Photomineralization of organic carbon in a eutrophic, semiarid estuary

Simple item page
dc.contributor.authorWang, Hongjie
dc.contributor.authorHu, Xinping
dc.contributor.authorWetz, Michael
dc.contributor.authorLu, Kaijun
dc.contributor.authorWang, Hongjie
dc.contributor.authorHu, Xinping
dc.contributor.authorWetz, Michael
dc.contributor.authorLu, Kaijun
dc.creator.orcidhttps://orcid.org/0000-0003-0640-4383
dc.creator.orcidhttps://orcid.org/0000-0002-0613-6545
dc.creator.orcidhttps://orcid.org/0000-0001-7509-4900
dc.creator.orcidhttps://orcid.org/0000-0003-0640-4383
dc.creator.orcidhttps://orcid.org/0000-0002-0613-6545
dc.creator.orcidhttps://orcid.org/0000-0001-7509-4900
dc.date.accessioned2019-12-20T16:23:05Z
dc.date.accessioned2019-12-20T16:23:05Z
dc.date.available2019-12-20T16:23:05Z
dc.date.available2019-12-20T16:23:05Z
dc.date.issued2020-01-01
dc.date.issued2020-01-012020-01-01
dc.description.abstractThe effect of photomineralization on the carbon cycle in a eutrophic, semiarid estuary (Baffin Bay, Texas) was investigated using closed-system incubations. Photochemical production rate of dissolved inorganic carbon ranged from 0.16 to 0.68 µM hr-1, with a daily removal of 0.3%~1.5% of the standing stock of dissolved organic carbon (DOC). The photomineralization rate was negatively correlated with the chlorophyll a concentration, suggesting that the plankton-derived DOC was less photoreactive to solar radiation. The stable carbon isotope composition (δ13C~-18.6‰) of degraded DOC, as calculated using the DIC “Keeling” plot, further indicated that the high photochemical lability of 13C-enriched DOC in this semiarid environment. Our finding showed that the photomineralization of 13C-enriched DOC is an important component of the carbon cycle in this system, and this process does not necessarily remove 13C-depleted organic carbon as observed in other coastal areas.en_US
dc.identifier.issn2378-2242
dc.identifier.issn2378-22422378-2242
dc.identifier.urihttps://hdl.handle.net/1969.6/87603
dc.identifier.urihttps://hdl.handle.net/1969.6/87603https://hdl.handle.net/1969.6/87603
dc.language.isoen_USen_US
dc.publisherLimnology and Oceanography Lettersen_US
dc.rightsAttribution 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/us/*
dc.subjectphotomineralizationen_US
dc.subjectestuaryen_US
dc.subjectstable carbon isotopeen_US
dc.subjectdissolved organic carbonen_US
dc.titlePhotomineralization of organic carbon in a eutrophic, semiarid estuaryen_US
dc.typeArticleen_US

Files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
WangPhotomineralization.pdf
Size:
943.27 KB
Format:
Adobe Portable Document Format
Description:
Download

License bundle

Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.72 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

COS Faculty Works