Flushing away the future: The effects of wastewater treatment plants on aquatic invertebrates

Water Research, Journal Year: 2023, Volume and Issue: 243, P. 120388 - 120388

Published: July 19, 2023

Language: Английский

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Cryptic Species in Ecotoxicology

Environmental Toxicology and Chemistry, Journal Year: 2023, Volume and Issue: 42(9), P. 1889 - 1914

Published: June 14, 2023

The advent of genetic methods has led to the discovery an increasing number species that previously could not be distinguished from each other on basis morphological characteristics. Even though there been exponential growth publications cryptic species, such are rarely considered in ecotoxicology. Thus, particular question ecological differentiation and sensitivity closely related is addressed. Tackling this question, however, key importance for evolutionary ecology, conservation biology, and, particular, regulatory At same time, use with (known or unknown) diversity might a reason lack reproducibility ecotoxicological experiments implies false extrapolation findings. Our critical review includes database literature search through which we investigated how many most frequently used assessments show evidence diversity. We found high proportion reports indicating overlooked diversity, especially invertebrates. In terrestrial aquatic realms, at least 67% 54% commonly respectively, were identified as complexes. issue less prominent vertebrates, complexes 27% 6.7% vertebrates. further exemplified why different histories may significantly determine species' ecology pollutants. This turn have major impact results tests consequently, outcome environmental risk assessments. Finally, provide brief guideline deal practically studies general its implementation assessment procedures particular. Environ Toxicol Chem 2023;42:1889-1914. © 2023 Authors. Environmental Toxicology Chemistry published by Wiley Periodicals LLC behalf SETAC.

Language: Английский

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A novel approach for the assessment of invertebrate behavior and its use in behavioral ecotoxicology

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 897, P. 165418 - 165418

Published: July 9, 2023

Language: Английский

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Infection with acanthocephalans increases tolerance of Gammarus roeselii (Crustacea: Amphipoda) to pyrethroid insecticide deltamethrin

Environmental Science and Pollution Research, Journal Year: 2023, Volume and Issue: 30(19), P. 55582 - 55595

Published: March 10, 2023

Crustacean amphipods serve as intermediate hosts for parasites and are at the same time sensitive indicators of environmental pollution in aquatic ecosystems. The extent to which interaction with parasite influences their persistence polluted ecosystems is poorly understood. Here, we compared infections Gammarus roeselii two species Acanthocephala, Pomphorhynchus laevis, Polymorphus minutus, along a gradient Rhine-Main metropolitan region Frankfurt am Main, Germany. Prevalence P. laevis was very low unpolluted upstream reaches (P ≤ 3%), while higher prevalence 73%) intensities up 9 individuals were found further downstream-close an effluent large wastewater treatment plant (WWTP). Co-infections minutus occurred 11 individuals. Highest P 9% one per amphipod host maximum intensity recorded. In order assess whether infection affects survival habitats, tested sensitivity infected uninfected towards pyrethroide insecticide deltamethrin. We infection-dependent difference within first 72 h, effect concentration (24 h EC50) 49.8 ng/l 26.6 G. roeselii, respectively. Whereas final abundance might partially explain high results acute toxicity test suggest beneficial acanthocephalan sites. A strong accumulation pollutants could sink pesticide exposure host. Due lack co-evolutionary history between behavioral manipulation (unlike co-evolved gammarids), predation risk by fish remains same, explaining local prevalence. Thus, our study exemplifies how organismic can favor under chemical pollution.

Language: Английский

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One like all? Behavioral response range of native and invasive amphipods to neonicotinoid exposure

Environmental Pollution, Journal Year: 2024, Volume and Issue: 356, P. 124235 - 124235

Published: May 25, 2024

Native and invasive species often occupy similar ecological niches environments where they face comparable risks from chemical exposure. Sometimes, are phylogenetically related to native species, e.g. may come the same family have potentially sensitivities environmental stressors due phylogenetic conservatism similarity. However, empirical studies that aim understand nuanced impacts of chemicals on full range closely rare, yet would help comprehend patterns current biodiversity loss turnover. Behavioral sublethal endpoints increasing ecotoxicological interest. Therefore, we investigated behavioral responses (i.e., change in movement behavior) four dominant amphipod Rhine-Main area (central Germany) when exposed neonicotinoid thiacloprid. Moreover, beyond species-specific responses, interactions (e.g. parasitation with Acanthocephala) play a crucial role shaping behavior, considered these infections our analysis. Our findings revealed distinct baseline behaviors thiacloprid Notably, Gammarus fossarum exhibited biphasic changes hyperactivity at low concentrations decreased higher concentrations. Whereas pulex, roeselii Dikerogammarus villosus, showed no or weaker responses. This partly explain why G. disappears chemically polluted regions while other persist there certain degree. But it also shows potential pre-exposure habitat influence because habituation occurs, be harmful individuals habitat. The observed were further influenced by acanthocephalan parasites, which altered behavior enhanced response results underscore intricate diverse nature among highlighting their unique vulnerabilities anthropogenically impacted freshwater ecosystems.

