Spatial variation of picoplankton communities along a cascade reservoir system in Patagonia, Argentina
文献类型：期刊论文
| 作者 | Carolina Bernal, M.1; Lu, Lunhui2 ; Garcia, Carmen Sabio Y.1; Laura Sanchez, Maria1; Solange Vera, M.1; Porcel, Sol1; Sinistro, Rodrigo1; Li, Zhe2; Izaguirre, Irina1
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| 刊名 | JOURNAL OF LIMNOLOGY
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| 出版日期 | 2021 |
| 卷号 | 80期号:3页码:16 |
| ISSN号 | 1129-5767 |
| 关键词 | Cascade reservoirs Patagonia picoplankton flow cytometry bacterial biodiversity |
| DOI | 10.4081/jlimnol.2021.2027 |
| 通讯作者 | Carolina Bernal, M.(cbernal@ege.fcen.uba.ar) |
| 英文摘要 | In this study we explored how picoplankton conununity structure and diversity varied along three cascade oligo-mesotrophic reservoirs of the Limay River (Patagonia, Argentina): Alicura, Piedra del Aguila and Ramos Mexia. We analyzed the spatial changes, covering lotic and lentic stretches along a gradient of 262 kin from Andes to steppe, and we also sampled the main affluent of the Limay River (Colton Cura). In all sampling sites the main limnological variables were measured, and the picoplankton abundance (autotrophic and heterotrophic) was analyzed by flow cytometry. The bacterial biodiversity was assessed using high throughput sequencing Illumina MiSeq. We expected an increase in the trophic state along this series of cascade reservoirs, which would determine spatial differences in the structure of the picoplankton communities. We also hypothesized that the lotic and lentic conditions along the system would influence the bacterial composition. The results showed a slight increase in trophic state together with an increase in overall picoplankton abundance downstream, towards Ramos Mexia Reservoir. Picocyanobacteria were represented by phycoerythrin-rich cells all along the system, in accordance to the pattern described for oligotrophic aquatic ecosystems. Multivariate analyses based on bacterial OTU composition and environmental variables showed a spatial ordination of sites following the trend of increasing trophic state downstream. Molecular analyses of bacterial OTU diversity also showed an increase in richness and a decrease in evenness at the lotic stretches, and the opposite pattern in the reservoirs, suggesting that water retention time may play a role in structuring the community composition. |
| 资助项目 | Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET, Argentina) ; National Natural Science Foundation of China (NSFC)[51861125204] |
| WOS研究方向 | Marine & Freshwater Biology |
| 语种 | 英语 |
| 出版者 | PAGEPRESS PUBL |
| WOS记录号 | WOS:000752953000005 |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/15248]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Carolina Bernal, M. |
| 作者单位 | 1.Univ Buenos Aires, Dept Ecol Genet & Evoluc, Fac Ciencias Exactas & Nat, IEGEBA,CONICET UBA, Buenos Aires, DF, Argentina 2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Carolina Bernal, M.,Lu, Lunhui,Garcia, Carmen Sabio Y.,et al. Spatial variation of picoplankton communities along a cascade reservoir system in Patagonia, Argentina[J]. JOURNAL OF LIMNOLOGY,2021,80(3):16. |
| APA | Carolina Bernal, M..,Lu, Lunhui.,Garcia, Carmen Sabio Y..,Laura Sanchez, Maria.,Solange Vera, M..,...&Izaguirre, Irina.(2021).Spatial variation of picoplankton communities along a cascade reservoir system in Patagonia, Argentina.JOURNAL OF LIMNOLOGY,80(3),16. |
| MLA | Carolina Bernal, M.,et al."Spatial variation of picoplankton communities along a cascade reservoir system in Patagonia, Argentina".JOURNAL OF LIMNOLOGY 80.3(2021):16. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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