Long-term variations of phytoplankton community in relations to environmental factors in Deep Bay, China, from 1994 to 2016

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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  • Rui Wang
  • Xiaowan Liu
  • Jiajun Wu
  • Tak-Cheung Wai
  • Pingping Shen


Original languageEnglish
Article number111010
Journal / PublicationMarine Pollution Bulletin
Online published29 Feb 2020
Publication statusPublished - Apr 2020


Long-term effects of environmental factors on phytoplankton community in Deep Bay, Hong Kong, were investigated from 1994 to 2016. Phytoplankton community experienced three important shifts: small flagellates and Chroomonas spp. dominated from 1994 to 2006. Heavy blooms of diatoms Skeletonema costatum and Thalassiosira spp. occurred and became the dominant species between 2007 and 2009. Phytoplankton community was dominated by small flagellates and Chroomonas spp. from 2010 to 2015, and their abundance was much higher than earlier periods. Abundance of Chroomonas spp. decreased sharply in 2016, and Thalassiosira spp. became the dominant species. Phytoplankton community changed from consisting mainly of small flagellates and Chroomonas spp. to more diatoms, changing from ~90% to ~45% for other species abundance and from <10% to ~55% for diatoms. Nitrite, 5-day biochemical oxygen demand, salinity, suspended solids and turbidity were more influential on phytoplankton variation (23.65% explained by all the variables).

Research Area(s)

  • Deep Bay, Environmental factors, Multivariate analysis, Phytoplankton

Citation Format(s)