Following another run upgrade, Oregon and Washington fishery managers adopted an additional fishing opportunity for spring Chinook salmon in the mainstem Columbia River from the Tongue Point/Rocky Point line to the Oregon/Washington state line upstream of McNary Dam and increased the bag limit for Chinook to up to two adults per day beginning on Saturday.  The forecast for adult Chinook was recently upgraded to 192,900 adults at the Columbia River mouth compared to the pre-season forecast of 122,900 adults and up from 180,000 forecast in mid-May.  Below Bonneville Dam beginning Saturday, the daily bag limit increases to include up to two adult hatchery Chinook and the boat angling deadline expands to the permanent boat angling boundary below Bonneville Dam, with the season running through June 15.  Above Bonneville Dam, the season will also run through June 15, with the open area from the Tower Island power lines approximately six miles below The Dalles Dam upstream to the Oregon/Washington border, plus the Oregon and Washington banks between Bonneville Dam and the Tower Island power lines.