Microhabitat Utilization and Fish Survey of the San ...Microhabitat Utilization and Fish Survey of...
Transcript of Microhabitat Utilization and Fish Survey of the San ...Microhabitat Utilization and Fish Survey of...
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Microhabitat Utilization and Fish Survey of the San Antonio River
Glenn Longley John Burch Keith Cox
Chad Thomas
March 16, 1998
Edwards Aquifer Research and Data Center Southwest Texas State University, San Marcos, Texas
This project was supported by Texas Water Development Board
Interagency Contract No. 96-483-181
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TABLE OF CONTENTS 11\ iv'lAR 3 ':J 1998
II REGIONAL PLANNING 1-1
& i'ROJEorrs
TABLE OF CONTENTS ....•.•......•....•......•.•..•.•....•..•...•....•.............•......•....•.•..•.•....•.•.... 2
FIGURES ...................................................................................................................... 4
TABLES ........................................................................................................................ 5
APPENDICES ............................................................................................................... 6
1.0 EXECUTIVE SUMMARY ........•.•.•.•....•....•.•.•..•...•..•.•.•.••.•..•.•.•..•.•.•..•.•..•...•.•..•.•..•. 7
2.0 INTRODUCTION ................................................................................................... 7
2.1 Study Area .................................................................................................................................... 7
2.3 Protected Species .......................................................................................................................... 8
2.4 Climate .......................................................................................................................................... 8
2.5 Geology .......................................................................................................................................... 8
3.0 SITE SELECTION .................................................................................................. 8
3.1 Basic Strategy ............................................................................................................................... 8
3.2 Soil Associations ............................................................................................................................ 8
3.3 Hydrologic and Geomorphic Criteria .......................................................................................... 9
3.4 FIELD RECONNAISSANCE ................................................................................. 9
4.0 DATA COLLECTION ............................................................................................ 9
4.1 Bathymetric .................................................................................................................................. 9
4.2 Hydrologic ..................................................................................................................................... 9
4.3 Habitat assessment ........................................................................................................................ 9 4.31 Habitat Mapping and Photodocumentation ............................................................................. 10 4.32 Microhydraulic Effect of Habitat ............................................................................................ 10 4.33 Instream Habitat Classification ............................................................................................... 10
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4.4 Biological Assessment ................................................................................................................. 21 4.41 Biological Indices ................................................................................................................... 21 4.42 Biological Sampling Techniques ............................................................................................ 21
4.5 Physicochemical .......................................................................................................................... 21
4.6 Biological Assessment of Habitat Utilization and Availability Conditions ................................ 21
5.0 RECOMMENDATIONS AND CONCLUSIONS ••.•.•.•.•••••.•.•.•.•.•.••.••.•.•.•.•••.•.•.•.• 27
6.0 REFEREN CES ...................................................................................................... 28
7.0 APPENDICES ....................................................................................................... 30
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FIGURES
1. DAILY MEAN FLOWS AT USGS GAGE 08188500 AT GOLIAD, DURING STUDY PERIOD .....•.....•.......•.....•...........••....••.....•....••....••.....•.....•............•.....•..... 11
2. GENERAL STUDY AREA. SOURCE: USGs. .................................................... 12
3. GENERAL STUDY AREA (SITES 1, 2, 4, AND 5). SOURCE: USGS . .............. 13
4. SPECIFIC STUDY AREA (SITE 1). SOURCE USGS ......................................... 14
5. SPECIFIC STUDY AREA (SITES 2 AND 4). SOURCE: USGS . ........................ 15
6. SPECIFIC STUDY AREA (SITE 5). SOURCE: USGs. ...................................... 16
