks, and adults collected from PCB-contaminated sites (hereafter PCB sites) compared to those collected from reference sites. The EROD activity was greater (p = 0.005) in 15-d-old chicks, but not adults (p = 0.972), collected from PCB sites compared to those collected from reference sites. No differences were found among study and reference sites in number of eggs laid or percent of eggs hatched; however, reduced nest provisioning behavior and decreased chick survival were observed at PCB sites. Polychlorinated biphenyl concentrations measured in samples collected from the PCB sites are similar to concentrations previously associated with adverse effects in avian species. Other avian species utilizing these sites also may be exposed to PCBs with associated adverse effects. This study demonstrates that starling nestlings are good biological monitors of local contamination and continued monitoring may provide useful data for evaluating the effectiveness of proposed remediation.

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Section: Contaminant Accumulationsupporting

confidence: 69%

European starling (Sturnus vulgaris): Avian model and monitor of polychlorinated biphenyl contamination at a Superfund site in Southern Illinois, USA

Arenal

Halbrook

Woodruff

2004

Enviro Toxic and Chemistry

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“…As demonstrated in other studies, the most common PCB congeners in colonial waterbird eggs from Galveston Bay were 153, 138, 180, and 118. This pattern seems to be the most commonly observed in fish-eating birds [32][33][34]. We did not observe any differences in PCB congener profiles or in degree of chlorination among eggs of the three species studied.…”

Section: Polychlorinated Biphenylssupporting

confidence: 61%

“…This suggests that the PCB congeners in these species' diets may be similar, or that the three species metabolize PCBs in a similar way. Polychlorinated biphenyl patterns may be determined more by individual dietary factors than by species differences in the bioaccumulation of PCBs [28,33]. Similar PCB congener patterns among cormorants from different locations also suggest that metabolism may be responsible for the common pattern observed, or that the PCB sources in the diet are similar, despite differences in locations.…”

Section: Polychlorinated Biphenylsmentioning

confidence: 98%

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

Frank

Mora

Sericano

et al. 2001

Enviro Toxic and Chemistry

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Eggs 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 TCDD-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 sites.

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“…The distribution of congeners in house sparrows were similar to congener distribution found in great tit eggs and nestlings (Dauwe et al, 2003) as well as Caspian terns (Hydroprogne caspia) and great blue herons (Ardea herodias), (Mora, 1996). Furthermore, the predominance of higher chlorinated congeners found in the present study is also typical for species high in the food chain like polar bears and glaucous gulls (Gabrielsen et al, 1995;Kannan et al, 2005).…”

Section: Discussionsupporting

confidence: 86%

Steroids in house sparrows (Passer domesticus): Effects of POPs and male quality signalling

Nossen

Ciesielski

Dimmen

et al. 2016

Science of The Total Environment

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At high trophic levels, several environmental contaminants, such as polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs) and polybrominated flame retardants (PBDEs) have been found to affect endocrinological processes governing growth and reproduction. Less attention has been paid to species at lower trophic levels, and it is presently unclear whether or not the lower levels of contaminants observed at lower trophic levels are able to exert negative effects on important endocrinological process governing growth and reproduction.The aim of the present study was to use the house sparrow (Passer domesticus) as a low trophic level model species to study the effects of environmental contaminants on endocrinology. We analysed the levels of some selected PCBs , PBDEs [TS]) in adult house sparrows from a population on the island Leka, mid Norway. Plasma samples were analysed for steroid hormones by gas chromatography tandem mass spectrometry (GC-MS/MS) and liver samples were analysed for environmental contaminants by gas chromatography-electron capture detection (GC-ECD) and gas chromatography mass spectrometry (GC-MS). It was hypothesized that POPs may have endocrine disrupting effects on the local house sparrow population and can thus interfere with the steroid hormone homeostasis.Bivariate correlations revealed negative relationships between PCB-118 and βE2 and p,p'-DDE, ∑OCPs and E1 among female house sparrows. Among male sparrows, bivariate correlations indicted positive relationships between DHT levels and PCB-118, BDE-100 and ∑PCBs. Furthermore, positive relationships were found between AN and TS levels and beak length, as well as ornamental traits such as badge size category and area of the total badge size in males. Although sparrows are in the mid-range trophic levels, the present study indicates that POPs may affect steroid homeostasis in house sparrows, in particular for females. For males, circulating steroid levels appears to be more associated with biometric parameters related to elaborate traits.

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Congener‐specific polychlorinated biphenyl patterns in eggs of aquatic birds from the lower laguna madre, texas

Cited by 35 publications

References 24 publications

European starling (Sturnus vulgaris): Avian model and monitor of polychlorinated biphenyl contamination at a Superfund site in Southern Illinois, USA

European starling (Sturnus vulgaris): Avian model and monitor of polychlorinated biphenyl contamination at a Superfund site in Southern Illinois, USA

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

Steroids in house sparrows (Passer domesticus): Effects of POPs and male quality signalling

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