Our initial investigations involved identifying kelts from prespawn fish. Using visual and ultrasound sonograms we concluded that 1000’s of kelts were available in the juvenile bypass systems. At Lower Granite Dam collections of kelt steelhead in the bypass generally comprised about 20% of the previous spawning run. This percentage varies with spill and now is effected by the operation of the RSW. Lastly, kelts are 85-90% female.