globalchange  > 气候变化事实与影响
DOI: 10.1016/j.watres.2018.10.067
Scopus记录号: 2-s2.0-85056232687
论文题名:
Assessing the effect of abiotic variables and zooplankton on picocyanobacterial dominance in two tropical mesotrophic reservoirs by means of evolutionary computation
作者: Rocha M.I.A.; Recknagel F.; Minoti R.T.; Huszar V.L.M.; Kozlowsky-Suzuki B.; Cao H.; Starling F.L.R.M.; Branco C.W.C.
刊名: Water Research
ISSN: 431354
出版年: 2019
起始页码: 120
结束页码: 129
语种: 英语
英文关键词: Cyanobacteria ; Hybrid evolutionary analysis ; Hydroelectric reservoir ; RWCS
Scopus关键词: Calculations ; Climate change ; Electric conductivity ; Tropics ; Water levels ; Water supply ; Cyanobacteria ; Density variations ; Electrical conductivity ; Environmental variables ; Hybrid evolutionary analysis ; Hydroelectric reservoirs ; RWCS ; Tropical reservoirs ; Reservoirs (water) ; water ; abiotic factor ; assessment method ; climate change ; cyanobacterium ; electrical conductivity ; equipment ; evolutionary biology ; mesotrophic environment ; reservoir ; stratification ; temperature effect ; water column ; water supply ; water temperature ; zooplankton ; Article ; climate change ; cyanobacterium ; electric conductivity ; nonhuman ; pH ; phytoplankton ; priority journal ; sensitivity analysis ; water supply ; water temperature ; zooplankton ; Brazil ; Copepoda ; Cyanobacteria ; Rotifera
英文摘要: Evolutionary computation has been applied to predict the occurrence of massive cyanobacteria proliferations; in the present study, this tool was further used to explore the factors responsible for maintaining picocyanobacterial dominance. Aiming to increase the understanding of factors that promote dominance of picocyanobacteria in tropical reservoirs, we chose two reservoirs used for water supplies located in different regions of Brazil and subjected to climate changes such as warmer winters that intensify water column stratification and prolonged dry seasons that cause water level decreases. This study focused on the diagnosis of the relationships among picocyanobacteria (1–2 μm), zooplankton and environmental variables using evolutionary computation. The integrated data analysis performed here was very successful in elucidating the dynamics of picocyanobacterial density variation influenced by both abiotic and biotic factors by the modeling approach. Relative water column stability - RWCS and electrical conductivity were highlighted as the most important environmental drivers for picocyanobacterial peaks. Hybrid Evolutionary Analysis (HEA) models for the two reservoirs indicated for the first time in the literature that rotifers, small-sized cladocerans and copepods (mainly nauplii) can directly or indirectly control picocyanobacteria in tropical mesotrophic reservoirs, depending on RWCS conditions and electrical conductivity. However, this control is modulated by pH, water transparency and water temperature thresholds. © 2018 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122170
Appears in Collections:气候变化事实与影响

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作者单位: Universidade Federal do Estado do Rio de Janeiro, Instituto de Biociências, Av. Pasteur, 458/303-Urca, Rio de Janeiro-RJ22290-250, Brazil; University of Adelaide, School of Biological Sciences, Seaton 5023, Adelaide, 5005, Australia; Universidade de Brasília, Departamento de Engenharia Civil e Ambiental, SG-12, Campus Univ. Darcy Ribeiro, Brasília, DF 70910-900, Brazil; Universidade Federal do Rio de Janeiro, Museu Nacional, Quinta da Boa Vista s/n, São Cristóvão, Rio de Janeiro-RJ, 20940-040, Brazil; Companhia de Saneamento Ambiental do Distrito Federal, Unidade de Monitoramento e Informações de Recursos Hídricos, SAIN, A/E s/n, Plano Piloto, Brasília, DF, Brazil

Recommended Citation:
Rocha M.I.A.,Recknagel F.,Minoti R.T.,et al. Assessing the effect of abiotic variables and zooplankton on picocyanobacterial dominance in two tropical mesotrophic reservoirs by means of evolutionary computation[J]. Water Research,2019-01-01
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