A compendium of geochemical information from the Saanich Inlet water column

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...

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Veröffentlicht in:Scientific data 2017-10, Vol.4 (1), p.170159-170159, Article 170159
Hauptverfasser: Torres-Beltrán, Mónica, Hawley, Alyse K., Capelle, David, Zaikova, Elena, Walsh, David A., Mueller, Andreas, Scofield, Melanie, Payne, Chris, Pakhomova, Larysa, Kheirandish, Sam, Finke, Jan, Bhatia, Maya, Shevchuk, Olena, Gies, Esther A., Fairley, Diane, Michiels, Céline, Suttle, Curtis A., Whitney, Frank, Crowe, Sean A., Tortell, Philippe D., Hallam, Steven J.
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Sprache:eng
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Zusammenfassung: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. Design Type(s) time series design • data integration objective • observation design Measurement Type(s) hydrographic profiling • nutrient level • mass of biological material • dissolved gases • water oxygen concentration Technology Type(s) data acquisition system Factor Type(s) sampling depth • temporal_interval Sample Characteristic(s) Saanich Inlet • coastal sea water Machine-accessible metadata file describing the reported data (ISA-Tab format)
ISSN:2052-4463
2052-4463
DOI:10.1038/sdata.2017.159