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<br />Proposed Water Year 2005-2006 Experimental Actions <br /> <br />8 <br /> <br />slightly less than the area lost in 1996 that was determined by USFWS to be within the <br />17% of incidental take limits, <br /> <br />Mitigation efforts in 2005 will include temporarily removing primary habitat that is <br />below the high experimental flow stage and replacing these cuttings back to their <br />original place following the high flow. The success of this action has yet to be <br />determined; tmdoubtedly some plant mortality will occur, but the loss of habitat may be <br />decreased through these efforts and may serve to reduce the total amount of incidental <br />take associated with the high flowevent. Because snails will also be temporarily <br />removed, mortality that might be increased as a result of snails being washed away and <br />drowned may be reduced through these conservation actions. <br /> <br />Losses of KAS habitat and KAS at Vasey's Paradise are partially offset by the developing <br />population at Upper Elves Chasm, Long-term success of this population cannot be <br />assured, but the population has persisted for 5 years, The 25 m' of estimated occupied <br />habitat is approximately 20% of habitat expected to be temporarily lost at Vasey's <br />Paradise tmder the Proposed Action, without the conservation action, <br /> <br />Non-native Fish Suppression Flows <br /> <br />Habitat at Vasey's Paradise for the ambersnail measured in August 2004 occupied an <br />area down to the 17,000 cis stage, because discharge from Glen Canyon Dam included <br />releases in August up to 17,000 cis, This habitat would be scoured prior to the <br />suppression flows by the high experimental flow tmder both No Action and Proposed <br />Action with sediment triggers being attained. The ambersnail habitat would not have <br />recovered from the high experimental flow sufficiently for the non-native fish <br />suppression flows to have an affect. If the high experimental flow is not released, the <br />suppression flows would still be released tmder the Proposed Action. In this case there <br />could be a small loss of ambersnail habitat from the high stage of the 5,000-20,000 cis <br />fluctuations, <br /> <br />Conclusion <br /> <br />We conclude that the Proposed Action may affect, and will likely adversely affect, KAS <br />at Vasey's Paradise, The translocated Vasey's Paradise population at Elves Chasm will <br />not be affected by the Proposed Action, <br /> <br />Reptiles and Amphibians <br /> <br />Alternating Low Steady and Low Fluctuating Flows <br /> <br />The deviation between the No Action and Proposed Action for these flows is expected to <br />be small during water years 2005-2006 because in an 8,23 million acre-foot water year, all <br />