Fluxes and Retention of Nutrients and Organic Carbon in Manko Estuary, Okinawa, Japan: Influence of River Discharge Variations

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dc.contributor.authorShilla, Daniel
dc.date.accessioned2016-07-08T12:31:47Z
dc.date.available2016-07-08T12:31:47Z
dc.date.issued2014
dc.descriptionFull text can be accessed at http://www.tandfonline.com/doi/abs/10.1080/19475721.2014.928369en_US
dc.description.abstractEstuaries are often considered important filters for inorganic and organic nutrients, as they are located between the land and sea. This study reports on the fluvial fluxes and estuarine transformations and retention of dissolved nutrients (total oxidized nitrogen [TON = NO2− and NO3−]), NH4+, PO43−, and dissolved organic carbon (DOC) in Manko estuary, Okinawa, Japan. The transport and transformation of dissolved nutrients and DOC varied widely among the eight conducted surveys due to variations in freshwater discharge and subsequent flushing times. Under high fluvial discharge, particularly during the May–June rainy season, the transport of nutrients and DOC accounted for up to 70%, 88%, 93%, and 53% of the annual transport of TON, NH4+, PO43−, and DOC, respectively. The flushing times of river water into the estuary, which varied from 0.5 to 46 days, were important in determining the degree to which fluvial nutrients were transformed and retained within the estuary. The effect of long flushing times was evident during the dry months (December–March), when biological and geochemical processes within the estuary removed most of the fluvial nutrients and DOC.en_US
dc.identifier.citationShilla, D., 2014. Fluxes and retention of nutrients and organic carbon in Manko estuary, Okinawa, Japan: influence of river discharge variations. Advances in Oceanography and Limnology, 5(2), pp.141-163.en_US
dc.identifier.doi10.1080/19475721.2014.928369
dc.identifier.urihttp://hdl.handle.net/20.500.11810/2952
dc.language.isoenen_US
dc.subjectManko estuaryen_US
dc.subjectNutrientsen_US
dc.subjectFatty acidsen_US
dc.subjectFluxesen_US
dc.subjectOrganic matteren_US
dc.titleFluxes and Retention of Nutrients and Organic Carbon in Manko Estuary, Okinawa, Japan: Influence of River Discharge Variationsen_US
dc.typeJournal Articleen_US
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