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OXYGEN CONSUMPTION IN THE GILLS OF TILAPIA AUREA (STEINDACHINER) (PISCES, CICHLIDAE) IN VARIOUS SALINE CONDITIONS
in Israel Journal of Ecology and EvolutionSearch for other papers by RUTH LOTAN in
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A relationship was found to exist between the oxygen consumption of the gills and the osmotic pressure of the blood, in Tilapia aurea (Steindachner) which had undergone prior adaptation to various salinities. At a dilution of 40% sea water and in undiluted sea water, when the osmotic concentration in the blood is low, the oxygen consumption is also low. At a dilution of 60% sea water, the osmotic concentration in the blood is high, and so is the oxygen consumption of the gills. At a dilution of 80% sea water, the osmotic pressure in the blood is again low, but the oxygen consumption in the gills remains high. Hence it was concluded that the stimulation of a salinity threshold, above a dilution of 60% sea water, is required for the efficient operation of the regulatory osmotic salt water mechanism.
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Graetz E.Versuch einer exakten Analyse der zur Osmoregulation benötigten Kräfte in ihrer Beziehung zum Gesamtstoffwechsel von Süsswasserstichlingen in hypo—und hypertonischen Medien Zool. Jahrb. Abt. Allgem. Zool., Physiol 1931 49 37 58
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Ekbekg D.R.Respiration in tissues of goldfish adapted to high and low temperature Biol. Bull 1958 114 3 308 316
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Krogh A.Osmotic Regulation in Aquatic Animals University Press Cambridge 1939The
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Meyer D.K.Sodium flux through the gills of goldfish Am. J. Physiol 1951 165 3 580 587
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Trewavas E.Tilapia aurea (Steindachner) and the status of Tilapia nilotica exul., T. monodi T. lemassoni (Pisces, Cichlidae) Israel J. Zool 1965 14 258 276
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| Insgesamt | Letzte 365 Tage | In den letzten 30 Tagen | |
|---|---|---|---|
| Aufrufe von Kurzbeschreibungen | 147 | 44 | 7 |
| Gesamttextansichten | 8 | 0 | 0 |
| PDF-Downloads | 4 | 0 | 0 |
OXYGEN CONSUMPTION IN THE GILLS OF TILAPIA AUREA (STEINDACHINER) (PISCES, CICHLIDAE) IN VARIOUS SALINE CONDITIONS
in Israel Journal of Ecology and EvolutionSearch for other papers by RUTH LOTAN in
Current site
Google Scholar
PubMed
A relationship was found to exist between the oxygen consumption of the gills and the osmotic pressure of the blood, in Tilapia aurea (Steindachner) which had undergone prior adaptation to various salinities. At a dilution of 40% sea water and in undiluted sea water, when the osmotic concentration in the blood is low, the oxygen consumption is also low. At a dilution of 60% sea water, the osmotic concentration in the blood is high, and so is the oxygen consumption of the gills. At a dilution of 80% sea water, the osmotic pressure in the blood is again low, but the oxygen consumption in the gills remains high. Hence it was concluded that the stimulation of a salinity threshold, above a dilution of 60% sea water, is required for the efficient operation of the regulatory osmotic salt water mechanism.
| Insgesamt | Letzte 365 Tage | In den letzten 30 Tagen | |
|---|---|---|---|
| Aufrufe von Kurzbeschreibungen | 147 | 44 | 7 |
| Gesamttextansichten | 8 | 0 | 0 |
| PDF-Downloads | 4 | 0 | 0 |
