TY - JOUR AU - Jimenez, Daniel F. AU - Revie, Crawford W. AU - Hardy, Simon P. AU - Jansen, Peder A. AU - Gettinby, George PY - 2013 DA - 2013/12/20 TI - Multivariate evaluation of the effectiveness of treatment efficacy of cypermethrin against sea lice (Lepeophtheirus salmonis) in Atlantic salmon (Salmo salar) JO - BMC Veterinary Research SP - 258 VL - 9 IS - 1 AB - The sea louse Lepeophtheirus salmonis is the most important ectoparasite of farmed Atlantic salmon (Salmo salar) in Norwegian aquaculture. Control of sea lice is primarily dependent on the use of delousing chemotherapeutants, which are both expensive and toxic to other wildlife. The method most commonly used for monitoring treatment effectiveness relies on measuring the percentage reduction in the mobile stages of Lepeophtheirus salmonis only. However, this does not account for changes in the other sea lice stages and may result in misleading or incomplete interpretation regarding the effectiveness of treatment. With the aim of improving the evaluation of delousing treatments, we explored multivariate analyses of bath treatments using the topical pyrethroid, cypermethrin, in salmon pens at five Norwegian production sites. SN - 1746-6148 UR - https://doi.org/10.1186/1746-6148-9-258 DO - 10.1186/1746-6148-9-258 ID - Jimenez2013 ER -