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2007 summer/fall fish passage totals - 16 July through 31 December
Updated: 09 January 08
17,708 Sockeye (including 982 adipose clip)
454 Chinook (including 184 adipose clip)
70 Steelhead (including 58 adipose clip)
Yearly fish passage data from Wells Dam as of 27 December 2007:
Sockeye - 22,273
Chinook - 16,918
Steelhead - 7,500
A complete breakdown of daily passage counts at Zosel Dam, and other Columbia River-system fish-counting locations, can be viewed on the Columbia River DART website.
Zosel Dam is located at River Mile 79.0 on the Okanogan River. Travel time from the mouth of the Okanogan River to Zosel Dam is an estimated two to three days.
Data collection efforts on the population and distribution of the elusive Ogopogo are ongoing. However, no individuals from any size class have been enumerated in the current sampling season.
Send data inquires to:
This project was initiated by the Okanogan Basin Monitoring & Evaluation Program (OBMEP) in 2005 as part of a basin-wide monitoring program.
The primary objective is to capture fish passage events at Zosel Dam 24 hours a day, 7 days a week and 365 days a year for estimating salmonid populations in the Okanogan River basin.
Detailed descriptions of, and results from, the Zosel Dam video counting system can be found within these documents:
2006 Zosel Dam Adult Enumeration Report
Fish Enumeration Using Underwater Video Imagery
The system was fully operational in February, 2006. The system includes two, custom-made fish-passage chutes, fluorescent lighting and a state-of-the-art, motion-detection and time-lapse Digital Video Recorder (DVR).