7. SKETCH MAP OF SITE 1. .................................................................................. 17
8. SKETCH MAP OF SITE 2 ................................................................................... 18
9. SKETCH MAP OF SITE 4 •.•.••..•.••••...••••...••..•.•.•••...•••••.•••••...•••....•••••...••..•..••••.•.•. 19
10. SKETCH MAP OF SITE 5 •..•.••..•••••.•.•••••...........••••...•••.....••••..•••••...•••....•••.•.•.•••... 20
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TABLES
1. INDEX OF BIOTIC INTEGRITY (mI) FOR FISH COLLECTED 1996 AND 1997 ........................................................................................................................ 22
2. LIST OF FRESHWATER FISHES COLLECTED FROM THE SAN ANTONIO .RIVER SySTEM ................................................................................................... 23
3. PHYSICOCHEMICAL DATA FOR 1996 AND 1997, SAN ANTONIO .RIVER.24
4. FLOW DATA FOR MICROHABITATS ON SAN ANTONIO.RIVER FOR SITES 1,2,4 AND 5 DURING SUMMER 1997 ••••••..••.•....•...•••••••.•.•.•••......•........ 25
5. FLOW DATA FOR MICROHABITATS ON SAN ANTONIO.RIVER FOR SITES 1,2, 4 AND 5 DURING WINTER 1997 ..................................................... 26
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APPENDICES
FISH SPECIES CODE FOR BUBBLE GRAPHS ..................................................... 31
MICROHABITAT CODE FOR BUBBLE GRAPHS ............................................... 32
BUBBLE GRAPHS ..................................................................................................... 33
REPRESENTATIVE PHOTOGRAPHS OF SAMPLE SITES ................................ 49
REPRESENT A TIVE MICROHABITAT PHOTOGRAPHS ................................... 53
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1.0 EXECUTIVE SUMMARY
Studies in the West Central area of the Trans-Texas Program have considered possible alternatives for making more water available to the region and relieving demand on the Edwards Aquifer. One alternative is a proposed reservoir to be located on the San Antonio River near Goliad, Texas for water storage and diversion. The purpose of this study was to survey fish microhabitat utilization at study sites on the San Antonio River that will be utilized in the Texas Water Development Board's (TWDB) Macrohabitat Assessment Technique (MAT) for instream flow requirements. This study also used the Index of Biotic Integrity (IBI) proposed by Karr et al. (1986) to assess the water quality at the study sites and continued the listing offish species from this drainage. The species offish present in different habitats were determined. Physicochemical data was collected at each site during each sampling period.
2.0 INTRODUCTION
2.1 Study Area
The San Antonio River headwaters are located in the city of San Antonio, north of Brackenridge Park (Gonzales 1988). They originate from pumped wells drilled into the Edwards Aquifer. The topography at the sample sites consists oflow rolling hills. The riparian zone of the sample sites consisted of hardwood trees, vines, shrubs, and various weeds and grasses. Banks along the San Antonio River were generally high with steep sides.
The four sample sites are located in Goliad county. Much of the land surrounding the sites was used for agriculture (ranching) purposes.
Site 1 was located immediately upstream from the Hwy. 183 bridge in Goliad State Park, south of the city of Goliad. The USGS gage (08188500) used to monitor flows was located at this bridge. Site 2 was located 8 river km downstream of Site 1. Site 4 was located 4 river km downstream from Site 1. Access to Sites 2 and 4 was through the Baker Ranch located offHwy. 59, southwest of the city of Goliad. Site 5 was located immediately upstream from the Duke bridge on Hwy. 2506, south of the town of Fannin.
This study used fish species as biological indicators of water quality. The biological methods indicate that the stream at all sites had poor to fair water quality. Extensive laboratory chemical analyses were done on previous studies (Whiteside, et al. 1993 and Whiteside, et al. 1994). Temperature, dissolved oxygen, pH, and specific conductivity were recorded at each sample date.
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2.3 Protected Species
No endangered or protected species were found at these three sites. No effort was made to collect species other than fish.
2.4 Climate
All four San Antonio River sites are located in South Central Texas. The rainfall has varied greatly during 1996 and 1997 to the extent that this region experienced a drought and flood period within a 12 month period. The study area is humid subtropical with hot summers. Rainfall averages 33 inches annually and is heaviest in May and September (Mathews and Tallent 1996). The prevailing winds are southeasterly, often pushing warm, moist air from the Gulf of Mexico during spring, summer and fall. This leads to very sporadic rainfall, often from thunderstorms during these months. In the winter some Polar air flows into the area and is often stopped by warmer air off the Gulf. This usually results in mild winters. Rainfall during the winter is usually distributed along frontal boundaries, giving a more uniform coverage of rain than the thunderstorms that predominate during the rest of the year (Mathews and Tallent 1996).
