Publications

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microplastics affect assimilation efficiency in the freshwater amphipod gammarus fossarum.an important issue in assessing microplastics is whether this newly emerging type of pollution affects freshwater invertebrates. this study was designed to examine the interactions between the amphipod gammarus fossarum and two types of microplastics. to determine the ingestion and egestion of polyamide (pa) fibres (500 × 20 μm), amphipods were exposed to four concentrations (100, 540, 2680, 13,380 pa fibres cm(-2) base area of glass beakers) and four exposure times (0.5, 2, 8, 32 h) as well as ...201627614640
role of cellular compartmentalization in the trophic transfer of mercury species in a freshwater plant-crustacean food chain.mercury (hg) represents an important risk for human health through the food webs contamination. macrophytes bioaccumulate hg and play a role in hg transfer to food webs in shallow aquatic ecosystems. nevertheless, the compartmentalization of hg within macrophytes, notably major accumulation in the cell wall and its impact on trophic transfer to primary consumers are overlooked. the present work focusses on the trophic transfer of inorganic hg (ihg) and monomethyl-hg (mmhg) from the intracellular ...201627585272
ovary and embryo proteogenomic dataset revealing diversity of vitellogenins in the crustacean gammarus fossarum.ovaries and embryos from sexually mature gammarus fossarum were sampled at different stages of the reproductive cycle. the soluble proteome was extracted for five biological replicates and samples were subjected to trypsin digestion. the resulting peptides were analyzed by high resolution tandem mass spectrometry with a ltq-orbitrap xl instrument. the ms/ms spectra were assigned with a previously described rnaseq-derived g. fossarum database. the proteins highlighted by proteogenomics were monit ...201627547807
widely distributed and regionally isolated! drivers of genetic structure in gammarus fossarum in a human-impacted landscape.the actual connectivity between populations of freshwater organisms is largely determined by species biology, but is also influenced by many area- and site-specific factors, such as water pollution and habitat fragmentation. therefore, the prediction of effective gene flow, even for well-studied organisms, is difficult. the amphipod crustacean gammarus fossarum is a key invertebrate in freshwater ecosystems and contains many cryptic species. one of these species is the broadly distributed g. fos ...201627473498
high-throughput proteome dynamics for discovery of key proteins in sentinel species: unsuspected vitellogenins diversity in the crustacean gammarus fossarum.in environmental science, omics-based approaches are widely used for the identification of gene products related to stress response. however, when dealing with non-model species, functional prediction of genes is challenging. indeed, functional predictions are often obtained by sequence similarity searches and functional data from phylogenetically distant organisms, which can lead to inaccurate predictions due to quite different evolutionary scenarios. in oviparous females, vitellogenin producti ...201627404005
gammarus fossarum (crustacea, amphipoda) as a model organism to study the effects of silver nanoparticles.amphipods are one of the most important components of freshwater ecosystems. among them, gammarids are the most widespread group in europe and are often used as bioindicators and model organisms in ecotoxicology. however, their use, especially of gammarus fossarum for the study of the environmental impact of nanoparticles, has been rather limited so far. g. fossarum was selected to assess effects of well-characterized chemically synthesized silver nanoparticles (agnps 20nm and 200nm) and "green" ...201627328878
quantification of emerging micropollutants in an amphipod crustacean by nanoliquid chromatography coupled to mass spectrometry using multiple reaction monitoring cubed mode.an innovative analytical method has been developed to quantify the bioaccumulation in an amphipod crustacean (gammarus fossarum) of three micropollutants regarded as anthropic-pollution markers: carbamazepine, oxazepam, and testosterone. a liquid-liquid extraction assisted by salts, known as quechers (quick, easy, cheap, effective, rugged, and safe) was miniaturised and optimised, so it could be adapted to the low mass samples (approximatively 5mg dry weight). for this same reason and in order t ...201627324621
investigation of the soluble metals in tissue as biological response pattern to environmental pollutants (gammarus fossarum example).in the present study, gammarus fossarum was used to investigate the bioaccumulation and toxic effects of aquatic pollutants in the real environmental conditions. the novelty of the study is the evaluation of soluble tissue metal concentrations in gammarids as indicators in early assessment of metal exposure. in the sutla river, industrially/rurally/agriculturally influenced catchment in north-western croatia, physico-chemical water properties pointed to disturbed ecological status, which was ref ...201627060638
