Recreational fishermen will get another two days to go after spring Chinook salmon in the Columbia River above Bonneville Dam under rules adopted by Oregon and Washington fishery managers.  The season will take place this Saturday and Sunday.  The open area is from the Tower Island power lines about 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.  The bag limit is two adult Chinook or steelhead of which no more than one may be a Chinook.  Only hatchery fish may be kept.  The season was approved after fishery managers reviewed recent data that showed harvest and effort during the original fishing period was lower than expected due to late passage timing and poor conditions, leaving additional fishing opportunity under the allowable harvest guideline.  No additional spring season re-openings were adopted for the lower Columbia River downstream of Bonneville Dam.