A three-day fishing season for tribal gill netters opened Thursday morning and will end at 6 p.m. Saturday.

The Columbia River Compact of Oregon and Washington, which regulates mainstem commercial fisheries, agreed April 23 to allow four Columbia River Basin treaty tribes (Yakama, Warm Springs, Umatilla and Nez Perce) to open commercial sales of spring chinook, coho, steelhead, walleye, carp and shad.