2.5 Geology The river substrate consists of soft mud, sand, and silt along the edges and sand and small gravel in the middle of the channel. Pools and runs are the common morphological habitat types of the river. Rimes are rare except for small ones found along sharp, rocky bends. The water color ranges from a murky brown to a translucent green. Fallen trees, exposed roots, other woody debris, pools, and runs made up most of the microhabitats. Aquatic macrophytes are typically nonexistent, however, algae grows on some of the submerged rocks and trees (Findeisen 1997).
3.0 SITE SELECTION
3.1 Basic Strategy
An important step in environmental assessment of the aquatic communities is the selection of the study sites. TWDB staff required sites that had representative habitat and hydrologic conditions which would allow them to obtain information useful to their MAT protocol. TWDB staff participated in the selection of sites. Once sites were chosen, sampling began. Photos were made of the sites and of the microhabitats.
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3.2 Soil Associations The study area is located in the Coastal Plains area of the state. Soils near the river are dark gray to reddish brown calcareous clay loams and clays were prevalent (Arbingast, et al. 1976).
3.3 Hydrologic and Geomorphic Criteria
The intent of the study was to combine the reports of the San Antonio River fish sampling during winter and summer seasons at three different flow ranges: low (150-225 cfs), medium (225-300 cfs), and high (300-400 cfs).
3.4 Field Reconnaissance
As indicated under 3.1, both Edwards Aquifer Research and Data Center (EARDC) and TWDB staff were utilized to help locate suitable sites. Participating in this phase were Dr. Glenn Longley, Director ofEARDC at Southwest Texas State University (SWTSU), and two SWTSU graduate students, John Burch and Keith Cox. Ray Mathews, fisheries biologist/ecologist (Contract Manager), James Tallent, civil engineer; and Randy Bums, hydrogeologist participated from TWDB. The ecologists offered ideas of suitable microhabitats while the geomorphologists assisted in the determination of stream segments with several flow characteristics.
4.0 DATA COLLECTION
4.1 Bathymetric
This work is to be done by the TWDB.
4.2 Hydrologic
Additional work is to be done primarily by the TWDB staff. Information from the USGS gage 08188500 at Goliad, was used to determine when stream flow was within appropriate range for sampling to be performed. The daily mean flows for San Antonio River during 1996-1998 can be seen in Figure 1.
4.3 Habitat assessment
US Environmental Protection Agency (EPA), Texas Natural Resource Conservation Commission (TNRCC) and Texas Parks and Wildlife (TPWD) have been using illI protocols in the state to develop criteria for stream classifications (Bayer, et al. 1992). TWDB staff have developed their own system, known as MAT, for describing instream flow needs (Mathews and Bao 1991). This study utilizes the combination of illI protocols and MAT.
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z: ... 10000
L..J l!l 0:: <I: :J: (.) If) ... "" z: <I: L..J E 1000 )-...J ... <I:
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USGS 08188500 SAN ANTONIO RIVER AT GOLIAD, TX.
02/01/97 05/01/97 08/01/97 DATES: 09/01/1996 to 01/31/1998
Data is provisional and subject to revision. Source: USGS
11/01/97
Daily mean flows at USGS gage 08188500 at Goliad, during study period.
Figure 1.
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4.31 Habitat Mapping and Photodocumentation
Figures 2 and 3 show generalized maps of the study location. Figures 4,5,6 show the study sites on USGS quadrant maps. Figures 7,8,9, and 10 are sketch maps showing microhabitat locations within the study site. Numbers on the maps correspond with the microhabitat code found in Appendix 1. Representative photographs of the sample sites and microhabitats within those sites are found in Appendix 3.
