Academic literature on the topic 'Compartiments abiotiques'
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Journal articles on the topic "Compartiments abiotiques"
Maldiney, Thomas, Valentin Pineau, Romain Bregigeon, Catherine Neuwirth, Florian Perraud, Bianca Podac, Mathieu Blot, et al. "Faire la lumière sur le biofilm en soins critiques : un compartiment mésestimé pour lutter contre les infections associées aux dispositifs médicaux invasifs ?" Médecine Intensive Réanimation 33, no. 2 (June 7, 2024): 191–204. http://dx.doi.org/10.37051/mir-00207.
Full textPelletier, Émilien, Isabelle Desbiens, Peggy Sargian, Nathalie Côté, Antonio Curtosi, and Richard St-Louis. "Présence des hydrocarbures aromatiques polycycliques (HAP) dans les compartiments biotiques et abiotiques de la rivière et du fjord du Saguenay." 22, no. 2 (June 15, 2009): 235–51. http://dx.doi.org/10.7202/037483ar.
Full textDissertations / Theses on the topic "Compartiments abiotiques"
Rétif, Julie. "Distribution des terres rares dans les réseaux trophiques des écosystèmes estuariens." Electronic Thesis or Diss., Nantes Université, 2024. http://www.theses.fr/2024NANU4003.
Full textThe growing interest of society in rare earth elements, regrouping 17 metallic elements with unique properties and used in the industrial, agricultural and medical sectors, is leading to an increase of their release into the environment, resulting in enrichments in the aquatic media, particularly in estuaries, that are subject to strong anthropogenic pressures. The objective of this work was to study the environmental distribution of rare earth elements in estuarine ecosystems through the study of two highly anthropized French estuaries showing different levels of contamination: the Loire estuary and the Seine estuary. The study of abiotic compartments demonstrated rare earth elements are mainly accumulated in the solid phases of natural aquatic systems. However, the dissolved phase corresponds to the most impacted compartment by anthropogenic inputs with gadolinium enrichments reported in the two estuaries. The study of the biota, focusing on a large number of species from 5 phyla (algae, annelids, mollusks, crustaceans and vertebrates) representing the main levels of an estuarine food web, revealed a trophic dilution of rare earth elements within the two estuaries. Indeed, the bioaccumulation of rare earth elements is higher in algae. However, the enrichments (including gadolinium) are greater in vertebrates. These results demonstrated higher total rare earth element concentrations in the Loire estuary compared to the Seine estuary, probably due to a higher geogenic background. On the other hand, the higher anthropogenic gadolinium contamination reported in the Seine estuary could be explained by the higher population density, implying a higher number of medical procedures requiring contrast agents. Thus, the estimation of transfers from abiotic compartments to the biota and trophic transfers within the biota allowed to characterize the overall fate of rare earth elements in these estuarine ecosystems
Lefebvre, Charlotte. "Distribution spatiale et temporelle des microplastiques et particules anthropiques au sein d'une lagune côtière mésotidale, le Bassin d'Arcachon. Approche multi-compartiments." Electronic Thesis or Diss., Bordeaux, 2022. http://www.theses.fr/2022BORD0230.
Full textAs a cheap, light and resistant material, plastic rapidly became unavoidable in many sectors such as packaging, medical, automobile or building ones. However, theses extraordinary properties contribute to its ubiquity in marine environments, and sometime in an insidious way. Indeed, there is a fraction invisible to the naked eyes, named microplastic (MP), that draw researchers’ attention. They are commonly described by an upper limit size of 5 mm, yet the lower size limit is still under discussion. Meantime, other types of manufactured particles are more and more described, such as black rubbery fragments and fibers. These anthropogenic particles (AP) were already detected in marine compartments of all regions, from sea surface to bottom sediments by the way of beach, water column and living organisms. Nevertheless, MP contamination could be associated to impairment of geochemical cycles and biologic ones. Actually, because they are small-sized, MP can be ingested by a wide range of marine organisms (from zooplankton to cetacean). Additionally, the Arcachon Bay area supports important and diverse anthropogenic activities such as fishing, shellfish farming and mass tourism. Additionally, the lagoon have a complex morphology (e.g. intertidal areas and passes) and its hydrodynamic is mainly driven by tide. Thus, this project describes AP and MP contaminations in the Arcachon Bay, such as the one caused by fibers. Specifically, we were able to 1) quantify and characterize AP and MP contamination in nine compartments of this lagoon (sea surface, water column, wastewater effluent, intertidal sediment, high tide line, marine species), 2) describe their spatial distribution (from the oceanic zone to the inner-bay part) and explore transport dynamic between compartments, 3) characterize temporal evolution of the contamination within the studied compartments
Cornut, Julien. "Décomposition de détritus végétaux dans la zone hyporhéique de cours d'eau forestiers : implication du compartiment fongique." Phd thesis, Université Paul Sabatier - Toulouse III, 2010. http://tel.archives-ouvertes.fr/tel-00741847.
Full textBook chapters on the topic "Compartiments abiotiques"
Blanc, Gérard, Pierre Anschutz, Nathalie Tapie, Hélène Budzinski, Alexandra Coynel, Marie-Hélène Devier, Pierre Labadie, and Jörg Schäfer. "Les contaminants organiques dans les compartiments abiotiques de l’estuaire de la Gironde." In L'estuaire de la Gironde : un écosystème altéré ?, 118–29. Presses Universitaires de Bordeaux, 2020. http://dx.doi.org/10.4000/books.pub.45045.
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