Variaciones de la concentración de sodio plasmático en el teleósteo eurihalino <i>Jenynsia lineata</i> (Jenyns, 1842) luego del pasaje a soluciones hipertónicas
The mechanism of secondary or diff ered rngulation of a possib.le hormonal origin in the eurvaline teleost J enysia lineata (Jenyns, 1842) is studied in an attempt to determine if the Cyprinodontiformes constitute a peculiar group of eurvhalines. The results obtained mark an increase -statistically...
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| Formato: | Articulo |
| Lenguaje: | Español |
| Publicado: |
1968
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/51193 |
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| Sumario: | The mechanism of secondary or diff ered rngulation of a possib.le hormonal origin in the eurvaline teleost J enysia lineata (Jenyns, 1842) is studied in an attempt to determine if the Cyprinodontiformes constitute a peculiar group of eurvhalines. The results obtained mark an increase -statistically significative- of osmotic pressure and, or the concentration of plasmatic Na in the first hours after the passing of hipertonic solutions and also a gradual decline towards values quite near to those char,acteristic of fresh water. The possible, mechanism that are responsable for the excretion of Na excess are considerate. |
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