Instream flow-habitat relationships in the Nueces River Basin Page: IV
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FIGURES
Figure 1 M ap of Study Sites............................................................................................................. ........................... 1
Figure 2 Concan Cross Sections ....................................................................................................... .......................... 3
Figure 3 Laguna Cross Sections......................................................................................................... .......................... 3
Figure 4 Three Rivers Cross Sections................................................................................................ ......................... 3
Figure 5 G eneralized study site m ap ............................................................................................. ............................ 4
Figure 6 Rating Curve used for Three River Cross Sections........................................................................5
Figure 7 Rating Curve used for Concan Cross Sections........................... ..............................6
Figure 8 Rating Curve used for Laguna Cross Sections..................................................................................................6
Figure 9 WSE and Velocities predicted by hydraulic model for Cross Section 1 (Riffle) at Three Rivers......................7
Figure 10 Habitat Suitability Indices for Bullhead minnow ........................................................................................8
Figure 11 Flow versus Weighted Usable Area Curve (WUA) for Cross Section 1 (Riffle) at Three Rivers.....................9
Figure 12 Bullhead minnow habitat at 5 cfs at Cross Section 1 (Riffle) at Three Rivers............................................10
Figure 13 Bullhead minnow habitat at 50 cfs at Cross Section 1 (Riffle) at Three Rivers...........................................11
Figure 14 Bullhead minnow habitat at 140 cfs at Cross Section 1 (Riffle) at Three Rivers.........................................12
Figure 15 HEFR values overlain on Flow versus Weighted Usable Area Curve (WUA) for Cross Section 1 (Riffle) at
T h re e R iv e rs..................................................................................................................................... ........................... 1 3
Figure 16 Quantity versus quality of available habitat at the Three Rivers study site.............................................17
Figure 17 Quantity versus quality of available habitat at the Laguna study site......................................................19
Figure 18 Quantity versus quality of available habitat at the Concan study site.....................................................20
TABLES
T able 1 Study Sites........................................................................................................................ ............................ 2
Table 2 M odified W entw orth substrate scale...............................................................................................................5
Table 3 Species for which Habitat Suitability Curves were developed for use in the Physical Habitat Model.............8
Table 4 Flow versus Weighted Usable Area (WUA) for Cross Section 1 (Riffle) at Three Rivers at HEFR flows derived
from alternative periods of record ................................................................................................. ........................... 15
Table 5 Sum m ary of spreadsheet sheets and m acros.................................................................................................23IV
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Trungale Engineering & Science. Instream flow-habitat relationships in the Nueces River Basin, report, June 2011; Austin, Texas. (https://texashistory.unt.edu/ark:/67531/metapth415072/m1/4/?rotate=90: accessed July 1, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.