Reproductive responses of male fathead minnows exposed to wastewater treatment plant effluent, effluent treated with XAD8 resin, and an environmentally relevant mixture of alkylphenol compounds

Barber, Larry B.; Lee, Kathy E.; Swackhamer, Deborah L.; Schoenfuss, Heiko L.

doi:10.1016/j.aquatox.2007.01.003

Cited by 99 publications

(69 citation statements)

References 46 publications

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“…Decreased GSI was reported in male fish exposed to increased concentrations of treated sewage effluents (Diniz et al 2005). In other studies, exposure of male Lake trout (Salvelinus mamaycush) to EE2 caused a significant decrease in GSI, due to inhibition of testicular development (Werner et al 2003), whereas significant increase in both GSI and LSI was observed in male fathead minnows exposed to wastewater effluents (Barber et al 2007). The greater GSI in male fish from all sewage ponds more likely resulted from some aspect of the chemical composition in the ponds, and it appears that EDCs were not the only factor influencing anatomical endpoints because oestrogenic compounds would reduce GSI.…”

Section: Discussionmentioning

confidence: 92%

Assessment of pollution in sewage ponds using biomarker responses in wild African sharptooth catfish (Clarias gariepinus) in Tanzania

et al. 2009

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The interactive effects of mixed pollutants in sewage wastewater on biomarker responses were investigated using wild male African sharptooth catfish (Clarias gariepinus) in Morogoro, Tanzania. A total of 58 fish were used, of which 21 were from Mindu dam (reference site) and 22, 9 and 10 from Mafisa, Mazimbu and Mzumbe sewage ponds, respectively. Liver somatic index (LSI) and gonadosomatic index (GSI) were significantly greater (two- to threefold) and (five- to sixfold), respectively, in fish from all sewage ponds. Haemoglobin concentration and gill filament 7-ethoxyresurufin O-deethylase (EROD) activities were significantly higher (1.2-fold and twofold, respectively) in fish from Mzumbe sewage ponds than in fish from Mindu dam, whereas liver EROD activity was significantly higher in fish from Mzumbe and Mafisa sewage ponds (5-fold). A HPLC method for determination of enzymatically formed p-nitrophenyl-glucuronide (PNPG) was developed and applied to measure UDP-glucuronosyl transferase (UGT) activities that was significantly higher in fish from all sewage ponds (2-2.5-fold) than in fish from Mindu dam. Kinetic characteristics and assay dependence of UGT were studied with microsomal preparations. Metallothionein (MT) content was significantly lower (three- to fourfold) in fish from sewage ponds than in fish from Mindu dam, and corresponded with cumulative levels of cadmium, lead and mercury. Condition factor, vitellogenin (Vtg), acetylcholinesterase (AChE) activities in plasma, eyes and brain, haematocrit, plasma protein and cytosolic glutathione S-transferase (GST) activities were comparable in fish from sewage ponds and Mindu dam. Although specific pollutants other than the metals were not identified by chemical analysis, application of a suite of biomarkers in C. gariepinus demonstrated that all sewage ponds were contaminated by pollutants of public health concern.

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Section: Discussionmentioning

confidence: 92%

Assessment of pollution in sewage ponds using biomarker responses in wild African sharptooth catfish (Clarias gariepinus) in Tanzania

et al. 2009

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“…In addition, exposure to low-levels of some surfactants can cause disruption of endocrine functions in fi sh, such as reproduction (Barber et al, 2007). Sub-lethal concentrations of an anionic detergent were reported to have damage the catfi sh barbell taste buds (Zeni & Caligiuri, 1992;Zeni et al, 1995).…”

Section: Introductionmentioning

confidence: 99%

Toxicity of Two Household Liquid Soaps on Poecilia reticulata Peters, 1859

Lawal¹,

Samuel²,

Mogekwu³

et al. 2013

Braz. J. Aquat. Sci. Technol.