4.32 Microhydraulic Effect of Habitat
This work is to be completed by TWDB staff.
4.33 lnstream Habitat Qassijication
Habitat is basically a locality, site or particular type of environment on a micro scale that is occupied by an organism or population of organisms.
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General study area. Source: USGs. Figure 2.
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·Nt SCALE: 1 INCH = 14,388 FEET
General study area (Sites 1,2,4, and 5). Source: USGs. Figure 3.
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\ " I
Specific study area (Site 1). Source USGS. Figure 4.
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Specific study area (Sites 2 and 4). Source: USGS. Figure 5.
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di", II II II
" II II
'73
" ,Nt II \\
" II
" \I SCALE: I INCH"" 2,000 FEET
" " " II \I II -, " I " ,
I " / '\ I ' "
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Specific study area (Site 5). Source: USGS. Figure 6.
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+
Nt
GOLIAD STATE PARK
46 8 13 4
Numbers correspond with microhabitat code numbers. (Site is 2,566 feet in length)
Sketch map of Site I.
Figure 7.
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HWY.183
13
8 4
4 13 4
13
Nt 1
FENCE
Numbers correspond with microhabitat code numbers. (Site is 1,821 feet in length)
Sketch map of Site 2.
Figure 8.
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BAKER RANCH
FLOW ).
Nt
15 13
8 6 14 4
4
Numbers correspond with microhabitat code numbers. (Site is 1,817 feet in length)
Sketch map of Site 4.
Figure 9.
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9 13 7
4
8
N'
13 23 16
134
8
13
DUKE BRIDGE
Numbers correspond with microhabitat code numbers. (Site is 2,063 feet in length)
Sketch map of Site 5.
Figure 10.
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4.4 Biological Assessment
Water development projects such as the ones proposed alter the natural flow of the stream. It is important to know what the impact of the altered flows will be on the biological community. This information is important since it may be necessary to mitigate the effect of the altered flows by various management options.
4.41 Biological Indices
The indices used in this study have been developed by the EPA and modified for the purpose of categorizing stream segments. The water quality assessment technique chosen was the IBI found in Table 1. Reference streams were Arenosa Creek, Metate Creek, Placedo Creek, San Miguel Creek and West Caranchua Creek as used in previous studies of these sites (Whiteside, et aL 1993 and Whiteside, et aL 1994). A list of the fishes used in the IBI calculations can be found in Table 2. Additionally, the MAT methodology developed by TWDB was considered and the data was collected in such a way as to be useful for this type of technique.
4.42 Biological Sampling Techniques
The information gathered from sampling can be seen in bubble graphs which indicate the fish collected from different habitats (Appendices 1, 2, and 3). The Appendices include bubble graphs that represent individual sample dates and combined sampling dates from a previous study.
4.5 Physicochemical
The following parameters were analyzed in the field: temperature, pH, dissolved oxygen, specific conductance and flows at each microhabitat The results, for sampling done during this study are in Table 3. Flows for the individual microhabitats at each site are found in Tables 4 and 5.
4.6 Biological Assessment of Habitat Utilization and Availability Conditions
The TWDB staffwill complete this portion of the study utilizing MAT methods.
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Table l. Index of Biotic Integrity (illI) for fish collected 1996 and 1997.
