Inhibition of egg production in zebrafish by fluoxetine and municipal effluents: A mechanistic evaluation

Aquatic Toxicology, Journal Year: 2009, Volume and Issue: 95(4), P. 320 - 329

Published: May 5, 2009

Language: Английский

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Effects of Endocrine Disrupters on Sexual, Gonadal Development in Fish

Sexual Development, Journal Year: 2009, Volume and Issue: 3(2-3), P. 136 - 151

Published: Jan. 1, 2009

Steroid sex hormones play an important role in the sexual differentiation of fish. Thus, it is not surprising that chemical contaminants with steroid-like activities were considered as responsible for unusual occurrence gonadal intersex conditions and other aberrations feral In this review, we give overview about field data summarise categorise experimental evidence links disruption development gonochoristic fish to contaminations by endocrine disrupting chemicals. A comprehensive on laboratory studies using water-borne exposures histopathological analysis given. Parameters ranging from simple quantitative characteristics such ratio, number reversed fish, gonadosomatic index (GSI) detailed morphometric analyses have been considered. Categorisation indicates 2 major groups chemicals apparently conserved effects across species, i.e. estrogenic/anti-androgenic or androgenic/anti-estrogenic compounds. Since gross morphological parameters histological are often first measured campaigns sampling review supports critical evaluation present future confirmation rejection causative exposure Furthermore, combination molecular endpoints processed will be useful deduce mechanistic information potential

Language: Английский

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Implications of Persistent Exposure to Treated Wastewater Effluent for Breeding in Wild Roach (Rutilus rutilus) Populations

Environmental Science & Technology, Journal Year: 2011, Volume and Issue: 45(4), P. 1673 - 1679

Published: Jan. 5, 2011

Feminized responses are widespread in wild populations of roach, Rutilus rutilus, living UK rivers, and some these have been shown to arise as a consequence exposure wastewater treatment works (WwTW) effluent discharges the endocrine disrupting chemicals (EDCs) they contain. The causation ovotestis condition however, has yet be established. Furthermore, impact long-term WwTW effluents on reproductive fitness fish is not known, this information crucial for population level effect assessments. We undertook chronic roach treated estrogenic up 3.5 years assess principally effects subsequent fitness, determined through parentage analysis offspring from competitive breeding study. In generating study we found that full strength until sexual maturity resulted sex reversal almost all males population; 98% exposed were phenotypic females, containing ovaries. 50% dilution contained (21% male roach) was absent control population. studies, applying DNA microsatellites parentage, show presumptive females bred normally, albeit absence nonexposed but putative sex-reversed contributed poorly, if at all, population, depending competition. These novel findings add new dimension assessments populations.

Language: Английский

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Effect-directed analysis (EDA) of Danube River water sample receiving untreated municipal wastewater from Novi Sad, Serbia

The Science of The Total Environment, Journal Year: 2017, Volume and Issue: 624, P. 1072 - 1081

Published: Dec. 27, 2017

Language: Английский

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Chemical contaminants, health indicators, and reproductive biomarker responses in fish from the Colorado River and its tributaries

The Science of The Total Environment, Journal Year: 2007, Volume and Issue: 378(3), P. 376 - 402

Published: April 6, 2007

Language: Английский

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Biological effects and bioaccumulation of steroidal and phenolic endocrine disrupting chemicals in high-back crucian carp exposed to wastewater treatment plant effluents

Environmental Pollution, Journal Year: 2011, Volume and Issue: 162, P. 325 - 331

Published: Dec. 20, 2011

Language: Английский

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Immunological responses, histopathological finding and disease resistance of blue mussel (Mytilus edulis) exposed to treated and untreated municipal wastewater

Aquatic Toxicology, Journal Year: 2007, Volume and Issue: 82(1), P. 1 - 14

Published: Feb. 5, 2007

Language: Английский

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A multi-level biological approach to evaluate impacts of a major municipal effluent in wild St. Lawrence River yellow perch (Perca flavescens)

The Science of The Total Environment, Journal Year: 2014, Volume and Issue: 497-498, P. 307 - 318

Published: Aug. 17, 2014

Language: Английский

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Effects and bioaccumulation of 17β-estradiol and 17α-ethynylestradiol following long-term exposure in crucian carp

Ecotoxicology and Environmental Safety, Journal Year: 2014, Volume and Issue: 112, P. 169 - 176

Published: Nov. 19, 2014

Language: Английский

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Temporal Variation in the Estrogenicity of a Sewage Treatment Plant Effluent and Its Biological Significance

Environmental Science & Technology, Journal Year: 2007, Volume and Issue: 42(9), P. 3421 - 3427

Published: Oct. 12, 2007

Daily variation in the estrogenic activity of effluent released by a modern sewage treatment plant (STP) was measured and its effects on physiology, behavior, reproductive success male fish were evaluated. As an estrogen receptor binding assay, daily this both high extremely variable (42 ± 25.4 [mean SD] ng 17β-estradiol (E2) equivalents/L; n = 18). Liver VTG mRNA expression fathead minnows (FHM) covaried with assay estimates, suggesting that these fluctuations are biologically relevant. Tests which exposed FHMs to either fluctuating levels E2, constant concentration E2 (time-weighted reflect average concentrations), or control (no E2) demonstrated while detrimental spawning success, fact varied manner without additional influence. The variability effluent's estrogenicity suggests studies concerned STP effluents should collect multiple samples then test them appropriate time-weighted basis.

Language: Английский

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