Pioneering Fish Passage
Pioneering Fish Passage
Bonneville Dam, Columbia River
CRRL has a history of researching the effectiveness of different types of structures on fish passage e.g., tidal flood gates, irrigation out takes, culverts, low and high head dams on tributary as well as mainstem settings. Achieving effective passage requires an alignment of physical attributes (hydrology/engineering design) and biological attributes (behavioral response/ swimming capacity).
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CRRL Lead Scientists and Areas of Expertise
Lead Scientists - Expertise
Early Detection Monitoring May Not Be Sufficient for Invasive Mussels in the Columbia River Basin
The ecological and economic costs of an invasive quagga or zebra mussel infestation in the Pacific Northwest of the U.S. would be significant. The development of invasive mussel monitoring programs in the Pacific Northwest provides a unique opportunity to evaluate a regional invasive species detection effort early in its development. Although efforts are underway to monitor for the presence of...
Salmonid Population and Life History Research in Tributary Stream and River Habitats and Response to Dam Removal
Juvenile anadromous salmonids all spend some portion of their lives in freshwater. This time may vary from days to years depending upon species and run. Spring Chinook Salmon and Coho salmon generally spend one year in freshwater and Steelhead may spend up to five years in freshwater prior to beginning their journey to sea. Several projects at WFRC – CRRL are investigating populations, life...
Scientific Support of Salmon and Steelhead Reintroductions in Impounded River Basins of the Pacific Northwest
Salmon and steelhead populations in the Pacific Northwest were severely affected by hydropower development that occurred during the first half of the 20th century. Impassable dams were constructed on many rivers throughout the region which prevented returning adult salmonids from accessing important habitats where spawning and rearing historically occurred. In the past two decades resource...
An Annotated Bibliography for Lamprey Habitat in the White Salmon River, Washington
Tribal Relations An Annotated Bibliography for Lamprey Habitat in the White Salmon River, Washington
Steelhead Life History Study in White Creek on the Yakama Nation Reservation
Fishery biologists from the U.S. Geological Survey have teamed with fishery biologists from the Yakama Nation to conduct a life history study of the juvenile steelhead using small electronic tags.
Rock Creek Fish Population and Life History Assessment (Washington)
The research conducted by the U.S. Geological Survey, in coordination with the Yakama Nation, is designed to determine stream habitat conditions, fish abundance, and fish life history characteristics such as movement, growth, and distribution.
Steelhead and Spring Chinook Adult Spawning Migration Study in the Klickitat River (Washington)
Fishery biologists from the U.S. Geological Survey are cooperating with Yakama Nation fishery biologists and technicians to conduct a migration behavior study of returning adult steelhead and spring Chinook using radio telemetry.