Site 1 Site 2 Site 4 Site 5 Sample Date: 3-Jan-97 I-Nov-97 I-Nov-97 I-Nov-97
Winter at med flows
Raw Metric Raw Metric Raw Metric Raw Metric Metrics Used: Score Score Score Score Score Score Score Score
Total # of Species 7 3 4 1 2 1 5 3 # of Darter/Catfish 2 3 0 1 0 1 3 Species # of Sunfish Species 1 1 1 0 # of Minnow Species 2 3 3 3 2 3 # of Intolerant Species 0 1 0 1 0 1 0 1 % Green Sunfish 0% 5 0% 5 0% 5 0% 5 % Omnivores 12% 5 30% 3 75% 7% 5 % Insectivores 46% 5 60% 5 25% 3 93% 5 % Top Carnivores 23% 5 10% 5 0% 0% Total # ofIndividuals 26 10 4 1 28 1 % Hybrids 0% 5 0% 5 0% 5 0% 5 % Diseased! Anomalies 0% 5 0% 5 0% 5 0% 5
IBI Score 42 36 28 38 Score Interpretation Fair Fair Poor Fair
illI = Index of Biotic Integrity
Site 1 Site 2 Site 4 Site 5 Sample Date: 9-Sep-97 9-Sep-97 10-Sep-97 22-Oct-97
Summer at bigh flows
Raw Metric Raw Metric Raw Metric Raw Metric Metrics Used: Score Score Score Score Score Score Score Score
Total # of Species 6 3 8 3 8 3 9 3 # of Darter/Catfish 2 3 2 3 2 3 2 3 Species # of Sunfish Species 1 1 3 3 3 3 4 3 # of Minnow Species 1 3 1 3 1 3 1 3 # of Intolerant Species 0 1 0 1 0 1 0 1 % Green Sunfish 3% 5 13% 3 13% 3 6% 3 % Omnivores 10% 5 13% 5 13% 5 11% 5 % Insectivores 31% 3 33% 3 33% 3 69% 5 % Top Carnivores 59"10 5 53% 5 53% 5 19"10 5 Total # of Individuals 29 1 15 1 15 1 36 1 % Hybrids 0% 5 0% 5 0% 5 0% 5 % Diseased! Anomalies 0% 5 0% 5 0% 5 0% 5
IBI Score 40 40 40 42 Score Interpretation Fair Fair Fair Fair
illI = Index of Biotic Integrity
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Table 2. List of freshwater fishes collected from the San Antonio River system.
Family
Lepisosteidae
Anguillidae
Clupeidae
Cyprinidae
Catostomidae
Characidae
Ictaluridae
Poeciliidae
Centrarchidae
Percidae
Cichlidae
Species
Lepisosteus oculatus
Anguilla rostrata
Dorosoma cepedianum
Campostoma anomalum Cyprinella lutrensis C. venusta Macrhybopsis aestivalis Notropis stramineus N. volucellus Pimephales vigilax
Jctiobus bubalus Afoxostoma congestum
Astyanax mexican us
Ameiurus melas A. natalis Jctalurus punctatus Pylodictis olivaris
Gambusia ajJinis Poecilia latipinna
Lepomis auritus L. cyanellus L. gulosus L. macrochirus L. megtalotis L. microlophus L. punctatus Aficropterus salmoides
Etheostoma cholorosomum E. spectabile
Cichlasoma cvanoguttatum
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Common Name
Spotted gar
American eel
Gizzard shad
Central stoneroller Red shiner Blacktail shiner Speckled chub Sand shiner Mimic shiner Bullhead minnow
Smallmouth buffalo Gray redhorse
Mexican tetra
Black bullhead Yellow bullhead Channel catfish Flathead catfish
Western mosquitofish Sailfin molly
Redbreast sunfish Green sunfish Warmouth Bluegill sunfish Longear sunfish Redear sunfish Spotted sunfish Largemouth bass
Bluntnose darter Orangethroat darter
Rio Grande cichlid
Table3. Physicochemical data for 1996 and 1997, San Antonio River.
Site Number Date pH S. Cond DO (mg/l) Temperature (C) (Ilmhoslcm)
1 1-3-97 8.4 726 8.2 19.9 9-10-97 8.1 957 7.0 28.7
2 9-9-97 7.4 1023 6.5 28.4 11-1-97 8.0 792 8.1 23.0
4 9-10-97 8.4 825 7.0 29.2 11-1-97 8.6 842 8.1 22.7
5 10-22-97 7.8 660 7.8 21.5 11-1-97 7.9 825 7.5 22.3
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... - -_._---_._--------
Table 4. Flow data for microhabitats on San Antonio River for sites 1,2,4 and 5 during summer 1997.
