Water Stewardship Information Sources

ID 1894
Citation Walsh, M and Long, K. 2006. Okanagan Basin Monitoring and Evaluation Program (OBMEP), 2005 Annual Report for Sites in Canada. Okanagan Nation Alliance.
Organization ONA Fisheries
URL http://www.colvilletribes.com/media/files/Canada%20OBMEP%202005%20Habitat%20Report.pdf
Abstract/Description or Keywords The purpose of the Okanagan Basin Monitoring and Evaluation Program (OBMEP) is to
monitor over 20 years the status and trends of components such as physical habitat
condition, water quality and quantity, and juvenile and adult fish production in the
Okanagan sub basin (CCTFWD 2005). The Colville Confederated Tribes (CCT) initiated
the OBMEP program in 20041. In 2005, the CCT coordinated with the Okanagan Nation
Alliance (ONA) to begin collecting data in the Canadian Okanagan sub basin.
The OBMEP study structure and methods were adapted from the Monitoring Strategy for
the Upper Columbia Basin (Hillman 2004). Monitoring the status and trends of fish and
their habitat involves,
- Documenting existing conditions i.e. current status of populations and/or
environmental conditions and,
- Quantifying changes over time i.e. is there a statistically significant difference
over time in abundance, survival, timing, and life history characteristics of
summer/fall, spring chinook, sockeye and steelhead or a statistically
significant difference over time in the selected physical habitat parameters
and characteristics?
Status and trend data will,
- Help identify issues that require further experimental research to understand
cause and effect relationships,
- Aid in effectiveness monitoring of management actions performed on streams
i.e. did the stream restoration project result in a change in abundance of
juvenile salmon?
Thus OBMEP will help to guide restoration and adaptive management with the long-term
collection of data.
The Canadian Okanagan sub basin study area was determined based on the current
presence of anadromous salmon species, which traditionally occupied the entire
Okanagan valley (Ernst 2000). Dams exist at the outlet of all main stem lakes in the
Okanagan basin including Okanagan, Skaha, Vaseux and Osoyoos lakes. The Vaseux
Lake Outlet Dam, herein referred to as McIntyre dam, is considered the upper migration
limit for chinook (O. tshawytscha), steelhead (O. mykiss) and sockeye (O. nerka)
salmon. Two other dams - the Skaha Lake Outlet Dam and the Okanagan Lake Outlet
Dam - exist further upstream on the Okanagan River. With the experimental reintroduction
of sockeye salmon into Skaha Lake2
their range has been extended to
below the Okanagan Lake Outlet Dam in Penticton, BC. Therefore, under the mandate of OBMEP, the study area in Canada extends from the Okanagan Lake Outlet Dam,
south to the US border (Fig.
Information Type report
Regional Watershed Okanagan
Sub-watershed if known
Aquifer #
Comments
Project status complete
Contact Name Karilyn Alex
Contact Email [email protected]