1 Department of Microbiology and Immunology, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z3.
2 Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z4.
3 Department of Biology, Georgetown University, Washington, DC 20007, USA.
4 Department of Biology, Concordia University, Montreal, Quebec, Canada H4B 1R6.
5 Department of Civil Engineering, University of British Columbia, Vancouver, BC, Canada V6T 1Z4.
6 Department of Botany, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z4.
7 Department of Fisheries and Oceans Canada, Sidney, British Columbia, Canada V9L 6V9.
8 ECOSCOPE Training Program, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z4.
9 Peter Wall Institute for Advanced Studies, University of British Columbia, Canada V6T 1Z2.
10 Genome Science and Technology Program, University of British Columbia, Vancouver, BC, Canada V6T 1Z4.
11 Graduate Program in Bioinformatics, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z4.

A compendium of geochemical information from the Saanich Inlet water column.

Sci Data. 2017 10 31;4:170159

Authors: Torres-Beltrán M, Hawley AK, Capelle D, Zaikova E, Walsh DA, Mueller A, Scofield M, Payne C, Pakhomova L, Kheirandish S, Finke J, Bhatia M, Shevchuk O, Gies EA, Fairley D, Michiels C, Suttle CA, Whitney F, Crowe SA, Tortell PD, Hallam SJ

Abstract

Extensive and expanding oxygen minimum zones (OMZs) exist at variable depths in coastal and open ocean waters. As oxygen levels decline, nutrients and energy are increasingly diverted away from higher trophic levels into microbial community metabolism, resulting in fixed nitrogen loss and production of climate active trace gases including nitrous oxide and methane. While ocean deoxygenation has been reported on a global scale, our understanding of OMZ biology and geochemistry is limited by a lack of time-resolved data sets. Here, we present a historical dataset of oxygen concentrations spanning fifty years and nine years of monthly geochemical time series observations in Saanich Inlet, a seasonally anoxic fjord on the coast of Vancouver Island, British Columbia, Canada that undergoes recurring changes in water column oxygenation status. This compendium provides a unique geochemical framework for evaluating long-term trends in biogeochemical cycling in OMZ waters.

PMID: 29087371 [PubMed]