Balanced Scenario Overview

Existing habitat for the American River, Tuolumne River, Yuba River, and Mokelumne River were updated for the Balanced scenarios following communication with streams directly.

• American River provided updated existing instream habitat.

• Mokelumne River provided updated existing spawning, instream, and floodplain habitat.

• Tuolumne River provided updated existing spawning and instream/floodplain (combined rearing) habitat.

• Yuba River provided updated existing instream and floodplain habitat.

Scenario	Description	Model inputs
Platypus		Habitat Theoretical Maximum habitat inputs Food subsidies Predation reduction Hydrology Functional flows (Sacramento/San Joaquin) Harvest No harvest of dry-year cohorts (ocean, in-river) Intelligent habitat harvest (ocean, in-river) Tribal harvest prioritized Hatcheries Terminal hatchery / outplanting
Elephant		Habitat Near-future habitat (includes some projects included in the Healthy Rivers and Landscapes (HRL) program) Floodplain habitat (Sac) Food subsidies (Jan-Mar) Predation reduction (small-scale) Hydrology Planned flow operations (includes planned habitat + spring flow actions, which are proposed as part of the HRL program) Harvest Intelligent CRR harvest Tribal harvest prioritized Hatcheries Phased hatcheries Weirs
Tortoise		Habitat Current and planned Floodplains/rice fields (Sacramento / San Joaquin) Food subsidies (dry years) Predation reduction (dry years) Hydrology Functional Flows (FF) - dry years Harvest No harvest of dry year cohorts (ocean/commercial, tribal, recreational) Harvest only hatchery fish (ocean/commercial, tribal, recreational) all years Tribal harvest prioritized Hatcheries Phased hatcheries Weirs