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dc.date.accessioned 2018-08-23T17:32:41Z
dc.date.available 2018-08-23T17:32:41Z
dc.date.issued 2009
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/68609
dc.description.abstract Don Tomás is a shallow, hypereutrophic lake that received sewage inputs from the city of Santa Rosa until 1987. In 1993, the main body of water was divided into smaller adjacent ponds. One of these ponds, Canotaje pond (with a small surface area and average depth), receives an important urban runoff from the city. Thus, the high load of nutrients and sediments after a storm should result in a higher trophic state than Don Tomás. The objective of this research was to compare the limnological characteristics of both water bodies to verify their trophic status. We did not find any significant statistical differences among the measured variables in the two systems, except for water conductivity and suspended organic solids, which were higher in Don Tomás, and for dissolved phosphorus, which was higher in Canotaje. Laboratory experiments determined that the phytoplankton community of both systems was limited by nitrogen, which is consistent with the observed low Redfield ratio of dissolved N and P (1.32). Algal diversity in both systems was represented by 66 taxa, 1/3 of which belonged to the phylum Cyanophyta. In addition, a Planktothrix agardhii bloom was observed in both water bodies. From the present study, we determined that Don Tomás and Canotaje have the same trophic state (i.e. hypereutrophic). In spite of the high urban runoff loaded with nutrients and sediments into Canotaje, the high amounts of P present in this system sediments would make both ponds highly resilient to changes in trophic state. en
dc.format.extent 177-184 es
dc.language es es
dc.subject estado trófico es
dc.subject La Pampa (Argentina) es
dc.subject estabilida es
dc.subject lavado por lluvia es
dc.title Efecto del lavado de la ciudad de Santa Rosa sobre el estado trófico de una laguna arreica es
dc.type Articulo es
sedici.identifier.issn 0326-1638 es
sedici.creator.person Pilati, A. es
sedici.creator.person Echaniz, Santiago Andrés es
sedici.creator.person Vignatti, Alicia es
sedici.creator.person Trucco, A. es
sedici.creator.person Álvarez, S. B. es
sedici.subject.materias Ciencias Naturales es
sedici.description.fulltext true es
mods.originInfo.place Instituto de Limnología "Raúl A. Ringuelet" es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/
sedici.relation.event V Congreso de Ecología y Manejo de Ecosistemas Acuáticos Pampeanos (EMEAP) (Luján, 2008) es
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Biología Acuática es
sedici.relation.journalVolumeAndIssue no. 26 es


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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) Except where otherwise noted, this item's license is described as Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)