Relationship between phytoplankton and bacterioplankton production in vegetated humic shallow lakes
In this study, we show that depth-integrated pelagic primary production (PP) can exceed bacterioplankton production (BP) in vegetated humic shallow lakes, giving as a result an autotrophic water column, despite light restrictions and availability of organic carbon for lake bacteria. Intuitively, the...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_03275477_v26_n3_p305_AguilarZurita |
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todo:paper_03275477_v26_n3_p305_AguilarZurita2023-10-03T15:24:53Z Relationship between phytoplankton and bacterioplankton production in vegetated humic shallow lakes Aguilar Zurita, A. Rodríguez, P. Floating plants Primary production aquatic plant bacterioplankton depth heterotrophy humid environment lagoon organic carbon pelagic ecosystem photosynthesis primary production shallow water water column wetland Mastigophora (flagellates) Photobacteria In this study, we show that depth-integrated pelagic primary production (PP) can exceed bacterioplankton production (BP) in vegetated humic shallow lakes, giving as a result an autotrophic water column, despite light restrictions and availability of organic carbon for lake bacteria. Intuitively, these conditions should favor the development of a heterotrophic water column. Instead, during our survey, BP represented between 1.3 to 5% of PP most of the time. Only once, during late summer, BP was ~71% of PP. Although we cannot conclude about the mechanisms behind the observed results, previous surveys and experimentation in the wetland allow us to hypothesize that autotrophic conditions were favored by: i) the shallow nature of the lakes, which compensates for light attenuation by organic matter when integrating production in the water column, ii) the presence of anaerobic anoxygenic photosynthetic bacteria below the macrophyte cover, and iii) high predation rates on bacterioplankton by heterotrophic flagellates below the floating plants. © 2016, Asociacion Argentina de Ecologia. All rights reserved. Fil:Aguilar Zurita, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Rodríguez, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03275477_v26_n3_p305_AguilarZurita |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Floating plants Primary production aquatic plant bacterioplankton depth heterotrophy humid environment lagoon organic carbon pelagic ecosystem photosynthesis primary production shallow water water column wetland Mastigophora (flagellates) Photobacteria |
| spellingShingle |
Floating plants Primary production aquatic plant bacterioplankton depth heterotrophy humid environment lagoon organic carbon pelagic ecosystem photosynthesis primary production shallow water water column wetland Mastigophora (flagellates) Photobacteria Aguilar Zurita, A. Rodríguez, P. Relationship between phytoplankton and bacterioplankton production in vegetated humic shallow lakes |
| topic_facet |
Floating plants Primary production aquatic plant bacterioplankton depth heterotrophy humid environment lagoon organic carbon pelagic ecosystem photosynthesis primary production shallow water water column wetland Mastigophora (flagellates) Photobacteria |
| description |
In this study, we show that depth-integrated pelagic primary production (PP) can exceed bacterioplankton production (BP) in vegetated humic shallow lakes, giving as a result an autotrophic water column, despite light restrictions and availability of organic carbon for lake bacteria. Intuitively, these conditions should favor the development of a heterotrophic water column. Instead, during our survey, BP represented between 1.3 to 5% of PP most of the time. Only once, during late summer, BP was ~71% of PP. Although we cannot conclude about the mechanisms behind the observed results, previous surveys and experimentation in the wetland allow us to hypothesize that autotrophic conditions were favored by: i) the shallow nature of the lakes, which compensates for light attenuation by organic matter when integrating production in the water column, ii) the presence of anaerobic anoxygenic photosynthetic bacteria below the macrophyte cover, and iii) high predation rates on bacterioplankton by heterotrophic flagellates below the floating plants. © 2016, Asociacion Argentina de Ecologia. All rights reserved. |
| format |
JOUR |
| author |
Aguilar Zurita, A. Rodríguez, P. |
| author_facet |
Aguilar Zurita, A. Rodríguez, P. |
| author_sort |
Aguilar Zurita, A. |
| title |
Relationship between phytoplankton and bacterioplankton production in vegetated humic shallow lakes |
| title_short |
Relationship between phytoplankton and bacterioplankton production in vegetated humic shallow lakes |
| title_full |
Relationship between phytoplankton and bacterioplankton production in vegetated humic shallow lakes |
| title_fullStr |
Relationship between phytoplankton and bacterioplankton production in vegetated humic shallow lakes |
| title_full_unstemmed |
Relationship between phytoplankton and bacterioplankton production in vegetated humic shallow lakes |
| title_sort |
relationship between phytoplankton and bacterioplankton production in vegetated humic shallow lakes |
| url |
http://hdl.handle.net/20.500.12110/paper_03275477_v26_n3_p305_AguilarZurita |
| work_keys_str_mv |
AT aguilarzuritaa relationshipbetweenphytoplanktonandbacterioplanktonproductioninvegetatedhumicshallowlakes AT rodriguezp relationshipbetweenphytoplanktonandbacterioplanktonproductioninvegetatedhumicshallowlakes |
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1807322703727689728 |