Auswahl der wissenschaftlichen Literatur zum Thema „Planctonique“
Geben Sie eine Quelle nach APA, MLA, Chicago, Harvard und anderen Zitierweisen an
Inhaltsverzeichnis
Machen Sie sich mit den Listen der aktuellen Artikel, Bücher, Dissertationen, Berichten und anderer wissenschaftlichen Quellen zum Thema "Planctonique" bekannt.
Neben jedem Werk im Literaturverzeichnis ist die Option "Zur Bibliographie hinzufügen" verfügbar. Nutzen Sie sie, wird Ihre bibliographische Angabe des gewählten Werkes nach der nötigen Zitierweise (APA, MLA, Harvard, Chicago, Vancouver usw.) automatisch gestaltet.
Sie können auch den vollen Text der wissenschaftlichen Publikation im PDF-Format herunterladen und eine Online-Annotation der Arbeit lesen, wenn die relevanten Parameter in den Metadaten verfügbar sind.
Zeitschriftenartikel zum Thema "Planctonique"
Cachon, Jean, und Monique Cachon. „Adaptation des dinoflagellés à la vie planctonique∗“. Bolletino di zoologia 53, Nr. 3 (Januar 1986): 239–45. http://dx.doi.org/10.1080/11250008609355509.
Der volle Inhalt der QuelleBoukari, Ousmane Touré, Flavien Edia Dovonou, Waris Kéwouyèmi Chouti, Daniel Koto Dagnon, Edmisol Adjadjihoue, Youssouf Abou, Daouda Mama und Limam Moktar Bawa. „Biomasse planctonique et qualité de l’eau du lac Ahémé au Sud-Ouest du Bénin“. International Journal of Biological and Chemical Sciences 16, Nr. 3 (30.08.2022): 1350–64. http://dx.doi.org/10.4314/ijbcs.v16i3.35.
Der volle Inhalt der QuelleBalvay, G., J. C. Druart und M. Laurent. „Premier complément à l'inventaire de la biocénose planctonique du lac Léman“. Swiss Journal of Hydrology 47, Nr. 1 (März 1985): 76–80. http://dx.doi.org/10.1007/bf02538186.
Der volle Inhalt der QuelleSevrin-Reyssac, J. „Le Cladocère Planctonique Bosmina Longirostris (O. F. Müller) Dans Les Étangs De Pisciculture“. Crustaceana 71, Nr. 5 (1998): 571–82. http://dx.doi.org/10.1163/156854098x00446.
Der volle Inhalt der QuelleBruno, V., J. Y. Gal und B. Descamps. „Etude expérimentale de la fixation du 226Ra par une algue planctonique, Scenedesmus obliquus“. Radioprotection 24, Nr. 2 (April 1989): 99–108. http://dx.doi.org/10.1051/radiopro/19892402099.
Der volle Inhalt der QuelleMagniez-Jannin, Françoise, Jean-Gabriel Bréhéret und Gérard Delanoy. „Un exemple de spéciation lié à l'eustatisme: l'apparition précoce de Schackoina cabri (foraminifère planctonique mésogéen)“. Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science 325, Nr. 3 (August 1997): 225–30. http://dx.doi.org/10.1016/s1251-8050(97)88293-6.
Der volle Inhalt der QuelleCorisco, J. A. Gil, und M. C. Vaz Carreiro. „Étude expérimentale sur l'accumulation et la rétention du 134Cs par une microalgue planctonique, Selenastrum capricornutum Printz“. Revue des sciences de l'eau 3, Nr. 4 (12.04.2005): 457–68. http://dx.doi.org/10.7202/705085ar.
Der volle Inhalt der QuelleROSEBERY, Juliette, Yorick REYJOL, Thibault LEBOUCHER, Virginie ARCHAIMBAULT, Jérôme BELLIARD, David CARAYON, Martial FERREOL et al. „Dynamique temporelle de la biodiversité en cours d’eau“. Sciences Eaux & Territoires, Nr. 42 (29.01.2023): 43–47. http://dx.doi.org/10.20870/revue-set.2023.42.7294.
Der volle Inhalt der QuelleBerthon, J. L. „Comparaison de la biomasse et du contenu �nerg�tique d'un Cop�pode planctonique: Acanthocyclops vernalis (Fischer 1853)“. Hydrobiologia 123, Nr. 3 (April 1985): 223–31. http://dx.doi.org/10.1007/bf00034383.
Der volle Inhalt der QuelleGarreau, Par F., C. Rougier und R. Pourriot. „Resource exploitation by the planktonic predator Asplanchna girodi DE GUERNE 1888 (Rotifera) in a sand-pit lake“. Archiv für Hydrobiologie 112, Nr. 1 (24.03.1988): 91–106. http://dx.doi.org/10.1127/archiv-hydrobiol/112/1988/91.
Der volle Inhalt der QuelleDissertationen zum Thema "Planctonique"
Bonou, Clément A. „Étude de la productivité planctonique dans des étangs d'aquaculture en milieu saumâtre tropical“. Toulouse, INPT, 1990. http://www.theses.fr/1990INPT007A.
