Dufour, Suzanne - Memorial University of Newfoundland

个人简介

PhD, Scripps Institution of Oceanography, University of California San Diego (2003) MSc, Biologie, Université de Moncton (1998) BSc, Biologie, Université de Moncton (1996)

研究领域

Chemoautotrophic symbiosis in thyasirid bivalves: Chemoautrophic symbioses are long-term associations between invertebrates and chemoautotrophic bacteria (sulphide or methane-oxidizers), with nutritional benefits for the animal host. Since the discovery of such associations at hydrothermal vents, chemosymbioses have been found in a variety of marine habitats, including shallower sediments that are enriched with organic matter. In my lab, we study chemosymbiotic bivalves of the family Thyasiridae; symbiotic thyasirids are often found as abundant, opportunistic colonists in sites of organic enrichment such as fjords, paper mill or sewage outfalls, aquaculture sites and offshore oil fields. Current reseach in my lab focuses on thyasirids from various sites in Bonne Bay, Newfoundland.

近期论文

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Hakonen A, Hulth S, Dufour S (2010) Analytical performance during ratiometric longterm imaging of pH in bioturbated sediments. Talanta 81 1393‐1401 Dufour SC, White C, Desrosiers G, Juniper SK (2008) Structure and composition of the consolidated mud tube of Maldane sarsi (Polychaeta: Maldanidae). Estuarine, Coastal and Shelf Science 78: 360‐368 Gagnoud M, Lajeunesse P, Desrosiers G, Long B, Dufour S, Labrie J, Mermillod‐Blondin F, Stora G (2008) Litho‐ and biofacies analysis of postglacial marine mud using CT‐scanning. Engineering Geology 103:106‐111 Dufour SC, Felbeck H (2006) Symbiont abundance is related to particulate food and sulphide availability in thyasirids (Bivalvia). Marine Ecology Progress Series 320:185‐194 Dufour SC, Steiner G, Beninger PG (2006) Phylogenetic analysis of the perihydrothermal vent bivalve Bathypecten vulcani based on 18S rRNA. Malacologia 48 :35‐42 Dufour SC, Desrosiers G, Long B, Lajeunesse P, Gagnoud M, Labrie J, Archambault P, Stora G (2005) A new method for three‐dimensional visualisation and quantification of biogenic structures in aquatic sediments using axial tomodensitometry. Limnology and Oceanography: Methods 3:372‐380 and Update, published in 2007 Dufour SC (2005) Gill anatomy and the evolution of symbiosis in the bivalve family Thyasiridae. Biological Bulletin 208:200‐212 Duplessis MR, Dufour SC, Blankenship LE, Felbeck H, Yayanos AA (2004) Anatomical and experimental evidence for particulate feeding in Lucinoma aequizonata and Parvilucina tenuisculpta (Bivalvia : Lucinidae) from the Santa Barbara Basin. Marine Biology 145:551‐561 Dufour SC, Felbeck H (2003) Sulphide mining by the superextensile foot of symbiotic thyasirid bivalves. Nature 426:65‐67 Beninger PG, Dufour SC, Decottignies, P, Le Pennec, M (2003) Particle processing mechanisms in the archaic, peri‐hydrothermal vent bivalve Bathypecten vulcani, inferred from cilia and mucocyte distributions on the gill. Marine Ecology Progress Series 246:183‐195 Le Pennec G, Le Pennec M, Beninger PG, Dufour S (2002) Spermatogenesis in the archaic hydrothermal vent bivalve, Bathypecten vulcani, and a comparison with littoral pectinids. International Journal of Invertebrate Reproduction and Development 41:13‐19 Dufour SC, Beninger PG (2001) A functional interpretation of cilia and mucocyte distributions on the abfrontal surface of bivalve gills. Marine Biology 138:295‐309 Beninger PG, Dufour SC (2000) Evolutionary trajectories of a redundant feature: lessons from bivalve gill abfrontal cilia and mucocyte distributions. In: Harper EM, Taylor JD, Crame JA (eds) The evolutionary biology of the bivalvia. Geological Society of London, Special Publication 177:273‐278 Beninger PG, Dufour SC, Bourque J (1997) Particle processing mechanisms of the eulamellibranch bivalves Spisula solidissima and Mya arenaria. Marine Ecology Progress Series 150:157‐169 Beninger PG, Dufour SC (1996) Mucocyte distribution and relationship to particle transport on the pseudolamellibranch gill of Crassostrea virginica (Bivalvia: Ostreidae). Marine Ecology Progress Series 137:133‐138