Water Stewardship Information Sources

ID 59
Citation Arterburn, J, Kistler, K and Fisher, C. 2007. Anadromous Fish Passage Barriers in the Okanogan Basin. Prepared for Colville Tribes Department of Fish and Wildlife.
Organization Colville Confederated Tribes
URL http://colville.whydevelop.com/media/files/Barriers%20to%20anadromous%20fish%20in%20the%20Okanogan%20River.pdf
Abstract/Description or Keywords The Okanogan River Basin is large, spanning over 8,000 square miles and is located
within north central Washington State and south central British Columbia (Figure 1).
Tributary habitat for anadromous salmonids was historically limited because of the
geographic features of the Okanogan river valley. Anthropogenic changes such as
irrigation diversion and road culverts have further reduced the amount of tributary
habitats accessible to anadromous fish for both spawning and rearing. Basic information
on both historic and current habitats accessible to anadromous salmonids can be
determined relatively easily by experienced biologists. For most streams the terminus for
anadromous fish is defined by a substantial geomorphic or man-made feature such as
falls, dams, culverts, gradients, diversions, etc... Little information exists for several
streams most importantly in reaches accessible by anadromous salmonids. In an effort to
evaluate current habitat conditions of tributaries of the Okanogan River Basin as
associated with the anadromous salmonids, primarily summer steelhead, surveys were
conducted in Antoine Creek, Ninemile Creek, Loup Loup Creek, Tonasket Creek,
Bonaparte Creek, Wanacut Creek, Whistler Canyon Creek and Wildhorse Spring Creek
in the United States (Figure 2) and along major tributaries in Canada. These surveys
provide important information that can be utilized by agencies, managers, planning
group, tribes, and the public. Factors that are limiting summer steelhead production will
help address recovery needs for the entire upper Columbia ESU that has been listed as
endangered since 1997. This document is organized in an upstream direction with
information from Chiliwist Creek first and streams in Canada last.
Information Type report
Regional Watershed Okanagan, Similkameen
Sub-watershed if known Inkaneep Creek, Vaseux Creek, Park Rill Creek
Aquifer #
Comments primarily US streams
Project status complete
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