Der volle Inhalt der QuellePanaïotis, Thelma. „Distribution du plancton à diverses échelles : apport de l'intelligence artificielle pour l'écologie planctonique“. Electronic Thesis or Diss., Sorbonne université, 2023. http://www.theses.fr/2023SORUS155.
Der volle Inhalt der QuelleAs the basis of oceanic food webs and a key component of the biological carbon pump, planktonic organisms play major roles in the oceans. However, their small-scale distribution − governed by biotic interactions between organisms and interactions with the physico-chemical properties of the water masses in their immediate environment − are poorly described in situ due to the lack of suitable observation tools. New instruments performing high resolution imaging in situ in combination with machine learning algorithms to process the large amount of collected data now allows us to address these scales. The first part of this work focuses on the methodological development of two automated pipelines based on artificial intelligence. These pipelines allowed to efficiently detect planktonic organisms within raw images, and classify them into taxonomical or morphological categories. Then, in a second part, numerical ecology tools have been applied to study plankton distribution at different scales, using three different in situ imaging datasets. First, we investigated the link between plankton community and environmental conditions at the global scale. Then, we resolved plankton and particle distribution across a mesoscale front, and highlighted contrasted periods during the spring bloom. Finally, leveraging high frequency in situ imaging data, we investigated the fine-scale distribution and preferential position of Rhizaria, a group of understudied, fragile protists, some of which are mixotrophic. Overall, these studies demonstrate the effectiveness of in situ imaging combined with artificial intelligence to understand biophysical interactions in plankton and distribution patterns at small-scale
Da, Silva Ophélie. „Structure de l'écosystème planctonique : apport des données à haut débit de séquençage et d'imagerie“. Electronic Thesis or Diss., Sorbonne université, 2021. http://www.theses.fr/2021SORUS183.
Der volle Inhalt der QuellePlanktonic organisms are key actors in oceanic ecosystems, which support trophic networks and play a major role in biogeochemical cycles and climate regulation. While the spatio-temporal distribution of planktonic diversity can be investigated at several levels, from the gene to the ecosystem, identifying the underlying mechanisms is challenging. Indeed, the structure of diversity results from different evolutionary and ecological processes that can act simultaneously. Since the beginning of the 21st century, the oceanic environment has been increasingly monitored. Numerous observation platforms have been deployed, leading to the acquisition of a large amount of data for multiple environmental characteristics. At the same time, technologies for studying living organisms have been developed. Thus, an unprecedented sampling of planktonic organisms has taken place. In particular, high-throughput sequencing and imaging data provide molecular, taxonomic and functional information at several biological levels. The objective of this thesis was to explore the structure of planktonic ecosystems using high-throughput sequencing and imaging data. Coupling with environmental data could contribute to a better understanding of the spatial distribution of planktonic diversity, from species to communities. In the first part, the genetic diversity of protists was studied at the species level. The hypothesis was that metagenomics could provide access to the poorly characterized spatial organization of the intraspecific protist genetic diversity, as well as to the mechanisms underlying it. In a second part, the link between genetic diversity and functional diversity was explored. Transparency was targeted. This functional trait is little explored at the community level and its molecular basis is poorly identified. A data-driven approach allowed this trait to emerge from imaging data, leading to the exploration of its biogeography and molecular basis. In the last part, the high potential of complementarity between sequencing, imaging and environmental datasets was explored, in order to highlight the multi-scale structure of the planktonic ecosystem and to identify its global structure. Finally, all the results were discussed to highlight the contributions that these data can provide to the understanding of planktonic ecosystems, as well as the limitations they can face
Perruche, Coralie. „Influence de la dynamique mésoéchelle et submésoéchelle sur la compétition au sein d'un écosystème planctonique“. Phd thesis, Université de Bretagne occidentale - Brest, 2009. http://tel.archives-ouvertes.fr/tel-00508647.
Der volle Inhalt der QuelleGheffar, Chahrazed. „Nanoparticules de PLGA chargées en ciproflaxine : élaboration, caractérisation, activité antibactérienne en modes planctonique et biofilm“. Rouen, 2016. http://www.theses.fr/2016ROUES009.
