The prevalence, density and impact of Lepeophtheirus salmonis (Krøyer) infestation on juvenile pink salmon (Oncorhynchus gorbuscha) from the central coast of British Columbia, Canada

Publication year: 2008
Source: Fisheries Research, Volume 91, Issue 1, May 2008, Pages 35-41</br>
Kevin G., Butterworth , K. Fiona, Cubitt , R. Scott, McKinley</br>
Juvenile Pacific pink salmon (Oncorhynchus gorbuscha) were captured by beach seine in two adjacent channels leading from headwaters to coastal marine areas in 2004 and examined for sea lice. The sample sites represented the key areas of potential wild/farmed interaction by sea lice (Lepeophtheirus salmonis and Caligus clemensi) in the Finlayson and Mathieson Channels. The mean prevalence of infestation was 18.4% with a mean density of 0.28–0.64liceg-1. The ratio of L. salmonis life stages was 26%:35%:39% for copepodid/chalimusre-adult:adult life stages respectively. There was no significant effect of sample site on sea lice prevalence. There was a significant increase in sea...</br>

11th August 2010 12:14

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