Catherine Mouneyrac

Catherine Mouneyrac
Catholic University of the West | UCO · IBEA

About

171
Publications
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Publications

Publications (171)
Article
Plastics pollution in marine environment has become an issue of increasing scientific concern. This work aims to study the temporal and spatial distribution of plastics in sediments from three different Tunisian ecosystems; Rimel Beach, Bizerta lagoon and Ichkeul lake. Sediment sampling was conducted in surface (2 cm) and depth (15 cm) during sprin...
Article
The Seine Estuary is historically one of the most contaminated estuaries in Europe. In 2002 the estuary underwent major redevelopment which emphasized environmental remediation to measure biological effects. The present study investigated the health status of the sentinel species Hediste diversicolor in the Seine estuary by comparing data from a sa...
Article
Full-text available
The widespread use and release of nanomaterials (NMs) in aquatic ecosystems is a concerning issue as well as the fate and behavior of the NMs in relation to the aquatic organisms. In this work, the freshwater microcrustacean D. magna was exposed to 12 different and well-known NMs under the same conditions for 24h and then placed in clean media for...
Article
Full-text available
For engineered metal nanoparticles (NPs), such as copper oxide (CuO) NPs, the sediment is recognized as a major compartment for NP accumulation. Sediment-dwelling organisms, such as the worm Tubifex tubifex, will be at particular risk of metal and metal NP exposure. However, a range of complex transformation processes in the sediment affects NP bio...
Article
The use of disposable face masks became essential to fight against the COVID-19 pandemic, resulting in an unprecedented rise in their production and, unfortunately, to a new form of environmental contamination due to improper disposal. Recent publications reported the abundance of COVID-19-related litter in several environments, wildlife interactio...
Article
Currently, research agenda in marine ecotoxicology is facing new challenges with the emergence of newly and complex synthetized chemicals. The study of the fate and adverse effects of toxicants remains increasingly complicated with global change events. Ecotoxicology had provided for a decades, precious scientific data and knowledge but also techni...
Article
Copper oxide nanoparticles (CuO NPs) accumulating in sediment can be taken up by invertebrates that serve as prey for fish. Thus, it is likely that the latter are exposed to CuO NPs via the gut. However, to this day it is unknown if CuO NPs can be taken up via the gastrointestinal tract and if and in which tissues/organs they accumulate. To address...
Poster
Full-text available
L’utilisation de nanomatériaux (NMs) soulève certaines interrogations en ce qui concerne leur devenir dans les compartiments environnementaux et leurs effets potentiels vis-à-vis des organismes aquatiques. L’une des singularités de ces substances est leur dualité d’action, à la fois physique (i.e. adhésion, adsorption, altération physique des tissu...
Article
The implementation of Safe(r) by Design (SbD) in industrial innovations requires an integrated approach where the human, environmental and economic impact of the SbD measures is evaluated across and throughout the nanomaterial (NM) life cycle. SbD was implemented in six industrial companies where SbD measures were applied to NMs, nano-enabled produ...
Article
Production of Manufactured Nanomaterials (MNMs) has increased extensively due to economic interest in the current years. However, this widespread use raises concern about their impact on human and environment. Current efforts are made, both at national and international levels to help developing safer MNMs in the market. In order to assess hazards...
Article
Full-text available
Since nanomaterials (NMs) are particulate contaminants, their first contact with organisms is a physical encounter ruled by physic-chemical processes that can determinate the potential NMs accumulation, toxicity, and trophic transfer. Freshwater ecosystems often become a final depository for NMs, so they can get in contact with the biota, especiall...
Article
Microplastics are widely distributed environmental contaminants. To understand their impacts on the environment and health, more high-quality results are needed. Since microplastics are present in every environment, including indoor air, proper precautions must be adopted in order to prevent contamination of samples and overestimation of environmen...
Article
Full-text available
There has been an exponential interest in the occurrence and potential ecotoxicological consequences stemming from the growing prevalence of (micro)plastics in the environment. This has been especially evident by the increasing concern regarding the visible effects on marine ecosystems, with multiple local, regional, and trans-national initiatives...
