Changes in the phytoplankton of Lake Planetario after a restoration process
Lake Planetario is an urban recreational lake that suffered a Microcystis aeruginosa bloom in March 1999. At the same time the birds and fishes that inhabited the lake died, probably affected by microcystin, hepatotoxin that some strains of Miycrocyistis produce. The City of Buenos Aires requested A...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00116793_v44_n2_p319_Ehrenhaus |
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todo:paper_00116793_v44_n2_p319_Ehrenhaus2023-10-03T14:10:06Z Changes in the phytoplankton of Lake Planetario after a restoration process Ehrenhaus, C. Vigna, M.S. Argentina Bloom Buenos Aires Microcystis aeruginosa Restoration Urban recreational lake brackish water colonization community composition habitat restoration lake ecosystem new taxon phytoplankton restoration ecology species diversity summer winter Argentina Buenos Aires [Argentina] South America Aves Bacillariophyta Chlorophyta Cyanobacteria Microcystis aeruginosa Pisces Lake Planetario is an urban recreational lake that suffered a Microcystis aeruginosa bloom in March 1999. At the same time the birds and fishes that inhabited the lake died, probably affected by microcystin, hepatotoxin that some strains of Miycrocyistis produce. The City of Buenos Aires requested Aguas Argentinas to restore the lake. Restoration tasks included treatment of sediments and pumping of water from a brackish aquifer. For one year, monthly samples were taken with a phytoplankton net, the qualitative and quantitative composition of the phytoplankton were studied, and physico-chemical data were collected. The structure and composition of the phytoplankton were studied and revealed that due to the turbulence caused by the pumping of water, the Cyanophyta were controlled and phytoplankton diversity increased significantly. Chlorophyta dominated during spring, Cyanophyta during fall and Bacillariophyta during summer and winter. The change in conductivity provided a favourable environment for new taxa to colonize the lake, with representatives of taxa typical for brackish water. Fil:Ehrenhaus, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Vigna, M.S. 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_00116793_v44_n2_p319_Ehrenhaus |
| 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 |
Argentina Bloom Buenos Aires Microcystis aeruginosa Restoration Urban recreational lake brackish water colonization community composition habitat restoration lake ecosystem new taxon phytoplankton restoration ecology species diversity summer winter Argentina Buenos Aires [Argentina] South America Aves Bacillariophyta Chlorophyta Cyanobacteria Microcystis aeruginosa Pisces |
| spellingShingle |
Argentina Bloom Buenos Aires Microcystis aeruginosa Restoration Urban recreational lake brackish water colonization community composition habitat restoration lake ecosystem new taxon phytoplankton restoration ecology species diversity summer winter Argentina Buenos Aires [Argentina] South America Aves Bacillariophyta Chlorophyta Cyanobacteria Microcystis aeruginosa Pisces Ehrenhaus, C. Vigna, M.S. Changes in the phytoplankton of Lake Planetario after a restoration process |
| topic_facet |
Argentina Bloom Buenos Aires Microcystis aeruginosa Restoration Urban recreational lake brackish water colonization community composition habitat restoration lake ecosystem new taxon phytoplankton restoration ecology species diversity summer winter Argentina Buenos Aires [Argentina] South America Aves Bacillariophyta Chlorophyta Cyanobacteria Microcystis aeruginosa Pisces |
| description |
Lake Planetario is an urban recreational lake that suffered a Microcystis aeruginosa bloom in March 1999. At the same time the birds and fishes that inhabited the lake died, probably affected by microcystin, hepatotoxin that some strains of Miycrocyistis produce. The City of Buenos Aires requested Aguas Argentinas to restore the lake. Restoration tasks included treatment of sediments and pumping of water from a brackish aquifer. For one year, monthly samples were taken with a phytoplankton net, the qualitative and quantitative composition of the phytoplankton were studied, and physico-chemical data were collected. The structure and composition of the phytoplankton were studied and revealed that due to the turbulence caused by the pumping of water, the Cyanophyta were controlled and phytoplankton diversity increased significantly. Chlorophyta dominated during spring, Cyanophyta during fall and Bacillariophyta during summer and winter. The change in conductivity provided a favourable environment for new taxa to colonize the lake, with representatives of taxa typical for brackish water. |
| format |
JOUR |
| author |
Ehrenhaus, C. Vigna, M.S. |
| author_facet |
Ehrenhaus, C. Vigna, M.S. |
| author_sort |
Ehrenhaus, C. |
| title |
Changes in the phytoplankton of Lake Planetario after a restoration process |
| title_short |
Changes in the phytoplankton of Lake Planetario after a restoration process |
| title_full |
Changes in the phytoplankton of Lake Planetario after a restoration process |
| title_fullStr |
Changes in the phytoplankton of Lake Planetario after a restoration process |
| title_full_unstemmed |
Changes in the phytoplankton of Lake Planetario after a restoration process |
| title_sort |
changes in the phytoplankton of lake planetario after a restoration process |
| url |
http://hdl.handle.net/20.500.12110/paper_00116793_v44_n2_p319_Ehrenhaus |
| work_keys_str_mv |
AT ehrenhausc changesinthephytoplanktonoflakeplanetarioafterarestorationprocess AT vignams changesinthephytoplanktonoflakeplanetarioafterarestorationprocess |
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1807318942506549248 |