Monitoring for sea lice on wild salmon in western and eastern Canada / Stewart Johnson and Simon Jones. : Fs70-5/2014-060E-PDF

Well-designed and executed, systematic surveillance programs are necessary to obtain sea lice infection data from wild fish populations. These data are necessary to inform decision makers with respect to the occurrence of sea lice parasitism within the wild population and the extent of bi-directional interactions of sea lice between the wild and farmed populations. This section builds upon the peer-reviewed “Protocols and Guidelines for the study of interactions between salmonids and sea lice” that were developed by the BC Salmon Forum in 2006 (Appendix 1). Various methods that are available for use in sea lice survey work are reviewed and an indication of their advantages and disadvantages is provided. As well, aspects of the biology of sea lice, salmon and non-salmonid hosts and the environmental factors that need to be considered when planning sea lice surveys are also reviewed.

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