P
Philippe D. Tortell
Researcher at University of British Columbia
Publications - 108
Citations - 6825
Philippe D. Tortell is an academic researcher from University of British Columbia. The author has contributed to research in topics: Phytoplankton & Total inorganic carbon. The author has an hindex of 32, co-authored 100 publications receiving 6059 citations. Previous affiliations of Philippe D. Tortell include Princeton University & McGill University.
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Journal ArticleDOI
Reduced calcification of marine plankton in response to increased atmospheric CO2.
Ulf Riebesell,Ingrid Zondervan,Björn Rost,Philippe D. Tortell,Richard E. Zeebe,Richard E. Zeebe,François M. M. Morel +6 more
TL;DR: It is suggested that the progressive increase in atmospheric CO2 concentrations may slow down the production of calcium carbonate in the surface ocean, as the process of calcification releases CO2 to the atmosphere.
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Nitrogen and oxygen isotope fractionation during dissimilatory nitrate reduction by denitrifying bacteria
TL;DR: In this paper, the first measurements of coupled nitrogen (N) and oxygen (O) isotope fractionation of nitrate by laboratory cultures of denitrifying bacteria have been reported.
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Metagenome of a Versatile Chemolithoautotroph from Expanding Oceanic Dead Zones
David A. Walsh,Elena Zaikova,Charles G Howes,Young C. Song,Jody J. Wright,Susannah G. Tringe,Philippe D. Tortell,Steven J. Hallam +7 more
TL;DR: Analysis of a ubiquitous and abundant but uncultivated oxygen minimum zone microbe related to chemoautotrophic gill symbionts of deep-sea clams and mussels provides a genomic foundation for understanding the ecological and biogeochemical role of pelagic SUP05 in oxygen-deficient oceanic waters and its potential sensitivity to environmental changes.
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CO2 effects on taxonomic composition and nutrient utilization in an Equatorial Pacific phytoplankton assemblage
TL;DR: The results suggest that CO2 concentrations could potentially influence competition among marine phytoplankton taxa and affect oceanic nutrient cycling.
Journal ArticleDOI
CO2 sensitivity of Southern Ocean phytoplankton
Philippe D. Tortell,Christopher D. Payne,Y. Li,Scarlett Trimborn,Björn Rost,Walker O. Smith,Christina R. Riesselman,Robert B. Dunbar,Peter N. Sedwick,Giacomo R. DiTullio +9 more
TL;DR: In this paper, the authors show that CO2 concentrations affect the physiology, growth and species composition of phytoplankton assemblages in the Ross Sea, Antarctica.