Changes in phytoplankton communities along nutrient gradients in Lake Taihu: evidence for nutrient reduction strategies

Ying Ai; Yonghong Bi; Zhengyu Hu

doi:10.1007/s00343-015-4079-9

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Changes in phytoplankton communities along nutrient gradients in Lake Taihu: evidence for nutrient reduction strategies

OriginalPaper | Updated：2023-05-16

- Changes in phytoplankton communities along nutrient gradients in Lake Taihu: evidence for nutrient reduction strategies
- Changes in phytoplankton communities along nutrient gradients in Lake Taihu: evidence for nutrient reduction strategies
- 海洋湖沼学报（英文） 2015年33卷第2期页码：447-457
- Affiliations：
  
  1. Key Laboratory of Algal Biology Institute of Hydrobiology Chinese Academy of Sciences
  2. University of Chinese Academy of Sciences
- Author bio：
- Funds：
  
  Supported by the National Natural Science Foundation of China (No. 31123001) and the National Basic Research Program of China (973 Program) (No. 2008CB418000)
- DOI：10.1007/s00343-015-4079-9
  中图分类号：
- 网络首发：2014-11-06，
  
  纸质出版：2015
- Accepted：
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Changes in phytoplankton communities along nutrient gradients in Lake Taihu: evidence for nutrient reduction strategies[J]. 海洋湖沼学报（英文）, 2015,33(2):447-457.

Ai, Y., Bi, Y. & Hu, Z. Changes in phytoplankton communities along nutrient gradients in Lake Taihu: evidence for nutrient reduction strategies., Chin. J. Ocean. Limnol. 33, 447–457 (2015). https://doi.org/10.1007/s00343-015-4079-9
Changes in phytoplankton communities along nutrient gradients in Lake Taihu: evidence for nutrient reduction strategies[J]. 海洋湖沼学报（英文）, 2015,33(2):447-457. DOI： 10.1007/s00343-015-4079-9.

Ai, Y., Bi, Y. & Hu, Z. Changes in phytoplankton communities along nutrient gradients in Lake Taihu: evidence for nutrient reduction strategies., Chin. J. Ocean. Limnol. 33, 447–457 (2015). https://doi.org/10.1007/s00343-015-4079-9 DOI：

摘要

Abstract

An annual investigation on phytoplankton communities was conducted to reveal the effects of nutrients on phytoplankton assemblages in Lake Taihu

East China. A total of 78 phytoplankton taxa were identified. Phytoplankton biomass was higher in the northern part of the lake than in the southern part. Cyanobacteria and Bacillariophyta alternated dominance in the northern area

where algal blooms often appear

and co-dominated in the southern area. In the northern part

the proportions of cyanobacteria and Bacillariophyta varied significantly in total biovolume

both along the phosphorus (P) gradient

and between total nitrogen levels (≤3 mg/L and >3 mg/L TN). The proportions of cyanobacteria and Bacillariophyta had no significant variations in total biovolume along P and N (nitrogen) gradients in the southern part. Correlation analysis and CCA results revealed that P was the key factor regulating phytoplankton community structure. Nitrogen was also important for the phytoplankton distribution pattern. It was concluded that nutrient structure was heterogeneous in space and shaped the distribution pattern of phytoplankton in the lake. Both exogenous P and internally sourced P release needs to be considered. N reduction should be considered simultaneously with P control to efficiently reduce eutrophication and algal blooms.

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references

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