Language: Английский

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Population Genomics Reveals Small‐Scale Metapopulation Structure of Two Strictly Aquatic Keystone Species in a Recently Restored Urban River System (Emscher, Germany)

Ecology and Evolution, Journal Year: 2025, Volume and Issue: 15(4)

Published: April 1, 2025

ABSTRACT Urbanization and the resulting modifications of freshwater ecosystems can play an important role in shaping metapopulation structure dynamics aquatic organisms. Ecological restoration aims at improving river by reducing or removing anthropogenic stressors habitat fragmentation, facilitating natural dispersal among population patches. However, success such ecological measures is not guaranteed, for many functionally but smaller organisms, improved connectivity difficult to assess. Here, genetic markers help assessing small‐scale identifying persisting gene flow barriers. In this study used high‐resolution two ecologically amphipod species, Gammarus pulex fossarum , heavily urbanized Emscher catchment Germany. This was strongly degraded polluted over a century has been restored past decades. For both strictly we analyzed mitochondrial cytochrome c oxidase I (COI) sequences as well nuclear genome‐wide single nucleotide polymorphism (SNP) data. We detected strong within which mainly driven affiliation, wastewater, large in‐stream barriers, recent recolonization stream sections. fully explained these factors, indicating that eco‐evolutionary factors priority effects, adaptation, biotic interactions structure. Furthermore, our data show mito‐nuclear discordance species with regard detailed also presence possible cryptic G. . indicate diverging lineages (Gp‐C Gp‐E) represent only one region. Our shows how support assessment thus evaluate restoration.

Language: Английский

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Acclimation and transgenerational plasticity support increased cadmium tolerance in Gammarus populations exposed to natural metal contamination in headwater streams

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 903, P. 166216 - 166216

Published: Aug. 9, 2023

Considering long-term population effects of chronic exposure to contaminants remains limited in ecological risk assessment. Field evidence that multigenerational influences organisms' sensitivity is still scarce, and mechanisms have yet be elucidated the environmental context. This study focuses on crustacean Gammarus fossarum, for which an increased tolerance cadmium (Cd) has previously been reported a naturally low-contaminated headwater stream. Our objectives were investigate whether Cd common phenomenon populations, elucidate nature its intergenerational transmission. For this, we carried out in-depth situ characterization (gammarids' caging) levels nine populations regional scale, as well laboratory maintenance cross-breeding contaminated uncontaminated populations. Acute correlate positively with bioavailable contamination among streams. The non-contaminated differ about two-fold Cd. Tolerance was found all age classes it can transiently lost during year, transmissible offspring. In addition, dropped significantly when organisms transferred Cd-free environment two months. These also ceased producing tolerant offspring, confirming non-genetic transmission between generations. findings support corresponds acclimation combined transgenerational plasticity. Moreover, revealed offspring not maternal effect. We suggest epigenetics plausible mechanism plasticity observed field. results therefore highlight neglected role modified sensitivities natural contamination.

Language: Английский

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Neglected impacts of plant protection products on invertebrate aquatic biodiversity: a focus on eco-evolutionary processes

Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: unknown

Published: March 9, 2024

Language: Английский

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Population structure and insecticide response of Gammarus spp. in agricultural and upstream forested sites of small streams

Environmental Sciences Europe, Journal Year: 2023, Volume and Issue: 35(1)

Published: June 3, 2023

Abstract Exposure to pesticides may cause adaptation not only in agricultural pests and pathogens, but also non-target organisms. Previous studies mainly searched for adaptations organisms pesticide-polluted sites. However, propagate heritable pesticide effects, such as increased tolerance, non-exposed populations through gene flow. We examined the tolerance—as one of pre-assumptions local adaptation—of freshwater crustacean Gammarus spp. (at genus level reflecting gammarid community). The tolerance was quantified acute toxicity tests using insecticide imidacloprid. Gammarids were sampled at sites (termed agriculture), least impacted upstream refuge) transitional edge) six small streams south-west Germany. Furthermore, we population genetic structure fossarum energy reserves (here lipid content) G. well three site types (i.e. agriculture, edge refuge). found significantly lower imidacloprid from compared refuge sites, potentially due higher environmental stress indicated by a slightly content per mg tissue. no differences between populations, indicating propagation effects edges. among showed significant differentiation streams, within stream across types. suggest that high flow each hindered resulted similar (pre)adaptations levels types, although they exhibited different pollution. Further on target genes (e.g., conferring tolerance), fitness phenotypes particular are required adjacent pristine ecosystems detect potential propagations effects.

Language: Английский

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Rapid development of increased neonicotinoid tolerance in non-target freshwater amphipods

Environment International, Journal Year: 2023, Volume and Issue: 183, P. 108368 - 108368

Published: Dec. 3, 2023

The comprehensive assessment of the long-term impacts constant exposure to pollutants on wildlife populations remains a relatively unexplored area ecological risk assessment. Empirical evidence suggest that multigenerational affects susceptibility organisms is scarce, and underlying mechanisms in natural environment have yet be fully understood. In this study, we first examined arthropod candidate species, Gammarus roeselii – unlike closely related species commonly occurs many contaminated river systems Central Europe. This makes it suitable study organism investigate development tolerances phenotypic adaptations along pollution gradients. 96-h acute toxicity assay with neonicotinoid thiacloprid, indeed observed successive increase tolerance coming from regions. was accompanied by certain change, increased investment into reproduction. To address question whether these changes are plastic or emerged longer lasting evolutionary processes, conducted multigeneration experiment second part our study. Here, used closely-related Hyalella azteca pre-exposed them for multiple generations sublethal concentrations thiacloprid semi-static design (one week renewal media containing 0.1 1.0 µg L-1 thiacloprid). individuals were then assays see how quickly such adaptive responses can develop. Over only two generations, almost doubled, suggesting developmental plasticity as plausible mechanism rapid adaptation strong selection factors insecticides. It discovered rapidly developed species-specific explains why which may not comparable response capabilities disappear polluted habitats. Overall, findings highlight neglected role during short- pollution. Moreover, results show even pollutant levels seven times lower than found region clear impact trajectories non-target species.

Language: Английский

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