Can top-down and bottom-up forces explain phytoplankton structure in a subtropical and shallow groundwater-connected lake?

Bottom-up and top-down control of phytoplankton is one of the most important hypothesis that explains and predicts the structure of aquatic community. Our aim was to elucidate whether predation and resource limitation can control phytoplankton composition and abundance in a subtropical shallow lake...

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Authors: Frau, Diego, Devercelli, Melina, José De Paggi, Susana, Scarabotti, Pablo Augusto, Mayora, Gisela Paola, Battauz, Yamila Soledad, Senn, Mariana
Format: article
Status:Published version
Publication Date:2015
Country:Argentina
Institution:Consejo Nacional de Investigaciones Científicas y Técnicas
Repository:CONICET Digital (CONICET)
Language:English
OAI Identifier:oai:ri.conicet.gov.ar:11336/185271
Online Access:http://hdl.handle.net/11336/185271
Access Level:Open access
Keyword:CONTROL FACTORS
FLOODPLAIN LAKES
HYDROLOGICAL CONNECTIVITY
PLANKTON
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
id AR_2552b5f7aab1aa5c1af7e9bf5aec6c19
oai_identifier_str oai:ri.conicet.gov.ar:11336/185271
network_acronym_str AR
network_name_str Argentina
repository_id_str
dc.title.none.fl_str_mv Can top-down and bottom-up forces explain phytoplankton structure in a subtropical and shallow groundwater-connected lake?
title Can top-down and bottom-up forces explain phytoplankton structure in a subtropical and shallow groundwater-connected lake?
spellingShingle Can top-down and bottom-up forces explain phytoplankton structure in a subtropical and shallow groundwater-connected lake?
Frau, Diego
CONTROL FACTORS
FLOODPLAIN LAKES
HYDROLOGICAL CONNECTIVITY
PLANKTON
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
title_short Can top-down and bottom-up forces explain phytoplankton structure in a subtropical and shallow groundwater-connected lake?
title_full Can top-down and bottom-up forces explain phytoplankton structure in a subtropical and shallow groundwater-connected lake?
title_fullStr Can top-down and bottom-up forces explain phytoplankton structure in a subtropical and shallow groundwater-connected lake?
title_full_unstemmed Can top-down and bottom-up forces explain phytoplankton structure in a subtropical and shallow groundwater-connected lake?
title_sort Can top-down and bottom-up forces explain phytoplankton structure in a subtropical and shallow groundwater-connected lake?
dc.creator.none.fl_str_mv Frau, Diego
Devercelli, Melina
José De Paggi, Susana
Scarabotti, Pablo Augusto
Mayora, Gisela Paola
Battauz, Yamila Soledad
Senn, Mariana
author Frau, Diego
author_facet Frau, Diego
Devercelli, Melina
José De Paggi, Susana
Scarabotti, Pablo Augusto
Mayora, Gisela Paola
Battauz, Yamila Soledad
Senn, Mariana
author_role author
author2 Devercelli, Melina
José De Paggi, Susana
Scarabotti, Pablo Augusto
Mayora, Gisela Paola
Battauz, Yamila Soledad
Senn, Mariana
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv CONTROL FACTORS
FLOODPLAIN LAKES
HYDROLOGICAL CONNECTIVITY
PLANKTON
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
topic CONTROL FACTORS
FLOODPLAIN LAKES
HYDROLOGICAL CONNECTIVITY
PLANKTON
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
description Bottom-up and top-down control of phytoplankton is one of the most important hypothesis that explains and predicts the structure of aquatic community. Our aim was to elucidate whether predation and resource limitation can control phytoplankton composition and abundance in a subtropical shallow lake with groundwater connection to the river system. During 12 months, the lake was sampled at three points. Physico-chemical parameters, phytoplankton and zooplankton were sampled fortnightly, whereas fish were sampled every 3 months. The results showed that Euglenophyta dominated the total biovolume, followed by Dinophyta and Cryptophyta. As for the species composition, Chlorophyta was the dominant group (80 species recorded), followed by phylum Cyanobacteria (26 species recorded). Redundancy analysis (RDA) indicated that temperature and nitrate + nitrite concentration mainly explained biovolume changes, with zooplankton predation not having any measurable effect on phytoplankton during the high-water (HW) period. During low-water (LW) period top-down by fish was more important. At higher taxonomic resolution (species biovolume), phosphorus was another controlling factor. We concluded that phytoplankton in this lake is mainly regulated by hydrological changes as a macrofactor that affects nutrient availability and other environmental conditions. Even though bottom-up top-down forces do not have a central effect, we found evidence of positive nutrient influences at the HW period and fish effect at the LW period.
