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<br /> Proposed Action <br /> No Action <br />Resource Alternative <br /> Experimental Dam Releases Mechanical <br /> Removal <br /> 8.000 cis 6,500-9,000 cfs 5,000-20,000 31,000- 42,000-45.000 - <br /> steady flow fluctuating flow cfs fluctuating 33,000 cfs cis high flow <br /> flow high flow <br /> -----~ -- --..--.---- -..- ._--"-~-_.- --~ <br /> affect sight- remaining <br /> feeders; trout <br /> increased <br /> suspended <br /> sediment <br /> reduces <br /> visibility for <br /> trout <br />Aquatic Continued May promote Not measurably Potential Small bodied Temporary Small <br />Species: successful successful different than displacement of fish displacement of potential <br />Non-Native reproduction spawning for No Action small-bodied temporarily small fish for <br />Fish Other and small-bodied fish; increased displaced downstream decrease <br />than Trout persistence fish in west food base drift within <br /> Grand Canyon depletion <br /> reach <br /> Not measurably Increased Displacement Improved - <br />Aquatic Stability in Not measurably Small <br />Species: recruitment of different than different than turbidity resuUs from rearing spawning and potential <br />Native Fish - flannel mouth No Action No Action in less habitats in rearing habilat for <br />Other than sucker predation by July-Oct; in following temporary <br />Endangered trout decreasing year decrease <br /> effect into within <br /> winter depletion <br /> reach <br />Endangered Continued Potential for Some reduction Reduced Increased Anticipated Some <br />Species: low limited in daily minimum flow downstream positive effect potential <br />Humpback recruitment improved fluctuations will limit food displacement on nearshore for <br />Chub and conditions in may allow base of young-of- rearing habitats incidental <br /> population nearshore increased productivity; year fish from through take from <br /> decline; rearing habitats warming in greater daily nearshore rejuvenation; electrofishi <br /> rearing rearing habitats fluctuations will habitats Jul- short-tem n9; <br /> habitats increase drift of Ocl; potential negative effect improved <br /> heavily food base for some on food base; survivorshi <br /> impacled by rearing limited p from <br /> daily habitat displacement of reduced <br /> fluctuating rejuvenation juvenile fish, predation <br /> flows and very little and <br /> - -- <br /> <br />0 0 <br />::r '.... <br />OJ <br />TI 'N <br />(t;- O <br />, <br />w W <br /><:) <br />~ <br />" <br />(t;- <br />e>- <br />m <br />:J <br />,s. <br />0 <br />:J <br />3 <br />(lJ <br />~ <br />OJ <br />:J <br />e>- <br />m <br />:J <br />,s. <br />, <br />0 <br />:J <br />3 <br />(lJ <br />:J <br />![ <br />0 <br />0 <br />:J <br />en <br />(lJ <br />D <br />c: <br />(lJ <br />:J <br />" <br />(lJ <br />en <br />0 <br />:J <br />W <br />~ <br /> <br />