impact of cadmium on the ecdysteroids production in gammarus fossarum.gammarus fossarum is an important test organism which is currently used as a bio-indicator as well as in ecotoxicological tests. nevertheless, data on ecdysteroids in endocrine toxicity test are not yet available for these species, despite its crucial role in molting and reproduction. in the present paper, ecdysteroids concentrations were studied during the molt cycle (in females) and embryonic development in g. fossarum (crustacea, amphipoda) in order to propose an ecdysteroids toxicity test. e ...201626980586
combined effects of drought and the fungicide tebuconazole on aquatic leaf litter decomposition.loss of biodiversity and altered ecosystem functioning are driven by the cumulative effects of multiple natural and anthropogenic stressors affecting both quantity and quality of water resources. here we performed a 40-day laboratory microcosm experiment to assess the individual and combined effects of drought and the model fungicide tebuconazole (tbz) on leaf litter decomposition (lld), a fundamental biogeochemical process in freshwater ecosystems. starting out from a worst-case scenario perspe ...201626859779
mothers and not genes determine inherited differences in cadmium sensitivities within unexposed populations of the freshwater crustacean gammarus fossarum.deciphering evolutionary processes occurring within contaminated populations is important for the ecological risk assessment of toxic chemicals. whereas increased tolerance to contaminants is well documented in aquatic animal populations, whether such phenotypic changes occur through genetic adaptation is still debated. in that sense, several studies with the freshwater crustacean gammarus concluded in a weak potential for genetic adaptation to cadmium (cd), while others reported inheritable inc ...201626834827
active biomonitoring for assessing effects of metal polluted sediment resuspension on gammarid amphipods during fluvial traffic.the resuspension of polluted sediments by boat traffic could release substantial amounts of metals to the water column, affecting at the same time their bioavailability. in order to characterize the impact of sediment resuspensions on biota, caged amphipods have been deployed on three different channelized watercourses in northern france. firstly, the biological responses of transplanted freshwater gammarid amphipods, gammarus fossarum, described by trace metal accumulation, feeding and reproduc ...201627552046
bioaccumulation of toxoplasma and cryptosporidium by the freshwater crustacean gammarus fossarum: involvement in biomonitoring surveys and trophic transfer.the protozoa toxoplasma gondii and cryptosporidium parvum are public health priorities because their oocysts can persist in recreational, surface, drinking, river, and sea water sources for a long time. to evaluate the capacity of the freshwater crustacean gammarus fossarum to accumulate t. gondii and c. parvum oocysts, gammarids were exposed to 200, 2000 or 20,000 oocysts per gammarid and per day for 21 days followed by 5 days of depuration. c. parvum dna was detected by qpcr in g. fossarum in ...201627454203
additive effects of temperature and infection with an acanthocephalan parasite on the shredding activity of gammarus fossarum (crustacea: amphipoda): the importance of aggregative behavior.climate change can have critical impacts on the ecological role of keystone species, leading to subsequent alterations within ecosystems. the consequences of climate change may be best predicted by understanding its interaction with the cumulative effects of other stressors, although this approach is rarely adopted. however, whether this interaction is additive or interactive can hardly be predicted from studies examining a single factor at a time. in particular, biotic interactions are known to ...201727591398
long-term effects of fungicides on leaf-associated microorganisms and shredder populations-an artificial stream study.leaf litter is a major source of carbon and energy for stream food webs, while both leaf-decomposing microorganisms and macroinvertebrate leaf shredders can be affected by fungicides. despite the potential for season-long fungicide exposure for these organisms, however, such chronic exposures have not yet been considered. using an artificial stream facility, effects of a chronic (lasting up to 8 wk) exposure to a mixture of 5 fungicides (sum concentration 20 μg/l) on leaf-associated microorganis ...201728160498
