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Plankton Community Composition Related to Marine Environmental Factors in Haengam Bay

행암만 해양환경요인과 플랑크톤 군집구조의 변동

Kim, Jeong Bae;Hong, Sokjin;Lee, Won-Chan;Kim, Hyung Chul;Lee, Yong-Woo;Youn, Seok-Hyun;Cho, Yoonsik
김정배;홍석진;이원찬;김형철;이용우;윤석현;조윤식

  • Received : 2014.08.29
  • Accepted : 2014.12.11
  • Published : 2014.12.31

Abstract

We analyzed with HPLC (High Performance Liquid Chromatography) analysis photosynthetic pigments and environmental factors, microscopic observations of the phytoplankton and zooplankton in the seawater every month from February 2009 to November 2010 in Haengam Bay. The level of dissolved inorganic nutrients was the highest between July and September, when freshwater influx was at its peak, whereas chlorophyll a levels were the highest in April and August. Also, phytoplankton pigment concentration increased when dissolved inorganic nutrients are carried into nearshore waters by rainfall runoff. Based on identification of phytoplankton and photosynthetic pigments results, diatoms were mainly dominant while dinoflagellate populations increased at July and August 2009, May 2010. The zooplankton communities are dominated in terms of Noctiluca scintillans. The contribution of Noctiluca scintillans in 2010 accounts for approximately 77.3% of the total zooplankton. Distribution patterns over time of zooplankton in the seasonal distribution of phytoplankton showed a different pattern.

Keywords

Haengam Bay;Phytoplankton;Zooplankton;HPLC;Nutrient;Noctiluca scintillans

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Acknowledgement

Supported by : 국립수산과학원