image description
Sample Design: Graham Creek Westslope Cutthroat Trout Assessment
  • ID: 16996
  • State: Finalized
  • Owner: Nick Bean
  • Collaborator(s): None
  • Spatial Design Category: Simple Random Sample, Stratified
  • Sites in Design: 3
  • Has Location Privacy: No
  • Data Repository: Kalispel GEDMS
  • Version History: v1.0 Finalized (1/18/2024)

The details of this Sample Design, including all the parameters used to generate it, are included below. Sample designs must belong to a Study Plan.


There are two components of this Sample Design: 1) abundance assessment, 2) spatial distribution (extent)

Within the stream being assessed, the habitat has been delineated into approximately 1 km reaches (stratum). Within each reach there are approximately 10-100m Sampling Units (sites). All reaches will be selected for the assessment, with a random (drawn) selection of 1-2 100m sites per reach.  Abundance assessments of the Westslope Cutthroat Trout population will be conducted within each selected project site. Prior to conducting the assessments, each site will be evaluated in the field to ensure it contains representative habitat; if not, an alternative randomly sampled site will be chosen If no fish are observed in a selected site, a secondary site within the reach will be assessed.

For the secondary component, single-pass electrofishing will be conducted in a non-random fashion within each reach to determine the spatial extent of the population; this is a simple presence/absence survey to define total extent (i.e., upstream, downstream).

The assessments will be conducted in a single event (one time) over the course of a two-week period (August-September timeframe) to ensure equal distribution of the population and limited movement.

Start Year


End Year


Study Plan

Kalispel Tribe Evaluation of Recovered Westslope Cutthroat Trout Populations in Graham Creek and West Branch LeClerc Creek Tributary 1 v1.0

Data Repositories





Area of Inference

Latitude, Longitude: 48.303767,-117.418659
Latitude, Longitude: 48.305227,-117.432919
Latitude, Longitude: 48.309647,-117.443616

AOI Notes

The project sites are located above an installed Fish Management Structure built in 2007. The resident fish population above this location is isolated.

Sample Sites
These are the unique sites that are participating in this sample design over the time period covered by the design.

Map of Sites


Sampling Schedule
This section describes which sites are scheduled to be sampled in any given year, and (if applicable) the panel and stratum that the sample site belongs to.

Plan Description

Each of the three reaches defined in the sample have unique characteristics and understand the fish population is each is important. Reach 1 is the lowest reach above the installed Fish Management Structure, where the non-native fish (i.e., Brook Trout) were mechanically removed, allowing native Westslope Cutthroat Trout to naturally reoccupy the habitat from the upstream population; Reach two is predominantly above the non-native fish management reach and a natural barrier that exists just below the road crossing, so this segment will include fish that may be isolated from the lower Reach 1; Reach 3 exists in what is likely at or close to the upper extent of Westslope Cutthroat Trout distribution in Graham Creek and densities are expected to be low.

End User License Agreement

All visitors to may read content without creating a user account. To add content and participate in collaboration features, users must create an account. Account holders must provide their name and email address, which will be viewable by anyone visiting the site.

Privacy Act Statement


Relevant acts include the Organic Act, 43 U.S.C. 31 et seq., 1879; Fish and Wildlife Coordination Act, 1934; Fish and Wildlife Act, 1956; Migratory Bird Treaty Act, 1918; Migratory Bird Conservation Act, 1900; Federal Land Policy and Management Act, 1976; Fish and Wildlife Improvement Act, 1978; Endangered Species Act, 1973; Marine Mammal Protection Act, 1972; Great Lakes Fishery Act, 1956; Nonindigenous Aquatic Nuisance Prevention and Control Act, 1990; Water Resources Development Act, 1990; and other authorizations conveyed to the U.S. Geological Survey.

Principal Purpose provides a structured system to document, store, manage and share methods, protocols, sample designs, study plans and sample locations related to natural resource monitoring and research.

Routine Uses

Used to document and share the who, what, where, when and how of natural resources monitoring and research. Users who wish to provide content, edit content and use the collaboration features of the site must create an account. Account holders must provide their name and email address, which will be viewable by anyone visiting the site. staff may use email addresses to periodically communicate development updates, bug fixes and content to participants and to assist with completion of content, if needed. The Community feature of supports User Profiles, which allows all site visitors to view name, email and each users’ content. Name and email of participants entering information is published via application programing interfaces (API) and shared with Sitka Technology Group (vendor contracted for site development).

For all site visitors, the following information is collected:

  • The name of the domain from which you entered our website (for example, "")
  • IP Address (an IP address is a number that is automatically assigned to your computer whenever you are connected to the web)
  • The type of browser and operating system used to access our website
  • The date and time you access our website
  • The pages within our website that you visit
  • If you linked to our website from another website, the address of the website
  • This website uses session cookies. They provide enhanced navigation through the website.

We use this information to measure the number of visitors to the different sections of our website and to help make our website more useful to visitors. We do not track or record information about individuals and their visits. This information is not shared with anyone beyond the support staff for this website, except when required by Law Enforcement investigation. This information is not sold for commercial marketing purposes.

Disclosure is Voluntary

If the individual does not furnish the information requested, there will be no adverse consequences. However, if you do not provide your first and last name and email address you will not be able to enter content into

Paperwork Reduction Act Statement

The Paperwork Reduction Act of 1995 (44 U.S.C 3501 et.seq.) requires us to inform you that the information is being collected to supplement natural resource monitoring metadata, to promote publicly accessible documentation of monitoring projects, and support coordination and integration of monitoring efforts. Use of the tools is voluntary. Use of this website is estimated to be about 1 hour per response. A Federal agency may not conduct or sponsor, and a person is not required to respond to a collection of information unless it displays a currently valid OMB control number. Comments regarding this collection of information should be directed to: Bureau Clearance officer, U.S. Geological Survey, . OMB Control Number 1090-0011 Expires 10/31/2021.