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<br />Critical habitat was proposed for each of the four species by evaluating river segments, or
<br />reaches. A detailed discussion of the biological basis for selection of each river reach
<br />proposed for critical habitat was included in the Biological Support Document. This
<br />discussion also indicated the attributes of the constituent elements that need to be enhanced,
<br />Tables 1 and 2 provide a summary of the applicable constituent elements for each river reach
<br />being proposed for critical habitat. This information was condensed from the Critical Habitat
<br />section of the Biological Support Document. . A discussion of proposed critical habitat is
<br />presented by river reach in the Biological Support Document.
<br />
<br />Table 1. Constituent elements for razorback sucker by proposed critical habitat reach.
<br />
<br />RIVER CONSTITUENT ELEMENTS' OTHER CRITERIA'
<br />REACH'
<br /> WATER PHYSICAL BIOLOGICAL AOOmONAL RECOVERY
<br /> HABITAT ENVIRONMENT SELECIlON TEAM
<br /> CRITERIA
<br />RZI WI,W2 Pl,P2,P3.P4 BI AI,A2,A3.M,AS Y
<br />RZ2 WI?, W2 PI,P2,P3,P4 BI A I ,A2,A3,M,AS Y
<br />RZ3 WI PI,P2,P3,P4 BI AI,A2,A3,M,A5 Y
<br />RZ4 WI,W2 PI,P2,P3.P4 BI A2,A3,A5 Y
<br />RZ5 WI? PI ?,P2,P3.P4 BI A2.A3,M,A5 Y
<br />RZ6 WI,W2? PI.P2,P3,P4 BI,B2?,B3? A2,A3.A4,A5 Y
<br />RZ7 WI PI.P2,P3,P4 BI A I.A2.A3.A4,A5 Y
<br />RZ8 WI PI,P2,P3.P4 BI AI,A2,A3,M,AS Y
<br />RZ9 WI?,W2? PI,P2.P3,P4 BI A I ,A2,A3,A4,A5 Y
<br />RZIO WI?,W2 PI,P2,P3,P4 BI A I ,A2,A3,A4,A5 Y
<br />RZII WI.W2 PI.P2,P3.P4 BI Al.A2.A3,A4.AS Y
<br />RZI2 Wl,W2 PI,P2,P3.P4 BI AI.A2,A3,A4,AS Y
<br />RZI3 Wl,W2? PI,P2.P3,P4 BI A2,A3.A4,A5 Y
<br />RZI4 WI,W2 PI,P2,P3,P4 BI A2.A3.A4,AS Y
<br />RZI5 WI.W2? PI,P2,P3,P4 BI A2,A3,A4.A5 Y
<br />
<br />I - A description of each "River Reach" code is given in this section.
<br />
<br />2 - The presence of a criterion code under the appropriate colunm in the table indicates that criterion is mel within thal reach. The use of a question mark: (?)
<br />behind a criterion code indicates insufficient data to detennine with certainty if the criterion is met within that reach.
<br />
<br />Water:
<br />Physical Habitat:
<br />
<br />BIoIogkal Environment:
<br />Additional Selection Criteria :
<br />
<br />Wl=Qualily; W2=Quantity
<br />PI =Spawning Habital; P2=Nursery Habila!
<br />P3=Feeding Areas; P4=Movemenl Corridors
<br />Bl=Food Supply; B2=Predation;B3=Competition
<br />A I =Known or suspected spawning population;
<br />A2=Area with juvenile razorback sucker or nursery habila!;
<br />A3=Presently or historically occupied;
<br />A4=lmponanl for mainlaining rangewide distribution;
<br />A5=Special managemenl or protection required
<br />Y =Recovery Team suggestion for razorback sucker
<br />
<br />Other criteria:
<br />
<br />3
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