Partitioning of PCBs in the muscle and reproductive tissues of paddlefish,Polyodon spathula, at the falls of the Ohio River

Gundersen, Deke T.; Pearson, William D.

doi:10.1007/bf01239652

Cited by 18 publications

(14 citation statements)

References 9 publications

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“…However, PCBs levels recorded in this study were less than the concentration reported by Naso et al (2003) in similar food habits of birds like yellow-legged herring gull (3,343 ng/g) and blackheaded gull (2,079). These levels were well below food and drug administration's action limit of 2,000 ng/g (Gundersen and Pearson 1992) and also less than the no observable adverse effect concentrations (NOAEC) limit in the US for bald eagle (Wiemeyer et al 1993).…”

Section: Resultsmentioning

confidence: 99%

Organochlorine Pesticides and Polychlorinated Biphenyls in Various Tissues of Waterbirds in Nalabana Bird Sanctuary, Chilika Lake, Orissa, India

Dhananjayan¹

2012

Bull Environ Contam Toxicol

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In order to understand whether organochlorine pesticides and polychlorinated biphenyls (PCBs) are responsible for the mortality of waterbirds in Nalaban bird sanctuary in Chilika Lake, the current investigation was carried out in tissues of 11 individuals comprising 7 species of birds. One or more residues were detected in all the tissues of birds analysed. Concentration of ∑HCH, ∑DDT, and ∑PCBs were ranged from below detectable level (BDL)-811 ng/g, BDL-1,987 ng/g and BDL-1,027 ng/g respectively. PCBs levels were less than the food and drug administration's (FDA) action limits. Although varying levels of residues were detected among tissues, they do not appear to be responsible for the mass mortality of waterfowl. However, the need for additional research is heightened when considering that some of the birds are classified as a globally protected species by the international bodies.

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Section: Resultsmentioning

confidence: 99%

Organochlorine Pesticides and Polychlorinated Biphenyls in Various Tissues of Waterbirds in Nalabana Bird Sanctuary, Chilika Lake, Orissa, India

Dhananjayan¹

2012

Bull Environ Contam Toxicol

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“…Previously published results from gonad histology of fish from this study, indicated that all female fish analyzed for plasma OCs were sexually immature and only 5 of the male fish analyzed were mature (Feist et al 2004). Comparisons between OC levels in blood plasma and tissues in sexuallymature adult sturgeon should be separated by sex since it has been shown in other wildlife species that OC levels are dependent on sex in mature individuals (Gundersen and Pearson 1992;Borrell et al 1995;Bernhoft et al 1997).…”

Section: Resultsmentioning

confidence: 99%

Using Blood Plasma for Monitoring Organochlorine Contaminants in Juvenile White Sturgeon, Acipenser transmontanus, from the Lower Columbia River

Gundersen

Webb

Fink

et al. 2008

Bull Environ Contam Toxicol

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Organochlorine (OC) pesticide concentrations in blood plasma samples from 88 juvenile white sturgeon collected from the lower Columbia River were measured and compared to plasma sex steroid and OC tissue levels previously measured in corresponding fish. Significant squared correlation coefficients between summation operator DDT concentrations in sturgeon plasma and gonads and livers were 0.37 and 0.32, respectively. Significant negative correlations between plasma testosterone concentration and plasma Sigma DDT concentration in male fish (r(2)=0.26), plasma 17beta estradiol concentration and plasma Sigma DDT concentration in female fish (r(2)=0.38) and condition factor and plasma Sigma DDT concentration in all fish were found (r(2)=0.17). These results suggest that blood plasma may be a suitable nondestructive method for monitoring adult sturgeon population for persistent OC contaminants.

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“…Fish and Wildlife Service found whole‐body PCB concentrations in channel catfish at 3.5 μg/g in the vicinity of the Ohio River Islands National Wildlife Refuge [4]. Gundersen and Pearson [5] found PCB concentrations in the roe of paddlefish at about two times the U.S. Food and Drug Administration action limit (>4 μg/g). These concentrations exceed those where reproductive effects in similar species have been found [6].…”

Section: Introductionmentioning

confidence: 99%

Biomarker response and health of polychlorinated biphenyl‐ and chlordane‐contaminated paddlefish from the Ohio River Basin, USA

Gundersen

Miller

Mischler

et al. 2000

Enviro Toxic and Chemistry

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Abstract-Fifty paddlefish (Polyodon spathula) collected from two sites on the Ohio River and from one site on the Cumberland River, USA, were examined to determine gonad polychlorinated biphenyl (PCB) and chlordane concentrations, amounts of plasma sex steroids (testosterone and estradiol), hepatic microsomal ethoxyresorufin-O-deethylase (EROD) activity, and the presence of immunoreactive cytochrome P450 1A (CYP1A) protein. Percent hatch and liver, spleen, and kidney histology were also determined. Gonad PCB and chlordane concentrations were significantly higher in Ohio River paddlefish than in Cumberland River paddlefish. Gonad PCB and chlordane concentration and gonad percent lipid were correlated in Ohio River paddlefish. Five of 10 Ohio River egg samples exceeded the Food and Drug Administration's action limit for chlordane (0.30 g/g). Polychlorinated biphenyl congenerspecific analysis detected predominantly the tetra-, penta-, and hexachlorobiphenyls in paddlefish testes. Plasma testosterone levels were significantly lower in males collected from the upper Ohio River site than those collected from the lower part of the river. There was no measurable hepatic microsomal EROD activity in any of the 50 paddlefish collected from the three sites. Western blotting analysis confirmed that a rabbit antitrout CYP1A1 IgG antibody did not recognize a CYP1A protein in paddlefish liver microsomes. Percent hatch was not significantly different in eggs collected from the Cumberland (88-96%) and Ohio Rivers (90-95%). Histological analysis of liver, spleen, and kidney detected the presence of hepatic steatosis and hemosiderosis, splenic lymphoid cell depletion, and hyperplasia of interrenal and chromaffin tissues. Immunosuppression, hepatic metabolic disorders, and altered neuroendocrine function may be occurring in Ohio River paddlefish. Results presented here suggest that organochlorine exposure may be jeopardizing the long-term health of Ohio River paddlefish and that additional investigation of contaminant effects on immune system function and hormone levels in paddlefish is warranted.

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Partitioning of PCBs in the muscle and reproductive tissues of paddlefish,Polyodon spathula, at the falls of the Ohio River

Cited by 18 publications

References 9 publications

Organochlorine Pesticides and Polychlorinated Biphenyls in Various Tissues of Waterbirds in Nalabana Bird Sanctuary, Chilika Lake, Orissa, India

Organochlorine Pesticides and Polychlorinated Biphenyls in Various Tissues of Waterbirds in Nalabana Bird Sanctuary, Chilika Lake, Orissa, India

Using Blood Plasma for Monitoring Organochlorine Contaminants in Juvenile White Sturgeon, Acipenser transmontanus, from the Lower Columbia River

Biomarker response and health of polychlorinated biphenyl‐ and chlordane‐contaminated paddlefish from the Ohio River Basin, USA

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