Article
Full-text available
Metal nanoparticles (NPs) released into the aquatic environment will likely accumulate in sediment and be available for sediment-dwelling invertebrates that serve as food for other organisms, such as fish. The aim of the present study was to investigate trophic transfer of copper oxide (CuO) NPs and dissolved Cu (CuCl2) from natural sediment to the...
Article
Full-text available
The development of human activities along the Atlantic coast (France) is responsible for the chronic pollution of the environment with organic (pesticides, hydrocarbons, phytosanitary) and inorganic (metals) contaminants. In recent years, environmental regulations such as the Marine Strategy Framework Directive (MSFD, 2008/56/EC) and the OSPAR comm...
Article
Full-text available
The presence of plastic debris < 5 mm called microplastics (MPs) which results mainly from macroplastic’s fragmentation has been reported in aquatic ecosystems. Several studies have shown that MPs are persistent and their accumulation was observed in various aquatic species. However, the majority of studies focused on marine species, and much less...
Book
This reference work presents an authoritative review of microplastics as vectors of environmental contaminants and provides a comprehensive coverage of their ecotoxicological and toxicological effects. Divided into four sections, this book outlines the current analytical techniques and applications for sampling, processing analysis, and data report...
Article
The aim of the present study was to evaluate the presence and potential toxic effects of plastic fragments (< 400 μm) of polyethylene and polypropylene on the Pacific oyster Crassostrea gigas. Oysters were exposed to environmentally relevant concentrations (0, 0.008, 10, 100 μg of particles/L) during 10 days, followed by a depuration period of 10 d...
Article
Full-text available
The Water Framework Directive (WFD) currently supports chemical and ecological monitoring programmes in order to achieve the good water surface status. Although chemical and ecological assessments are necessary, they have some limitations. Chemical approaches focus on certain substances identified as priorities, but they do not take into account ot...
Chapter
This chapter addresses the problematic of microplastics in aquatic environments through: the description of microplastics and their sources and distribution, their fate and behaviour, and also their presence and potential effect on aquatic fauna.
Article
Manufactured nanomaterial production is out pacing the ability to investigate environmental hazard using current regulatory paradigms, causing a backlog of materials requiring testing. To ameliorate this issue, regulatory bodies have proposed integrating safety into the production of novel nanomaterials, allowing for hazards to be identified early...
Article
Full-text available
Plastic pollution is generated by the unsustainable use and disposal of plastic products in modern society, threatening economies, ecosystems, and human health. Current clean-up strategies have attempted to mitigate the negative effects of plastic pollution but are unable to compete with increasing quantities of plastic entering the environment. Th...
Article
Because they are widely used, copper oxide nanoparticles (CuO NPs) are likely to enter the aquatic environment and then reach the sediment. We have examined the effect of CuO NPs in the freshwater endobenthic bivalve Corbicula fluminea. Some previous studies have investigated effects at biochemical and physiological levels, but molecular endpoints...
Poster
Full-text available
Flow cytometry could be useful for studying algae–NMs interaction. The algae-NMs interaction depends on: - The type of algae: Specially different for Desmodesmus subspicatus - The NMs properties: composition and physic-chemical Potential relevance of bio-nano interaction for the categorization of NMs
Poster
The northern mudflat of the Seine estuary is chronically threat by complex environmental stressors, such as chemical contamination and physical modifications; for example harbor construction and water flow management (e.g. the construction of “Port 2000” from 2001 to 2005). To assess the potential effect of those stressors (both natural and anthrop...
Presentation
The interaction between three different microalgae with 12 metallic nanomaterials and the physio-chemical properties that can be related
Poster
The Seine estuary plays an important ecological and socio-economic role but is also the most stressed estuary in France. The northern mudflat of the Seine estuary is continuously subjected for long time to complex environmental stressors, such as chemical pollution and physical modifications such as harbor construction (e.g. the construction of “Po...
Article
The main objective of the present study was to explore the potential link between acetylcholinesterase (AChE) activity and burrowing behaviour of the ragworm Hediste diversicolor, which may have consequences at higher levels of biological organisation. Two complementary studies were conducted. AChE activity, at the sub-individual level, and behavio...
Poster
The Seine estuary plays an important socio-economic and ecological role but is also the most stressed estuary in France. The northern mudflat of the Seine estuary is continuously subjected for long time to complex environmental stressors, such as chronic chemical pollution, physical modifications such as harbor construction (e.g. the construction o...
