Variations in physical and chemical parameters and plankton community structure in aseries of sewage-stabilization ponds
Variations in physical and chemical parameters and plankton community structure from urban-based scwage stabilization ponds in Delhi (India) were recorded from summer lo winter months of 1992-1993. The quantified physico-chemical variables were temperature, pH, dissolved oxygen, soluble reactive pho...
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Universidad de Costa Rica
1999
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ftucostaricaojs:oai:portal.ucr.ac.cr:article/26168 2023-07-30T04:07:31+02:00 Variations in physical and chemical parameters and plankton community structure in aseries of sewage-stabilization ponds Nandini, S. 1999-03-01 application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/26168 eng eng Universidad de Costa Rica https://revistas.ucr.ac.cr/index.php/rbt/article/view/26168/26428 https://revistas.ucr.ac.cr/index.php/rbt/article/view/26168 Derechos de autor 1999 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0 Revista de Biología Tropical; Vol. 47 No. S1 (1999): Volume 47 – Supplement 1 – March 1999: Latinamerican Planctology; 149–156 Revista de Biología Tropical; Vol. 47 Núm. S1 (1999): Volumen 47 – Suplemento 1 – Marzo 1999: Planctología Latinoamericana; 149–156 Revista Biología Tropical; Vol. 47 N.º S1 (1999): Volumen 47 – Suplemento 1 – Marzo 1999: Planctología Latinoamericana; 149–156 2215-2075 0034-7744 10.15517/rbt.v47i1 Phytoplankton zooplankton nutrients sedimentation ponds info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article 1999 ftucostaricaojs https://doi.org/10.15517/rbt.v47i1 2023-07-11T20:45:25Z Variations in physical and chemical parameters and plankton community structure from urban-based scwage stabilization ponds in Delhi (India) were recorded from summer lo winter months of 1992-1993. The quantified physico-chemical variables were temperature, pH, dissolved oxygen, soluble reactive phosphorus, lotal phosphorus, nitrate-nitrogen and chlorophyll-a. A qualitative analysis of the phytoplankton in all the ponds was made. Among zooplankton, rotifers, cladocerans, and copepods were identífied and quantified. Observations were taken every month concentrations of soluble reactive phosphorus, total phosphorus and nitrate-nitrogen ranged between 1.2-2.0 mg l-1, 2.0-3.5 mg l-1, and 0.075-0.30 mg l-1, respectively. Although there were no significant differences in the nutrient concentrations between any of the ponlis, the ponds receiving the raw sewage first had undetectable levels of chlorophyll-a for a greater part ofthe sampling period, As the water passedthrough the series of ponds, the quality improved and finally supported high zooplankton densities. There were summer blooms of Euglena, Pandorina, Spirulina and Oscillatoria. The commonly found rotifer species were Branchionus calyciflorus, Hexarthra mira and Filinia longiseta. Cladocera and Copepoda were represented, almost exclusively, by Moina macrocopa and Mesocyclops thermocyclopoides respectively. Se registraron las variaciones de parámetros físico-químicos y la structura de la communidad planctónica de varias lagunas de estabilización de aguas residuales urbanas en Nueva Delhi (India) desde los meses de verano hasta invierno de 1992-1993. Las variables físicas y químicas cuantificadas fueron temperatura, pH, oxígeno disuelto, fósforo reactivo soluble, fósforo total, nitrógeno como nitrato y clorofila-a. También se registró un análisis cualitativo del fitoplancton en todas las lagunas. Del zooplancton se identificó y cuantificó rotíferos, cladóceros y copépodos. Las observaciones se hicieron mensualmente. Las concentraciones de fósforo reactivo ... Article in Journal/Newspaper Copepods Rotifer Portal de revistas académicas de la Universidad de Costa Rica Invierno ENVELOPE(-64.267,-64.267,-65.267,-65.267) Mira ENVELOPE(10.500,10.500,-70.417,-70.417) |
institution |
Open Polar |
collection |
Portal de revistas académicas de la Universidad de Costa Rica |
op_collection_id |
ftucostaricaojs |
language |
English |
topic |
Phytoplankton zooplankton nutrients sedimentation ponds |
spellingShingle |
