With the translocation and release of 90 fishers [Pekania pennanti (formerly Martes pennanti)] from British Columbia to Olympic National Park during 2008-2010, the National Park Service and Washington Department of Fish and Wildlife accomplished the first phase of fisher restoration in Washington State. Beginning in 2013, we initiated a new research project to determine the current status of fishers on Washington’s Olympic Peninsula 3-5 years after the releases and evaluate the short-term success of the restoration program. Objectives of the study are to determine the current distribution of fishers and proportion of the recovery area that is currently occupied by fishers, determine several genetic characteristics of the reintroduced population, and determine reproductive success of the founding animals through genetic studies.

Happe, Patricia J.; Jenkins, Kurt J.; Schwartz, Michael K.; Lewis, Jeffrey C.; Aubry, Keith B. 2014. Evaluation of fisher restoration in Olympic National Park and the Olympic Recovery Area: 2013 Annual Progress Report. Administrative Report. Reston VA: US Geological Survey. 41 p.