Jeffry A. Bernardy
Terrance D. Hubert
William H. Gingerich
G. R. Stehly
Chue Vue
2002
<p><span>The selective sea lamprey (</span><i>Petromyzon marinus</i><span>) larvicide 3-trifluoromethyl-4-nitrophenol (TFM) is currently used to control parasitic sea lampreys in tributaries to the Great Lakes basin. The concentration and persistence of TFM and its major metabolite, TFM glucuronide (TFM-glu), was determined in fillet tissue of fish after a typical stream application. Rainbow trout (</span><i>Oncorhynchus mykiss</i><span>) and channel catfish (</span><i>Ictalurus punctatus</i><span>) were exposed to a nominal concentration of 12.6 nmol/mL TFM for about 12 h during a sea lamprey control treatment of the Ford River in Michigan. Concentrations of TFM and TFM-glu were greatest in the fillet tissues during the exposure period, with greater residues in channel catfish (wet wt; mean, 6.95 nmol/g TFM; mean, 2.40 nmol/g TFM-glu) than in rainbow trout (wet wt; mean, 1.45 nmol/g TFM; mean, 0.93 nmol/g TFM-glu). After the exposure period, residues in both species decreased by 90−99% within 6−12 h and were less than the quantitation limit (<0.03 nmol/g) within 36 h.</span></p>
application/pdf
10.1021/jf0204708
en
ACS Publications
Relatively rapid loss of lampricide residues from fillet tissue of fish after routine treatment
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