Thursday will be the last day to retain sturgeon in the John Day Pool of the mainstem Columbia River, from John Day Dam upstream to McNary Dam and adjacent tributaries. Fishery managers from Washington and Oregon made the decision Wednesday after determining that harvest guidelines in this reach will be met soon. The projected kept catch in John Day Pool through March 14 is 99 fish, which is 94 percent of the guideline. Sturgeon anglers should also be aware that a retention season is not planned this year in the lower river below Bonneville Dam, as surveys found low numbers of legal-size fish. Catch-and-release sturgeon fishing remains open in the mainstem, except all angling for sturgeon is prohibited from May 1 to August 31 within sanctuary areas below each of the dam tailraces.