Wastewater alters feeding rate but not vitellogenin level of Gammarus fossarum (Amphipoda)

Ganser, Barbara; Bundschuh, Mirco; Werner, Inge; Homazava, Nadzeya; Moschet, Christoph; Kienle, Cornelia

doi:10.1016/j.scitotenv.2018.12.035

Cited by 8 publications

(10 citation statements)

References 42 publications

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“…VTG secretion, unique to female sh species, has been widely used in different studies as a marker of feminisation in different male sh species due to estrogenic inuence of contaminants in water bodies. 78,85,[125][126][127][128][129][130][131][132][133] Assessment of VTG expression is oen used in conjunction with other estrogenicity bioassays as a complementary method for assessment of endocrine disruption within aquatic fauna. Such application was employed by Geraudie et al (2017) and Ganser et al (2019) in their studies where YES assay was used to evaluate estogenicity of water samples in addition to the VTG assay.…”

Section: Detected Estrogenic Activity In All Matricesmentioning

confidence: 99%

“…78,85,[125][126][127][128][129][130][131][132][133] Assessment of VTG expression is oen used in conjunction with other estrogenicity bioassays as a complementary method for assessment of endocrine disruption within aquatic fauna. Such application was employed by Geraudie et al (2017) and Ganser et al (2019) in their studies where YES assay was used to evaluate estogenicity of water samples in addition to the VTG assay. 85,133 Unexpectedly, while Ganser et al 85 found signicant induction of estrogenic signals from the YES assay, VTG level was not signicantly induced in the male shes sampled.…”

Section: Detected Estrogenic Activity In All Matricesmentioning

confidence: 99%

“…Such application was employed by Geraudie et al (2017) and Ganser et al (2019) in their studies where YES assay was used to evaluate estogenicity of water samples in addition to the VTG assay. 85,133 Unexpectedly, while Ganser et al 85 found signicant induction of estrogenic signals from the YES assay, VTG level was not signicantly induced in the male shes sampled. On the contrary, Geraudie et al 133 discovered signicant increase in VTG levels complemented by positive estrogenic activity as detected by the YES assay even though both studies reported similar ranges of E2 equivalence in the sample mixtures (Tables 2 and 3).…”

Section: Detected Estrogenic Activity In All Matricesmentioning

confidence: 99%

“…This notion is supported by ndings of Guo et al (2019), where samples from passive and grab samples provided not only similar estrogenic activities, but similar results in other endpoints investigated. 77 This was also similar to the ndings of Ganser et al (2019), where grab samples were taken on two separate days, while passive sampling using solid phase extraction, was use to obtain samples in the time period between those two days. 85 Although the passive sampler could not detect estrogenicity at the initial time point, the detection of estrogenic activity in the grab sample may be as a result of possible high concentration of analyte in the grab sample, which needs time to reach the same levels in a passive sampler.…”

Section: Grab Vs Passive Sampling and Estrogenicity In Context Of Wwtpmentioning

confidence: 99%

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Monitoring of emerging contaminants of concern in the aquatic environment: a review of studies showing the application of effect-based measures

et al. 2021

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Section: Detected Estrogenic Activity In All Matricesmentioning

confidence: 99%

Section: Detected Estrogenic Activity In All Matricesmentioning

confidence: 99%

Section: Detected Estrogenic Activity In All Matricesmentioning

confidence: 99%

Section: Grab Vs Passive Sampling and Estrogenicity In Context Of Wwtpmentioning

confidence: 99%

See 2 more Smart Citations

Monitoring of emerging contaminants of concern in the aquatic environment: a review of studies showing the application of effect-based measures

et al. 2021

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“…Ganser et al. (2019) reported no change in vitellogenin levels of G. fossarum when exposed to WW, but only males were tested. The potential for reduced fecundity in response to chemical pollution indicated by our study may have population‐level consequences (Hoffmann & Hercus, 2000), yet this endpoint is rarely used in ecotoxicological studies.…”

Section: Discussionmentioning

confidence: 99%

Size‐dependent sensitivity of stream amphipods indicates population‐level responses to chemical pollution

