Marion Pillet

La Rochelle Université · Pelagis

Port areas are socio-ecosystems impacted by chronic mixture pollution. Some marine species benefit from living there and may be studied to define the ecological state of such environments. In this study, the risks of chronic chemical contamination and its consequences on three marine molluscs were evaluated in North Corsica (France) port areas. Med...

Pollution particularly affects coastal ecosystems due to their proximity to anthropic sources. Among those environments, harbours are subjected to marine traffic but also to accidental and chronic pollution. These areas are thus exposed to complex mixtures of contaminants such as trace elements and organic contaminants which can impact marine speci...

In port areas the identification of contamination sources is necessary for an efficient management. Biomonitoring provides information on the environmental impact of the pollutants. It is often difficult to differentiate the natural variations of biomarkers from those induced by pollution. The present study aims to define a baseline level for bioch...

FAIR and open data is not a simple, static and achievable one-step process. Challenges emerge when structuring, sharing and opening up research data, multidisciplinary in particular. An iterative approach is necessary, above all, to achieve sufficient formalism for the data to be readable also by machines and to comply with the requirements of the...

Coastal harbor areas are subjected to a myriad of contamination sources with largely unknown effects. Such complex chemical mixtures are difficult to monitor but transcriptomics is a promising approach for such biomonitoring. The present study was designed to verify the use of the Coastal Biosensor for Endocrine Disruption (C-BED) assay, previously...

Coastal port areas are subjected to a myriad of pollution sources. Contaminants in such systems include legacy pollutants (metals and hydrocarbons) and emerging contaminants (e.g. pharmaceuticals) with largely unknown effects. Monitoring for such complex chemical mixtures in marine ecosystems is difficult. Transcriptomics is a promising approach ap...

Les pollutions présentes en mer (organiques et inorganiques), proviennent à plus de 80% du domaine terrestre et des activités humaines qui y sont menées. Les eaux côtières, regroupant pas moins de 90% de la biodiversité marine, sont directement impactées par ces pressions anthropiques. Plus particulièrement, les zones portuaires, qui abritent bons...

Le biomonitoring du milieu marin, mis en place pour caractériser l’état écologique d’un milieu, ou évaluer les effets des protocoles de gestion environnementale, permet le développement d'une compréhension scientifique de l'environnement marin et des impacts des humains sur celui-ci. Les méthodes traditionnelles de biomonitoring sont généralement b...

Dans les zones portuaires, les divers polluants retrouvés dans le milieu constituent une menace sérieuse pour le milieu marin et les espèces qui y résident [1]. Les activités récréatives, le trafic maritime, le carénage, etc. provoquent une contamination qui s'ajoute à celle déjà observée en zone côtière. Ces pressions anthropiques chroniques peuve...

Human activities, whether at sea, on land or along the human‐made coastline may cause chronic and diffuse pollution in the marine environment that represents 75% of the global marine pollution. The use of bioindicators is particularly relevant from a biological point of view if the directly measured concentrations reflect the bioavailable fractions...

Les zones portuaires sont des socio-écosystèmes anthropisés soumis à l’influence des bassins versants et à une forte urbanisation. Ces environnements semi-fermés sont impactés par des polluants (organiques et inorganiques) liés à la dynamique spécifique des ports (trafic maritime, activités de pêche, plaisance, peintures antisalissures). Malgré ces...

In a natural ecosystem, fish are subjected to a multitude of variable environmental factors. It is important to analyze the impact of combined factors to obtain a realistic understanding of the mixed stress occurring in nature. In this study, the physiological performance of juvenile common carp (Cyprinus carpio) exposed for one week to an environm...

The aquatic environment is the final sink of various pollutants including metals, which can pose a threat for aquatic organisms. Waterborne metal mixture toxicity might be influenced by environmental parameters such as the temperature. In the present study, common carp were exposed for 27 days to a ternary metal mixture of Cu, Zn, and Cd at two dif...

In the aquatic environment, metals are present as mixtures, therefore studies on mixture toxicity are crucial to thoroughly understand their toxic effects on aquatic organisms. Common carp were used to assess the effects of short-term Cu(II) and Cd(II) mixtures, using a fixed concentration of one of the metals, representing 25 % of its individual 9...

Coastal areas are the interface between terrestrial and marine ecosystems and are a habitat for 90% of the marine biodiversity. However, these waters are the first impacted by anthropic activities, especially in port areas, due to the maritime traffic or accidental pollution. Following the recommendations of the Marine Strategy Framework Directive,...

Metal contamination of the aquatic environment is problematic due to the bioaccumulative, non-biodegradable and toxic proprieties of these elements. Several studies have demonstrated the impact of single metal exposures on the physiological performance of fish but their results are sometimes contradictory, with metals showing different effects acco...

The aquatic environment is continuously under threat because it is the final receptor and sink of waste streams. The development of industry, mining activities and agriculture gave rise to an increase in metal pollution in the aquatic system. Thus a wide occurrence of metal mixtures exists in the aquatic environment. The assessment of mixture stres...

Supplementary data

The present study analyzed the Peruvian scallop Argopecten purpuratus and its food sources for metal and fatty acid concentrations in order to determine spatial and temporal differences. Metals such as copper (Cu), manganese (Mn), and zinc (Zn) in gills and iron (Fe) and Zn in sediments were the most significant explaining factors for spatial diffe...

The metal contamination of the aquatic environment is problematic due to the bioaccumulative, non-biodegradable and toxic proprieties of these elements. Some metals are essential but ultimately they may become inhibitory or toxic at high concentrations, while other (non-essential) have deleterious effects even at low concentrations. Previous studie...

Aquatic environments are subjected to numerous anthropogenic stressors that are much more diverse and variable than those tested in laboratory conditions. So it is important to analyse the effects of metal mixtures to obtain a realistic understanding of the impact of pollution in such natural ecosystems. The impact of a one-week exposure to metal m...

Analyzing effects of metal mixtures is important to obtain a realistic understanding of the impact of mixed stress in natural ecosystems. The impact of a one-week exposure to a sublethal metal mixture containing copper (4.8 μg/L), cadmium (2.9 μg/L) and zinc (206.8 μg/L) was evaluated in the common carp (Cyprinus carpio). To explore whether this ex...

Aquatic environments are subjected to numerous anthropogenic stressors that are much more diverse and variable than those usually tested in laboratory conditions. Even if previous research indicated that strong interactive effects are observed in metal mixture scenarios that are not expected based on single metal exposures, the assessment of mixtur...

Prinet, A. ; Pillet, M. ; Chabot, D. ; Tremblay, R. & Audet, C.

Dans la couche d'eau profonde de l'estuaire et du Golfe du Saint-Laurent, les niveaux d'oxygène dissous sont très faibles tout au long de l'année. L'hypoxie est un phénomène connu pour avoir de nombreux impacts sur les espèces aquatiques. La crevette nordique Pandalus borealis est abondamment présente dans cette couche d'eau profonde, notamment dan...

In the deeper water layer of the estuary and Gulf of Saint-Lawrence, oxygen levels are very low all year long. It is well known that hypoxia has a wide range of effects on animal species. Northern shrimp are abundant in the deeper layer of the Laurentian channel where oxygen levels are often below 30% air saturation. In order to understand the dist...

The concept of trophic level is particularly relevant in order to improve knowledge of the structure and the functioning of an ecosystem. A precise estimation of fish trophic levels based on nitrogen isotopic signatures in environments as complex and fluctuant as estuaries requires a good description of the pelagic and benthic trophic chains and a...