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Analysis of environmental drivers influencing interspecific variations and associations among bloom-forming cyanobacteria in large, shallow eutrophic lakes.
Harmful Algae. 2019 04; 84:84-94.HA

Abstract

Non-diazotrophic Microcystis and filamentous N2-fixing Aphanizomenon and Dolichospermum (formerly Anabaena) co-occur or successively dominate freshwaters globally. Previous studies indicate that dual nitrogen (N) and phosphorus (P) reduction is needed to control cyanobacterial blooms; however, N limitation may cause replacement of non-N2-fixing by N2-fixing taxa. To evaluate potentially counterproductive scenarios, the effects of temperature, nutrients, and zooplankton on the spatio-temporal variations of cyanobacteria were investigated in three large, shallow eutrophic lakes in China. The results illustrate that the community composition of cyanobacteria is primarily driven by physical factors and the zooplankton community, and their interactions. Niche differentiation between Microcystis and two N2-fixing taxa in Lake Taihu and Lake Chaohu was observed, whereas small temperature fluctuations in Lake Dianchi supported co-dominance. Through structural equation modelling, predictor variables were aggregated into 'composites' representing their combined effects on species-specific biomass. The model results showed that Microcystis biomass was affected by water temperature and P concentrations across the studied lakes. The biomass of two filamentous taxa, by contrast, exhibited lake-specific responses. Understanding of driving forces of the succession and competition among bloom-forming cyanobacteria will help to guide lake restoration in the context of climate warming and N:P stoichiometry imbalances.

Authors+Show Affiliations

State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; Big Data Mining and Applications Center, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Science, Chongqing, 400714, China. Electronic address: shankun@cigit.ac.cn.State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 100049, China. Electronic address: lrsong@ihb.ac.cn.State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

31128816

Citation

Shan, Kun, et al. "Analysis of Environmental Drivers Influencing Interspecific Variations and Associations Among Bloom-forming Cyanobacteria in Large, Shallow Eutrophic Lakes." Harmful Algae, vol. 84, 2019, pp. 84-94.
Shan K, Song L, Chen W, et al. Analysis of environmental drivers influencing interspecific variations and associations among bloom-forming cyanobacteria in large, shallow eutrophic lakes. Harmful Algae. 2019;84:84-94.
Shan, K., Song, L., Chen, W., Li, L., Liu, L., Wu, Y., Jia, Y., Zhou, Q., & Peng, L. (2019). Analysis of environmental drivers influencing interspecific variations and associations among bloom-forming cyanobacteria in large, shallow eutrophic lakes. Harmful Algae, 84, 84-94. https://doi.org/10.1016/j.hal.2019.02.002
Shan K, et al. Analysis of Environmental Drivers Influencing Interspecific Variations and Associations Among Bloom-forming Cyanobacteria in Large, Shallow Eutrophic Lakes. Harmful Algae. 2019;84:84-94. PubMed PMID: 31128816.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Analysis of environmental drivers influencing interspecific variations and associations among bloom-forming cyanobacteria in large, shallow eutrophic lakes. AU - Shan,Kun, AU - Song,Lirong, AU - Chen,Wei, AU - Li,Lin, AU - Liu,Liming, AU - Wu,Yanlong, AU - Jia,Yunlu, AU - Zhou,Qichao, AU - Peng,Liang, Y1 - 2019/03/20/ PY - 2017/12/01/received PY - 2019/01/27/revised PY - 2019/02/01/accepted PY - 2019/5/27/entrez PY - 2019/5/28/pubmed PY - 2020/2/23/medline KW - Aphanizomenon KW - Cyanobacterial blooms KW - Dolichospermum KW - Eutrophication KW - Lake Chaohu KW - Lake Dianchi KW - Lake Taihu KW - Microcystis SP - 84 EP - 94 JF - Harmful algae JO - Harmful Algae VL - 84 N2 - Non-diazotrophic Microcystis and filamentous N2-fixing Aphanizomenon and Dolichospermum (formerly Anabaena) co-occur or successively dominate freshwaters globally. Previous studies indicate that dual nitrogen (N) and phosphorus (P) reduction is needed to control cyanobacterial blooms; however, N limitation may cause replacement of non-N2-fixing by N2-fixing taxa. To evaluate potentially counterproductive scenarios, the effects of temperature, nutrients, and zooplankton on the spatio-temporal variations of cyanobacteria were investigated in three large, shallow eutrophic lakes in China. The results illustrate that the community composition of cyanobacteria is primarily driven by physical factors and the zooplankton community, and their interactions. Niche differentiation between Microcystis and two N2-fixing taxa in Lake Taihu and Lake Chaohu was observed, whereas small temperature fluctuations in Lake Dianchi supported co-dominance. Through structural equation modelling, predictor variables were aggregated into 'composites' representing their combined effects on species-specific biomass. The model results showed that Microcystis biomass was affected by water temperature and P concentrations across the studied lakes. The biomass of two filamentous taxa, by contrast, exhibited lake-specific responses. Understanding of driving forces of the succession and competition among bloom-forming cyanobacteria will help to guide lake restoration in the context of climate warming and N:P stoichiometry imbalances. SN - 1878-1470 UR - https://www.unboundmedicine.com/medline/citation/31128816/Analysis_of_environmental_drivers_influencing_interspecific_variations_and_associations_among_bloom_forming_cyanobacteria_in_large_shallow_eutrophic_lakes_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1568-9883(19)30019-8 DB - PRIME DP - Unbound Medicine ER -