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Montana Ecological Services Field Office

585 Shepard Way, Suite 1 • Helena, Montana 59601 • 406-449-5225 • (FAX) 406-449-5339

 

 

Fisheries Applied Research and Technical Assistance

 

Helena Field Office

 

Population genetics of Arctic grayling in Montana

The US Fish and Wildlife Service is currently working to update the information on the population genetics of Arctic grayling in the upper Missouri River system in Montana and Wyoming.  The project is divided into two components.   For the first component, our general objective was to use microsatellite DNA markers to more clearly characterize ancestral relationships, genetic differentiation, and genetic diversity within and among native and naturalized Arctic grayling populations in Montana and Wyoming.

The first component of this project was completed in fall 2008 and a manuscript based on this project is currently “In Press”.

Peterson, D.P. and W.R. Ardren.  2009.  Ancestry, population structure, and conservation genetics of Arctic grayling (Thymallus arcticus) in the upper Missouri River, USA.  Canadian Journal of Fisheries and Aquatic Sciences 66:1759-1774 (download pdf)

Arctic grayling from Bobcat Lake, Montana

Arctic grayling from Bobcat Lake, Montana

The second component focuses on the Arctic grayling population in the Big Hole River, Montana.   The objectives are to characterize the genetic diversity, effective population size, and population structure of Arctic grayling in the Big Hole River based on individuals collected during three different time periods (1980s, 1990s, and 2000s) using microsatellite DNA markers.  This analysis is being conducted by Dr. William Ardren, US Fish and Wildlife Service, Western New England Complex, Essex Junction, Vermont.  The estimated project completion date is December 2009.

USFWS and USFS staff and volunteers collecting finclips for genetic analysis from Arctic grayling in Odell Creek, Montana

USFWS and USFS staff and volunteers collecting finclips for genetic analysis from Arctic grayling in Odell Creek, Montana.

Funding:  Region 6 US Fish and Wildlife Service; Montana Fish, Wildlife and Parks; US Bureau of Reclamation

Collaborators:  Dr. Bill Ardren (Abernathy Fish Technology Center – US Fish and Wildlife Service, Western New England Complex – US Fish and Wildlife Service); Dr. Doug Peterson (US Fish and Wildlife Service), Montana Fish, Wildlife and Parks; and US Forest Service

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Updated 11/2/09