Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/192790
Title: | Bacterioplankton seasonality in deep high-mountain lakes |
Author: | Zufiaurre, Aitziber Felip i Benach, Marisol Camarero, Lluís Sala-Faig, Marc Juhanson, Jaanis Bonilla-Rosso, German Hallin, Sara Catalan, Jordi |
Keywords: | Plàncton Ecologia Bacteris Plankton Ecology Bacteria |
Issue Date: | 14-Sep-2022 |
Publisher: | Frontiers Media |
Abstract: | Due to global warming, shorter ice cover duration might drastically affect the ecology of lakes currently undergoing seasonal surface freezing. Highmountain lakes show snow-rich ice covers that determine contrasting conditions between ice-off and ice-on periods. We characterized the bacterioplankton seasonality in a deep high-mountain lake ice-covered for half a year. The lake shows a rich core bacterioplankton community consisting of three components: (i) an assemblage stable throughout the year, dominated by Actinobacteria, resistant to all environmental conditions; (ii) an ice-on-resilient assemblage dominating during the ice-covered period, which is more diverse than the other components and includes a high abundance of Verrucomicrobia; the deep hypolimnion constitutes a refuge for many of the typical under-ice taxa, many of which recover quickly during autumn mixing; and (iii) an ice-off-resilient assemblage, which members peak in summer in epilimnetic waters when the rest decline, characterized by a dominance of Flavobacterium, and Limnohabitans. The rich core community and low random elements compared to other relatively small cold lakes can be attributed to its simple hydrological network in a poorly-vegetated catchment, the long water-residence time (ca. 4 years), and the long ice-cover duration; features common to many headwater deep high-mountain lakes. |
Note: | Reproducció del document publicat a: https://doi.org/10.3389/fmicb.2022.935378 |
It is part of: | Frontiers in Microbiology, 2022, vol. 13, num. 935378 |
URI: | http://hdl.handle.net/2445/192790 |
Related resource: | https://doi.org/10.3389/fmicb.2022.935378 |
ISSN: | 1664-302X |
Appears in Collections: | Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
728567.pdf | 2.93 MB | Adobe PDF | View/Open |
This item is licensed under a Creative Commons License