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3.0 Scientific Basis And Underlying Principles 3-12 April 2004 Management Action or Event YEAR 1 YEAR 2 YR R1 Year--> 0 I 2 3 4 5 6 7 8 9 I 1 1 1 1 1 1 I 1 I 2 2 2 2 2 2 2 2 2 2 3 3 J F M A M J J A S 0 N D J F M A M J J A S 0 N D J F M A M J J A S 0 N D Floodplain connected; larvae become <> entrained Fish remain in floodplain through summer <------------------------------> and over winter year 1 Floodplain connected; fish remain <> entrained ESCAPE SCENARIO 1: Floodplain is <---> drained forcing fish to leave after 16 m Fish remain in floodplain through summer <--------------------------> and over winter year 2 ESCAPE SCENARIO 2: Floodplain <> connected; some fish leave voluntarily ESCAPE SCENARIO 3: Floodplain is <---> drained forcing fish to leave after 28 m Fish size at growth rate: LOW 20 100 210 312 363 MODERATE 20 150 300 512 530 HIGH 20 200 400 536 560 Figure 3-5. Floodplain management strategy with three escape scenarios that assume the fish will return to the main river. Size offish in millimeters at the end of indicated number of months is presented for low, moderate, and high growth rates.