Table 1. Unified flow recommendation’s high-flow pulses and floods for dry, normal, and wet years. EFC = environmental flow component. EFC Season Year type Magnitude (m3/s) Frequency Duration Example flow-ecology links Early wet-season high-flow pulses June 1– July 15 Dry Normal Wet 125–170 125–300 125–500 ≥ 1 ≥ 2 ≥ 2 4–10 d Provide cues to migratory fish Reduce predation on juveniles spawned during dry season   Mid wet-season high-flow pulses July 16– Nov. 14 Dry Normal Wet 200–600 200–900 200–900 ≥ 4 ≥ 4 ≥ 4 4–10 d Trigger spawning activity by migratory fish Fish gain access to channel margin habitat   Late wet-season high-flow pulses Nov. 15– Dec. 15 Dry Normal Wet 125–170 125–300 150–350 ≥ 1 ≥ 2 ≥ 2 4–10 d Migration and juvenile dispersal for late-spawning fish Replenish beaches for reptile nesting   Flood Aug. 15– Oct. 30 Dry Normal Wet - 1000–2000 2000–3500 - ≥ 1 ≥ 1 - 15–40 d Sediment transport and maintain channel form Create floodplain topography Provide fish access to floodplain Disperse tree seeds Deposit sediment on agricultural fields