HORB at the Old River and San Joaquin conluence

This year’s VAMP study includes the test of a barrier that includes sound, light, and bubbles to keep fish from entering Old River. Tests show that juvenile Chinook survive better when they stay in the San Joaquin River, rather than travel downstream through Old River where they have to navigate hazards at the state and federal facilities in the South Delta.

• Delta
• juvenile salmon
• San Joaquin River
• study
• survival