## 3 Results
### Physical, Chemical, and Phytoplankton Properties (In Situ)

Table 1: Physical properties of, and nutrient concentrations in surface water at the sampling stations (Sts A, B, and C) in the freshwater zone of the Yeongsan River estuary: Temp, water temperature; Turb, turbidity; PAR, photosynthetically active radiation at 1.1 m; DIN, dissolved inorganic nitrogen (NO\({}_{2}\)\({}^{-}\) + NO\({}_{3}\)\({}^{-}\) + NH\({}_{4}\)\({}^{+}\)); DIP, dissolved inorganic phosphate (PO\({}_{4}\)\({}^{-}\)); DSi, dissolved inorganic silicate. \begin{table}
\begin{tabular}{c c c c c c c c c c c} \hline \hline
**Sampling Date** & **Station** & **Total** & **Net** & **Name** & **Disbands** & **Cllowe** & **Cyne** & **Copy** & **Other** & **Dominant Species** \\ \hline \multirow{4}{*}{May 2009} & A & 10.84 & 0.38 (\(\ell\)0.1) & 10.08 (\(\ell\)0.4) & 500 & 500 & (33.6) & (170) & 200 (37.1) & 200 (33.8) & \multicolumn{1}{c}{Celeticurticomponent} \\  & A & 10.84 & 0.38 (\(\ell\)0.1) & 10.08 (\(\ell\)0.4) & 520 & 500 & (33.6) & (12.1) & 200 (37.1) & 200 (33.8) & \multicolumn{1}{c}{Celeticurticomponent} \\  & B & 6.70 & 0.10 (\(\ell\)0.5) & 6.60 (\(\ell\)0.5) & 100 & (120) & 250 (40.7) & 0 & \multicolumn{1}{c}{Teleticurticomponent} \\  & C & 4.10 & 2.22 (\(\ell\)0.53) & 1.80 (\(\ell\)3.7) & 65 & 65 & 65 & 130 (42.6) & 0 & \multicolumn{1}{c}{Melevomponent} \\  & A & 14.36 & 3.36 & 1.40 & 1.40 & 22 & 120 & 0 & 27 & \multicolumn{1}{c}{Melevomponent} \\  & & 27.6) & (7.24) & (6.98) & (9.9) & (27.7) & 0 & 69.9) & \multicolumn{1}{c}{(21.1)} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} \\ Aug 2009 & B & 6.50 & (6.2) & (6.3) & (6.3) & (6.3) & (6.2) & 0 & \multicolumn{1}{c}{(33.7)} & \multicolumn{1}{c}{(24.2)} & \multicolumn{1}{c}{} \\  & C & 4.68 & (5.3) & (6.4) & (5.0) & (5.3) & (6.7) & 0 & \multicolumn{1}{c}{(2.0)} & \multicolumn{1}{c}{(26.7)} & \multicolumn{1}{c}{(26.7)} \\  & C & 4.68 & (5.3) & (6.4) & (5.0) & (5.3) & (6.7) & 0 & \multicolumn{1}{c}{(2.0)} & \multicolumn{1}{c}{(26.7)} \\ \cline{2-11}  & A & 13.24 & 13.38 & 11.88 & 57 & 0 & 0 & 153 & 128 & \multicolumn{1}{c}{Teleonic} \\  & A & 10.33 & (0.99) & (27.0) & 0 & 0 & (45.8) & (37.3) & \multicolumn{1}{c}{(35.7)} & \multicolumn{1}{c}{(35.7)} \\ Nov 2009 & B & 5.54 & 0.18 & 5.38 & 40 & 0 & 0 & 130 & \multicolumn{1}{c}{(33.1)} & \multicolumn{1}{c}{Teleonic} \\  & C & 11.37 & (1.03) & (27.3) & 3 & 0 & 0 & 130 & \multicolumn{1}{c}{(33.1)} & \multicolumn{1}{c}{Teleonic} \\  & C & 3.26 & (5.4) & (0.4) & (0.5) & (2.6) & (1.6) & (55.7) & (1.6) & \multicolumn{1}{c}{(27.8)} \\ \cline{2-11}  & A & 109.04 & 9.44 & 99.00 & 2560 & 0 & 0 & 110 & 48 & \multicolumn{1}{c}{(33.1)} & \multicolumn{1}{c}{(33.1)} & \multicolumn{1}{c}{(33.1)} \\ Jun 2010 & B & 50.96 & (3.1) & (0.67) & (0.12) & (0.7) & 0 & (47.9) & \multicolumn{1}{c}{(2.2)} & \multicolumn{1}{c}{(35.3)} \\  & C & 7.28 & (3.4) & (0.66) & (0.15) & (1.1) & (0.6) & (0.6) & (0.6) & \multicolumn{1}{c}{(2.0)} & \multicolumn{1}{c}{(26.7)} \\ \cline{2-11}  & A & 48.28 & 21.34 & 130 & 20 & 0 & 250 & 30 & \multicolumn{1}{c}{(33.1)} & \multicolumn{1}{c}{(33.1)} \\ Mar 2010 & A & 26.12 & (18.7) & (0.13) & (0.78) & (4.2) & 0 & (15.1) & (1.0) & \multicolumn{1}{c}{(33.5)} \\  & C & 8.08 & (1.26) & 0.52 & 200 & 0 & 10 & 150 & \multicolumn{1}{c}{(26.7)} & \multicolumn{1}{c}{(26.7)} \\ Feb 2011 & A & 8.28 & (17.9) & (02.1) & (06.7) & (2.9) & (23.5) & (6.9) & \multicolumn{1}{c}{(23.9)} & \multicolumn{1}{c}{(23.9)} \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Total, net- and nanosized chlá concentrations (ug L\({}^{-1}\)) and cell abundance (cells mL\({}^{-1}\)) in taxonomic groups and their contribution percentages (% in parenthesis) in the surface water at stations A, B, and C in the freshwater zone of the Yeonggan River estuary: S Date, Sampling date, Chloro, Chlorophytes, Cyano, Cyanobacteria; Crypto, Cryptophytes: Others, Other groups. Figure 3: Size-fractionated chl \(a\) concentration (ug L\({}^{-1}\)) and contribution percentage (%) of nano-size class during the mesocosm experiments for water samples collected at St. A, B, and C in November 2009 and January 2010.