Microhabitat Site I 9-10-97 Site 2 9-9-97 Site 4 9-10-97 Site 5 10-22-97 Code ~th Flow DeEth Flow DeEth Flow ~th Flow
I 3.7 0.8 NA NA 3.0 0.2 NA NA 2 4.0 0.7 NA NA 3.0 0.5 NA NA 3 3.5 0.4 NA NA 4.0 0.1 NA NA 4 2.5 0.4 NA NA 2.5 0.3 NA NA 5 3.0 0.7 NA NA 2.0 0.2 NA NA 6 2.5 0.2 NA NA 1.5 0.1 NA NA 7 2.5 0.5 NA NA 1.0 0.4 NA NA 8 3.0 0.6 NA NA 2.0 0.2 NA NA 9 2.5 0.2 NA NA 3.0 0.2 NA NA 10 1.7 0.6 NA NA 3.5 0.3 NA NA 11 2.7 0.6 NA NA 3.0 0.0 NA NA 12 2.5 0.6 NA NA D D NA NA 13 2.5 0.9 NA NA 3.5 0.5 NA NA 14 3.0 0.8 NA NA NA NA 15 3.5 1.0 NA NA NA NA 16 1.5 0.3 NA NA NA NA 17 3.5 0.5 NA NA NA NA 18 3.0 0.0 NA NA NA NA 19 3.5 0.6 NA NA NA NA 20 3.0 0.3 NA NA NA NA 21 1.5 0.7 NA NA NA NA 22 1.0 0.3 NA NA NA NA 23 4.0 0.2 NA NA NA NA 24 2.5 0.6 NA NA NA NA 25 NA NA NA NA
Depth is in feet and flow is feet/sec. The character W reflects a washed out microhabitat. The character D reflects to deep to measure.
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Table 5. Flow data for microhabitats on San Antonio River for sites 1,2,4 and 5 during winter 1997.
Microhabitat Site I 1-3-97 Site 2 11-1-97 Site 4 11-1-97 Site 5 11-1-97 Code Depth Flow DeEth Flow Depth Flow Depth Flow
I NA NA 4 0.8 4.0 2.0 3.0 0.1 2 NA NA 3 0.5 4.0 0.0 3.2 0.3 3 NA NA 3.5 0.1 4.0 0.0 4.0 0.2 4 NA NA 1.5 0.0 3.0 0.9 W W 5 NA NA 2.8 0.0 2.0 0.6 4.5 0.2 6 NA NA 3.5 0.2 3.0 1.7 5.0 0.3 7 NA NA 3.0 0.5 2.0 1.8 1.7 0.2 8 NA NA 2.6 0.3 2.7 1.3 3.5 0.8 9 NA NA 3.2 0.6 2.0 0.8 4.5 1.3 JO NA NA 1.5 0.1 3.5 1.3 1.5 0.3 II NA NA 1.0 0.4 2.0 0.0 4.5 I.J 12 NA NA 4.0 0.8 w w 2.0 0.7 13 NA NA 2.6 0.6 3.5 1.0 3.0 2.2 14 NA NA 3.2 0.6 2.5 1.8 4.5 0.3 15 NA NA 3.0 0.7 1.7 0.9 16 NA NA 2.0 0.6 5.0 0.8 17 NA NA 6.0 0.0 18 NA NA 2.2 I.J 19 NA NA 3.0 2.0 20 NA NA 2.0 0.5 21 NA NA 22 NA NA 23 NA NA 24 NA NA 25 NA NA
Depth is in feet and flow is feet/sec. The character W reflects a washed out microhabitat. The character D reflects to deep to measure.
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5.0 RECOMMENDATIONS AND CONCLUSIONS
The data that was collected in this study will be incorporated with hydrologic and bathymetric data obtained by TWDB personnel and used in their MAT model. The MAT study reach model involves analysis of biological data from microhabitats at different flows, especially the distribution offish within those microhabitats at different flows, during summer and winter.
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6.0 REFERENCES
Arbingast, S. A., L. G. Kennamer, R. H. Ryan, 1. R. Buchanan, W. L. Hezlep, L. T. Ellis, T. G. Jordan, C. T. Granger and C. P. Zlatkovich. 1976. Atlas of Texas. Bur. of Bus. Research, Dniv. of Texas. Austin. Texas. 179 p.
