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dc.date.accessioned 2018-08-23T17:24:10Z
dc.date.available 2018-08-23T17:24:10Z
dc.date.issued 2009
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/68607
dc.description.abstract South of the Villa Mercedes city (San Luis province, Argentina), there are over one hundred shallow lakes of different surface. Many of these lakes are exploited as recreational fishery resources. However, the information available about the ecology and fishes is very limited. In october 2007, the main ichthyofauna characteristics and different ecological aspects of six shallow lakes (34º00’S, 65º24’’W) were studied with special focus on the pejerrey Odontesthes bonariensis population. The average area of shallow lakes was 17.8 (±9.9) ha. Turbid (green) and clear shallow lakes were observed with great abundance of Potamogeton berteroanus and Secchi disk values of were up to 2.30 m. All the lakes showed a reed belt of Schoenoplectus americanus with a different degree of development. The abundance of zooplankton was variable with a maximum of 338167 org/m3. The water was classified as oligohaline and very hard. In total, 7 species of fishes were caught distributed in 4 orders and 5 families: O. bonariensis, Astyanax eigenmanniorum, Cheirodon interruptus, Oligosarcus jenynsii, Corydoras paleatus, Cnesterodon decemmaculatus y Jenynsia multidentata. The Shannon-Wiener diversity index was low to medium (0.91-1.55 bits). The largest capture per unit effort of O. bonariensis (CPUEp) was 28.6 kg/20hs/net with a proportional stock density (PSD) of 60.7. en
dc.format.extent 151-165 es
dc.language es es
dc.subject Lagunas es
dc.subject ictiofauna es
dc.subject San Luis (Argentina) es
dc.subject Ecología es
dc.subject pejerrey es
dc.title Diferentes aspectos ecológicos e ictiofauna de seis lagunas mercedinas (provincia de San Luis, Argentina) es
dc.type Articulo es
sedici.identifier.issn 0326-1638 es
sedici.creator.person Mancini, M. es
sedici.creator.person Salinas, V. es
sedici.creator.person Haro, J. G. 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)