PSMFC Homepage


Add Your Data Set

Use our Data Publishing Service to add your data set to the Data Store.

The StreamNet Data Store is a searchable archive of data sets related to fish and other aquatic resources that are not of the specific data types included in the main StreamNet database. These data sets come from many different sources and are provided for download in their original formats. To add your own data set to the Data Store, use our Data Publishing Service.

StreamNet did not participate in creation of most of these data sets, and we are not able to answer questions about those we did not help develop. For questions about the data sets available from this page, please contact the originator of the particular data set.

To search the Data Store, enter key words, project numbers, species, methods, etc. into the search box below and click "Search".

File Size: 420 MB

Download this data set here:
HTTP url:

Westslope cutthroat trout 2009 status assessment (Contains May et al. (2009) report, supporting data, and GIS files)

Data Categories Generalized Fish Distribution
Historical distribution
Current distribution
Dates of Data 2009 TO 2009
Data Set Status Complete
Data Set Update Schedule Approximately every 5 years.
Date Data Set Published on StreamNet Data Store 2/5/2010
Project Name & Number
Purpose of Data Set Purpose provided in Abstract
Summary / Abstract This abbreviated status update for westslope cutthroat trout (Oncorhynchus clarkii lewisi, WCT ) relies primarily on information contained in a 2009 update of the WCT status database. This report is presented as a summary of information primarily obtained during nine (9) workshops held between January and March, 2009. Biologists and ArcGIS technical experts from several state, federal, and Tribal agencies along with representatives of private companies combined their collective knowledge and skills in the effort. The 2009 database update for WCT expands the information originally developed in 2002.

The database is managed and maintained as a component of the WCT interagency conservation working group's program for conservation of WCT. Coordination leadership for the WCT conservation effort and more specifically for management of the database is currently provided by Idaho Department of Fish and Game. This summary report relies heavily upon a number of database queries that were provided by Idaho Fish and Game.

This summary updates previous WCT status assessments by using an updated version of the 2002 protocol which allowed for an expansion of information contained in the database. The informational components of the updated protocol included a further refinement of historically occupied range, a review and adjustment of the current distribution that included additional characterizations, and identification of 'conservation populations' within the current distribution. The assessment of restoration and expansion possibilities for WCT within the context of the historical range was not completed. To the extent possible comparisons between the 2002 and 2009 reporting periods will be presented. A detailed range-wide status report (Shepard et al. 2003) and a scientific publication (Shepard et al. 2005) were developed from information contained in the 2002 WCT database. It is recommended that additional publications be prepared using the 2009 information.
Broad Biological Groups Fishes
Taxa Westslope Cutthroat Trout, Oncorhynchus clarkii lewisi
Location Montana, Idaho, Wyoming, Washington, Oregon
NPCC Subbasins (2001 Subbasins) Outside the Columbia basin: Outside Columbia Basin
Blue Mountain: Asotin
Blue Mountain: Grande Ronde
Blue Mountain: Imnaha
Blue Mountain: Snake Hells Canyon
Columbia Cascade: Lake Chelan
Columbia Cascade: Methow
Columbia Plateau: John Day
Columbia Plateau: Palouse
Columbia Plateau: Snake lower
Intermountain: Coeur d'Alene
Intermountain: Pend Oreille
Intermountain: Spokane
Middle Snake: Snake lower middle
Mountain Columbia: Bitterroot
Mountain Columbia: Blackfoot
Mountain Columbia: Clark Fork
Mountain Columbia: Flathead
Mountain Columbia: Kootenai
Mountain Snake: Clearwater
Mountain Snake: Salmon
Keywords Oncorhynchus clarkii lewisi genetics introgression miles historical distribution barriers risks land management impacts range
Lead Person and Organization That Created the Data Set Evan Brown
Other Participating Organizations Montana Fish, Wildlife & Parks (MFWP)
Montana Cooperative Fishery Research Unit
USDA Forest Service (USFS)
Idaho Department of Fish and Game (IDFG)
Oregon Department of Fish and Wildlife (ODFW)
Washington Department of Fish and Wildlife (WDFW)
Contact Person for Questions About the Data Name:  Evan Brown
Position:  Fisheries Database Manager
Organization:  Idaho Department of Fish and Game
Address:  P.O. Box 25 600 S. Walnut St.
Boise, ID  83707
Phone:  208-287-2721
email:  Send a note to addressed for evan.brown.
Broad Category of Methods Field
Data Collection Methods Various. Original field data were collected using various methods. Data in this data set were compiled from available data.
File Formats Adobe Acrobat (.pdf)
Hypertext markup language (.html)
Microsoft Access 2003 (.mdb)
Shape file (.shp, .shx, .dbf)
Microsoft Word 2003 (.doc)
Data structure description See data set files
URL where updated data may be available
Some data sets are intrinsically linked to software, tools, models, or statistical procedures, and must be used in association in order to be of value. If this applies to this data set then the following information will apply:
Relationship between the data set and the software, model, etc.
Where the software, tools, models, etc. can be obtained if they are not included with the data download.
Contact person for questions about the software, tools, models, etc. Name:  

Papers, reports, and presentations that were done under this project. Westslope Cutthroat Trout Status Update Summary 2009. Bruce E. May
Restrictions or legal prerequisites for accessing and using this data set. No

File Size: 420 MB