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Great Basin Redband Trout

In 2005 ODFW reviewed the status of all redband trout populations in the Oregon
portion of the Great Basin. Authors of the
Native Fish
Status Review identified numerous data gaps that prevented
a thorough review of population status and trend. In many cases the assessment was based on one
year of data or speculation.
Prompted by the need for a consistent and continuous dataset The Native Fish Investigations Project
is initiating a 6-year pilot study to assess population status of redband trout. Using a sample
design developed by EPA's
Environmental Monitoring and Assessment Program redband trout abundance
in all 6 interior basins will be assessed every year, starting the summer of 2007. In addition all populations will be
assessed twice (at 3-year intervals) during the course of the study. The results of the study will
allow ODFW to:
- Thoroughly assess population status and trend;
- Provide appropriate management to ensure future fishing opportunities;
- Write effective conservation plans; and
- Assess response of fish populations to changes in climatic conditions.
Annual Results:
2007 Summary
Relevant Information:
Project Overview (PowerPoint
presentation)
ODFW Oregon Native Fish Status Report (2005)
Dambacher, J.M., K.K. Jones and H.W. Li. 2001.
The distribution and abundance of Great Basin redband trout:
an application of variable probability sampling in a 1999 status review. Oregon Department of Fish and Wildlife,
Information Reports 2001-08, Portland.
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