2021

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Global change assessments have typically ignored synthetic chemical pollution, despite the rapid increase of pharmaceuticals, pesticides, and industrial chemicals in the environment. The paucity of research on the ecological effects of these micropollutants undermines our efforts to address the freshwater biodiversity crisis. Understanding the responses of individual organisms to chemical pollution should help address this knowledge gap because individual‐level effects can cascade across populations, communities, and ecosystems with devastating consequences. Inputs of treated municipal wastewater are a major source of micropollutants in receiving environments. Here, we assessed population and individual‐level influences of treated wastewater on freshwater gammarid amphipods (Gammarus spp.) in Swiss lowland streams in situ and tested effects of a micropollutant mixture on individual Gammarus fossarum using a common garden laboratory experiment. We hypothesised that population‐level effects of wastewater are mediated through asymmetric sensitivities of juvenile and adult gammarids to chemical pollutants. We expected that life‐stage specific sensitivities would reflect allometric theory relating body size to a wide range of organismal characteristics, including metabolism, growth, and mortality. At the population level (i.e. field survey), we observed greatly reduced abundances of juvenile gammarids downstream of the wastewater discharge in three of the six sites surveyed, indicating the potential for demographic effects of pollution. At the individual level in a field transplant experiment, we found that the presence of wastewater led to a steeper positive relationship between gammarid body size and leaf consumption. In the laboratory experiment, we found that micropollutants had negative effects on consumption and growth rates, but a positive effect on survival. Differences in the relationship between gammarid body size and performance were subtle across treatments, although flatter slopes in growth appear to be a consistent response to chemical pollution. Faster growth rates appeared to be connected with reduced survival, placing individuals in control treatments and/or with smaller body size at greatest risk of mortality. Notably, juvenile gammarids had faster growth rates and lower survival than adults when exposed to micropollutants. Our results demonstrate the potential for negative impacts of micropollutants in freshwater ecosystems. However, the results also show that organismal responses to chemical pollutants can be complex, whereby impacts at the individual level may act counter‐intuitively to population‐level dynamics. This highlights the need for more realistic experiments to better assess how organismal responses depend on life stage and body size, and how individual‐level effects propagate to higher levels of biological organisation. Our study shows how allometric theory can be used to examine the effects of stressors on underlying organismal biology, population demographics, and link with...

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In Situ Reproductive Bioassay with Caged Gammarus fossarum (Crustacea): Part 2—Evaluating the Relevance of Using a Molt Cycle Temperature‐Dependent Model as a Reference to Assess Toxicity in Freshwater Monitoring

Lopes

Chaumot

Xuereb

et al. 2020

Enviro Toxic and Chemistry

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Active biomonitoring approaches are now recognized as relevant for monitoring water contamination and toxicity. Nevertheless, due to the confounding influence of variable and uncontrolled environmental conditions such as temperature, biological markers measured on transplanted individuals to assess water quality are difficult to interpret. The purpose of the present study is to propose a methodology for adapting a laboratory test of chronic sublethal toxicity based on the molting cycle of Gammarus fossarum to in situ assays. To this end, we 1) adapted the molt cycle temperature‐dependent model developed in Part 1 (Chaumot et al. 2020, this issue) to the fluctuating temperatures measured in the field; 2) assessed the predictive power of our approach as a “reference value” from gammarids caged in 9 nonimpacted sites at different seasons; and 3) tested the relevance of our tool to interpret in situ reproductive bioassays from 5 upstream/downstream studies and a large‐scale deployment in 12 sites. Our approach based on modeling the progress of gammarid molting cycle as a function of temperature appeared to be a relevant and robust tool for interpreting in situ observations in different environmental contexts in time and space. By avoiding using a “reference” or upstream situation as a baseline from which water quality could be assessed, this approach provides a real added value to water quality diagnosis in biomonitoring programs. Environ Toxicol Chem 2020;39:678–691. © 2019 SETAC

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Wastewater alters feeding rate but not vitellogenin level of Gammarus fossarum (Amphipoda)

Abstract: This study was conducted in accordance with national and institutional guidelines for the protection of human subjects and animal welfare.

Cited by 8 publications

References 42 publications

Monitoring of emerging contaminants of concern in the aquatic environment: a review of studies showing the application of effect-based measures

Monitoring of emerging contaminants of concern in the aquatic environment: a review of studies showing the application of effect-based measures

Size‐dependent sensitivity of stream amphipods indicates population‐level responses to chemical pollution

In Situ Reproductive Bioassay with Caged Gammarus fossarum (Crustacea): Part 2—Evaluating the Relevance of Using a Molt Cycle Temperature‐Dependent Model as a Reference to Assess Toxicity in Freshwater Monitoring

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