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Double-crested cormorant.
-Photo: Dan Roby Lab, OSU - |
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Double-crested cormorant colony
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Photo: Dan Roby Lab, OSU - |
Avian Predation Program 2012 Final Report (pdf)
Juvenile salmon and steelhead are consumed by fish-eating birds in estuaries along the Oregon Coast and in the lower Columbia River during their migration to sea. A number of threatened and sensitive fish are affected, including coastal coho, chinook, steelhead and chum.
While a variety of bird species prey on juvenile salmon and steelhead the birds of primary concern to fishery managers, scientists, anglers and other conservationists are double-crested cormorants and Caspian terns.
To learn more about how ODFW and partners are trying to find a balance between protecting salmon populations and conserving birds, read the Avian Predation Backgrounder (pdf).
For more information, visit Bird Research Northwest (A partnership between Oregon State University, Real Time Research and the USGS, Oregon Cooperative Fish and Wildlife Research Unit) |