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(MFLS) were evaluated for the Poecilia reticulata in laboratory bioassays. The acute toxicity was evaluated for 96 h while the sub-lethal effects of the two surfactants on the biochemical parameters of P. reticulata were investigated for a 6 -day exposure period. The derived toxicity indices showed that the FLS (96hLC 50 = 0.062ml/L) was 1.37 times more toxic than the MFLS (96hLC 50 = 0.085ml/L) against P. reticulata. Analysis of variance (ANOVA) showed signifi cant difference (p<0.05) in the quantal response of P. reticulata to different concentrations of FLS and MFLS at 24, 48, 72 and 96 h of exposure. The mean tissue protein, triglyceride, glucose and cholesterol ranged from (21.04 -48.54 and 18.06 -58.54mg/dl), (87.43 -154.95 and 85.63 -144.28mg/dl), (33.95 -55.03 and 32.76 -53.15mg/dl) and (37.30 -65.38 and 37.12 -58.11mg/dl) for FLS and MFLS respectively. ANOVA showed signifi cant difference (p<0.05) in the biochemical response of P. reticulata to FLS and MFLS. The implications of these fi ndings are highlighted.

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“…Solvent concentrations did not exceed 1.8 lL ethanol/L, well below solvent concentrations used in previous experiments, where no effect had been found (Schoenfuss et al 2002;Bistodeau et al 2006;Barber et al 2007) and well below the no-effects concentration for ethanol reported by Yokota et al (2001) for medaka. The reconstituted test water for all exposure groups was designed to simulate the major water-quality characteristics (anions and cations) in the Rio Grande at Isleta, New Mexico, USA, and was prepared by mixing specific amounts of mineral salts with deionized water in large polyethylene tanks (Buhl 2002).…”

Section: Experimental Designmentioning

confidence: 70%

Do Laboratory Species Protect Endangered Species? Interspecies Variation in Responses to 17β-Estradiol, a Model Endocrine Active Compound

Jorgenson

Buhl

Bartell

et al. 2014

Arch Environ Contam Toxicol

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Although the effects of estrogens on model laboratory species are well documented, their utility as surrogates for other species, including those listed as endangered, are less clear. Traditionally, conservation policies are evaluated based on model organism responses but are intended to protect all species in an environment. We tested the hypothesis that the endangered Rio Grande silvery minnow (Hybognathus amarus) is more vulnerable to endocrine disruption-as assessed through its larval predator-escape performance, survival, juvenile sex ratios, and whole-body vitellogenin concentration-than the commonly used toxicological model species fathead minnow (Pimephales promelas) and the bluegill sunfish (Lepomis macrochirus). Fish were exposed concurrently for 21 days to the model endocrine active compound (EAC) 17ß-estradiol (E2) at 10 ng E2/L and 30 ng E2/L in a flow-through system using reconstituted water that simulated the physicochemical conditions of the Middle Rio Grande in New Mexico, USA. No significant differences were observed between the fathead and silvery minnow in larval predator-escape response or juvenile sex ratio. Rio Grande silvery minnow survival decreased significantly at day 14 compared with the other two species; by day 21, both cyprinid species (silvery minnow and fathead minnow) exhibited a significant decrease in survival compared with bluegill sunfish, a member of the family Centrarchidae. Male Rio Grande silvery minnow showed a significant increase in whole-body vitellogenin concentration in the 10 ng/L treatment, whereas fathead minnow and bluegill sunfish showed no significant increases in vitellogenin concentrations across treatments. Our study showed response differences to estrogen exposures between the two cyprinid species and further divergence in responses between the families Cyprinidae and Centrarchidae. These results suggest that commonly used laboratory model organisms may be less sensitive to EACs than the endangered Rio Grande silvery minnow. However, this study supports the continued use of surrogate species for the beneficial implementation of water-quality regulations for the protection of threatened and endangered species if phylogenetic relationships are taken into consideration.

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Reproductive responses of male fathead minnows exposed to wastewater treatment plant effluent, effluent treated with XAD8 resin, and an environmentally relevant mixture of alkylphenol compounds

Cited by 99 publications

References 46 publications

Assessment of pollution in sewage ponds using biomarker responses in wild African sharptooth catfish (Clarias gariepinus) in Tanzania

Assessment of pollution in sewage ponds using biomarker responses in wild African sharptooth catfish (Clarias gariepinus) in Tanzania

Toxicity of Two Household Liquid Soaps on Poecilia reticulata Peters, 1859

Do Laboratory Species Protect Endangered Species? Interspecies Variation in Responses to 17β-Estradiol, a Model Endocrine Active Compound

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