Monitoring Information

JUVENILES: Since 2012, rotary screw or fence panel traps have been used to monitor the abundance and distribution of juvenile Chum Salmon in Lower Columbia River tributaries. Traps nave been operated in four Lower Columbia River Chum Salmon populations. Click to see locations.
Adults: From 2016-2019, an adult fish trap was operated on Stewart Creek in the Clatskanie River population to evaluate Chum Salmon fry survival from adult outplanting efforts in the creek from 2013-2015. Additionally, spawning surveys have been conducted each fall since 2012 to monitor the distribution and abundance of adult Chum Salmon returning to the Lower Columbia River. Click to learn more.