Community Structure of Phytoplankton and Its Relation with Environmental Factors in Xinhua Lake of China

doi:10.11983/CBB15094

Abstract

Abstract: We investigated the community structure of phytoplankton in Xinhua Lake from May to October in 2014, and analyzed its relationship with environmental factors. Basic data were provided for dynamically monitoring the lake condi- tion. A total of 135 phytoplankton taxa belonging to 5 phyla and 63 genera were observed: 56 Bacillariophyta, 49 Chlorophyta, 15 Cyanophyta, 12 Euglenophyta, and 3 Pyrrhophyta. We found 24 dominant taxa: 14 Chlorophyta, 6 Cyanophyta, 3 Bacillariophyta, and only 1 Euglenophyta. All these dominant taxa showed seasonal alteration in preva- lence. Xinhua Lake was dominated by Chlorophyta and Bacillariophyta. The cell density of the phytoplankton ranged from 37.57×10⁶ to 72.37×10⁶ cells·L^-1, and the mean phytoplankton abundance was 52.13×10⁶ cells·L^-1. The Simpson, Shan- non and Pielou indexes for the phytoplankton community were 0.642-0.928, 1.698-3.1, and 0.324-0.561, respectively. These three indexes showed the same variation tendency, with the highest value found in autumn and the lowest in spring. Water temperature, pH, total phosphorus, biochemical oxygen demand, dissolved oxygen and hydrodynamic force were the main environmental factors affecting the phytoplankton community structure in this lake.

Zhishun Xiao, Cong Lin, Shuang Yang, Yan Liu, Yawen Fan. Community Structure of Phytoplankton and Its Relation with Environmental Factors in Xinhua Lake of China[J]. Chinese Bulletin of Botany, 2016, 51(3): 353-362.

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URL: https://www.chinbullbotany.com/EN/10.11983/CBB15094

https://www.chinbullbotany.com/EN/Y2016/V51/I3/353

Figures/Tables 8

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Season	Sampling sites	SD (cm)	Tempera- ture (°C)	SpCond (μS·cm^-1)	DO (mg·L^-1)	Chlorophyll a (mg·L^-1)	NH₃-N (mg·L^-1)	TN (mg·L^-1)	TP (mg·L^-1)	COD (mg·L^-1)	BOD (mg·L^-1)	pH
Spring	I	19	32.5	3770	4.18	10.20	0.64	2.9	0.56	8.56	21.00	9.06
	II	18	31.4	3930	3.74	11.31	0.72	2.75	0.36	9.53	20.30	9.08
	III	16	33.7	3710	3.34	10.35	0.84	3.24	0.75	9.87	19.80	8.97
	IV	18	28.6	3370	3.02	15.40	0.70	2.70	0.38	10.31	17.90	8.91
	V	17	33.3	3730	4.33	11.65	0.70	3.55	0.42	9.00	18.30	9.01
	VI	20	27.4	3550	4.27	11.58	0.68	2.57	0.45	9.00	17.88	8.83
Summer	I	23	29.6	3850	5.75	13.90	0.65	2.64	1.12	8.73	9.50	9.41
	II	22	32.2	3850	7.61	12.70	0.69	2.55	0.71	9.01	10.20	9.39
	III	24	28.5	4010	6.70	14.80	0.84	3.52	0.94	11.4	18.10	9.42
	IV	23	32.6	3990	6.24	16.50	0.45	3.02	0.9	11.9	20.80	9.39
	V	18	33.6	3990	7.35	12.10	0.84	3.31	0.86	9.59	11.30	9.45
	VI	26	31.2	3960	8.20	11.80	0.83	3.15	0.82	9.01	8.70	9.43
Autumn	I	18	11.6	3860	6.25	11.90	0.63	2.88	0.67	10.3	20.60	8.39
	II	18	13.4	3940	6.05	12.80	0.75	2.95	0.45	10.2	18.10	7.79
	III	16	16.8	4100	5.54	12.90	0.84	3.01	0.76	14.2	23.90	8.45
	IV	16	14.0	3450	5.54	14.30	0.95	4.02	0.60	10.0	18.90	7.45
	V	16	13.5	4100	7.90	11.20	0.56	2.58	0.47	10.4	21.50	7.95
	VI	18	13.2	4050	7.96	12.00	0.53	2.49	0.58	10.6	20.10	7.96

