Fishery managers from Oregon and Washington have adopted revised spring Chinook salmon and steelhead seasons for the Columbia River.  In the Columbia upstream of Bonneville Dam, the recreational Chinook season will be open from Wednesday, April 1 through Tuesday, May 5.  The open area for both boat and bank anglers is from the Tower Island power lines approximately six miles below The Dalles Dam upstream to the Oregon/Washington border (upstream of McNary Dam).  From the Tower Island power lines downstream to Bonneville Dam, only bank angling is allowed.  In the Columbia below Bonneville Dam, the modified recreational spring Chinook season will take place from Sunday, March 1 through Tuesday, March 31, then continue three days a week – on Thursdays, Fridays, and Saturdays – from April 2 until the pre-season harvest guideline of 2,899 adult upriver Chinook mortalities is achieved.  The season-setting process was influenced this year by a lower than average forecast for upriver-origin spring Chinook of 81,700 fish and poor expected returns to the Cowlitz and Lewis rivers that are fewer than needed to meet minimum hatchery brood stock needs.