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Repository: Spawning Ground Survey Database (SGS)
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Spawning Ground Survey Database (SGS)


The Spawning Ground Survey database (SGS) was designed as a repository for raw, unexpanded data collected during spawning ground surveys and from adult traps. It is intended to provide a common framework for the collection, storage, retrieval, and dissemination of data collected by public and private entities. WDFW maintains a centralized copy of the database, which contains historic and current spawning ground survey data from throughout Washington.

The overall objective of SGS is to help monitor status and trends of Coastal, Puget Sound, and Columbia Basin salmonid stocks. SGS is built from a series of seasonal, systematic surveys of both index and “random” stream sections for evidence of adult salmonid spawning activity. Counts of adult fish and redds (nests) are recorded, which provide some of the raw material for generating spawning escapement estimates by species and stock. Escapement estimates are a major component of our assessment of the status (health) of each stock. Questions associated with run timing and distribution of stocks may be answered by analyzing the temporal and spatial data in SGS. These estimates can be found in the Salmonid Stock Inventory (SaSI).


To request SGS data, please use the form on the web page. You can use the menus to specify the watersheds (WRIA), list of species and time-span of data needed, or alternately, include a detailed request to the data manager. To limit the amount of data you receive to a manageable size, it is helpful to be as specific as possible in your request. Data can be obtained for specific streams or rivers rather than entire watersheds.

Centralization of SGS data is an ongoing effort. As such, the SGS database is not all-inclusive and may not contain all SGS data that has been compiled for an area of interest. If data appears to be missing please contact the nearest WDFW regional Fish Program office for assistance, or the Fish District Biologists.







The following items are associated with this Environmental Information Repository.

Who’s Using this Repository?

Sample Designs



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, "")
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  • 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
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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.