Der volle Inhalt der QuelleThe adhesion of bacteria and hence formation of biofilms on the surface of materials are recurring problems that can have serious consequences at both public health and industrial level. The eradication of biofilms today remains a challenge and a proposed strategy is the vectorization of biocidal agents by using polymeric nanoparticles. This study reports the elaboration of biocompatible and biodegradable nanoparticles (NPs) based on poly(lactic-co-glycolic acid) (PLGA) by the nanoprecipitation method. The nanoparticles were also pegylated in order to modulate their interaction with the biological media. The particles were loaded with ciprofloxacin (CIP) with a drug content of about 5 %, which allows a gradual release of the CIP during 5-6 days. Microbiological tests were made against gram positive bacteria Staphylococcus aureus. This bacteria is one of the major causes of chronic and nosocomial infections, most often involving biofilms. The naked NPs and the pegylated ones exhibited an antibacterial activity on planktonic cells against two strains of S. Aureus (ATCC 29213 and 610520), probably related to a size effect (nanoscale). These NPs showed no cytotoxicity in vitro on neuronal cells. Finally, the antibacterial activity studies of NPs loaded with CIP were conducted against a S. Aureus (ATCC 29213) on planktonic cells and biofilm. Encapsulated CIP remains effective after sequestration and is more active to eradicate biofilm than free CIP (decrease of the minimum biofilm eradication concentration)
Aldamman, Lama. „Rôle des copépodes dans le réseau trophique pélagique : dynamique de population de Temora stylifera“. Paris 6, 2008. http://www.theses.fr/2008PA066004.
Der volle Inhalt der QuelleRossi, Vincent. „Influence des processus physiques à mésoéchelle sur l'écosystème planctonique : application aux zones d'Upwelling de Bord Est“. Phd thesis, Université Paul Sabatier - Toulouse III, 2010. http://tel.archives-ouvertes.fr/tel-00504979.
Der volle Inhalt der QuelleLatour, Delphine. „Vie planctonique et vie benthique de la Cyanobactérie Microcystis aeruginosa sur la retenue de Grangent (Loire)“. Saint-Etienne, 2002. http://www.theses.fr/2002STET4008.
Der volle Inhalt der QuelleDespite a decrease of nutrient content, the Cyanobacterium M. Aeruginosa, forms blooms every summer in the hypereutrophic Grangent reservoir (Loire). . . [etc. ]
Jacquet, Séverine. „Impact des apports en nutriments sur le réseau trophique planctonique du lagon sud-ouest de Nouvelle-Calédonie“. Phd thesis, Université Pierre et Marie Curie - Paris VI, 2005. http://tel.archives-ouvertes.fr/tel-00962269.
Der volle Inhalt der QuelleBennaceur, Imène. „Etude du recrutement de la phase planctonique par le biofilm chez Bacillus cereus : approches physiologiques et moléculaires“. Thesis, Paris 11, 2013. http://www.theses.fr/2013PA112056.
Der volle Inhalt der QuelleWhen biofilm is developing in static conditions, cell exchanges between sessile and planktonic coexisting population can emerge. Up to now, very few are known about the implication of planktonic cells integration in monospecies biofilm development. in B. cereus, a foodborne pathogen, our team have shown that motility is a key factor for biofilm development and for the deep penetration of motile planktonic bacteria inside a biofilm formed in immersed condition. Based on these data, the purpose of the present work was to determine the role of recruitment in the development of biofilm in air-liquid interface and to characterize this phenomenon physiologically and in a molecular aspect. We showed that a massive planktonic population is integrated in the developing biofilm, however, in our experimental conditions this recruitment contributes only marginally to the biofilm growth. We have developed two recruitment systems (in air-liquid interface and in immersion condition), to quantify recruitment, which has allowed us to screen a library of mutants obtained by random mutagenesis in order to select clones unable to be recruited by a preformed biofilm. Screening of 1700 clones resulted in the selection of a gene: Bthur002_62720. The deletion of this gene by allelic exchange strongly affects the ability of the mutant to be recruited, and complementation restored the wild type phenotype. This gene encodes a protein probably localized in the bacterial envelope. It is carried by a plasmid, pCT8513, and could be a mobile element whose acquisition would greatly increase the ability of the recipient bacterium to be recruited by a biofilm. Finally, we have highlighted the role of the eps locus in the recruitment of planktonic cells in a biofilm formed at air-liquid interface. This locus is homologous to Bacillus subtilis epsA-O locus, required in this species for the production of exopolysaccharides of the biofilm matrix. In B. cereus, we have shown that the eps locus is involved in the formation of an exopolysaccharides sheath weakly bound to the bacterial cell wall. This exopolysaccharides layer contributes with other exopolysaccharides of unknown origin, to the formation of the biofilm matrix, and plays an important role in the adhesion of bacteria on inanimate and living surfaces.By promoting bacterial adhesion on living surfaces; the eps locus could help bacteria integration into the biofilm. It could also be involved in the pathogenicity of bacteria
Bücher zum Thema "Planctonique"
Bellier, Jean-Pierre. Foraminifères planctoniques du Crétacé de Tunisie septentrionale: Utilisation stratigraphique des formes trochospiralées de l'Albien au Maastrichtien. Paris: Société géologique de France, 1985.
Den vollen Inhalt der Quelle findenCanada. Ministère des pêches et des océans. Direction des sciences biologiques. Effets des facteurs biotiques et abiotiques sur la structure et les relations trophiques des communautés planctoniques et benthiques: Revue des hypothèses. Mont-Joli, Qué: Ministère des pêches et des océans, Direction des sciences biologiques, 1989.
Den vollen Inhalt der Quelle finden