First report on negative association between cyanobacteria and fecal indicator bacteria at San Roque reservoir (Argentina): impact of environmental factors

Autores
Halac, Silvana Raquel; Bazán, Raquel del Valle; Larrosa, Nancy Beatriz; Nadal, Ana Florencia; Ruibal Conti, Ana Laura; Rodriguez, Maria Ines; Ruiz, Marcia Andrea; López, Abel Gerardo
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The aim of this study was to evaluate the co-occurrence of some frequent fecal indicator bacteria and cyanobacteria species at San Roque reservoir (SRr), highlighting the relationship between their variability and environmental factors. This study was carried out at SRr (31°22′ S, 64°27′ O) located west of the city of Cordoba, Argentina. Physico-chemical measurements and sampling for microbiological and nutrient determinations were done at three recreational sites, during seasons of major touristic activity (spring-summer), with the aim of identifying temporal patterns of microorganism variability. In addition, we carried out laboratory experiments with local isolated bacteria (Escherichia coli and Enterococcus spp.) and axenic Microcystis aeruginosa cultures to assess an association among these microorganisms and evaluate whether it was positive or negative. Our results showed an inverse relationship between cyanobacteria and thermotolerant coliform bacteria (TtC) at SRr, which was only observed when high cyanobacteria concentration occurred (≥3.4 × 104 to 1.2 × 106 cell.mL−1). Experimental results also showed this type of relationship: E. coli and Enterococcus spp. decreased their growth in the presence of M. aeruginosa. In addition, it was observed that the variability of main phytoplanktonic species and TtC at SRr was mainly explained by temporal patterns, that is, the seasonal changes and the hydrological year. In summary, our data indicated that cyanobacteria high abundance during bloom periods could be an inhibiting factor for bacteria growth at SRr. Moreover, we demonstrated that nutrients such us P and N are not the main factors determining the variability of studied microorganisms in this eutrophic reservoir, but other factors, such as climatic conditions (temperature and precipitations), have a major influence. This study would provide a more comprehensive view on the dynamics of microorganism populations with sanitary relevance in eutrophic reservoirs.
Fil: Halac, Silvana Raquel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina. Instituto Nacional del Agua. Gerencia de Programas y Proyectos. Centro de la Region Semiarida.; Argentina
Fil: Bazán, Raquel del Valle. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina
Fil: Larrosa, Nancy Beatriz. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina
Fil: Nadal, Ana Florencia. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina
Fil: Ruibal Conti, Ana Laura. Instituto Nacional del Agua. Gerencia de Programas y Proyectos. Centro de la Region Semiarida.; Argentina
Fil: Rodriguez, Maria Ines. Instituto Nacional del Agua. Gerencia de Programas y Proyectos. Centro de la Region Semiarida.; Argentina
Fil: Ruiz, Marcia Andrea. Instituto Nacional del Agua. Gerencia de Programas y Proyectos. Centro de la Region Semiarida.; Argentina
Fil: López, Abel Gerardo. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina
Materia
CYANOBACTERIA BLOOM
ESCHERICHIA COLI
EUTROPHIC RESERVOIR
HYDROCLIMATIC VARIABILITY
MICROCYSTIS AERUGINOSA
THERMOTOLERANT COLIFORM BACTERIA
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:11336/125616
Acceder
id CONICETDig_4864c047345f6cc4c74263b35b08602c
oai_identifier_str oai:ri.conicet.gov.ar:11336/125616