Article
Full-text available
Cerium dioxide nanomaterials (CeO2 NMs) are used in different fields and incorporated in daily products. Several studies highlighted their effects on organism physiology, although molecular studies remain scarce. NM behavior is strongly dependent on the environment but few data are available using complex exposure media, raising the question of its...
Article
Full-text available
The wedge clam Donax trunculus is commonly used in environmental monitoring studies as sentinel species for the biomonitoring of sandy beaches in Mediterranean areas. Taking in account the combined effects of chemical stressors and global changes in marine organisms, research efforts in ecotoxicology should be up-to-date for a more relevant and int...
Article
Full-text available
The impact of a microplastic (MP) mixture composed of polyethylene (PE) and polypropylene (PP) plastic particles, prepared from commercially available products, was evaluated in blue mussels Mytilus spp. exposed to three environmentally relevant concentrations: 0.008 µg L −1 (low), 10 µg L −1 (medium), and 100 µg L −1 (high). Organisms were exposed...
Article
Full-text available
Man-made nanoparticles (NPs) released into the aquatic environment are likely to accumulate in sediment. Uptake of NPs by benthic invertebrates that serve as food for higher trophic level organisms such as fish may result in their transfer along the food chain. We tested this hypothesis in a proof-of-concept approach consisting of two studies exami...
Poster
État de la santé environnementale d’Hediste diversicolor et Scrobicularia Plana dans la vasière nord de l’estuaire de la Seine : une approche historique (2002-2018). Le présent travail s’inscrit dans le cadre du projet GIP-SEINE AVAL 6 SENTINELLES, qui cible deux compartiments clefs du fonctionnement de l’écosystème de l’estuaire de la Seine au ni...
Article
Environmental risk assessment of nanomaterials generally relies on a decision-tree based strategy which provides guidance and protocols for the determination of a collection of hazard end-points. Mesocosm testing is based on a different approach. This method consists in monitoring the evolution of a re-created miniature ecosystem subsequent to a na...
Article
To have an understanding of potential mechanistic effects, sublethal endpoints able to discriminate between nanomaterials with similar physical and chemical features need to be used. In this sense, quantitative PCR was used to measure a battery of genes linked to a wide array of different cellular processes. Gene expression was measured in Mytilus...
Article
Manufactured nanomaterials are an ideal test case of the precautionary principle due to their novelty and potential environmental release. In the context of regulation, it is difficult to implement for manufactured nanomaterials as current testing paradigms identify risk late into the production process, slowing down innovation and increasing costs...
Article
Full-text available
Anthropogenic influences on the environment have been become a focal point for many social and political endeavors. With an ever-increasing rate of new contaminants being introduced into the environment every year, regulatory policies have begun to shift to prevention rather than mitigation. However, current in vivo testing strategies, in addition...
Article
Full-text available
The aim of this study was to evaluate the ability of Palaemonetes argentinus to evidence the environmental degradation due to pollutants mixture in a freshwater aquatic ecosystem. For this purpose, an active monitoring (96 h exposure) was carried out in seven sites along the Ctalamochita River basin (Córdoba, Argentina), as a case of study. Our res...
Presentation
Les déchets plastiques subissent des transformations dans l'environnement (effet des UV, des courants..) conduisant à la formation de débris de taille micrométrique et nanométrique appelés microplastiques (MP) et nanoplastiques. Des études récentes montrent que ces fragments sont rémanents et leur accumulation a été observée chez diverses espèces a...
Article
Identification of contamination in estuarine ecosystems that are impacted by anthropogenic pressures, such as the Seine estuary, is difficult to determine without considering the role environmental variation plays on the end points selected. Currently, there is interest in identifying methods in which the influence of confounding factors can be des...
Article
Full-text available
Microplastics (MPs) constitute a main environmental issue due to their threat to marine organisms and so far to humans. The lack of a fast standard protocol in MP isolation and identification from living organisms bring to challenge for the science. In this paper, an optimized protocol using potassium hydroxide 10% (KOH 10%; m/v) for digestion of m...
Article
The rapid development of nanotechnology and the increased use of nanomaterials in products used in everyday life have raised the question of the potential release of nanoparticles into the aquatic environment. Their fate and effects in natural ecosystems are not currently well understood but harmful effects of nanoparticles have been demonstrated a...
