Abstract

GOMEZ, Sergio E. Máximo térmico crítico en peces argentinos de agua dulce, Sudamérica. Rev. Mus. Argent. Cienc. Nat. [online]. 2014, vol.16, n.2, pp.123-127. ISSN 1853-0400.

Using the critical thermal maximum technique with heating at 18°C/hour and from very different temperatures acclimation, the lethal temperature values and loss of equilibrium temperatures in eight pampasic species were identified. The results show a physiological relationship with the various "ecological types" in relation to temperature. The open-water fish and shore fish show greater tolerance than lower bottom fish, according to the stability of the environment.

Keywords : Critical thermal maximum; Pampasic fish; Ecological types; South America.

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