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http://dx.doi.org/10.7850/jkso.2016.21.2.58

Re-evaluation of Ammonium Data in Seawater: an Unique Short-Term Index  

JEONG, YONG HOON (SERC, Kunsan National University)
YANG, JAE SAM (Department of Oceanography, Kunsan National University)
Publication Information
The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY / v.21, no.2, 2016 , pp. 58-66 More about this Journal
Abstract
We have evaluated the ammonium data in seawater as a potential short-term index for marine environment through the following steps. 1. reviewing of chemical characteristics of ammonium in seawater, 2. comparative relationships of ammonium data with other water quality indices such as DO, COD, and nutrients from Typical Marine Environment(TME) and Special Marine Environment(SME). Ammonium data generally represent negative correlation with DO, while positive correlation with COD. In particular, under frequent cases of seawater conditions showing similar concentration of COD or DO, we have limited choice of explanation for such situation. However ODIN(ODIN/RDIN) or RDIN(RDIN/TDIN) ratio could provide advanced information to understand these seawater conditions. Based on these results, we suggest ammonium data as a potential short-period index for transilient marine environment, such as benthic flux of bottom sediment, hypoxia, and algal bloom. Under overcoming several handicaps, ammonium data could be an useful tool for better understand short transformation of marine environment.
Keywords
re-evaluation; short-term index; ammonium; seawater; hypoxia; algal bloom;
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