scholarly journals Effects of a cationic detergent on the gills and blood chemistry of rainbow trout Salmo gairdneri

1989 ◽  
Vol 6 ◽  
pp. 185-196 ◽  
Author(s):  
P Byrne ◽  
D Speare ◽  
HW Ferguson
Keyword(s):  
Rainbow Trout ◽  
Blood Chemistry ◽  
Salmo Gairdneri ◽  
Cationic Detergent

Normal Ranges for Diagnostically Important Hematological and Blood Chemistry Characteristics of Rainbow Trout (Salmo gairdneri)

1983 ◽  
Vol 40 (4) ◽  
pp. 420-425 ◽  
Author(s):  
W. Roscoe Miller III ◽  
Albert C. Hendricks ◽  
John Cairns Jr.
Keyword(s):  
Rainbow Trout ◽  
Blood Chemistry ◽  
Serum Glucose ◽  
Salmo Gairdneri ◽  
Total Serum Protein ◽  
Total Serum ◽  
Tolerance Interval ◽  
Glucose Levels ◽  
Normal Ranges ◽  
Nonparametric Techniques

Wytheville strain rainbow trout (Salmo gairdneri) were used in an 11-mo study designed to establish normal ranges for several hematological and blood chemistry characteristics. Two nonparametric techniques, percentile estimation and tolerance interval, were used and produced comparable ranges to those based on the Gaussian distribution. Serum glucose levels appeared to coincide with the condition of the gonads; low glucose levels corresponded with approximate spawning times at the hatchery. Total serum protein and gonadal condition were similarly related. High variability of the serum enzymes LDH and SGOT was partially explained by a positive linear relationship between enzyme activity and acclimation temperatures. In addition to physiological significance, determination of normal ranges for rainbow trout has promise in diagnosis of pathological, disease, and toxicant-induced stresses.

Long-Term Sublethal Acid Exposure in Rainbow Trout (Salmo gairdneri) in Soft Water: Effects on Ion Exchanges and Blood Chemistry

1988 ◽  
Vol 45 (8) ◽  
pp. 1387-1398 ◽  
Author(s):  
Céline Audet ◽  
R. Stephen Munger ◽  
Chris M. Wood
Keyword(s):  
Rainbow Trout ◽  
Ammonia Excretion ◽  
Blood Chemistry ◽  
Soft Water ◽  
Acid Exposure ◽  
Salmo Gairdneri ◽  
Plasma Parameters ◽  
Water Effects ◽  
Net Flux

Long-term sublethal acid exposure (3 mo, pH 4.8) in adult rainbow trout (Salmo gairdneri) acclimated to artificial soft water (Ca2+ = 50, Na+ = 50, Cl− = 100 μeq∙L−1) caused transient net fosses of Na+ and Cl−. Net flux rates of both ions were returned to control levels after 30–52 d of acid exposure through a new equilibrium between unidirectional influx and efflux, where both were lower than control rates. K+ balance remained negative and Ca2+ balance at zero throughout the exposure. No changes in net acidic equivalent flux occurred, indicating the absence of acid–base disturbance, but ammonia excretion increased over time. Muscle K+, Na+, and Cl− fell and Ca2+ increased. Plasma Na+, Cl−, and osmolality decreased, while plasma protein, glucose, and blood hemoglobin increased during the first few weeks of acid exposure. Plasma K+ and Ca2+ did not change. General stabilization of plasma parameters occurred in concert with the stabilization of Na+ and Cl− flux rates, but no recovery to control levels was observed for any of them. We conclude that despite this stabilization at a new steady state, rainbow trout were physiologically affected in a deleterious manner by chronic sublethal acid exposure in soft water.

Some Blood Chemistry Values for the Rainbow Trout (Salmo gairdneri)

1970 ◽  
Vol 27 (6) ◽  
pp. 1162-1164 ◽  
Author(s):  
Gary Wedemeyer ◽  
K. Chatterton
Keyword(s):  
Rainbow Trout ◽  
Normal Distribution ◽  
Blood Urea Nitrogen ◽  
Total Protein ◽  
Kidney Tissue ◽  
Blood Chemistry ◽  
Salmo Gairdneri ◽  
Clinical Test ◽  
Urea Nitrogen ◽  
Normal Ranges

Normal distribution curves were graphically fitted to approximately 1400 clinical test values obtained from the plasma or kidney tissue of more than 200 yearling rainbow trout (Salmo gairdneri). Estimated normal ranges were ascorbate, 102–214 μg/g; blood urea nitrogen (BUN), 0.9–4.5 mg/100 ml; chloride, 84–132 mEq/liter; cholesterol, 161–365 mg/100 ml; cortisol, 1.5–18.5 μg/100 ml; glucose, 41–151 mg/100 ml; and total protein, 2–6 g/100 ml.

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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