In situ exposure to wastewater effluent reduces survival but has little effect on the behaviour or physiology of an invasive Great Lakes fish

McCallum, Erin S.; Du, Sherry; Vaseghi‐Shanjani, Maryam; Choi, Jasmine A.; Warriner, Theresa R.; Sultana, Tamanna; Scott, Graham R.; Balshine, Sigal

doi:10.1016/j.aquatox.2016.12.017

Cited by 24 publications

(21 citation statements)

References 76 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We found effects on survival for exposure to EE2 only during early development to 96 hpf -a period that includes late gastrulation and early organogenesis -indicating a higher sensitivity to estrogen exposure during this life period. Similarly, the only effects of the WwTW effluent exposure on survival rate (reduced) occurred for early life stages (48 to 96 hpf), supporting previous findings (50,(53)(54)(55)(56)(57) and at a time when the chorion is most permeable to chemical uptake (58). The reduced rates of hatching in the exposure to EE2 and the full strength (100%) effluent also concur with other studies (59)(60)(61) and may relate to the inhibitory effects of estrogens and estrogen receptor modulators on proteolytic hatching enzymes [i.e.…”

Section: Survival and Hatching Successsupporting

confidence: 88%

Health Effects and Life Stage Sensitivities in Zebrafish Exposed to an Estrogenic Wastewater Treatment Works Effluent

et al. 2021

View full text Add to dashboard Cite

A wide range of health effects in fish have been reported for exposure to wastewater treatment work (WwTW) effluents including feminized responses in males. Most of these exposure studies, however, have assessed acute health effects and chronic exposure effects are less well established. Using an Estrogen Responsive Element-Green Fluorescent Protein (ERE-GFP)-Casper transgenic zebrafish, we investigated chronic health effects and life stage sensitivities for exposure to an estrogenic WwTW effluent and the synthetic estrogen 17α-ethinylestradiol (EE2). Exposure to the WwTW effluent (at full strength;100%) and to 10 ng/L (nominal) EE2 delayed testis maturation in male fish but accelerated ovary development in females. Exposure to 50% and 100% effluent, and to 10 ng/L EE2, also resulted in skewed sex ratios in favor of females. Differing patterns of green fluorescent protein (GFP) expression, in terms of target tissues and developmental life stages occurred in the ERE-GFP- zebrafish chronically exposed to 100% effluent and reflected the estrogenic content of the effluent. gfp and vitellogenin (vtg) mRNA induction were positively correlated with measured levels of steroidal estrogens in the effluent throughout the study. Our findings illustrate the importance of a fish’s developmental stage for estrogen exposure effects and demonstrate the utility of the ERE-GFP zebrafish for integrative health analysis for exposure to estrogenic chemical mixtures.

show abstract

Section: Survival and Hatching Successsupporting

confidence: 88%

Health Effects and Life Stage Sensitivities in Zebrafish Exposed to an Estrogenic Wastewater Treatment Works Effluent

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Many aquatic ecosystems near to urban areas, such as streams or lagoons, are often the final receptors of urban waste and industrial effluents (Garcia et al, 2010). Anthropogenic waste contains a mixture of contaminants that can cause physiological and functional alterations, and even reduced survival, in fishes (McCallum et al, 2016;Ndiaye et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Environmental contamination alters the intestinal microbial community of the livebearer killifish Phalloceros caudimaculatus

Nolorbe-Payahua

Freitas

Roesch

et al. 2020

Heliyon

View full text Add to dashboard Cite

Intestinal microbiota perform important functions for the health of fishes. Knowing the microbial composition and evaluating the possible effects caused by anthropogenic pollution in the intestinal microbiota of fish populations might represent an important step in defining microbial biomarkers for water pollution. This study evaluated the impact of environmental contamination on the gut microbiota of the livebearer killifish Phalloceros caudimaculatus. The 16S survey using the V4 region of the 16S rRNA gene was used to characterize and compare the microbiota of two P. caudimaculatus populations from streams with different levels of environmental contamination in Rio Grande, RS, Brazil. Twelve bacterial operational taxonomic units (OTUs) (around one-third of the total) were shared between both fish populations. They represent the core microbiota of the gut in this species. The dominant phyla were Protebacteria and Firmicutes, with more than 80% of relative abundance. The dominant genus was Burkholderia with more than 35% of the relative abundance irrespective of the environmental condition. We detected a lower microbial diversity (Shannon index and observed OTUs) in fish from the polluted stream compared to the reference stream. The PERMANOVA analysis showed that the intestinal microbial communities from fish living in the polluted stream were distinct from those found in the reference stream (p < 0.05). Finally, we identified Luteolibacter, Methylocaldum and Rhodobacter genera, which correlated strongly with the polluted stream. These taxa might represent potential microbial biomarkers of exposure to environmental contaminants in the guts of fish. Confirmation of these findings in other polluted environments might allow the development of a microbiota-based screening approach for environmental evaluation in ecotoxicological studies in aquatic ecosystems.

show abstract

“…The metabolic rates measured in this study were in the range of those of other fishes that are closely related [50]. Round Goby showed no increase in routine metabolic rate when exposed to effluent and is thought to be quite tolerant of MWWTP effluent [51]. In contrast, bluegill sunfish had an increased FMR when exposed to effluent [52].…”

Section: Discussionmentioning

confidence: 58%

Impacts on Metabolism and Gill Physiology of Darter Species (Etheostoma spp.) That Are Attributed to Wastewater Effluent in the Grand River

et al. 2020

View full text Add to dashboard Cite

The effluent from municipal wastewater treatment plants is a major point source of contamination in Canadian waterways. The improvement of effluent quality to reduce contaminants, such as pharmaceuticals and personal care products, before being released into the environment is necessary to reduce the impacts on organisms that live in the river downstream. Here, we aimed to characterize the metabolic and gill physiological responses of rainbow (Etheostoma caeruleum), fantail (Etheostoma flabellare), and greenside (Etheostoma blennioides) darters to the effluent in the Grand River from the recently upgraded Waterloo municipal wastewater treatment plant. The routine metabolism of darters was not affected by effluent exposure, but some species had increased maximum metabolic rates, leading to an increased aerobic scope. The rainbow darter aerobic scope increased by 2.2 times and the fantail darter aerobic scope increased by 2.7 times compared to the reference site. Gill samples from effluent-exposed rainbow darters and greenside darters showed evidence of more pathologies and variations in morphology. These results suggest that darters can metabolically adjust to effluent-contaminated water and may also be adapting to the urban and agricultural inputs. The modification and damage to the gills provide a useful water quality indicator but does not necessarily reflect how well acclimated the species is to the environment due to a lack of evidence of poor fish health.

show abstract

In situ exposure to wastewater effluent reduces survival but has little effect on the behaviour or physiology of an invasive Great Lakes fish

Cited by 24 publications

References 76 publications

Health Effects and Life Stage Sensitivities in Zebrafish Exposed to an Estrogenic Wastewater Treatment Works Effluent

Health Effects and Life Stage Sensitivities in Zebrafish Exposed to an Estrogenic Wastewater Treatment Works Effluent

Environmental contamination alters the intestinal microbial community of the livebearer killifish Phalloceros caudimaculatus

Impacts on Metabolism and Gill Physiology of Darter Species (Etheostoma spp.) That Are Attributed to Wastewater Effluent in the Grand River

Contact Info

Product

Resources

About