Short-term analysis of the phytoplankton structure and dynamics in two ponds with distinct trophic states from Cierva Point (maritime Antarctica)
Phytoplankton communities dominating Musgos and Papu´a ponds with differing trophic states were sampled over 3 days enabling the detection of the physiological and population responses of microalgae to short-scale changes in biotic and abiotic factors, rather than frequently analyzed changes in comm...
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ftconicet:oai:ri.conicet.gov.ar:11336/19696 2023-10-09T21:45:14+02:00 Short-term analysis of the phytoplankton structure and dynamics in two ponds with distinct trophic states from Cierva Point (maritime Antarctica) Allende, Luz Mataloni, Maria Gabriela application/pdf http://hdl.handle.net/11336/19696 eng eng Springer info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-013-1290-z info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00300-013-1290-z http://hdl.handle.net/11336/19696 Allende, Luz; Mataloni, Maria Gabriela; Short-term analysis of the phytoplankton structure and dynamics in two ponds with distinct trophic states from Cierva Point (maritime Antarctica); Springer; Polar Biology; 36; 5; 5-2013; 629-644 0722-4060 1432-2056 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Maritime Antarctica Ponds Phytoplankton Structure Short-Term Study https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1007/s00300-013-1290-z 2023-09-24T18:48:21Z Phytoplankton communities dominating Musgos and Papu´a ponds with differing trophic states were sampled over 3 days enabling the detection of the physiological and population responses of microalgae to short-scale changes in biotic and abiotic factors, rather than frequently analyzed changes in community composition responses to long-scale environmental changes. We hypothesized that both environments undergoing diel changes would be dominated by phytoplankton with generalist strategies, while community structure would be mostly dictated by the trophic state of each water body. The phytoplankton biovolumes of both ponds were strongly dominated by euplanktonic nanoflagellated Chlorophyta, while phycocyanin-rich picocyanobacteria dominated the picophytoplankton. Parallel diel cycles of air and water temperatures were more pronounced on a sunny, warm day which prompted algal photosynthesis, revealed by strong increases in dissolved oxygen and pH. Nutrient and phytoplanktonic chlorophyll a confirmed the hypertrophic condition of Papu´a pond. This accounted for the distinct community composition encountered in each pond, which remained stable throughout the study, as revealed by the SIMI index. The inverse relationship between the chl a/abundance ratio and the abundances of dominant species together with varying net growth rates (k0 ) showed algal reproduction, yet densities remained rather stable in both cases. In Musgos pond, fluctuations in k0 for small and median ciliates shadowed those of pico- and nanophytoplankton, respectively, strongly suggesting that they can control algal growth in these 2-level trophic chains. Fil: Allende, Luz. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina Fil: Mataloni, Maria Gabriela. Universidad Nacional de ... Article in Journal/Newspaper Antarc* Antarctica Polar Biology CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Argentina Cierva ENVELOPE(-60.873,-60.873,-64.156,-64.156) Two Ponds ENVELOPE(-57.915,-57.915,49.683,49.683) Cierva Point ENVELOPE(-60.967,-60.967,-64.150,-64.150) Polar Biology 36 5 629 644 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
Maritime Antarctica Ponds Phytoplankton Structure Short-Term Study https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
Maritime Antarctica Ponds Phytoplankton Structure Short-Term Study https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Allende, Luz Mataloni, Maria Gabriela Short-term analysis of the phytoplankton structure and dynamics in two ponds with distinct trophic states from Cierva Point (maritime Antarctica) |
topic_facet |
Maritime Antarctica Ponds Phytoplankton Structure Short-Term Study https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
Phytoplankton communities dominating Musgos and Papu´a ponds with differing trophic states were sampled over 3 days enabling the detection of the physiological and population responses of microalgae to short-scale changes in biotic and abiotic factors, rather than frequently analyzed changes in community composition responses to long-scale environmental changes. We hypothesized that both environments undergoing diel changes would be dominated by phytoplankton with generalist strategies, while community structure would be mostly dictated by the trophic state of each water body. The phytoplankton biovolumes of both ponds were strongly dominated by euplanktonic nanoflagellated Chlorophyta, while phycocyanin-rich picocyanobacteria dominated the picophytoplankton. Parallel diel cycles of air and water temperatures were more pronounced on a sunny, warm day which prompted algal photosynthesis, revealed by strong increases in dissolved oxygen and pH. Nutrient and phytoplanktonic chlorophyll a confirmed the hypertrophic condition of Papu´a pond. This accounted for the distinct community composition encountered in each pond, which remained stable throughout the study, as revealed by the SIMI index. The inverse relationship between the chl a/abundance ratio and the abundances of dominant species together with varying net growth rates (k0 ) showed algal reproduction, yet densities remained rather stable in both cases. In Musgos pond, fluctuations in k0 for small and median ciliates shadowed those of pico- and nanophytoplankton, respectively, strongly suggesting that they can control algal growth in these 2-level trophic chains. Fil: Allende, Luz. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina Fil: Mataloni, Maria Gabriela. Universidad Nacional de ... |
format |
Article in Journal/Newspaper |
author |
Allende, Luz Mataloni, Maria Gabriela |
author_facet |
Allende, Luz Mataloni, Maria Gabriela |
author_sort |
Allende, Luz |
title |
Short-term analysis of the phytoplankton structure and dynamics in two ponds with distinct trophic states from Cierva Point (maritime Antarctica) |
title_short |
Short-term analysis of the phytoplankton structure and dynamics in two ponds with distinct trophic states from Cierva Point (maritime Antarctica) |
title_full |
Short-term analysis of the phytoplankton structure and dynamics in two ponds with distinct trophic states from Cierva Point (maritime Antarctica) |
title_fullStr |
Short-term analysis of the phytoplankton structure and dynamics in two ponds with distinct trophic states from Cierva Point (maritime Antarctica) |
title_full_unstemmed |
Short-term analysis of the phytoplankton structure and dynamics in two ponds with distinct trophic states from Cierva Point (maritime Antarctica) |
title_sort |
short-term analysis of the phytoplankton structure and dynamics in two ponds with distinct trophic states from cierva point (maritime antarctica) |
publisher |
Springer |
url |
http://hdl.handle.net/11336/19696 |
long_lat |
ENVELOPE(-60.873,-60.873,-64.156,-64.156) ENVELOPE(-57.915,-57.915,49.683,49.683) ENVELOPE(-60.967,-60.967,-64.150,-64.150) |
geographic |
Argentina Cierva Two Ponds Cierva Point |
geographic_facet |
Argentina Cierva Two Ponds Cierva Point |
genre |
Antarc* Antarctica Polar Biology |
genre_facet |
Antarc* Antarctica Polar Biology |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-013-1290-z info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00300-013-1290-z http://hdl.handle.net/11336/19696 Allende, Luz; Mataloni, Maria Gabriela; Short-term analysis of the phytoplankton structure and dynamics in two ponds with distinct trophic states from Cierva Point (maritime Antarctica); Springer; Polar Biology; 36; 5; 5-2013; 629-644 0722-4060 1432-2056 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1007/s00300-013-1290-z |
container_title |
Polar Biology |
container_volume |
36 |
container_issue |
5 |
container_start_page |
629 |
op_container_end_page |
644 |
_version_ |
1779316968148434944 |