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling First report on negative association between cyanobacteria and fecal indicator bacteria at San Roque reservoir (Argentina): impact of environmental factorsHalac, Silvana RaquelBazán, Raquel del ValleLarrosa, Nancy BeatrizNadal, Ana FlorenciaRuibal Conti, Ana LauraRodriguez, Maria InesRuiz, Marcia AndreaLópez, Abel GerardoCYANOBACTERIA BLOOMESCHERICHIA COLIEUTROPHIC RESERVOIRHYDROCLIMATIC VARIABILITYMICROCYSTIS AERUGINOSATHERMOTOLERANT COLIFORM BACTERIAhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The aim of this study was to evaluate the co-occurrence of some frequent fecal indicator bacteria and cyanobacteria species at San Roque reservoir (SRr), highlighting the relationship between their variability and environmental factors. This study was carried out at SRr (31°22′ S, 64°27′ O) located west of the city of Cordoba, Argentina. Physico-chemical measurements and sampling for microbiological and nutrient determinations were done at three recreational sites, during seasons of major touristic activity (spring-summer), with the aim of identifying temporal patterns of microorganism variability. In addition, we carried out laboratory experiments with local isolated bacteria (Escherichia coli and Enterococcus spp.) and axenic Microcystis aeruginosa cultures to assess an association among these microorganisms and evaluate whether it was positive or negative. Our results showed an inverse relationship between cyanobacteria and thermotolerant coliform bacteria (TtC) at SRr, which was only observed when high cyanobacteria concentration occurred (≥3.4 × 104 to 1.2 × 106 cell.mL−1). Experimental results also showed this type of relationship: E. coli and Enterococcus spp. decreased their growth in the presence of M. aeruginosa. In addition, it was observed that the variability of main phytoplanktonic species and TtC at SRr was mainly explained by temporal patterns, that is, the seasonal changes and the hydrological year. In summary, our data indicated that cyanobacteria high abundance during bloom periods could be an inhibiting factor for bacteria growth at SRr. Moreover, we demonstrated that nutrients such us P and N are not the main factors determining the variability of studied microorganisms in this eutrophic reservoir, but other factors, such as climatic conditions (temperature and precipitations), have a major influence. This study would provide a more comprehensive view on the dynamics of microorganism populations with sanitary relevance in eutrophic reservoirs.Fil: Halac, Silvana Raquel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina. Instituto Nacional del Agua. Gerencia de Programas y Proyectos. Centro de la Region Semiarida.; ArgentinaFil: Bazán, Raquel del Valle. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; ArgentinaFil: Larrosa, Nancy Beatriz. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; ArgentinaFil: Nadal, Ana Florencia. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; ArgentinaFil: Ruibal Conti, Ana Laura. Instituto Nacional del Agua. Gerencia de Programas y Proyectos. Centro de la Region Semiarida.; ArgentinaFil: Rodriguez, Maria Ines. Instituto Nacional del Agua. Gerencia de Programas y Proyectos. Centro de la Region Semiarida.; ArgentinaFil: Ruiz, Marcia Andrea. Instituto Nacional del Agua. Gerencia de Programas y Proyectos. Centro de la Region Semiarida.; ArgentinaFil: López, Abel Gerardo. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; ArgentinaOikos Publ Inc2019-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/125616Halac, Silvana Raquel; Bazán, Raquel del Valle; Larrosa, Nancy Beatriz; Nadal, Ana Florencia; Ruibal Conti, Ana Laura; et al.; First report on negative association between cyanobacteria and fecal indicator bacteria at San Roque reservoir (Argentina): impact of environmental factors; Oikos Publ Inc; Journal Of Freshwater Ecology; 34; 1; 1-2019; 273-2910270-5060CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1080/02705060.2019.1595752info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/02705060.2019.1595752info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:02:01Zoai:ri.conicet.gov.ar:11336/125616instacron: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:34982025-09-03 10:02:01.737CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv First report on negative association between cyanobacteria and fecal indicator bacteria at San Roque reservoir (Argentina): impact of environmental factors
title First report on negative association between cyanobacteria and fecal indicator bacteria at San Roque reservoir (Argentina): impact of environmental factors