gammarus fossarum as a sensitive tool to reveal residual toxicity of treated wastewater effluents.wastewater treatment plants (wwtps) are one of the main sources of freshwater pollution eventually resulting in adverse effects in aquatic organisms. treated effluents can contain many micropollutants at concentrations often below the limit of chemical quantification. on a regulatory basis, wwtp effluents have to be non-toxic to the aquatic environment, wherefore not only chemical abatement but also ecotoxicological evaluation through relevant bioassays is required. standardized bioassays curren ...201728174047
use of gammarus fossarum (amphipoda) embryo for toxicity testing: a case study with cadmium.the effects of environmental contaminants on arthropod embryo stages have been poorly investigated in ecotoxicology. moreover, many of these tests used hatching success as the sole metric, although it is possible to detect many more subtle effects. after a detailed description of embryogenesis in gammarus fossarum, the present study reports on the sublethal effects of cadmium (cd) exposure during embryonic development in g. fossarum. embryos were first directly exposed in multiwell plates throug ...201728252216
antibiotic mixture effects on growth of the leaf-shredding stream detritivore gammarus fossarum.pharmaceuticals contribute greatly to human and animal health. given their specific biological targets, pharmaceuticals pose a significant environmental risk by affecting organisms and ecosystem processes, including leaf-litter decomposition. although litter decomposition is a central process in forest streams, the consequences of exposure to pharmaceuticals remain poorly known. the present study assessed the impact of antibiotics as an important class of pharmaceuticals on the growth of the lea ...201728285374
ecotoxicoproteomic assessment of the functional alterations caused by chronic metallic exposures in gammarids.very few ecotoxicological studies have been performed on long-term exposure under controlled conditions, hence limiting the assessment of the impact of chronic and diffuse chemical pressures on the health of aquatic organisms. in this study, an ecotoxicoproteomic approach was used to assess the integrated response and possible acclimation mechanisms in gammarus fossarum following chronic exposures to cd, cu or pb, at environmentally realistic concentrations (i.e. 0.25, 1.5 and 5 μg/l respectivel ...201728285888
evaluation of the influence of surfactants in the bioaccumulation kinetics of sulfamethoxazole and oxazepam in benthic invertebrates.the potential ecotoxicological effects of mixtures of contaminants in the aquatic environment are generating a global concern. benthic invertebrates, such as the crustacean gammarus fossarum, are key in the functioning of aquatic ecosystems, and are frequently used as sentinel species of water quality status. the aim of this work was to study the effects of a mixture of the most frequently detected surfactants in the bioconcentration kinetics of two pharmaceuticals in g. fossarum, evaluating the ...201728342560
trophic transfer and effects of gold nanoparticles (aunps) in gammarus fossarum from contaminated periphytic biofilm.this work addressed the trophic transfer and effects of functionalized gold nanoparticles (aunps) from periphytic biofilms to the crustacean gammarus fossarum. biofilms were exposed for 48 h to 10 nm positively charged functionalized aunps at two concentrations, 4.6 and 46 mg/l, and crustaceans g. fossarum grazed on these for 7 days, with daily biofilm renewal. gold bioaccumulation in biofilm and crustacean were measured to estimate the trophic transfer ratio of these aunp, and, for the first ti ...201728091991
health effects of metoprolol in epibenthic and endobenthic invertebrates-a basis to validate future in vitro biotests for effect-based biomonitoring.the aim of this study was to determine the effect data for metoprolol as a model substance for beta-blockers in aquatic invertebrates. the results will be used as a basis for the validation of future mode of action-based in vitro test systems targeting this class of pharmaceuticals. effects of metoprolol were investigated in two autochthonous species with high relevance in stream ecology: the amphipod gammarus fossarum and the oligochaete lumbriculus variegatus. mortality in g. fossarum was not ...201727835069
temperature-related intraspecific variability in the behavioral manipulation of acanthocephalan parasites on their gammarid hosts.understanding the effect of temperature on ecologically important species has become a major challenge in the context of global warming. however, the consequences of climate change cannot be accurately predicted without taking into consideration biotic interactions. parasitic infection, in particular, constitutes a widespread biotic interaction, and parasites impact their hosts in multiple ways, eventually leading to consequences for communities and ecosystems. we explored the effect of temperat ...201728654335
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