publishDate 2015
dc.date.none.fl_str_mv 2015-05
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/185271
Frau, Diego; Devercelli, Melina; José De Paggi, Susana; Scarabotti, Pablo Augusto; Mayora, Gisela Paola; et al.; Can top-down and bottom-up forces explain phytoplankton structure in a subtropical and shallow groundwater-connected lake?; Csiro Publishing; Marine and Freshwater Research; 66; 12; 5-2015; 1106-1115
1323-1650
CONICET Digital
CONICET
url http://hdl.handle.net/11336/185271
identifier_str_mv Frau, Diego; Devercelli, Melina; José De Paggi, Susana; Scarabotti, Pablo Augusto; Mayora, Gisela Paola; et al.; Can top-down and bottom-up forces explain phytoplankton structure in a subtropical and shallow groundwater-connected lake?; Csiro Publishing; Marine and Freshwater Research; 66; 12; 5-2015; 1106-1115
1323-1650
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.publish.csiro.au/mf/MF14177
info:eu-repo/semantics/altIdentifier/doi/10.1071/MF14177
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Csiro Publishing
publisher.none.fl_str_mv Csiro Publishing
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1799195389700603904
spelling Can top-down and bottom-up forces explain phytoplankton structure in a subtropical and shallow groundwater-connected lake?Frau, DiegoDevercelli, MelinaJosé De Paggi, SusanaScarabotti, Pablo AugustoMayora, Gisela PaolaBattauz, Yamila SoledadSenn, MarianaCONTROL FACTORSFLOODPLAIN LAKESHYDROLOGICAL CONNECTIVITYPLANKTONhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Bottom-up and top-down control of phytoplankton is one of the most important hypothesis that explains and predicts the structure of aquatic community. Our aim was to elucidate whether predation and resource limitation can control phytoplankton composition and abundance in a subtropical shallow lake with groundwater connection to the river system. During 12 months, the lake was sampled at three points. Physico-chemical parameters, phytoplankton and zooplankton were sampled fortnightly, whereas fish were sampled every 3 months. The results showed that Euglenophyta dominated the total biovolume, followed by Dinophyta and Cryptophyta. As for the species composition, Chlorophyta was the dominant group (80 species recorded), followed by phylum Cyanobacteria (26 species recorded). Redundancy analysis (RDA) indicated that temperature and nitrate + nitrite concentration mainly explained biovolume changes, with zooplankton predation not having any measurable effect on phytoplankton during the high-water (HW) period. During low-water (LW) period top-down by fish was more important. At higher taxonomic resolution (species biovolume), phosphorus was another controlling factor. We concluded that phytoplankton in this lake is mainly regulated by hydrological changes as a macrofactor that affects nutrient availability and other environmental conditions. Even though bottom-up top-down forces do not have a central effect, we found evidence of positive nutrient influences at the HW period and fish effect at the LW period.Fil: Frau, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; ArgentinaFil: Devercelli, Melina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; ArgentinaFil: José De Paggi, Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina. Universidad Nacional del Litoral. Facultad de Bioquímica y Ciencias Biológicas; ArgentinaFil: Scarabotti, Pablo Augusto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina. Universidad Nacional del Litoral. Facultad de Humanidades y Ciencias; ArgentinaFil: Mayora, Gisela Paola. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; ArgentinaFil: Battauz, Yamila Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; ArgentinaFil: Senn, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; ArgentinaCsiro Publishing2015-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/185271Frau, Diego; Devercelli, Melina; José De Paggi, Susana; Scarabotti, Pablo Augusto; Mayora, Gisela Paola; et al.; Can top-down and bottom-up forces explain phytoplankton structure in a subtropical and shallow groundwater-connected lake?; Csiro Publishing; Marine and Freshwater Research; 66; 12; 5-2015; 1106-11151323-1650CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.publish.csiro.au/mf/MF14177info:eu-repo/semantics/altIdentifier/doi/10.1071/MF14177info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:51:04Zoai:ri.conicet.gov.ar:11336/185271instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982024-05-08 13:51:04.401CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
score 15.228081

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