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Spatial and Temporal Variability of Phytoplankton in Relation to Environmental Factors in Youngil Bay
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 Title & Authors
Spatial and Temporal Variability of Phytoplankton in Relation to Environmental Factors in Youngil Bay
Shim, Jeong-Min; Kwon, Ki-Young; Jeong, Hee-Dong; Choi, Yong-Kyu; Kim, Sang-Woo;
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We investigated the spatial and temporal variations of phytoplankton in Youngil Bay as well as the effect of water physico-chemical parameters. Water samples at three stations were collected and measured monthly from May to November in 2010. The taxa of phytoplankton observed in this study were classified as 33 Bacillariophyceae, 23 Dinophyceae, 1 Euglenophyceae, 2 Crysophyceae and 1 Cryptophyceae. The highest biomass of phytoplankton was observed at inner station in September, which was characterized high concentration of dissolved inorganic phosphate(DIP) in surface water after rainfall. Nutrient concentrations, chlorophyll-a and phytoplankton biomass values showed the marked trend to decrease from the inner bay to the outer bay. Pearson's correlation co-efficient between salinity and other water parameters including chlorophyll-a, pH and DIP showed the strong negative relationship r=-0.82, r=-0.78 and r=-0.75 (p<0.01), respectively. These results indicate that the water quality of Youngil Bay could be stimulated by nutrient enriched input from Hyeogsan River discharge, and the spatial and temporal distribution of phytoplankton biomass principally limited to DIP concentration from Hyeogsan river.
Phytoplankton;Chlorophyll-a;Nutrients;Pearson's correlation co-efficient;
 Cited by
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