Working with Nature’s Engineers to Build Coho Salmon Habitat

NOAA Fisheries –

To construct the beaver dam analog, a row of wooden posts is anchored upright in the stream bed.

Once we introduce the analogs to ideal areas, beavers find them and build out the rest of their new homes. Rows of wooden posts intertwined with tree branches and straw give our furry restoration partners a solid foundation from which to start building their dams. We also ensure they have plenty of food sources by planting willows and other tasty foods beavers like while removing invasive plants from the areas.

These innovative but simple projects are turning back the clock to times where beavers freely built dams along streams and rivers in Oregon watersheds. Modern development has straightened stream channels and increased the amount and speed of water flow. This makes it hard for juvenile salmon to rest during freshwater stages of their early lives. This habitat loss for beavers and salmon has created population declines for both species.

These pilots are one piece of a larger effort, the Oregon Coast Coho Recovery Plan, to restore Oregon Coast coho salmon habitat. We are providing funding and technical support to the Wild Salmon Center to implement a series of habitat restoration projects across the Oregon Coast.

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