Phytoplankton zooplankton nutrients sedimentation ponds Nandini, S. Variations in physical and chemical parameters and plankton community structure in aseries of sewage-stabilization ponds |
topic_facet |
Phytoplankton zooplankton nutrients sedimentation ponds |
description |
Variations in physical and chemical parameters and plankton community structure from urban-based scwage stabilization ponds in Delhi (India) were recorded from summer lo winter months of 1992-1993. The quantified physico-chemical variables were temperature, pH, dissolved oxygen, soluble reactive phosphorus, lotal phosphorus, nitrate-nitrogen and chlorophyll-a. A qualitative analysis of the phytoplankton in all the ponds was made. Among zooplankton, rotifers, cladocerans, and copepods were identífied and quantified. Observations were taken every month concentrations of soluble reactive phosphorus, total phosphorus and nitrate-nitrogen ranged between 1.2-2.0 mg l-1, 2.0-3.5 mg l-1, and 0.075-0.30 mg l-1, respectively. Although there were no significant differences in the nutrient concentrations between any of the ponlis, the ponds receiving the raw sewage first had undetectable levels of chlorophyll-a for a greater part ofthe sampling period, As the water passedthrough the series of ponds, the quality improved and finally supported high zooplankton densities. There were summer blooms of Euglena, Pandorina, Spirulina and Oscillatoria. The commonly found rotifer species were Branchionus calyciflorus, Hexarthra mira and Filinia longiseta. Cladocera and Copepoda were represented, almost exclusively, by Moina macrocopa and Mesocyclops thermocyclopoides respectively. Se registraron las variaciones de parámetros físico-químicos y la structura de la communidad planctónica de varias lagunas de estabilización de aguas residuales urbanas en Nueva Delhi (India) desde los meses de verano hasta invierno de 1992-1993. Las variables físicas y químicas cuantificadas fueron temperatura, pH, oxígeno disuelto, fósforo reactivo soluble, fósforo total, nitrógeno como nitrato y clorofila-a. También se registró un análisis cualitativo del fitoplancton en todas las lagunas. Del zooplancton se identificó y cuantificó rotíferos, cladóceros y copépodos. Las observaciones se hicieron mensualmente. Las concentraciones de fósforo reactivo ... |
format |
Article in Journal/Newspaper |
author |
Nandini, S. |
author_facet |
Nandini, S. |
author_sort |
Nandini, S. |
title |
Variations in physical and chemical parameters and plankton community structure in aseries of sewage-stabilization ponds |
title_short |
Variations in physical and chemical parameters and plankton community structure in aseries of sewage-stabilization ponds |
title_full |
Variations in physical and chemical parameters and plankton community structure in aseries of sewage-stabilization ponds |
title_fullStr |
Variations in physical and chemical parameters and plankton community structure in aseries of sewage-stabilization ponds |
title_full_unstemmed |
Variations in physical and chemical parameters and plankton community structure in aseries of sewage-stabilization ponds |
title_sort |
variations in physical and chemical parameters and plankton community structure in aseries of sewage-stabilization ponds |
publisher |
Universidad de Costa Rica |
publishDate |
1999 |
url |
https://revistas.ucr.ac.cr/index.php/rbt/article/view/26168 |
long_lat |
ENVELOPE(-64.267,-64.267,-65.267,-65.267) ENVELOPE(10.500,10.500,-70.417,-70.417) |
geographic |
Invierno Mira |
geographic_facet |
Invierno Mira |
genre |
Copepods Rotifer |
genre_facet |
Copepods Rotifer |
op_source |
Revista de Biología Tropical; Vol. 47 No. S1 (1999): Volume 47 – Supplement 1 – March 1999: Latinamerican Planctology; 149–156 Revista de Biología Tropical; Vol. 47 Núm. S1 (1999): Volumen 47 – Suplemento 1 – Marzo 1999: Planctología Latinoamericana; 149–156 Revista Biología Tropical; Vol. 47 N.º S1 (1999): Volumen 47 – Suplemento 1 – Marzo 1999: Planctología Latinoamericana; 149–156 2215-2075 0034-7744 10.15517/rbt.v47i1 |
op_relation |
https://revistas.ucr.ac.cr/index.php/rbt/article/view/26168/26428 https://revistas.ucr.ac.cr/index.php/rbt/article/view/26168 |
op_rights |
Derechos de autor 1999 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0 |
op_doi |
https://doi.org/10.15517/rbt.v47i1 |
_version_ |
1772820911928377344 |