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Publikováno v:
Journal of Fish Biology. 42:243-254
Cichlids of the genus Oreochromis are fish of economic importance in African countries. They tolerate brackish water, however, with great variations between species. In this work, two species, both from the Ivory Coast but of different origins, O. ni
Publikováno v:
Comparative Biochemistry and Physiology Part A: Physiology. 96:303-308
1. 1. Branchial ionic transport capabilities were studied in smolt and post-smolt Atlantic salmon. We used the perfused isolated head technique to make instant measurements of transbranchial Na+ exchange during direct transfer to sea water. 2. 2. The
Publikováno v:
Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology. 161(3)
Using the isolated-perfused head preparation at a constant flow rate, hemodynamic effects of adrenaline were studied in trout gills. The calculation of the vascular spaces was performed with the isotopic pulse technique allowing measurement of the di
Publikováno v:
Journal of Experimental Zoology. 241:159-169
Branchial sodium uptake was measured across secondary lamellae (SL) using the isolated-perfused head preparation. This study was correlated with histological examination. Freshwater trout, Salmo gairdneri, were exposed to various artificial media: di
Autor:
Martine Avella, M. Bornancin
Publikováno v:
Journal of Experimental Biology. 142:155-175
The mechanism of ammonia excretion and sodium absorption was re-examined in trout using the isolated-perfused head preparation. Preliminary experiments in which ammonia concentration was increased on the blood side (internal) showed that ammonia and
Publikováno v:
Journal of comparative physiology. 117:313-322
Freshwater eel gills are notorious for their limited ability to pump chloride. As a result there is a considerable discrepancy between the Na+ and Cl− plasma levels, and plasma HCO3− and blood pH are relatively high in this species.
Publikováno v:
Biochimie. 63:37-43
Resume Les branchies de l'anguille adaptee a l'eau douce ou a l'eau de mer contiennent une activite ATPasique stimulee par les anions en presence de Mg2+. Cette activite est presente dans les membranes plasmatiques en dehors de toute contamination mi
Publikováno v:
Comparative Biochemistry and Physiology Part A: Physiology. 81:35-41
The technique of perfusion of the isolated head of the trout ( Salmo gairdneri ) was re-examined. The trout head was perfused using two physiological solutions, one (solution B ) containing plasma proteins and having the same viscosity as the blood o
Publikováno v:
Comparative Biochemistry and Physiology Part A: Physiology. 87:613-622
1. 1. The perfused isolated head technique has been used to measure sodium arterial fluxes following direct transfer from fresh water to sea-water. 2. 2. A starvation-related decrease in net sodium flux is reported. 3. 3. Sexual maturation slackens t