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<br />""I;<,./.,\t;;\:,,~.~~~\~;/:..... '. ' 2
<br />
<br />Iii. iii ,e ~~3, :,Catch rates (number/100m) for young-of-the-year (yay)
<br />,"i'f";1"~,,:,,' : channel catfish and common carp collected in mainchannel habitats (top)
<br />,t!'!.;,:' \, ..,' in autumn and secondary channel habitat~ in August (bottom)
<br />".., , " , during seining surveys of the San Juan River, 1991 to 1996. . . . . . . . . . . . . . . 4 - 78
<br />(~;~'~ .
<br />, " J), -, ~
<br />, ..' Figure 4.34.
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<br />Flow (as measured at Four Corners gage 09371010)
<br />vs. average condition (K = 100w/l3) for adult channel catfish (top)
<br />and adult common carp (bottom) collected during May and October
<br />electrofishing surveys of the San Juan River, 1991 to 1997. .............. 4 - 80
<br />
<br />Figure 4.35.
<br />
<br />Density of red shiner in the San Juan River (5-mile increments),
<br />1992 to 1997, New Mexico, Colorado, and Utah. . . . . . . . . . . . . . . . .. . . . . . . 4 - 84
<br />
<br />....:;
<br />", Figure 5.1. Selenium (Se) concentration in macroinvertebrates vs. distance downstream
<br />in the San Juan River. ............................................ 5 - 3
<br />
<br />Figure 6.1 , The relationship between habitat needs and flow for the native fishes
<br />of the San Juan River. ...........,....'........................... 6 - 5
<br />
<br />Figure 7.1 . Flow/habitat relationships for four low velocity habitats used
<br />by rare fish in the San Juan River. . . . . . . . . ' . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 4
<br />
<br />Figure 7.2. Flow/backwater habitat area relationships for Reach 3. . . . . . . . . . . . . . . . . . . . 7 - 5
<br />
<br />Figure 7.3. Flow/backwater habitat model for Reaches 1 to 4 and 1 to 5 based
<br />on flushed and nonflushed conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 6
<br />
<br />Figure 7.4. Schematic of the San Juan River Basin as modeled, excluding gains
<br />and losses associated with the Animas-La Plata Project (ALP)
<br />without modeled details of the tributaries. ,..,........................ 7 - 14
<br />
<br />Figure 7.5. The San Juan RiverWare Model as it appears on the computer screen
<br />showing the mainstem reach from Navajo Dam downstream towards
<br />Farmington, New Mexico. ..........................,..........,.. 7 - 15
<br />
<br />Figure 8.1. Flow chart of Navajo Dam operating rules. ..........................,. 8 - 9
<br />
<br />Figure 8.2. Frequency/duration relationship for flows exceeding
<br />2,500 cubic feet per second (efs). .................................. 8 - 13
<br />
<br />Figure 8.3. Frequency/duration relationship for flows exceeding
<br />5,000 cubic feet per second (cfs). .................................. 8 - 13
<br />
<br />Figure 8.4. Frequency/duration relationship for flows exceeding
<br />8,000 cubic feet per second (cfs). .........,........................ 8 - 14
<br />
<br />Figure 8.5. Frequency/duration relationship for flows exceeding
<br />10,000 cubic feet per second (cfs). ................................. 8 - 14
<br />
<br />SJRIP Biology Committee
<br />16 September 1998
<br />
<br />T -10
<br />
<br />Table of Conlents
<br />Oralt Flow Report
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