Variations in triple isotope composition of dissolved oxygen and primary production in a subtropical reservoir

Jurikova, Hana; Guha, Tania; Abe, Osamu; Shiah, Fuh-Kwo; Wang, Chung-Ho; Liang, Mao-Chang

doi:10.5194/bg-13-6683-2016

Articles | Volume 13, issue 24

https://doi.org/10.5194/bg-13-6683-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/bg-13-6683-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 13, issue 24

Research article

|

22 Dec 2016

Research article |

| 22 Dec 2016

Variations in triple isotope composition of dissolved oxygen and primary production in a subtropical reservoir

Hana Jurikova, Tania Guha, Osamu Abe, Fuh-Kwo Shiah, Chung-Ho Wang, and Mao-Chang Liang

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Jul 2016	3	2	0	5
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Sep 2016	2	1	0	3
Oct 2016	1	2	0	3
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Jul 2024	18	7	3	28
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Apr 2025	32	10	0	42
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Aug 2025	22	11	1	34
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Oct 2025	20	16	2	38
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Cumulative views and downloads (calculated since 17 Feb 2016)

Month	HTML	PDF	XML	Total
Feb 2016	66	21	0	87
Mar 2016	27	15	0	42
Apr 2016	21	5	0	26
May 2016	17	5	0	22
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Jul 2016	3	2	0	5
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Oct 2016	1	2	0	3
Nov 2016	2	1	0	3
Dec 2016	69	15	3	87
Jan 2017	55	28	3	86
Feb 2017	19	11	2	32
Mar 2017	14	7	1	22
Apr 2017	22	10	1	33
May 2017	32	14	0	46
Jun 2017	19	8	2	29
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Feb 2025	24	11	3	38
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Apr 2025	32	10	0	42
May 2025	14	4	0	18
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Aug 2025	22	11	1	34
Sep 2025	30	12	2	44
Oct 2025	20	16	2	38
Nov 2025	31	19	3	53

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Short summary

Life on Earth is directly or indirectly linked to primary production (PP), the quantification of which poses a challenge. In our study we use the oxygen isotopes and oxygen–argon ratios technique to estimate PP in situ. To date this method has been used to assess PP in the ocean and we expand on its application to freshwater systems. Providing that the physical structure of the water column is constrained, this method presents a powerful tracer for atmospheric vs. photosynthetic oxygen input.