Limnological Parameters and Population Structure of Artemia persimilis Piccinelli and Prosdocimi, 1968 (Crustacea, Anostraca) in La Amarga, a Hypersaline Lake of La Pampa (Argentin...

Autores
Echaniz, Santiago Andrés; Cabrera, Gabriela Cecilia; Vignatti, Alicia María
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In the semiarid central region of Argentina, there are many hypersaline lakes that are scarcely studied ecologically. In La Pampa province, La Amarga stands out, which is a lake with particular characteristics that belongs to a virtually inactive fluvial system by anthropogenic action. Since Artemia persimilis Piccinelli and Prosdocimi, 1968, a native species on which information is scarce, has been registered in La Amarga, the objectives of this study were to determine the main limnological parameters and know the density, biomass and population structure of A. persimilis and its relationship with environmental parameters. Seasonal samplings (January, April, August and October) were carried out during 2007. In situ temperature, dissolved oxygen concentration, pH and transparency were determined. Water samples were taken for the determination of salinity, nutrients, suspended solids and chlorophyll-a and qualitative and quantitative zooplankton samples. The mean salinity was 115 g.L-1 ±19.02 and Cl- and Na+ predominated. Mean transparency was 1.54 ±0.15 m, and despite high concentrations of nutrients (TP: 4.38 ±1.61 mg.L-1 and TKN: 25.32 (±12.29) mg.L-1), the phytoplankton chlorophyll-a concentration was reduced (1.65 ±1.16 mg.m-3). The mean density and biomass of A. persimilis were reduced (1.56 ±2.17 ind.L-1 and 122.43 ±99.3 µg.L-1). The density was minimal in winter (0.04 ind.L-1), but was higher when more biomass was found (240.95 µg.L-1), since larger stadiums (post-larvae and adults) prevailed. No correlations between total density and biomass or those of the different stages and environmental parameters were found. Although A. persimilis has adaptations that allow it to thrive with higher salinities than those of La Amarga, its low density and biomass could be due to scarce availability of food, given the low concentrations of chlorophyll-a and suspended organic solids that were recorded.
Fil: Echaniz, Santiago Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Cabrera, Gabriela Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Vignatti, Alicia María. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales; Argentina
Materia
ARTEMIA PERSIMILIS
HYPERSALINE LAKES
LA AMARGA
LA PAMPA
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/72170
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/72170
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Limnological Parameters and Population Structure of Artemia persimilis Piccinelli and Prosdocimi, 1968 (Crustacea, Anostraca) in La Amarga, a Hypersaline Lake of La Pampa (Argentina)Echaniz, Santiago AndrésCabrera, Gabriela CeciliaVignatti, Alicia MaríaARTEMIA PERSIMILISHYPERSALINE LAKESLA AMARGALA PAMPAhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1In the semiarid central region of Argentina, there are many hypersaline lakes that are scarcely studied ecologically. In La Pampa province, La Amarga stands out, which is a lake with particular characteristics that belongs to a virtually inactive fluvial system by anthropogenic action. Since Artemia persimilis Piccinelli and Prosdocimi, 1968, a native species on which information is scarce, has been registered in La Amarga, the objectives of this study were to determine the main limnological parameters and know the density, biomass and population structure of A. persimilis and its relationship with environmental parameters. Seasonal samplings (January, April, August and October) were carried out during 2007. In situ temperature, dissolved oxygen concentration, pH and transparency were determined. Water samples were taken for the determination of salinity, nutrients, suspended solids and chlorophyll-a and qualitative and quantitative zooplankton samples. The mean salinity was 115 g.L-1 ±19.02 and Cl- and Na+ predominated. Mean transparency was 1.54 ±0.15 m, and despite high concentrations of nutrients (TP: 4.38 ±1.61 mg.L-1 and TKN: 25.32 (±12.29) mg.L-1), the phytoplankton chlorophyll-a concentration was reduced (1.65 ±1.16 mg.m-3). The mean density and biomass of A. persimilis were reduced (1.56 ±2.17 ind.L-1 and 122.43 ±99.3 µg.L-1). The density was minimal in winter (0.04 ind.L-1), but was higher when more biomass was found (240.95 µg.L-1), since larger stadiums (post-larvae and adults) prevailed. No correlations between total density and biomass or those of the different stages and environmental parameters were found. Although A. persimilis has adaptations that allow it to thrive with higher salinities than those of La Amarga, its low density and biomass could be due to scarce availability of food, given the low concentrations of chlorophyll-a and suspended organic solids that were recorded.Fil: Echaniz, Santiago Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Cabrera, Gabriela Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Vignatti, Alicia María. