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BG | Articles | Volume 16, issue 17
Biogeosciences, 16, 3351–3376, 2019
https://doi.org/10.5194/bg-16-3351-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Biogeosciences, 16, 3351–3376, 2019
https://doi.org/10.5194/bg-16-3351-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 05 Sep 2019

Research article | 05 Sep 2019

Changes in gross oxygen production, net oxygen production, and air-water gas exchange during seasonal ice melt in Whycocomagh Bay, a Canadian estuary in the Bras d'Or Lake system

Cara C. Manning et al.

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We measured rates of biological activity and gas exchange in a Canadian estuary during ice melt. We quantified gas exchange using inert, deliberately released tracers and found that the gas transfer rate at > 90 % ice cover was 6 % of the rate for nearly ice-free conditions. We measured oxygen concentration and isotopic composition and used the data to detect changes in the rates of photosynthesis and respiration (autotrophy and heterotrophy) as the ice melted.
We measured rates of biological activity and gas exchange in a Canadian estuary during ice melt....
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