Habitat conditions in each life stage and in tributary streams, the Columbia River, and the ocean, profoundly affect upper Columbia salmon and steelhead populations. Although habitat in most upper Columbia subbasins is good, especially in headwater streams, humans have damaged habitat near valley bottoms. The Upper Columbia Salmon Recovery Board works with partners inside and outside the region to align priorities and implement the region’s recovery plan.
Accomplishments include the following:
LARGE WOOD (VOLUME) – CLICK >> TO OPEN LEGEND
Most streams monitored by the Department of Ecology are found to have low amounts of wood when compared to relatively natural conditions.
More monitoring is necessary to determine any trends for this data in this region.
Increased sediment entering local streams impacts salmon and trout
Stream monitoring by the Department of Ecology shows that there is too much sediment in the streams included in the study. Excess sediment harms fish in the salmon family by smothering fish eggs, changing the shape and route of the stream, and reducing the stream’s capacity to hold floodwater or provide cover for fish. More monitoring is necessary to determine any trends for this data in this region. More than 18.5 percent sediment is considered too much for salmon and trout.
COPPER IN STREAM SEDIMENTS – CLICK >> TO OPEN LEGEND
Copper levels in the streams monitored by the Department of Ecology in this region appear to be fairly low, which is good for fish in the salmon family.
The region appears to have little human disturbance in the riparian areas studied.
More monitoring is necessary in this region to determine any trends for this data.