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales; ArgentinaScientific & Academic Publishing2015-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/72170Echaniz, Santiago Andrés; Cabrera, Gabriela Cecilia; Vignatti, Alicia María; Limnological Parameters and Population Structure of Artemia persimilis Piccinelli and Prosdocimi, 1968 (Crustacea, Anostraca) in La Amarga, a Hypersaline Lake of La Pampa (Argentina); Scientific & Academic Publishing; Research in Zoology; 5; 2; 12-2015; 25-312325-002X2325-0038CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.5923/j.zoology.20150502.01info:eu-repo/semantics/altIdentifier/url/http://article.sapub.org/10.5923.j.zoology.20150502.01.htmlinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:02:20Zoai:ri.conicet.gov.ar:11336/72170instacron: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:34982025-10-15 15:02:20.647CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Limnological Parameters and Population Structure of Artemia persimilis Piccinelli and Prosdocimi, 1968 (Crustacea, Anostraca) in La Amarga, a Hypersaline Lake of La Pampa (Argentina)
title Limnological Parameters and Population Structure of Artemia persimilis Piccinelli and Prosdocimi, 1968 (Crustacea, Anostraca) in La Amarga, a Hypersaline Lake of La Pampa (Argentina)
spellingShingle Limnological Parameters and Population Structure of Artemia persimilis Piccinelli and Prosdocimi, 1968 (Crustacea, Anostraca) in La Amarga, a Hypersaline Lake of La Pampa (Argentina)
Echaniz, Santiago Andrés
ARTEMIA PERSIMILIS
HYPERSALINE LAKES
LA AMARGA
LA PAMPA
title_short Limnological Parameters and Population Structure of Artemia persimilis Piccinelli and Prosdocimi, 1968 (Crustacea, Anostraca) in La Amarga, a Hypersaline Lake of La Pampa (Argentina)
title_full Limnological Parameters and Population Structure of Artemia persimilis Piccinelli and Prosdocimi, 1968 (Crustacea, Anostraca) in La Amarga, a Hypersaline Lake of La Pampa (Argentina)
title_fullStr Limnological Parameters and Population Structure of Artemia persimilis Piccinelli and Prosdocimi, 1968 (Crustacea, Anostraca) in La Amarga, a Hypersaline Lake of La Pampa (Argentina)
title_full_unstemmed Limnological Parameters and Population Structure of Artemia persimilis Piccinelli and Prosdocimi, 1968 (Crustacea, Anostraca) in La Amarga, a Hypersaline Lake of La Pampa (Argentina)
title_sort Limnological Parameters and Population Structure of Artemia persimilis Piccinelli and Prosdocimi, 1968 (Crustacea, Anostraca) in La Amarga, a Hypersaline Lake of La Pampa (Argentina)
dc.creator.none.fl_str_mv Echaniz, Santiago Andrés
Cabrera, Gabriela Cecilia
Vignatti, Alicia María
author Echaniz, Santiago Andrés
author_facet Echaniz, Santiago Andrés
Cabrera, Gabriela Cecilia
Vignatti, Alicia María
author_role author
author2 Cabrera, Gabriela Cecilia
Vignatti, Alicia María
author2_role author
author
dc.subject.none.fl_str_mv ARTEMIA PERSIMILIS
HYPERSALINE LAKES
LA AMARGA
LA PAMPA
topic ARTEMIA PERSIMILIS
HYPERSALINE LAKES
LA AMARGA
LA PAMPA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In the semiarid central region of Argentina, there are many hypersaline lakes that are scarcely studied ecologically. In La Pampa province, La Amarga stands out, which is a lake with particular characteristics that belongs to a virtually inactive fluvial system by anthropogenic action. Since Artemia persimilis Piccinelli and Prosdocimi, 1968, a native species on which information is scarce, has been registered in La Amarga, the objectives of this study were to determine the main limnological parameters and know the density, biomass and population structure of A. persimilis and its relationship with environmental parameters. Seasonal samplings (January, April, August and October) were carried out during 2007. In situ temperature, dissolved oxygen concentration, pH and transparency were determined. Water samples were taken for the determination of salinity, nutrients, suspended solids and chlorophyll-a and qualitative and quantitative zooplankton samples. The mean salinity was 115 g.L-1 ±19.02 and Cl- and Na+ predominated. Mean transparency was 1.54 ±0.15 m, and despite high concentrations of nutrients (TP: 4.38 ±1.61 mg.L-1 and TKN: 25.32 (±12.29) mg.L-1), the phytoplankton chlorophyll-a concentration was reduced (1.65 ±1.16 mg.m-3). The mean density and biomass of A. persimilis were reduced (1.56 ±2.17 ind.L-1 and 122.43 ±99.3 µg.L-1). The density was minimal in winter (0.04 ind.L-1), but was higher when more biomass was found (240.95 µg.L-1), since larger stadiums (post-larvae and adults) prevailed. No correlations between total density and biomass or those of the different stages and environmental parameters were found. Although A. persimilis has adaptations that allow it to thrive with higher salinities than those of La Amarga, its low density and biomass could be due to scarce availability of food, given the low concentrations of chlorophyll-a and suspended organic solids that were recorded.
