Table of contentsSpring Chinook Salmon Interactions Indices - Competition Purpose Beverton/Holt and Ricker Importance of Density Dependence Capacity changes Yakima River at Cle Elum 98-06 Discharge vs. Cross Sectional Area Food vs. Flow (2006) Length vs. Focal Velocity 98-06 What happens to habitable area of juvenile Chinook when discharge increases dramatically relative to normal? Normal vs. Managed Measures Yakima River at Cle Elum 98-06 Habitat area goes down (2005-2006) % of habitable area (05-06) Nelson Hydrograph Increase in habitable area (05-06) Distribution of SPC (Nelson) If flow is influencing habitable space, then what is the magnitude of impact to juvenile spring Chinook salmon and the supplementation program? Assumptions Hypothetical Flow Mortality Until effects of artificial flows and passage are addressed then the scope of supplementation success will be limited by the current capacity Acknowledgments Cle Elum Nelson Discharge vs. Habitable Area Cle Elum cross-sectional area Slide 25 Genetic and Environ. Capacity |
Author: Huffman Paul E-mail: huffmanp@yakama.com |