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Relatively rapid loss of lampricide residues from fillet tissue of fish after routine treatment

Journal of Agricultural and Food Chemistry

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Abstract

The selective sea lamprey (Petromyzon marinus) 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 (Oncorhynchus mykiss) and channel catfish (Ictalurus punctatus) 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.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Relatively rapid loss of lampricide residues from fillet tissue of fish after routine treatment
Series title:
Journal of Agricultural and Food Chemistry
Volume
50
Issue:
23
Year Published:
2002
Language:
English
Publisher:
U.S. Geological Survey
Contributing office(s):
Upper Midwest Environmental Sciences Center
Description:
pp. 6786-6789
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Agricultural and Food Chemistry
First page:
6786
Last page:
6789
Number of Pages:
4