Fishery managers from Oregon and Washington have set spring Chinook salmon seasons for the Columbia River.  The lower Columbia River recreational spring Chinook season will take place from Thursday, March 1 through Saturday, April 7 from Buoy 10 upstream to Beacon Rock, plus bank angling from Beacon Rock upstream to the Bonneville Dam deadline.  Above Bonneville Dam, the recreational Chinook season was set for Friday, March 16 through Monday, May 7, with the open area extending from Bonneville Dam upstream to the Oregon and Washington border above McNary Dam.  Only bank angling is allowed from Bonneville Dam upstream to the Tower Island powerlines.  The Oregon Department of Fish and Wildlife has set regulations for the spring Chinook fisheries on the Deschutes and Hood rivers, with both set to open on April 15.  Last year, there was no season on the Deschutes due to poor returns of both hatchery and wild fish.  This year, fish managers are predicting as many as 7,600 hatchery fish will return to the Deschutes, which is substantially larger than last year.  But with numbers of wild fish returning predicted to remain extremely low, a reduced bag limit and conservative regulations will be in place to protect their numbers.