Season	Sampling sites	SD (cm)	Tempera- ture (°C)	SpCond (μS·cm^-1)	DO (mg·L^-1)	Chlorophyll a (mg·L^-1)	NH₃-N (mg·L^-1)	TN (mg·L^-1)	TP (mg·L^-1)	COD (mg·L^-1)	BOD (mg·L^-1)	pH
Spring	I	19	32.5	3770	4.18	10.20	0.64	2.9	0.56	8.56	21.00	9.06
	II	18	31.4	3930	3.74	11.31	0.72	2.75	0.36	9.53	20.30	9.08
	III	16	33.7	3710	3.34	10.35	0.84	3.24	0.75	9.87	19.80	8.97
	IV	18	28.6	3370	3.02	15.40	0.70	2.70	0.38	10.31	17.90	8.91
	V	17	33.3	3730	4.33	11.65	0.70	3.55	0.42	9.00	18.30	9.01
	VI	20	27.4	3550	4.27	11.58	0.68	2.57	0.45	9.00	17.88	8.83
Summer	I	23	29.6	3850	5.75	13.90	0.65	2.64	1.12	8.73	9.50	9.41
	II	22	32.2	3850	7.61	12.70	0.69	2.55	0.71	9.01	10.20	9.39
	III	24	28.5	4010	6.70	14.80	0.84	3.52	0.94	11.4	18.10	9.42
	IV	23	32.6	3990	6.24	16.50	0.45	3.02	0.9	11.9	20.80	9.39
	V	18	33.6	3990	7.35	12.10	0.84	3.31	0.86	9.59	11.30	9.45
	VI	26	31.2	3960	8.20	11.80	0.83	3.15	0.82	9.01	8.70	9.43
Autumn	I	18	11.6	3860	6.25	11.90	0.63	2.88	0.67	10.3	20.60	8.39
	II	18	13.4	3940	6.05	12.80	0.75	2.95	0.45	10.2	18.10	7.79
	III	16	16.8	4100	5.54	12.90	0.84	3.01	0.76	14.2	23.90	8.45
	IV	16	14.0	3450	5.54	14.30	0.95	4.02	0.60	10.0	18.90	7.45
	V	16	13.5	4100	7.90	11.20	0.56	2.58	0.47	10.4	21.50	7.95
	VI	18	13.2	4050	7.96	12.00	0.53	2.49	0.58	10.6	20.10	7.96

Phylum	Species
Bacillariophyta	Cyclotella meneghiniana Kützing
	Coscinodiscus lacustris Grun.
	Nitzschia palea (Kütz.) W. Smith
Cyanophyta	Anabaena azotica Ley.
	Raphidiopsis curvata Fritsch et Rich
	Chroococcus minutus (Kütz.) Näg.
	Arthrospira maxima Setch. et Gardner
	Merismopedia minima G. Beck
	Anabaenopsis circularis (G. S. West) Wolosz. et Miller
Chlorophyta	Tetraëdron minimum (A. Braun) Hansgirg
	Cosmarium depressum (Näg.) Lundell
	Scenedesmus bijuga (Turp.) Lagerheim
	Kirchneriella lunaris (Kirch. ) Moebius
	S. abundans (Kirchn.) Chodat
	Chlorella vulgaris Beijerinck
	C. subprotumidum Nordstedt
	Pediastrum boryanum (Turp.) Meneghini
	Oocystis elliptica W. West
	O. solitaria Wittrock
	S. quadricauda (Turp.) Brébisson
	S. protuberans Fritsch.
	Ankistrodesmus angustus Bernard
	O. parva West & West
Euglenophyta	Euglena viridis Ehrenberg

Phylum	Species
Bacillariophyta	Cyclotella meneghiniana Kützing
	Coscinodiscus lacustris Grun.
	Nitzschia palea (Kütz.) W. Smith
Cyanophyta	Anabaena azotica Ley.
	Raphidiopsis curvata Fritsch et Rich
	Chroococcus minutus (Kütz.) Näg.
	Arthrospira maxima Setch. et Gardner
	Merismopedia minima G. Beck
	Anabaenopsis circularis (G. S. West) Wolosz. et Miller
Chlorophyta	Tetraëdron minimum (A. Braun) Hansgirg
	Cosmarium depressum (Näg.) Lundell
	Scenedesmus bijuga (Turp.) Lagerheim
	Kirchneriella lunaris (Kirch. ) Moebius
	S. abundans (Kirchn.) Chodat
	Chlorella vulgaris Beijerinck
	C. subprotumidum Nordstedt
	Pediastrum boryanum (Turp.) Meneghini
	Oocystis elliptica W. West
	O. solitaria Wittrock
	S. quadricauda (Turp.) Brébisson
	S. protuberans Fritsch.
	Ankistrodesmus angustus Bernard
	O. parva West & West
Euglenophyta	Euglena viridis Ehrenberg

Season	Index	Sampling sites						Average value
Season	Index	I	II	III	IV	V	VI	Average value
Spring	H′	2.407	2.205	2.144	1.845	1.698	2.005	2.051
	D	0.808	0.792	0.763	0.670	0.642	0.734	0.735
	J	0.469	0.426	0.390	0.342	0.324	0.382	0.389
Summer	H′	2.345	2.510	2.236	2.097	2.471	2.111	2.295
	D	0.810	0.851	0.779	0.779	0.771	0.859	0.748
	J	0.441	0.493	0.432	0.406	0.499	0.412	0.447
Autumn	H′	2.876	3.065	2.899	3.100	3.082	2.936	2.993
	D	0.900	0.925	0.915	0.928	0.927	0.911	0.918
	J	0.487	0.535	0.561	0.534	0.549	0.541	0.534