珠江口球形棕囊藻(Phaeocysis globosa)赤潮后期的浮游植物群落结构特征研究

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Abstract

The characteristics of phytoplankton community structure in the Pearl River Estuary were studied at the late stage of a Phaeocystis globosa bloom from November 30 to December 2, 2009. Totally 118 species of microalgae belonging to six phyla were identified in the study. Among them, 67 species belonged to Bacillariophyta; 33 species belonged to Chlorophyta; 6 species belonged to Dinoflagellate; 5 species belonged to Cyanophyta; 5 species belonged to Euglenophyta; 2 species belonged to Chrysophyta. During the investigation, the diameter of optical colonies ranged from 0.5～2.5 cm, with an average density of 1208 colonies·m^-3; and the average density under microscopic observation reached to 675000 colonies·m^-3. The sudden rising of temperature from the mid to end of November might be the key factor causing the bloom. The: accompanying dominant species during the bloom were Skeletonema sp., Aulacoseira granulata, Cylindrotheca closterium and Euglena tritella.

Key words： the Pearl River Estuary Phaeocystis globosa bloom phytoplankton

Received: 25 April 2010

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	Articles by authors
	WANG Chao
	LI Xin-hui
	LAI Zi-ni
	FANG Zhen
	WU Qian
	HU Xi-yong
	PANG Shi-xun

Cite this article:

WANG Chao,LI Xin-hui,LAI Zi-ni, et al. Study on phytoplankton community structure at the late stage of a Phaeocystis globosa bloom in the Pearl River Estuary[J]. , 2010, 29(2): 140-146.

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http://www.ecolsci.com/EN/ OR http://www.ecolsci.com/EN/Y2010/V29/I2/140

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