Biogeosciences
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Articles | Volume 17, issue 4
Articles | Volume 17, issue 4
https://doi.org/10.5194/bg-17-1133-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/bg-17-1133-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 4
Research article
 | 
28 Feb 2020
Research article |  | 28 Feb 2020

Distribution and behaviour of dissolved selenium in tropical peatland-draining rivers and estuaries of Malaysia

Yan Chang, Moritz Müller, Ying Wu, Shan Jiang, Wan Wan Cao, Jian Guo Qu, Jing Ling Ren, Xiao Na Wang, En Ming Rao, Xiao Lu Wang, Aazani Mujahid, Mohd Fakharuddin Muhamad, Edwin Sien Aun Sia, Faddrine Holt Ajon Jang, and Jing Zhang

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Short summary
Selenium (Se) is an essential micronutrient for many organisms. Our knowledge of dissolved Se biogeochemical cycling in tropical estuaries is limited. We have found that dissolved organic Se (DOSe) was the major speciation in the peat-draining rivers and estuaries. The DOSe fractions may be associated with high molecular weight peatland-derived carbon compounds and may photodegrade to more bioavailable forms once transported to oligotrophic coastal water, where they may promote productivity.
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Biogeochemical processes in highly dynamic peat-draining rivers...
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