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Article

Phytoplankton Community in the Western South China Sea in Winter and Summer

1
College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
2
Research Centre for Indian Ocean Ecosystem, Tianjin University of Science and Technology, Tianjin 300457, China
3
College of Marine Science and Technology, China University of Geosciences (Wuhan), Wuhan 430074, China
*
Author to whom correspondence should be addressed.
Academic Editor: Bo Kyung Kim
Water 2021, 13(9), 1209; https://doi.org/10.3390/w13091209
Received: 9 February 2021 / Revised: 5 April 2021 / Accepted: 9 April 2021 / Published: 27 April 2021
(This article belongs to the Special Issue Marine Nitrogen Fixation and Phytoplankton Ecology)
Phytoplankton are known as important harbingers of climate change in aquatic ecosystems. Here, the influence of the oceanographic settings on the phytoplankton community structure in the western South China Sea (SCS) was investigated during two seasons, i.e., the winter (December 2006) and summer (August–September, 2007). The phytoplankton community was mainly composed of diatoms (192 taxa), dinoflagellates (109 taxa), and cyanobacteria (4 taxa). The chain-forming diatoms and cyanobacteria Trichodesmium were the dominants throughout the study period. The phytoplankton community structure displayed distinct variation between two seasons, shifting from a diatom-dominated regime in winter to a cyanobacteria-dominated system in summer. The increased abundance of overall phytoplankton and cyanobacteria in the water column during the summer signifies the impact of nutrient advection due to upwelling and enriched eddy activity. That the symbiotic cyanobacteria–diatom (Rhizosolenia–Richelia) association was abundant during the winter signifies the influence of cool temperature. On the contrary, Trichodesmium dominance during the summer implies its tolerance to increased temperature. Overall, the two seasonal variations within the local phytoplankton community in the western SCS could simulate their community shift over the forthcoming climatic conditions. View Full-Text
Keywords: South China Sea; upwelling; eddy; diatom; Trichodesmium; Rhizosolenia–Richelia South China Sea; upwelling; eddy; diatom; Trichodesmium; Rhizosolenia–Richelia
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MDPI and ACS Style

Ding, C.; Sun, J.; Narale, D.D.; Liu, H. Phytoplankton Community in the Western South China Sea in Winter and Summer. Water 2021, 13, 1209. https://doi.org/10.3390/w13091209

AMA Style

Ding C, Sun J, Narale DD, Liu H. Phytoplankton Community in the Western South China Sea in Winter and Summer. Water. 2021; 13(9):1209. https://doi.org/10.3390/w13091209

Chicago/Turabian Style

Ding, Changling; Sun, Jun; Narale, Dhiraj D.; Liu, Haijiao. 2021. "Phytoplankton Community in the Western South China Sea in Winter and Summer" Water 13, no. 9: 1209. https://doi.org/10.3390/w13091209

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