Widespread occurrence of intersex in black basses (Micropterus spp.) from U.S. rivers, 1995–2004

Aquatic Toxicology, Journal Year: 2009, Volume and Issue: 95(1), P. 60 - 70

Published: Aug. 14, 2009

Language: Английский

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Intersex in teleost fish: Are we distinguishing endocrine disruption from natural phenomena?

General and Comparative Endocrinology, Journal Year: 2013, Volume and Issue: 192, P. 25 - 35

Published: April 18, 2013

Language: Английский

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Reproductive health of bass in the Potomac, USA, drainage: Part 1. Exploring the effects of proximity to wastewater treatment plant discharge

Environmental Toxicology and Chemistry, Journal Year: 2008, Volume and Issue: 28(5), P. 1072 - 1083

Published: Dec. 22, 2008

Intersex (specifically, testicular oocytes) has been observed in male smallmouth bass (SMB; Micropterus dolomieu) and other centrarchids the South Branch of Potomac River, U.S.A., forks Shenandoah during past five years. This condition often is associated with exposure to estrogenic endocrine-disrupting chemicals some fish species, but such their sources have yet be identified Potomac. In an attempt better understand plausible causes this condition, we investigated reproductive health sampled up- downstream wastewater treatment plant (WWTP) effluent point on River Maryland, U.S.A. Smallmouth were from Conococheague Creek Monocacy largemouth (LMB; salmoides) collected near Blue Plains WWTP mainstem River. Chemical analyses compounds captured passive samplers at these locations also conducted. A high prevalence intersex (82-100%) was SMB all sites regardless collection area. lower (23%) LMB site. When compared, significant differences noted only Conococheague. Differences included factor, gonadosomatic index, plasma vitellogenin concentration, estrogen testosterone ratio. general, effluent, storm-water runoff, agriculture more prevalent sampling sites. An exception atrazine its metabolites, which present greater concentrations upstream It appears that proximity WWTPs may influence watershed, inputs likely contribute widespread, incidence oocytes.

Language: Английский

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Assessment of the acute toxicity of the organochlorine pesticide endosulfan in Cichlasoma dimerus (Teleostei, Perciformes)

Ecotoxicology and Environmental Safety, Journal Year: 2011, Volume and Issue: 74(4), P. 1065 - 1073

Published: March 8, 2011

Language: Английский

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Effects of Legacy Persistent Organic Pollutants (POPs) in Fish—Current and Future Challenges

Fish physiology, Journal Year: 2013, Volume and Issue: unknown, P. 53 - 140

Published: Jan. 1, 2013

Language: Английский

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Contaminants of emerging concern presence and adverse effects in fish: A case study in the Laurentian Great Lakes

Environmental Pollution, Journal Year: 2018, Volume and Issue: 236, P. 718 - 733

Published: Feb. 14, 2018

Language: Английский

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Chemical contaminants, health indicators, and reproductive biomarker responses in fish from rivers in the Southeastern United States

The Science of The Total Environment, Journal Year: 2007, Volume and Issue: 390(2-3), P. 538 - 557

Published: Dec. 1, 2007

Language: Английский

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Decreases in Condition and Fecundity of Freshwater Fishes in a Highly Polluted Reservoir

Water Air & Soil Pollution, Journal Year: 2009, Volume and Issue: 210(1-4), P. 231 - 242

Published: Oct. 15, 2009

Language: Английский

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Effects of β‐endosulfan on the growth and reproduction of zebrafish (Danio rerio)

Environmental Toxicology and Chemistry, Journal Year: 2011, Volume and Issue: 30(11), P. 2525 - 2531

Published: Aug. 13, 2011

Abstract Because of persistent organic pollution in aquatic environments, the widely used organochlorine pesticide endosulfan, which is a potential endocrine disruptor, expected to pose significant risk organisms. In present study, we explored endocrine‐disrupting β‐endosulfan by investigating its effect on growth, reproduction, plasma vitellogenin, and organ histology adult zebrafish. We found that, although did not significantly affect growth zebrafish, it greatly decreased hatching rate, even at concentration as low 10 ng/L. Interestingly, decrease rate was highly correlated with pathological alterations testes. Additionally, values gonadosomatic index were reduced female zebrafish treated 200 ng/L β‐endosulfan, also closely associated ovarian histological changes. More importantly, increase level vitellogenin observed all male fish β‐endosulfan. Based these findings, conclude that severely affects reproductive function synthesis liver, thus, has serious disruption Environ. Toxicol. Chem. 2011;30:2525–2531. © 2011 SETAC

Language: Английский

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Contaminants of legacy and emerging concern in largescale suckers (Catostomus macrocheilus) and the foodweb in the lower Columbia River, Oregon and Washington, USA

The Science of The Total Environment, Journal Year: 2014, Volume and Issue: 484, P. 344 - 352

Published: Jan. 24, 2014

Language: Английский

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