Distribución y abundancia de gasterópodos en las macrófitas de un arroyo de llanura

Autores
Pezzani, S.; Poretti, T.
Año de publicación
2006
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The gasteropods distribution was studied and it was analyzed the influence of the aquatic macrophytes biomass fluctuation and the structuring environmental factors. Sampling was carried out in Las Flores stream, a Lujan river tributary, from April 2000 to February 2002. Egeria densa (submerged), Hydrocotyle ranunculoides and Alternanthera philoxeroides (rooted) were the most representative macrophytes. Heleobia piscium and Gundlachia concentrica occurred as the dominant gasteropods. For all other associated macroinvertebrates on macrophytes, Hyalella sp. was predominat. The rainfall and the consequent inflow increase were influenced on the macrophytes biomass and their associated fauna. The macrophytes biomass was one of the factor related to the temporal abundance of gasteropods. However, these variations in the abundance of the gasteropods were more related with the life cycle. Their largest gasteropods and anfipods density was shown on rooted macrophytes. Heleobia piscium, G. concentrica and Hyalella sp. coexist on the same macrophyte during the low abundance periods without any competition. Although, during the breeding period, the displacement of the other macroinvertebrates populations was observed. This suggests interespecific competition by substrate and food between the two gasteropods species while the competition with the anfipods is mainly by substrate. Gasteropods and anfipods consume different type of food. Heleobia piscium and G. concentrica colonize these macrophytes with some preferance. These gasteropods are opportunists species whose distribution and supervivence strategy is as follow: to colonize different aquatic macrophytes showing each species some preference by sumerged or rooted macrophytes; to have an annual breeding period with a high recruitment of individuals which allow to maintain the populations despite the disturbances effect.
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Instituto de Limnología "Dr. Raul A. Ringuelet" (ILPLA)
Materia
Ciencias Naturales
gasterópodos
gasteropod, macroinvertebrates, stream, aquatic macrophytes
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/69517
Acceder
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network_name_str SEDICI (UNLP)
spelling Distribución y abundancia de gasterópodos en las macrófitas de un arroyo de llanuraPezzani, S.Poretti, T.Ciencias Naturalesgasterópodosgasteropod, macroinvertebrates, stream, aquatic macrophytesThe gasteropods distribution was studied and it was analyzed the influence of the aquatic macrophytes biomass fluctuation and the structuring environmental factors. Sampling was carried out in Las Flores stream, a Lujan river tributary, from April 2000 to February 2002. Egeria densa (submerged), Hydrocotyle ranunculoides and Alternanthera philoxeroides (rooted) were the most representative macrophytes. Heleobia piscium and Gundlachia concentrica occurred as the dominant gasteropods. For all other associated macroinvertebrates on macrophytes, Hyalella sp. was predominat. The rainfall and the consequent inflow increase were influenced on the macrophytes biomass and their associated fauna. The macrophytes biomass was one of the factor related to the temporal abundance of gasteropods. However, these variations in the abundance of the gasteropods were more related with the life cycle. Their largest gasteropods and anfipods density was shown on rooted macrophytes. Heleobia piscium, G. concentrica and Hyalella sp. coexist on the same macrophyte during the low abundance periods without any competition. Although, during the breeding period, the displacement of the other macroinvertebrates populations was observed. This suggests interespecific competition by substrate and food between the two gasteropods species while the competition with the anfipods is mainly by substrate. Gasteropods and anfipods consume different type of food. Heleobia piscium and G. concentrica colonize these macrophytes with some preferance. These gasteropods are opportunists species whose distribution and supervivence strategy is as follow: to colonize different aquatic macrophytes showing each species some preference by sumerged or rooted macrophytes; to have an annual breeding period with a high recruitment of individuals which allow to maintain the populations despite the disturbances effect.Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Instituto de Limnología "Dr. Raul A. Ringuelet" (ILPLA)2006-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf209-214http://sedici.unlp.edu.ar/handle/10915/69517spainfo:eu-repo/semantics/altIdentifier/issn/0326-1638info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:02:57Zoai:sedici.unlp.edu.ar:10915/69517Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:02:57.551SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Distribución y abundancia de gasterópodos en las macrófitas de un arroyo de llanura
title Distribución y abundancia de gasterópodos en las macrófitas de un arroyo de llanura
spellingShingle Distribución y abundancia de gasterópodos en las macrófitas de un arroyo de llanura
Pezzani, S.
