Production of fluorescent dissolved organic matter in Arctic Ocean sediments

Little is known about the production of fluorescent dissolved organic matter (FDOM) in the anoxic oceanic sediments. In this study, sediment pore waters were sampled from four different sites in the Chukchi-East Siberian Seas area to examine the bulk dissolved organic carbon (DOC) and their optical...

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Bibliographic Details
Published in:Scientific reports 2016-12, Vol.6 (1), p.39213-39213, Article 39213
Main Authors: Chen, Meilian, Kim, Ji-Hoon, Nam, Seung-Il, Niessen, Frank, Hong, Wei-Li, Kang, Moo-Hee, Hur, Jin
Format: Article
Language:English
Subjects:
704/47/4113
704/829/827
96/35
Alkalinity
Dissolved organic carbon
Dissolved organic matter
Geosciences: 450
Humanities and Social Sciences
Marine geology: 466
Mathematics and natural science: 400
Methane
multidisciplinary
Nutrients
Oceans
Optical properties
Particulate organic carbon
Particulate organic matter
Science
Sediments
Sulfate reduction
Sulfates
VDP
Water column
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Summary:Little is known about the production of fluorescent dissolved organic matter (FDOM) in the anoxic oceanic sediments. In this study, sediment pore waters were sampled from four different sites in the Chukchi-East Siberian Seas area to examine the bulk dissolved organic carbon (DOC) and their optical properties. The production of FDOM, coupled with the increase of nutrients, was observed above the sulfate-methane-transition-zone (SMTZ). The presence of FDOM was concurrent with sulfate reduction and increased alkalinity (R 2  > 0.96, p   0.95, p  
ISSN:2045-2322
2045-2322
DOI:10.1038/srep39213