Effect of oxygen minimum zone formation on communities of marine protists
Date
2012-01-10Author
Orsi, William D.
Concept link
Song, Young C.
Concept link
Hallam, Steven J.
Concept link
Edgcomb, Virginia P.
Concept link
Metadata
Show full item recordCitable URI
https://hdl.handle.net/1912/5358As published
https://doi.org/10.1038/ismej.2012.7Keyword
Protists; Diversity; Anoxic; Oxygen minimum zone; 18S rRNA approachAbstract
Changes in ocean temperature and circulation patterns compounded by human activities are
leading to oxygen minimum zone expansion with concomitant alteration in nutrient and climate
active trace gas cycling. Here, we report the response of microbial eukaryote populations to
seasonal changes in water column oxygen-deficiency using Saanich Inlet, a seasonally anoxic
fjord on the coast of Vancouver Island British Columbia, as a model ecosystem. We combine
small subunit ribosomal RNA gene sequencing approaches with multivariate statistical methods
to reveal shifts in operational taxonomic units during successive stages of seasonal stratification
and renewal. A meta-analysis is used to identify common and unique patterns of community
composition between Saanich Inlet and the anoxic/sulfidic Cariaco Basin (Venezuela) and
Framvaren Fjord (Norway) to show shared and unique responses of microbial eukaryotes to
oxygen and sulfide in these three environments. Our analyses also reveal temporal fluctuations
in rare populations of microbial eukaryotes, particularly anaerobic ciliates, that may be of
significant importance to the biogeochemical cycling of methane in oxygen minimum zones.
Description
Author Posting. © The Author(s), 2012. This is the author's version of the work. It is posted here by permission of Nature Publishing Group for personal use, not for redistribution. The definitive version was published in The ISME Journal 6 (2012): 1586–1601, doi:10.1038/ismej.2012.7.
Collections
Suggested Citation
Preprint: Orsi, William D., Song, Young C., Hallam, Steven J., Edgcomb, Virginia P., "Effect of oxygen minimum zone formation on communities of marine protists", 2012-01-10, https://doi.org/10.1038/ismej.2012.7, https://hdl.handle.net/1912/5358Related items
Showing items related by title, author, creator and subject.
-
Imprint of trace dissolved oxygen on prokaryoplankton community structure in an oxygen minimum zone
Medina Faull, Luis E.; Mara, Paraskevi; Taylor, Gordon T.; Edgcomb, Virginia P. (Frontiers Media, 2020-05-26)The Eastern Tropical North Pacific (ETNP) is a large, persistent, and intensifying oxygen minimum zone (OMZ) that accounts for almost half of the total area of global OMZs. Within the OMZ core (∼350–700 m depth), dissolved ... -
Substantial oxygen consumption by aerobic nitrite oxidation in oceanic oxygen minimum zones
Beman, J. Michael; Vargas, Sonia M.; Wilson, Jesse M.; Perez-Coronel, Elisabet; Karolewski, Jennifer S.; Vazquez, Samantha; Yu, Angela; Cairo, Ariadna E.; White, Margot E.; Koester, Irina; Aluwihare, Lihini I.; Wankel, Scott D. (Nature Research, 2021-12-02)Oceanic oxygen minimum zones (OMZs) are globally significant sites of biogeochemical cycling where microorganisms deplete dissolved oxygen (DO) to concentrations <20 µM. Amid intense competition for DO in these metabolically ... -
The minimum oxygen concentration in the western basin of the North Atlantic
Seiwell, Harry Richard (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1937-05)With the advance in knowledge of oceanic circulation there now exists a demand for additional identifying properties which will serve to trace the origin and movements of water masses in the sea, and to check earlier ...