The influence of swimming activity on sodium balance in the rainbow trout (Salmo gairdneri)

1973 ◽  
Vol 82 (3) ◽  
pp. 207-233 ◽  
Author(s):  
Chris M. Wood ◽  
D. J. Randall
Keyword(s):  
Rainbow Trout ◽  
Swimming Activity ◽  
Sodium Balance ◽  
Salmo Gairdneri

The influence of swimming activity on water balance in the rainbow trout (Salmo gairdneri)

1973 ◽  
Vol 82 (3) ◽  
pp. 257-276 ◽  
Author(s):  
Chris M. Wood ◽  
D. J. Randall
Keyword(s):  
Rainbow Trout ◽  
Water Balance ◽  
Swimming Activity ◽  
Salmo Gairdneri

Na+:K+- and HCO3−-stimulated ATPase activities in the gills and kidneys of thermally acclimated rainbow trout, Salmo gairdneri

1977 ◽  
Vol 55 (4) ◽  
pp. 704-712 ◽  
Author(s):  
L. S. McCarty ◽  
A. H. Houston
Keyword(s):  
Rainbow Trout ◽  
Significant Variation ◽  
Sodium Balance ◽  
Salmo Gairdneri ◽  
Acclimation Temperature ◽  
Sodium Potassium ◽  
Cold Adapted ◽  
Atpase System ◽  
Temperature Amplifier ◽  
Assay Conditions

Gill and kidney Mg2+-dependent, Na+:K+- and HCO3−-stimulated ATPase (EC 3.6.1.3) activities were estimated at 25 °C and at acclimation temperature in rainbow trout, Salmo gairdneri, acclimated to 2, 10, and 18 °C, as were plasma levels of sodium, potassium, and chloride. Sodium and chloride exhibited no significant variation between 2 and 18 °C; potassium levels were elevated at 18 °C. When assayed at 25 °C Mg2+-dependent and HCO3−-stimulated ATPase activities did not vary consistently or significantly in relation to acclimation temperature. Under comparable assay conditions both gill and kidney Na+:K+-stimulated activities declined at higher acclimation temperatures. Significant increases in all activities were encountered when preparations were incubated at the appropriate acclimation temperature. The data suggest that the branchial Na+:K+–ATPase system serves primarily as a high-temperature amplifier of sodium uptake, and may contribute little to the maintenance of sodium balance in the cold-adapted animal. No evidence of a critical involvement of HCO3−-stimulated ATPase in ionic regulations was obtained.

Sodium balance in the rainbow trout (Salmo gairdneri) during extended exercise

1973 ◽  
Vol 82 (3) ◽  
pp. 235-256 ◽  
Author(s):  
Chris M. Wood ◽  
D. J. Randall
Keyword(s):  
Rainbow Trout ◽  
Sodium Balance ◽  
Salmo Gairdneri

Serum estradiol-17β during the preovulatory development of the rainbow trout (Salmo gairdneri)

1985 ◽  
Vol 110 (1_Suppla) ◽  
pp. S163
Author(s):  
R. SCHULZ ◽  
V. BLÜM
Keyword(s):  
Rainbow Trout ◽  
Salmo Gairdneri ◽  
Serum Estradiol ◽  
Estradiol 17Β

STUDIES ON THE HORMONAL CONTROL OF SODIUM METABOLISM IN THE RAINBOW TROUT (SALMO GAIRDNERI)

1959 ◽  
Vol XXXI (IV) ◽  
pp. 587-602 ◽  
Author(s):  
W. N. Holmes
Keyword(s):  
Rainbow Trout ◽  
Hormonal Control ◽  
Salmo Gairdneri ◽  
Sodium Metabolism

Temperature Selection of Rainbow Trout (Salmo gairdneri) Fingerlings in Vertical and Horizontal Gradients

1971 ◽  
Vol 28 (11) ◽  
pp. 1801-1804 ◽  
Author(s):  
R. W. McCauley ◽  
W. L. Pond
Keyword(s):  
Rainbow Trout ◽  
Salmo Gairdneri ◽  
Temperature Preference ◽  
Temperature Selection ◽  
Horizontal Gradients ◽  
Significant Difference ◽  
Preferred Temperatures ◽  
Laboratory Investigations ◽  
Horizontal Temperature Gradients ◽  
Selection Of

Preferred temperatures of underyearling rainbow trout (Salmo gairdneri) were determined in both vertical and horizontal temperature gradients. No statistically significant difference was found between the preferred temperatures by the two different methods. This suggests that the nature of the gradient plays a lesser role than generally believed in laboratory investigations of temperature preference.

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