Responses of phytoplankton and related microbial communities to changes in the limnological conditions of shallow lakes: a short-term cross-transplant experiment

We performed a short-term cross-transplant experiment (72 h) using dialysis bags in two shallow lakes with contrasting regimes (clear-vegetated and phytoplankton-turbid). We assessed the changes in the structure of the microbial planktonic communities in response to the variations in the limnologica...

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Detalles Bibliográficos
Publicado: 2015
Materias:
Community structure
Cross-transplant experiment
Microbial plankton
Shallow lakes
Turbid and clear regimes
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00188158_v752_n1_p139_Sinistro
http://hdl.handle.net/20.500.12110/paper_00188158_v752_n1_p139_Sinistro
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00188158_v752_n1_p139_Sinistro
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spelling paper:paper_00188158_v752_n1_p139_Sinistro2023-06-08T14:39:57Z Responses of phytoplankton and related microbial communities to changes in the limnological conditions of shallow lakes: a short-term cross-transplant experiment Community structure Cross-transplant experiment Microbial plankton Shallow lakes Turbid and clear regimes We performed a short-term cross-transplant experiment (72 h) using dialysis bags in two shallow lakes with contrasting regimes (clear-vegetated and phytoplankton-turbid). We assessed the changes in the structure of the microbial planktonic communities in response to the variations in the limnological conditions. Important changes were observed in >2 µm-phytoplankton composition in the two transplanted communities (from clear-vegetated to turbid and vice versa). Cyanobacteria biomass (Snowella spp.) increased in the transplanted treatment from the clear to the turbid lake, whereas the contribution of Ochromonas-like sp. diminished. Colonial and filamentous Cyanobacteria species dominated the phytoplankton of the turbid lake throughout the experiment, both in non-transplanted and transplanted waters. Chrysophyceae showed an increasing trend at 72 h in the transplanted treatment (from turbid to clear waters). Heterotrophic bacteria biomass increased in the transplanted treatment from the clear to the turbid system, probably due to a higher availability of more labile sources of dissolved organic carbon (DOC). Our results evidenced changes in the microbial communities in response to important regulator factors (nutrients, light attenuation, DOC availability and top-down control at the microbial food web) in the two contrasting regimes. © 2015, Springer International Publishing Switzerland. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00188158_v752_n1_p139_Sinistro http://hdl.handle.net/20.500.12110/paper_00188158_v752_n1_p139_Sinistro
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Community structure
Cross-transplant experiment
Microbial plankton
Shallow lakes
Turbid and clear regimes
spellingShingle Community structure
Cross-transplant experiment
Microbial plankton
Shallow lakes
Turbid and clear regimes
Responses of phytoplankton and related microbial communities to changes in the limnological conditions of shallow lakes: a short-term cross-transplant experiment
topic_facet Community structure
Cross-transplant experiment
Microbial plankton
Shallow lakes
Turbid and clear regimes
description We performed a short-term cross-transplant experiment (72 h) using dialysis bags in two shallow lakes with contrasting regimes (clear-vegetated and phytoplankton-turbid). We assessed the changes in the structure of the microbial planktonic communities in response to the variations in the limnological conditions. Important changes were observed in >2 µm-phytoplankton composition in the two transplanted communities (from clear-vegetated to turbid and vice versa). Cyanobacteria biomass (Snowella spp.) increased in the transplanted treatment from the clear to the turbid lake, whereas the contribution of Ochromonas-like sp. diminished. Colonial and filamentous Cyanobacteria species dominated the phytoplankton of the turbid lake throughout the experiment, both in non-transplanted and transplanted waters. Chrysophyceae showed an increasing trend at 72 h in the transplanted treatment (from turbid to clear waters). Heterotrophic bacteria biomass increased in the transplanted treatment from the clear to the turbid system, probably due to a higher availability of more labile sources of dissolved organic carbon (DOC). Our results evidenced changes in the microbial communities in response to important regulator factors (nutrients, light attenuation, DOC availability and top-down control at the microbial food web) in the two contrasting regimes. © 2015, Springer International Publishing Switzerland.
title Responses of phytoplankton and related microbial communities to changes in the limnological conditions of shallow lakes: a short-term cross-transplant experiment
title_short Responses of phytoplankton and related microbial communities to changes in the limnological conditions of shallow lakes: a short-term cross-transplant experiment
title_full Responses of phytoplankton and related microbial communities to changes in the limnological conditions of shallow lakes: a short-term cross-transplant experiment
title_fullStr Responses of phytoplankton and related microbial communities to changes in the limnological conditions of shallow lakes: a short-term cross-transplant experiment
title_full_unstemmed Responses of phytoplankton and related microbial communities to changes in the limnological conditions of shallow lakes: a short-term cross-transplant experiment
title_sort responses of phytoplankton and related microbial communities to changes in the limnological conditions of shallow lakes: a short-term cross-transplant experiment
publishDate 2015
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00188158_v752_n1_p139_Sinistro
http://hdl.handle.net/20.500.12110/paper_00188158_v752_n1_p139_Sinistro
_version_ 1768545267235160064

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