Fil: Echaniz, Santiago Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Cabrera, Gabriela Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Vignatti, Alicia María. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales; Argentina
description In the semiarid central region of Argentina, there are many hypersaline lakes that are scarcely studied ecologically. In La Pampa province, La Amarga stands out, which is a lake with particular characteristics that belongs to a virtually inactive fluvial system by anthropogenic action. Since Artemia persimilis Piccinelli and Prosdocimi, 1968, a native species on which information is scarce, has been registered in La Amarga, the objectives of this study were to determine the main limnological parameters and know the density, biomass and population structure of A. persimilis and its relationship with environmental parameters. Seasonal samplings (January, April, August and October) were carried out during 2007. In situ temperature, dissolved oxygen concentration, pH and transparency were determined. Water samples were taken for the determination of salinity, nutrients, suspended solids and chlorophyll-a and qualitative and quantitative zooplankton samples. The mean salinity was 115 g.L-1 ±19.02 and Cl- and Na+ predominated. Mean transparency was 1.54 ±0.15 m, and despite high concentrations of nutrients (TP: 4.38 ±1.61 mg.L-1 and TKN: 25.32 (±12.29) mg.L-1), the phytoplankton chlorophyll-a concentration was reduced (1.65 ±1.16 mg.m-3). The mean density and biomass of A. persimilis were reduced (1.56 ±2.17 ind.L-1 and 122.43 ±99.3 µg.L-1). The density was minimal in winter (0.04 ind.L-1), but was higher when more biomass was found (240.95 µg.L-1), since larger stadiums (post-larvae and adults) prevailed. No correlations between total density and biomass or those of the different stages and environmental parameters were found. Although A. persimilis has adaptations that allow it to thrive with higher salinities than those of La Amarga, its low density and biomass could be due to scarce availability of food, given the low concentrations of chlorophyll-a and suspended organic solids that were recorded.
publishDate 2015
dc.date.none.fl_str_mv 2015-12
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/11336/72170
Echaniz, Santiago Andrés; Cabrera, Gabriela Cecilia; Vignatti, Alicia María; Limnological Parameters and Population Structure of Artemia persimilis Piccinelli and Prosdocimi, 1968 (Crustacea, Anostraca) in La Amarga, a Hypersaline Lake of La Pampa (Argentina); Scientific & Academic Publishing; Research in Zoology; 5; 2; 12-2015; 25-31
2325-002X
2325-0038
CONICET Digital
CONICET
url http://hdl.handle.net/11336/72170
identifier_str_mv Echaniz, Santiago Andrés; Cabrera, Gabriela Cecilia; Vignatti, Alicia María; Limnological Parameters and Population Structure of Artemia persimilis Piccinelli and Prosdocimi, 1968 (Crustacea, Anostraca) in La Amarga, a Hypersaline Lake of La Pampa (Argentina); Scientific & Academic Publishing; Research in Zoology; 5; 2; 12-2015; 25-31
2325-002X
2325-0038
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.5923/j.zoology.20150502.01
info:eu-repo/semantics/altIdentifier/url/http://article.sapub.org/10.5923.j.zoology.20150502.01.html
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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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
dc.publisher.none.fl_str_mv Scientific & Academic Publishing
publisher.none.fl_str_mv Scientific & Academic Publishing
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
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
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score 13.22299

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