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dc.contributor.author
Ardohain, Diego Martin
dc.contributor.author
Benitez, Hernan Hugo
dc.contributor.author
Claps, Maria Cristina
dc.contributor.author
Gabellone, Nestor Adrian
dc.date.available
2017-12-22T16:19:59Z
dc.date.issued
2005-12
dc.identifier.citation
Ardohain, Diego Martin; Benitez, Hernan Hugo; Claps, Maria Cristina; Gabellone, Nestor Adrian; Estructura y dinámica de rotíferos planctónicos en dos lagunas pampásicas: similitudes y diferencias; Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología "Dr. Raúl Ringuelet"; Biología Acuática; 22; 12-2005; 7-18
dc.identifier.issn
0326-1638
dc.identifier.uri
http://hdl.handle.net/11336/31386
dc.description.abstract
The structure and dynamic of planktonic rotifers were analysed in successive years in two shallow lakes (Lacombe and San Miguel del Monte) with different hydrological characteristics and aquatic macrophytes. Lacombe is characterized by the absence of tributaries, its small area and the presence of central annular stands of emergent macrophytes (Scirpus californicus) that reduce the open water sector. In this lake, during the study colonization by sumerged macrophytes occurred and an extensive clear water period was detected. San Miguel del Monte has two affluents and the emerged macrophytes (S. californicus) are observed in some littoral sectors. Two sampling stations were located in both lakes: one at the deeper part of the lake and the other in a sector with emergent macrophytes. Spatial-temporal changes of planktonic rotifers in the water column were examined. The perennial species found in these shallow lakes are considered to be common in eutrophic waters, eurytopic, and are widely distributed. The 59% of total species richness were common to both environments. The minor number of species recorded in Lacombe could be related to the structure of the egg banks in sediments and the impossibility of certain species to colonize from other water bodies. The occurrence of sumerged macrophytes (Potamogeton pectinatus and Myriophyllum quitense) in Lacombe favoured the presence of numerous periphytic species of Trichocercidae and Lecanidae in the open water sector. Records of some species (Brachionus havanaensis, B. plicatilis, Hexarthra fennica, Keratella cochlearis, Notholca acuminata and N. squamula) were related to their temperature or salinity preferences. Two rotifer peaks were recorded in Lacombe: one in later spring-early summer and other in autumn, whereas in San Miguel del Monte occurred in spring and early summer. In particular occasions during these seasons, the rotifer abundance diminished related to abundant local rainfall that stressed rotifer populations.
dc.format
application/pdf
dc.language.iso
spa
dc.publisher
Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología "Dr. Raúl Ringuelet"
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Rotifers
dc.subject
Plankton
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Pampasic Shallow Lakes
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Temporal Variations
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Causes
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Biología Marina, Limnología
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Estructura y dinámica de rotíferos planctónicos en dos lagunas pampásicas: similitudes y diferencias
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-11-03T20:15:37Z
dc.journal.volume
22
dc.journal.pagination
7-18
dc.journal.pais
Argentina
dc.description.fil
Fil: Ardohain, Diego Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología ; Argentina
dc.description.fil
Fil: Benitez, Hernan Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología ; Argentina
dc.description.fil
Fil: Claps, Maria Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología ; Argentina
dc.description.fil
Fil: Gabellone, Nestor Adrian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología ; Argentina
dc.journal.title
Biología Acuática
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.bacuatica.org/BA_ant/ba22.pdf
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