Analysis of Chinook Salmon in the Columbia River from an Ecosystem Perspective. Final Report.

Technical Report · Sun Jan 01 00:00:00 EST 1995

DOI:https://doi.org/10.2172/81930· OSTI ID:81930

Lichatowich, James A; Mobrand, Lars E

Ecosystem Diagnosis and Treatment (EDT) methodology was applied to the analysis of chinook salmon in the mid-Columbia subbasins which flow through the steppe and steppe-shrub vegetation zones. The EDT examines historical changes in life history diversity related to changes in habitat. The emphasis on life history, habitat and historical context is consistent with and ecosystem perspective. This study is based on the working hypothesis that the decline in chinook salmon was at least in part due to a loss of biodiversity defined as the intrapopulation life history diversity. The mid Columbia subbasins included in the study are the Deschutes, John Day, Umatilla, Tucannon and Yakima.

• Research Organization: Mobrand Biometrics, Inc., Vashon Island, WA (US)
• Sponsoring Organization: US Bonneville Power Administration
• DOE Contract Number: AM79-92BP25105
• OSTI ID: 81930
• Report Number(s): DOE/BP-25105-2; ON: DE95014417; TRN: US200306%%81
• Resource Relation: Other Information: Supercedes report DE95014417; PBD: 1 Jan 1995; PBD: 1 Jan 1995
• Country of Publication: United States
• Language: English

Related Subjects

13 HYDRO ENERGY
COLUMBIA RIVER
DIAGNOSIS
ECOSYSTEMS
HABITAT
HYPOTHESIS
PLANTS
SALMON
SPECIES DIVERSITY
PROGRESS REPORT
Chinook salmon - Columbia River