spellingShingle First report on negative association between cyanobacteria and fecal indicator bacteria at San Roque reservoir (Argentina): impact of environmental factors
Halac, Silvana Raquel
CYANOBACTERIA BLOOM
ESCHERICHIA COLI
EUTROPHIC RESERVOIR
HYDROCLIMATIC VARIABILITY
MICROCYSTIS AERUGINOSA
THERMOTOLERANT COLIFORM BACTERIA
title_short First report on negative association between cyanobacteria and fecal indicator bacteria at San Roque reservoir (Argentina): impact of environmental factors
title_full First report on negative association between cyanobacteria and fecal indicator bacteria at San Roque reservoir (Argentina): impact of environmental factors
title_fullStr First report on negative association between cyanobacteria and fecal indicator bacteria at San Roque reservoir (Argentina): impact of environmental factors
title_full_unstemmed First report on negative association between cyanobacteria and fecal indicator bacteria at San Roque reservoir (Argentina): impact of environmental factors
title_sort First report on negative association between cyanobacteria and fecal indicator bacteria at San Roque reservoir (Argentina): impact of environmental factors
dc.creator.none.fl_str_mv Halac, Silvana Raquel
Bazán, Raquel del Valle
Larrosa, Nancy Beatriz
Nadal, Ana Florencia
Ruibal Conti, Ana Laura
Rodriguez, Maria Ines
Ruiz, Marcia Andrea
López, Abel Gerardo
author Halac, Silvana Raquel
author_facet Halac, Silvana Raquel
Bazán, Raquel del Valle
Larrosa, Nancy Beatriz
Nadal, Ana Florencia
Ruibal Conti, Ana Laura
Rodriguez, Maria Ines
Ruiz, Marcia Andrea
López, Abel Gerardo
author_role author
author2 Bazán, Raquel del Valle
Larrosa, Nancy Beatriz
Nadal, Ana Florencia
Ruibal Conti, Ana Laura
Rodriguez, Maria Ines
Ruiz, Marcia Andrea
López, Abel Gerardo
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv CYANOBACTERIA BLOOM
ESCHERICHIA COLI
EUTROPHIC RESERVOIR
HYDROCLIMATIC VARIABILITY
MICROCYSTIS AERUGINOSA
THERMOTOLERANT COLIFORM BACTERIA
topic CYANOBACTERIA BLOOM
ESCHERICHIA COLI
EUTROPHIC RESERVOIR
HYDROCLIMATIC VARIABILITY
MICROCYSTIS AERUGINOSA
THERMOTOLERANT COLIFORM BACTERIA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The aim of this study was to evaluate the co-occurrence of some frequent fecal indicator bacteria and cyanobacteria species at San Roque reservoir (SRr), highlighting the relationship between their variability and environmental factors. This study was carried out at SRr (31°22′ S, 64°27′ O) located west of the city of Cordoba, Argentina. Physico-chemical measurements and sampling for microbiological and nutrient determinations were done at three recreational sites, during seasons of major touristic activity (spring-summer), with the aim of identifying temporal patterns of microorganism variability. In addition, we carried out laboratory experiments with local isolated bacteria (Escherichia coli and Enterococcus spp.) and axenic Microcystis aeruginosa cultures to assess an association among these microorganisms and evaluate whether it was positive or negative. Our results showed an inverse relationship between cyanobacteria and thermotolerant coliform bacteria (TtC) at SRr, which was only observed when high cyanobacteria concentration occurred (≥3.4 × 104 to 1.2 × 106 cell.mL−1). Experimental results also showed this type of relationship: E. coli and Enterococcus spp. decreased their growth in the presence of M. aeruginosa. In addition, it was observed that the variability of main phytoplanktonic species and TtC at SRr was mainly explained by temporal patterns, that is, the seasonal changes and the hydrological year. In summary, our data indicated that cyanobacteria high abundance during bloom periods could be an inhibiting factor for bacteria growth at SRr. Moreover, we demonstrated that nutrients such us P and N are not the main factors determining the variability of studied microorganisms in this eutrophic reservoir, but other factors, such as climatic conditions (temperature and precipitations), have a major influence. This study would provide a more comprehensive view on the dynamics of microorganism populations with sanitary relevance in eutrophic reservoirs.
