Rapid loss of lampricide from catfish and rainbow trout following routine treatment

Journal of Agricultural and Food Chemistry
By: , and 

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Abstract

Rainbow trout (Oncorhynchus mykiss) and channel catfish (Ictalurus punctatus) were exposed to 3-trifluoromethyl-4-nitrophenol (TFM) and Bayluscide (niclosamide) during a sea lamprey control treatment of the Ford River, located in the upper peninsula of Michigan. Caged fish were exposed to a nominal concentration of 0.02 mg/L of niclosamide for a period of approximately 12 h. Samples of fillet tissue were collected from each fish species before treatment and at 6, 12, 18, 24, 48, 96, and 192 h following the arrival of the block of chemical at the exposure site. The fish were dissected, homogenized, extracted, and analyzed by high-performance liquid chromatography. The major residues found in the fillet tissues were TFM and niclosamide. Niclosamide concentrations were highest 12 h after arrival of the chemical block for rainbow trout (0.0395 ?? 0.0251 ??g/g) and 18 h after arrival of the chemical block for channel catfish (0.0465 ?? 0.0212 ??g/g). Residues decreased rapidly after the block of lampricide had passed and were below the detection limits in fillets of rainbow trout within 24 h and channel catfish within 96 h after the arrival of the lampricide.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Rapid loss of lampricide from catfish and rainbow trout following routine treatment
Series title Journal of Agricultural and Food Chemistry
DOI 10.1021/jf020443h
Volume 50
Issue 23
Year Published 2002
Language English
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Journal of Agricultural and Food Chemistry
First page 6780
Last page 6785
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