Ciencias Naturales
gasterópodos
gasteropod, macroinvertebrates, stream, aquatic macrophytes
title_short Distribución y abundancia de gasterópodos en las macrófitas de un arroyo de llanura
title_full Distribución y abundancia de gasterópodos en las macrófitas de un arroyo de llanura
title_fullStr Distribución y abundancia de gasterópodos en las macrófitas de un arroyo de llanura
title_full_unstemmed Distribución y abundancia de gasterópodos en las macrófitas de un arroyo de llanura
title_sort Distribución y abundancia de gasterópodos en las macrófitas de un arroyo de llanura
dc.creator.none.fl_str_mv Pezzani, S.
Poretti, T.
author Pezzani, S.
author_facet Pezzani, S.
Poretti, T.
author_role author
author2 Poretti, T.
author2_role author
dc.subject.none.fl_str_mv Ciencias Naturales
gasterópodos
gasteropod, macroinvertebrates, stream, aquatic macrophytes
topic Ciencias Naturales
gasterópodos
gasteropod, macroinvertebrates, stream, aquatic macrophytes
dc.description.none.fl_txt_mv The gasteropods distribution was studied and it was analyzed the influence of the aquatic macrophytes biomass fluctuation and the structuring environmental factors. Sampling was carried out in Las Flores stream, a Lujan river tributary, from April 2000 to February 2002. Egeria densa (submerged), Hydrocotyle ranunculoides and Alternanthera philoxeroides (rooted) were the most representative macrophytes. Heleobia piscium and Gundlachia concentrica occurred as the dominant gasteropods. For all other associated macroinvertebrates on macrophytes, Hyalella sp. was predominat. The rainfall and the consequent inflow increase were influenced on the macrophytes biomass and their associated fauna. The macrophytes biomass was one of the factor related to the temporal abundance of gasteropods. However, these variations in the abundance of the gasteropods were more related with the life cycle. Their largest gasteropods and anfipods density was shown on rooted macrophytes. Heleobia piscium, G. concentrica and Hyalella sp. coexist on the same macrophyte during the low abundance periods without any competition. Although, during the breeding period, the displacement of the other macroinvertebrates populations was observed. This suggests interespecific competition by substrate and food between the two gasteropods species while the competition with the anfipods is mainly by substrate. Gasteropods and anfipods consume different type of food. Heleobia piscium and G. concentrica colonize these macrophytes with some preferance. These gasteropods are opportunists species whose distribution and supervivence strategy is as follow: to colonize different aquatic macrophytes showing each species some preference by sumerged or rooted macrophytes; to have an annual breeding period with a high recruitment of individuals which allow to maintain the populations despite the disturbances effect.
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Instituto de Limnología "Dr. Raul A. Ringuelet" (ILPLA)
description The gasteropods distribution was studied and it was analyzed the influence of the aquatic macrophytes biomass fluctuation and the structuring environmental factors. Sampling was carried out in Las Flores stream, a Lujan river tributary, from April 2000 to February 2002. Egeria densa (submerged), Hydrocotyle ranunculoides and Alternanthera philoxeroides (rooted) were the most representative macrophytes. Heleobia piscium and Gundlachia concentrica occurred as the dominant gasteropods. For all other associated macroinvertebrates on macrophytes, Hyalella sp. was predominat. The rainfall and the consequent inflow increase were influenced on the macrophytes biomass and their associated fauna. The macrophytes biomass was one of the factor related to the temporal abundance of gasteropods. However, these variations in the abundance of the gasteropods were more related with the life cycle. Their largest gasteropods and anfipods density was shown on rooted macrophytes. Heleobia piscium, G. concentrica and Hyalella sp. coexist on the same macrophyte during the low abundance periods without any competition. Although, during the breeding period, the displacement of the other macroinvertebrates populations was observed. This suggests interespecific competition by substrate and food between the two gasteropods species while the competition with the anfipods is mainly by substrate. Gasteropods and anfipods consume different type of food. Heleobia piscium and G. concentrica colonize these macrophytes with some preferance. These gasteropods are opportunists species whose distribution and supervivence strategy is as follow: to colonize different aquatic macrophytes showing each species some preference by sumerged or rooted macrophytes; to have an annual breeding period with a high recruitment of individuals which allow to maintain the populations despite the disturbances effect.
publishDate 2006
dc.date.none.fl_str_mv 2006-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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info:ar-repo/semantics/articulo
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status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/69517
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dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0326-1638
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
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repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
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