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Artículo

Influence of climate variations on Chascomús shallow lake thermal conditions and its consequences on the reproductive ecology of the Argentinian Silverside (Odontesthes bonariensis—Actinopterygii, Atherinopsidae)

Elisio, MarianoIcon ; Vitale, Alejandro JoséIcon ; Miranda, Leandro AndresIcon
Fecha de publicación: 06/2014
Editorial: Springer
Revista: Hydrobiologia
ISSN: 0018-8158
e-ISSN: 1573-5117
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Biología

Resumen

It is well known that water temperature directly affects fish reproduction. The aim of this study was to develop a predictive model to determine water temperature conditions on a typical Pampas shallow lake (Chascomús, 35°36′S, 58°02′W) from local climate variables (specifically air temperature and rainfall). In addition, this model was used to assess the variability of local climate and water temperature conditions in this lake over the last 47 years, and predict possible effects on pejerrey reproductive phenology. The temperature model showed a good fit demonstrating a direct influence of the local climate into the lake water temperature. As consequence of a demonstrated warming in Chascomús City, an average increase of 1.4°C was evident in Chascomús lake over the analyzed period, which was mainly due to a thermal increase during the warmer seasons (spring, summer, and autumn). This pattern of warming drove to a shortening in the pejerrey spawning season length, estimating a decrease of 19 days over the period of 47 years. Thus, this study showed that a tight association between the climate variability and the change in fish reproductive phenology can occur in species inhabiting shallow lakes.
Palabras clave: Climate Variability , Numerical Modeling , Pejerrey Fish , Reproductive Phenology , Water Temperature
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Atribución-NoComercial-SinDerivadas 2.5 Argentina (CC BY-NC-ND 2.5 AR)
Identificadores
URI: http://hdl.handle.net/11336/12516
URL: http://link.springer.com/article/10.1007%2Fs10750-014-1945-y
DOI: http://dx.doi.org/10.1007/s10750-014-1945-y
Colecciones
Articulos(CCT - LA PLATA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - LA PLATA
Articulos(IADO)
Articulos de INST.ARG.DE OCEANOGRAFIA (I)
Citación
Elisio, Mariano; Vitale, Alejandro José; Miranda, Leandro Andres; Influence of climate variations on Chascomús shallow lake thermal conditions and its consequences on the reproductive ecology of the Argentinian Silverside (Odontesthes bonariensis—Actinopterygii, Atherinopsidae); Springer; Hydrobiologia; 752; 1; 6-2014; 155-166
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