Threatened and Endangered Species
Threatened and Endangered Species
Filter Total Items: 21
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...
Columbia River Basin Sturgeon Habitat Modeling
A study was conducted to identify habitat characteristics associated with age 0 White Sturgeon ( Acipenser transmontanus Richardson, 1863) recruitment in three reaches of the Columbia River Basin: Skamania reach (consistent recruitment), John Day reach (intermittent/inconsistent recruitment), and Kootenai reach (no recruitment).
Cutthroat Trout (Oncorhynchus clarkii)
Species Studied - Cutthroat trout ( Oncorhynchus clarkii )
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...
Tribal Collaboration - KFFS
Factors limiting survival of juvenile endangered suckers.
Shortnose Sucker (Chasmistes brevirostris) - KFFS
Species Studied - Shortnose Sucker ( Chasmistes brevirostris )
Coho Salmon (Oncorhynchus kisutch) - KFFS
Species Studied - Coho Salmon ( Oncorhynchus kisutch )
Steelhead Trout (Oncorhynchus mykiss) - MMFS
Species Studied - Steelhead Trout ( Oncorhynchus mykiss )
Snake River Fall Chinook Salmon Research
Snake River fall Chinook salmon were listed as “threatened” under the Endangered Species Act in 1992. At that time, little was known about the spawning, rearing, migration, and life history of this species. This long-term research and monitoring project has produced much of the contemporary knowledge on fall Chinook salmon that has been used by fish managers to implement recovery measures. The...