A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Multi-Year Analysis of Passage and Survival at McNary Dam, 2004-09
The authors analyzed 6 years (2004-09) of passage and survival data collected at McNary Dam to determine how dam operations and environmental conditions affect passage and survival of juvenile salmonids. A multinomial logistic regression was used to examine how environmental variables and dam operations relate to passage behavior of juvenile salmonids at McNary Dam. We used the Cormack-Jolly-Seber release-recapture model to determine how the survival of juvenile salmonids passing through McNary Dam relates to environmental variables and dam operations. Total project discharge and the proportion of flow passing the spillway typically had a positive effect on survival for all species and routes. As the proportion of water through the spillway increased, the number of fish passing the spillway increased, as did overall survival. Additionally, survival generally was higher at night. There was no meaningful difference in survival for fish that passed through the north or south portions of the spillway or powerhouse. Similarly, there was no difference in survival for fish released in the north, middle, or south portions of the tailrace.
Multi-Year Analysis of Passage and Survival at McNary Dam, 2004-09
The authors analyzed 6 years (2004-09) of passage and survival data collected at McNary Dam to determine how dam operations and environmental conditions affect passage and survival of juvenile salmonids. A multinomial logistic regression was used to examine how environmental variables and dam operations relate to passage behavior of juvenile salmonids at McNary Dam. We used the Cormack-Jolly-Seber release-recapture model to determine how the survival of juvenile salmonids passing through McNary Dam relates to environmental variables and dam operations. Total project discharge and the proportion of flow passing the spillway typically had a positive effect on survival for all species and routes. As the proportion of water through the spillway increased, the number of fish passing the spillway increased, as did overall survival. Additionally, survival generally was higher at night. There was no meaningful difference in survival for fish that passed through the north or south portions of the spillway or powerhouse. Similarly, there was no difference in survival for fish released in the north, middle, or south portions of the tailrace.
Multi-Year Analysis of Passage and Survival at McNary Dam, 2004-09
N. S. Adams (author) / C. E. Walker (author) / R. W. Perry (author)
2011
140 pages
Report
No indication
English
Fisheries & Aquaculture , Ecology , Electric Power Production , Civil Engineering , Fish passage facilities , Dams , Spillways , Fishways , Tables (Data) , Hydroelectric power , Figures , Passage analysis , Data analysis , Graphs (Charts) , Survival analysis , Temporal survival estimates , McNary Dam , Juvenile steelhead , Subyearling Chinook Salmon
Fish passage facilities at McNary Dam
| Engineering Index Backfile | 1956
Juvenile Fish Passage System at McNary Dam
| British Library Conference Proceedings | 1997
| Engineering Index Backfile | 1953
Development of a Multi-Beneficial Surface Bypass Alternative for Juvenile Fish Passage at McNary Dam
| British Library Conference Proceedings | 2008
Large scale construction at McNary
Engineering Index Backfile | 1949