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Susceptibility of Nanophyetus salmonicola cercariae to formalin, hydrogen peroxide and seawater


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Hershberger, P.K., 2018, Susceptibility of Nanophyetus salmonicola cercariae to formalin, hydrogen peroxide and seawater: U.S. Geological Survey data release,


The ability of formalin, PEROX-AID® (hydrogen peroxide), and seawater to kill waterborne Nanophyetus salmincola cercariae was evaluated in vitro. Newly emerged waterborne cercariae survived for extended periods in freshwater, with 50-74% survival occurring in negative control groups after 24 hr. Exposure to dilutions of formalin reduced this survival time, with 0% of cercariae surviving after 30 min. in 167 ppm, 40 min. in 83 ppm, and 180 min. in 42ppm. Exposure to PEROX-AID® (hydrogen peroxide) for one hour resulted in reduced cercariae survival (16.4%) only at the highest concentration (100 ppm), compared to 100% survival in the untreated controls and all lesser concentrations. Dilutions of seawater resulted in reduced cercariae [...]


Point of Contact :
Paul K Hershberger
Originator :
Paul K Hershberger
Metadata Contact :
Paul K Hershberger
Publisher :
U.S. Geological Survey
SDC Data Owner :
Western Fisheries Research Center
USGS Mission Area :
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

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Metadata II.csv
“Susceptibility of Nanophyetus salmonicola cercarae Data File”
10.46 KB
Susceptibility of Nanophyetus salmonicola cercariae metadata.xml
“FGDC Biological Data Profile of the Content Standard for Digital Geospatial Meta”
Original FGDC Metadata

13.84 KB


Data were collected to provide prophylactic management options for mitigating the impacts of fish mortality from Nanophyetus infections.


  • USGS Data Release Products



Additional Information


Type Scheme Key
DOI doi:10.5066/F78051W2

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