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RAZORBACK SUCKER (Upper Basin and Lower Basin Recovery Units) DOWNLISTING DELISTING . DEMOGRAPHIC CRITERIA (*self-sustaining with recruitment) DEMOGRAPHIC CRITERIA (*self-sustaining with recruitment) Over a 5-year monitoring period: For 3 years beyond downlisting: . Maintain reestablished populations in Green River subbasin and . Maintain populations in Green River subbasin and EITHER in upper EITHER in upper Colorado River subbasin or in San Juan River Colorado River subbasin or in San Juan River subbasin, each> 5,800 subbasin, each > 5,800 adults* adults* . Maintain established genetic refuge of adults in Lake Mohave . Maintain genetic refuge of adults in Lake Mohave . Maintain two reestablished populations in lower basin, each > 5,800 . Maintain two populations in lower basin, each > 5,800 adults. adults* RECOVERY FACTOR CRITERIA RECOVERY FACTOR CRITERIA Upper Basin Recovery Unit Upper Basin Recovery Unit I. Beneficial flow regimes identified, implemented, evaluated, and revised I. Necessary flow regimes provided 2. Passage over Redlands and Grand Valley diversions continued 2. Passage over Redlands and Grand Valley diversions continued 3. Modification of Price-Stubb and Government Highline dams to allow 3. Modification ofPrice-Stubb and Govemment Highline dams to allow passage initiated passage completed 4. Barriers on San Juan River identified, evaluated, and modifications to 4. Barriers on San Juan River modified to allow passage allow passage initiated 5. Aspinall Unit releases modified, if determined feasible and necessary 5. Investigations initiated on modifying Aspinall Unit releases to increase 6. Devices installed and/or measures implemented at diversion structures to water temperatures minimize entrainment of subadults and adults 6. Measures identified to minimize entrainment of subadults and adults at 7. Bottomland sites acquired diversion structures 8. Adequate protection from overutilization attained 7. Appropriate bottomland sites identified and opportunities for land 9. Adequate protection from diseases and parasites attained acquisition assessed 10. Nonnative fish stocking procedures finalized and implemented 8. Overutilization reevaluated and, if necessary, actions identified to ensure II. Identified levels of nonnative fish control in backwaters and flooded off- adeq uate protection channel nursery habitats attained 9. Effects of diseases and parasites reevaluated and, if necessary, actions 12. Identified levels of channel catfish control attained identified to ensure adequate protection 13. Identified levels of northern pike control attained 10. Nonnative fish stocking procedures developed, implemented, evaluated, 14. Necessary habitat legally protected in perpetuity and revised 15. Conservation plans developed and implemented, and necessary agreem.:nlS II. Control programs for small-bodied nonnative fishes in backwater and executed flooded off-channel nursery habitats developed and implemented to 16. Identified levels of white sucker control attained identify necessary control levels 17. Emergency-response plans for hazardous-materials spills implemented 12. Channel catfish control programs developed and implemented to identify 18. Emergency shut-offvalues installed on problematic petroleum pipelines necessary controll~vels 19. Groundwater contamination remediated at Atlas Mills tailings pile 13. Northern pike control programs developed and implemented to identify 20. Deleterious levels of selenium contamination reduced necessary control levels 14. Mechanisms determined for legal protection of habitat Lower Basin Recovery Unit 15. Elements of conservation plans identified 16. Levels of hybridization with white sucker reevaluated, effects assessed, I. Necessary flow regimes provided and, if necessary, white sucker control programs developed and 2. Devices installed and/or measures implemented at diversion and/or out- implemented to identify necessary control levels take structures to minimize entrainment of subadults and adults 17. Hazardous-materials spills emergency-response plans reviewed and 3. Riverside sites acquired modified as necessary 4. Adequate protection from overutilization attained 18. Locations of petroleum pipelines in 100-year floodplain of critical habitat 5. Adequate protection from diseases and parasites attained identified and need for emergency shut-off valves assessed 6. Nonnative fish stocking procedures finalized and implemented 19. Actions identified for remediation of groundwater contamination at Atlas 7. Identified levels of nonnative fish control in the mainstem, floodplain, and Mills tailings pile tributaries attained 20. Effects of selenium reevaluated and, if necessary, actions identified to 8. Necessary habitat legally protected in perpetuity reduce deleterious levels 9. Conservation plans developed and implemented, and necessary agreements executed Lower Basin Recovery Unit I. Beneficial flow regimes identified, implemented, evaluated, and revised 2. Measures identified to minimize entrainment of subadults and adults at diversion and/or out-take structures 3. Appropriate riverside sites identified and opportunities for land acquisition assessed 4. Overutilizationreevaluated and, if necessary, actions identified to ensure adequate protection 5. Effects of diseases and parasites reevaluated and, if necessary, actions identified to ensure adequate protection 6. Nonnative fish stocking procedures developed, implemented, evaluated, and revised 7. Control programs for nonnative fishes in the mainstem, floodplain, and tributaries developed and implemented to identify necessary control levels 8. Mechanisms determined for legal protection of habitat 9. Elements of conservation plans identified