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Description: |
6 pages : tables ; 26 cm. |
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With Note: |
With: Survival of two species of freshwater clams, Corbicula leana and Magnonaias boykiniana, after exposure to antimycin / by L.L. Marking and J.H. Chandler, Jr. (No. 83) -- Hydrolysis and photolysis of the lampricide 2',5-dichloro-4'-nitrosalicylanilide (Bayer 73) / by D.P. Schultz and P.D. Harman. (No. 85). |
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Bibliography Note: |
Includes bibliographical references (page 6). |
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Summary, Etc. Note: |
Abstract: Effects of the lampricide 3-trifluoromethyl-4-nitrophenol (TFM) on brook trout were compared under conditions of continuous (chronic) exposure, and under conditions simulating those used in the application of TFM in tributary streams of the Great Lakes for control of the sea lamprey. Chronic exposure of adult brook trout to concentrations of 4.0 milligrams/liter or higher caused deleterious effects on growth, spawning, survival during spawning, and eye condition. Hatchability and viability of the eggs were reduced. Growth and survival were reduced in the fry at TFM concentrations of 1.6 milligrams/liter or higher. No deleterious effects were noted at lower concentrations. The only effect observed in fish after simulated use-pattern exposure to TFM was a decrease in survival of adults tested at 15 degrees Centigrade. |