Montana Fishery Project
Use of Mobile Electrofishing to Induce Mortality in Lake Trout Embryos
July 2011 - June 2014
- Montana Fish Wildlife and Parks
The aim of this study is to evaluate the efficacy of using benthic-oriented, mobile electrofishing techniques to induce mortality in lake trout embryos in a lake environment. This will be achieved during a three year study beginning with simple field-based experiments and culminating with an evaluation of electroshock induced mortality of embryos at a large spatial scale within Swan Lake. This study will be performed in situ in order to develop techniques under environmental conditions similar to those that would be experienced by resource managers engaged in lake trout eradication programs. Additionally, high-density lake trout spawning areas are known for Swan Lake, making it an ideal candidate for project implementation (i.e., in situ lake trout embryo destruction).