Fil: Halac, Silvana Raquel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina. Instituto Nacional del Agua. Gerencia de Programas y Proyectos. Centro de la Region Semiarida.; Argentina
Fil: Bazán, Raquel del Valle. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina
Fil: Larrosa, Nancy Beatriz. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina
Fil: Nadal, Ana Florencia. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina
Fil: Ruibal Conti, Ana Laura. Instituto Nacional del Agua. Gerencia de Programas y Proyectos. Centro de la Region Semiarida.; Argentina
Fil: Rodriguez, Maria Ines. Instituto Nacional del Agua. Gerencia de Programas y Proyectos. Centro de la Region Semiarida.; Argentina
Fil: Ruiz, Marcia Andrea. Instituto Nacional del Agua. Gerencia de Programas y Proyectos. Centro de la Region Semiarida.; Argentina
Fil: López, Abel Gerardo. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina
description The aim of this study was to evaluate the co-occurrence of some frequent fecal indicator bacteria and cyanobacteria species at San Roque reservoir (SRr), highlighting the relationship between their variability and environmental factors. This study was carried out at SRr (31°22′ S, 64°27′ O) located west of the city of Cordoba, Argentina. Physico-chemical measurements and sampling for microbiological and nutrient determinations were done at three recreational sites, during seasons of major touristic activity (spring-summer), with the aim of identifying temporal patterns of microorganism variability. In addition, we carried out laboratory experiments with local isolated bacteria (Escherichia coli and Enterococcus spp.) and axenic Microcystis aeruginosa cultures to assess an association among these microorganisms and evaluate whether it was positive or negative. Our results showed an inverse relationship between cyanobacteria and thermotolerant coliform bacteria (TtC) at SRr, which was only observed when high cyanobacteria concentration occurred (≥3.4 × 104 to 1.2 × 106 cell.mL−1). Experimental results also showed this type of relationship: E. coli and Enterococcus spp. decreased their growth in the presence of M. aeruginosa. In addition, it was observed that the variability of main phytoplanktonic species and TtC at SRr was mainly explained by temporal patterns, that is, the seasonal changes and the hydrological year. In summary, our data indicated that cyanobacteria high abundance during bloom periods could be an inhibiting factor for bacteria growth at SRr. Moreover, we demonstrated that nutrients such us P and N are not the main factors determining the variability of studied microorganisms in this eutrophic reservoir, but other factors, such as climatic conditions (temperature and precipitations), have a major influence. This study would provide a more comprehensive view on the dynamics of microorganism populations with sanitary relevance in eutrophic reservoirs.
publishDate 2019
dc.date.none.fl_str_mv 2019-01
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/11336/125616
Halac, Silvana Raquel; Bazán, Raquel del Valle; Larrosa, Nancy Beatriz; Nadal, Ana Florencia; Ruibal Conti, Ana Laura; et al.; First report on negative association between cyanobacteria and fecal indicator bacteria at San Roque reservoir (Argentina): impact of environmental factors; Oikos Publ Inc; Journal Of Freshwater Ecology; 34; 1; 1-2019; 273-291
0270-5060
CONICET Digital
CONICET
url http://hdl.handle.net/11336/125616
identifier_str_mv Halac, Silvana Raquel; Bazán, Raquel del Valle; Larrosa, Nancy Beatriz; Nadal, Ana Florencia; Ruibal Conti, Ana Laura; et al.; First report on negative association between cyanobacteria and fecal indicator bacteria at San Roque reservoir (Argentina): impact of environmental factors; Oikos Publ Inc; Journal Of Freshwater Ecology; 34; 1; 1-2019; 273-291
0270-5060
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1080/02705060.2019.1595752
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/02705060.2019.1595752
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
dc.publisher.none.fl_str_mv Oikos Publ Inc
publisher.none.fl_str_mv Oikos Publ Inc
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
_version_ 1842269731755655168
score 13.13397

Publicaciones similares