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Description: |
5 pages : illustrations, tables ; 26 cm. |
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With Note: |
With: Effects of synergized rotenone on nontarget organisms in ponds / by R.M. Burress. (No. 91). |
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Bibliography Note: |
Includes bibliographical references (pages 4-5). |
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Summary, Etc. Note: |
Abstract: Residues of the 2-aminoethanol salt of 2,́ 5-dichloro-4-́nitrosalicylanilide (Bayer 73), as determined by gas-liquid chromatography, were rapidly accumulated by fish exposed to the lampricide -- in blood plasma, gallbladder bile, and muscle tissue of coho salmon and rainbow trout, and in the bile and muscle of channel catfish and largemouth bass. Muscle residue levels increased to near the treatment concentration during exposure. After 10 days of withdrawal, residues in plasma, bile, and muscle of rainbow trout and coho salmon decreased to less than 1% of their respective peak concentrations. In all four species, residues in muscle dropped below the limit of detection (0.01 microgram/gram) within 3 to 14 days. After an initial increase during early withdrawal, bile residues in all species declined steadily but had not dropped below initial levels in channel catfish in 14 days, or below detectable levels (0.01 microgram/gram) in coho salmon after 28 days of withdrawal. |