Glacial recession in Andean North‑Patagonia (Argentina): microbial communities in benthic biofilms of glacier‑fed streams

Global climate change produces impor- tant shifts in the glacial runoff, modifying the relative contributions of meltwater and glacial clay discharges into headwater streams. Physical and chemical factors of glacier-fed streams are affected, such as total suspended solids (TSS), and nutrient concentra...

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Autores principales: Vega, Evelyn, Bastidas Navarro, Marcela, Martyniuk, Nicolás, Balseiro, Esteban, Modenutti, Beatriz
Formato: Articulo article acceptedVersion
Lenguaje:Inglés
Publicado: Springer Link 2023
Materias:
Microbial diversity
Network
Glacial influence
Seasons
Cyanobacteria
Ciencias de la Tierra y Medio Ambiente
Acceso en línea:http://rdi.uncoma.edu.ar/handle/uncomaid/17801
Aporte de:
Repositorio Institucional UNCo de Universidad Nacional del Comahue
id I22-R178-uncomaid-17801
record_format dspace
spelling I22-R178-uncomaid-178012024-04-03T12:03:46Z Glacial recession in Andean North‑Patagonia (Argentina): microbial communities in benthic biofilms of glacier‑fed streams Vega, Evelyn Bastidas Navarro, Marcela Martyniuk, Nicolás Balseiro, Esteban Modenutti, Beatriz Microbial diversity Network Glacial influence Seasons Cyanobacteria Ciencias de la Tierra y Medio Ambiente Global climate change produces impor- tant shifts in the glacial runoff, modifying the relative contributions of meltwater and glacial clay discharges into headwater streams. Physical and chemical factors of glacier-fed streams are affected, such as total suspended solids (TSS), and nutrient concentrations. Here, we analyze the composition of the biofilm bacterial community by 16S rRNA sequencing along a glacier-fed network (Upper Río Manso) located in North Patagonian Andes (Argentina). We also anayzed changes in environmental factors in relation to the bacteria composition in different seasons (spring, summer, and autumn). Our results showed that the dominant phyla were Proteobacteria, Cyanobacteria, Bacteroidota, Actinobacteriota, and Acidobacteriota. Bacterial community composition changes longitu-dinally and seasonally in relation to glacial influence (TSS and phosphorus concentrations). We identified phylotypes of Proteobacteria (Polaromonas, Rho- doferax, and Methylotenera) that were only present in headwaters of the fluvial systems. In addition, Cyano-bacteria also presented substantial changes along the main course of Manso River and among seasons. The increase of Cyanobacteria abundance was favored by the glacial influence both longitudinally and season-ally. Overall our results contribute to the understand-ing of the patterns of biodiversity and bacterial com- position under a constant glacial retreat. Fil: Vega, Evelyn. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina. Fil: Vega, Evelyn. Instituto de Investigaciones en Biodiversidad y Medioambiente. Laboratorio de Limnología; Argentina. Fil: Vega, Evelyn. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Bastidas Navarro, Marcela. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina. Fil: Bastidas Navarro, Marcela. Instituto de Investigaciones en Biodiversidad y Medioambiente. Laboratorio de Limnología; Argentina. Fil: Bastidas Navarro, Marcela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Martyniuk, Nicolás. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina. Fil: Martyniuk, Nicolás. Instituto de Investigaciones en Biodiversidad y Medioambiente. Laboratorio de Limnología; Argentina. Fil: Martyniuk, Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Balseiro, Esteban. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina. Fil: Balseiro, Esteban. Instituto de Investigaciones en Biodiversidad y Medioambiente. Laboratorio de Limnología; Argentina. Fil: Balseiro, Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Modenutti, Beatriz. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina. Fil: Modenutti, Beatriz. Instituto de Investigaciones en Biodiversidad y Medioambiente. Laboratorio de Limnología; Argentina. Fil: Modenutti, Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. 2023 2024-03-27T17:58:58Z 2024-03-27T17:58:58Z Articulo article acceptedVersion http://rdi.uncoma.edu.ar/handle/uncomaid/17801 eng https://doi.org/10.1007/s10750-023-05279-3 Atribución-NoComercial-CompartirIgual 2.5 Argentina https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ application/pdf pp. 3965–3979 application/pdf Springer Link Hydrobiologia 850 (2023)
institution Universidad Nacional del Comahue
institution_str I-22
repository_str R-178
collection Repositorio Institucional UNCo
language Inglés
topic Microbial diversity
Network
Glacial influence
Seasons
Cyanobacteria
Ciencias de la Tierra y Medio Ambiente
spellingShingle Microbial diversity
Network
Glacial influence
Seasons
Cyanobacteria
Ciencias de la Tierra y Medio Ambiente
Vega, Evelyn
Bastidas Navarro, Marcela
Martyniuk, Nicolás
Balseiro, Esteban
Modenutti, Beatriz
Glacial recession in Andean North‑Patagonia (Argentina): microbial communities in benthic biofilms of glacier‑fed streams
topic_facet Microbial diversity
Network
Glacial influence
Seasons
Cyanobacteria
Ciencias de la Tierra y Medio Ambiente
description Global climate change produces impor- tant shifts in the glacial runoff, modifying the relative contributions of meltwater and glacial clay discharges into headwater streams. Physical and chemical factors of glacier-fed streams are affected, such as total suspended solids (TSS), and nutrient concentrations. Here, we analyze the composition of the biofilm bacterial community by 16S rRNA sequencing along a glacier-fed network (Upper Río Manso) located in North Patagonian Andes (Argentina). We also anayzed changes in environmental factors in relation to the bacteria composition in different seasons (spring, summer, and autumn). Our results showed that the dominant phyla were Proteobacteria, Cyanobacteria, Bacteroidota, Actinobacteriota, and Acidobacteriota. Bacterial community composition changes longitu-dinally and seasonally in relation to glacial influence (TSS and phosphorus concentrations). We identified phylotypes of Proteobacteria (Polaromonas, Rho- doferax, and Methylotenera) that were only present in headwaters of the fluvial systems. In addition, Cyano-bacteria also presented substantial changes along the main course of Manso River and among seasons. The increase of Cyanobacteria abundance was favored by the glacial influence both longitudinally and season-ally. Overall our results contribute to the understand-ing of the patterns of biodiversity and bacterial com- position under a constant glacial retreat.
format Articulo
article
acceptedVersion
author Vega, Evelyn
Bastidas Navarro, Marcela
Martyniuk, Nicolás
Balseiro, Esteban
Modenutti, Beatriz
author_facet Vega, Evelyn
Bastidas Navarro, Marcela
Martyniuk, Nicolás
Balseiro, Esteban
Modenutti, Beatriz
author_sort Vega, Evelyn
title Glacial recession in Andean North‑Patagonia (Argentina): microbial communities in benthic biofilms of glacier‑fed streams
title_short Glacial recession in Andean North‑Patagonia (Argentina): microbial communities in benthic biofilms of glacier‑fed streams
title_full Glacial recession in Andean North‑Patagonia (Argentina): microbial communities in benthic biofilms of glacier‑fed streams
title_fullStr Glacial recession in Andean North‑Patagonia (Argentina): microbial communities in benthic biofilms of glacier‑fed streams
title_full_unstemmed Glacial recession in Andean North‑Patagonia (Argentina): microbial communities in benthic biofilms of glacier‑fed streams
title_sort glacial recession in andean north‑patagonia (argentina): microbial communities in benthic biofilms of glacier‑fed streams
publisher Springer Link
publishDate 2023
url http://rdi.uncoma.edu.ar/handle/uncomaid/17801
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