Forage

1. Perennial Channel/ Backwater Riparian Channel Margin Floodplain Use : Floodplain/ Bypasses Refuge/ Forage Forage Forage Emigrate Fertilizer Emigrate Fertilizer Spawn Spawn 1a 1b Juvenile Adult Forage Path 1 * * 2a 2b Path 2 Adult * * Path 3 Juvenile Adult * Potential Emigration Cues Declining Water Level Increasing Water Temperature Growth Threshold Change in Reproductive State Forage Spawn Fig. 1. Conceptual model of fish use of inundated floodplain habitat. Species/life stage lists for each path are presented in Table 1.

2. Water Year Floodplain/ Bypasses Inundation Oct Splittail Blackfish/Carp /Goldfish/other introduced minnows Largemouth Bass/Black Crappie Various Sunfish Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Fig. 2. Approximate seasonal occurrence of floodplain inundation and spawning for select native and introduced fish species that may spawn on flooded habitats (see Table 1). Dotted line indicates some occurrence, solid line indicates primary period of occurrence (Calhoun 1966, Wang 1986, DFG unpublished data).