Saturday will be the last day of white sturgeon retention fishing in the Bonneville Pool of the Columbia River, from Bonneville Dam to The Dalles Dam and adjacent tributaries.  Fishery managers from Washington and Oregon expect effort to be high for the next few days due to good weather.  Catch rates indicate the harvest guideline of 675 sturgeon will be reached this weekend, marking the second consecutive year that Bonneville Pool recreational sturgeon retention will close in January.  Fishery managers extended the sturgeon retention season for an additional 14 days in The Dalles Pool, from The Dalles Dam to John Day Dam, with the season open three days per week on Mondays, Wednesdays and Saturdays from January 29 through February 28 or until the allowable catch of 190 sturgeon is reached.  Sturgeon retention remains open per permanent regulations in the John Day Pool, from John Day Dam upstream to McNary Dam, for seven days per week until the guideline is met.  Catch rates are currently low in the John Day Pool so no management action is needed at this time.