Chapter
Full-text available
The ragworm Hediste diversicolor (O. F. Müller, 1776) is a widespread species of coastal lagoons and estuaries from Morocco to Scandinavia. Population dynamics of H. diversicolor from the Atlantic coast of Morocco were studied in the Bou Regreg Estuary (Gillet, 1993), in the Souss Estuary (Aït Alla et al., 2006); in Spain, in the Bay of Cadiz (Aria...
Chapter
Full-text available
Micropollutant accumulation in Loire River (France) water, sediments and biota.
Article
Combined influence of oxygenation and salinity on agglomeration and/or aggregation kinetics of silver (Ag) nanomaterials NM-300K was conducted and the relationship between their physico-chemical fate and toxicity towards an estuarine bivalve was established. The results showed that the presence of NaCl under oxygen conditions (8.5 ppm) promoted the...
Poster
In the second half of the 20th century, the production of plastic expanded resulting in the elaboration of various products from diverse plastic types. Nowadays, plastic products can be found in several fields (mainly as packaging), such as health, energy generation, construction, automotive industries, electronics, and textiles. Since the early 19...
Article
In recent years, the implication of genomics into ecotoxicological studies has been studied closely to allow a better understanding of organism’s responses to environmental contaminants including engineering nanomaterials (ENMs). ENMs are increasingly produced for various applications including cosmetics, electronics, sports equipment, biomedicine...
Article
Full-text available
The colloidal and chemical stability of CeO2 nanoparticles used in a diesel additive (viz. Envirox™) was studied at different stages of their lifecycle (formulation, use, end of life). After combustion at a temperature close to that of diesel engines, the size of the CeO2 crystallites increased significantly without detectable Ce(III) in the struct...
Article
The field of environmental toxicology developed as a result of growing concerns about anthropogenic influences on the environment and how to ameliorate ecological impact. Many governmental bodies are beginning to emphasize prevention rather than mitigation when addressing novel products, leading to more of a focus on identifying potential toxicity...
Article
Environmental risk assessment of engineered nanomaterials (ENMs) is an emergent field since nanotechnology industry is rapidly growing due to the interesting physicochemical properties of nanomaterials. Metal-based nanomaterials are among the most rapidly commercialized materials and their toxicity towards aquatic animals have been investigated at...
Book
Full-text available
Welcome to the final conference of the COST Action ES1205. The most important aim of our Action was to create a pan-European network and, glancing at the book of abstracts – I can say – we were successful. The majority of contributions you will find here were influenced by our activities. The foundations of this Action however, must certainly be th...
Article
Nanotechnology is a much promising field of science and technology with applications in a wide range of areas such as electronics, biomedical applications, energy, and cosmetics. Metal-based engineered nanoparticles (ENPs) are common in many technological applications; some of the most common nanoparticles available commercially are silver, gold, c...
Article
Evaluation of DNA quality of gametes is a relevant method to predict potential consequences of pollutants in the next generations, as it allows to define adverse outcome pathways implicated in pollutant-mediated toxicity for risk assessment. In the present study, a comet assay was developed for the spermatozoa of Scrobicularia plana exposed to 10 a...
Chapter
Full-text available
The ubiquitous presence and persistency of microplastics (MPs) in aquatic environments are of particular concern, since they constitute a potential threat to marine organisms and ecosystems. However, evaluating this threat and the impacts of MP on aquatic organisms is challenging. MPs form a very wide range of materials with different sizes, shapes...
Article
To assess the effects of agricultural management strategies on earthworm energy reserves (glycogen and lipids), 16 apple orchards under different strategies (organic, Integrated Pest Management (IPM), conventional and abandoned) were selected. Soil samples and 10 adults of the most common earthworm species (Allolobophora chlorotica) were sampled in...
Article
The aim of this study was to evaluate the toxic effects of chlorpyrifos (CPF) at environmental concentrations over the shrimp Palaemonetes argentinus, a South American native species. Organisms were exposed in laboratory conditions at relevant environmental concentrations of CPF (from 3.5 to 94.5 ng CPF L-1) for 96 h. A wide battery of biochemical...
Book
Full-text available
https://www.anses.fr/fr/system/files/AP2011SA0088Ra.pdf