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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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    Abstract - Issue Mar 2015, 36 (2)                                     Back


nstantaneous and historical temperature effects on a-pinene

Evaluation of phytoplankton community composition in the

eutrophic Masan Bay by HPLC pigment analysis

 

 

Jeong Bae Kim1, Sokjin Hong1, Won-Chan Lee1, Yong-Woo Lee2*,Hyung Chul Kim1 and Yoonsik Cho1

1Marine Environment Research Division, National Fisheries Research and Development Institute, Busan, 619 705, Korea

2Marine Environment Monitoring Team, Korea Marine Environment Management Corporation, Busan, 606 806, Korea

*Corresponding Author?s Email : wbluesea@koem.or.kr

 

 

Publication Data

Paper received:

04 October 2013

 

Revised received:

25 March 2014

 

Re-revised received:

05 June 2014

 

Accepted:

20 June 2014

 

 

Abstract

To assess the spatiotemporal changes in phytoplankton community composition in relation to the environment of Masan Bay, a semi-enclosed bay on the southern coast of Korea, photosynthetic pigments and environmental variables were analyzed in seawater, every month between March and November 2010. The level of dissolved inorganic nutrients was highest between July and September when the freshwater influx was at its peak, whereas chlorophyll a level was highest in April and August. Phosphate concentration was low in April (average: 0.22 ? 0.17 μM), indicating the role of phosphate as a growth-limiting factor for phytoplankton. The results of pigment analysis indicate that dinoflagellate blooms occurred under favorable conditions, where competition with diatoms occurred. Fucoxanthin- and chlorophyll b-containing phytoplankton dominated the surface layer of Masan Bay from July to September. The composition of phytoplankton community in Masan Bay changed dramatically each month according to variations in the amount and composition of nutrients introduced through surface runoff.      

 

 

 Key words

Phytoplankton, Nutrient, Masan Bay, HPLC 

 

 

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