Bauer, J., R. Frye and B. Spain. 1991. A natural resource survey for proposed reservoir sites and selected stream segments in Texas. Contract Rpt. #1756. TWDB. TPWD, Austin, TX. pp. 56-57.
Bayer, C. W., 1. R. Davis, S. R. Twidwell, R. Kleinsasser, G. Linam, K. Mayes and E. Hornig. 1992. An assessment ofleast disturbed streams (Draft). TWC, TPWD and USEPA Reg. VI. 406 p.
HDR Engineering, Inc. 1994. Trans-Texas Water Program - West Central Study Area Phase I Interim Rept. Vol. 2. SARA, SAWS, EUWD, GBRA, LCRA, BMWD, NRA and TWDB. 548 pp.
Jennings, M., D. Ockerman and D. Brown. Multidimensional hydraulic measurement and modeling for habitat assessment, Guadalupe River, Texas. United States Geological Survey. Unpublished.
Karr, J., K. D. Fausch, P. L. Angermeier, P. R. Yant, and I. 1. Schlosser. 1986. Assessing biological integrity in running waters a method and its rationale. Illinois Natural History Survey Publication 5, Champaign, Illinois.
Killebrew, F. C. 1991. Habitat characteristics and feeding ecology of Cagle' s map turtle (Graptemys cag/ei) within the proposed Cuero and Lindenau reservoir sites. Contract Rpt. #91-483-797. TWDB & TPWD. 15 p.
Linam, G. and R. Klinesasser. 1993. Draft trophic/tolerance designation of Texas fishes. Texas Parks and Wildlife Department, Austin, TX. 4 p.
Longley, G. 1997. IFIM - Phase I study, Guadalupe River. Edwards Aquifer Research and Data Center for Guadalupe-Blanco River Authority.
Longley, G., 1. Burch, K. Cox, and C. Thomas. 1998A. Microhabitat utilization and fish survey of the Guadalupe River. TWOB Contract No. 96-483-181.
Longley, G., K. Cox, 1. Burch, and C. Thomas. 1998A. Microhabitat utilization and fish survey of Cibolo Creek. TWOB Contract No. 96-483-181.
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Longley, G., K. Cox, G. Phillips and 1. Miller. 1996. Environmental study of proposed diversion sites g-10 and g-14 on the Guadalupe River. TWDB Contract No. 95-483-113.
Mathews, R. c., Jr. and Y. Bao. 1991. Alternative instream flow assessment methodologies for warmwater river systems. Proc. Warmwater Fisheries Symp.1. Scottsdale, Ariz. pp. 189-196.
Mathews, R. c., Jr. and 1. R. Tallent. 1996. Instream flow assessment for the proposed Sandies Creek Reservoir. Texas Water Development Board. 72pp +53 pp. Appendices.
Platkin, J. L., M. T Barbour, K. D. Porter, S. K. Gross and R. M. Hughes. 1989. Rapid bioassessment protocols for use in streams and rivers: Benthic macroinvertebrates and fish. EP Al444/4-89-00 1.
Stalnaker, C. B., L. Lamb, 1. Henriksen, K. Bovee and 1. Bartholow. 1995. The instream flow incremental methodology - A primer for IFIM. BioI. Rpt. 29. Nat. BioI. Service, USDI, Washington, DC 45 p.
Whiteside, B. G., T L. Arsuffi. 1993. An aquatic inventory of the proposed Cibolo and Goliad Reservoir sites. TWDB Contract No. (92-93) 1071.
Whiteside, B. G., 1. A. Findeisen and V. Castillo. 1995. Microhabitat utilization and fish survey of Cibolo Creek and the San Antonio River. TWDB Contract No. 94-483-812.
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7.0 APPENDICES
APPENDICES
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Appendix 1. Fish species code for bubble graphs.
Code Scientific Name
2
3
4
5
6
7
8
9
10
II
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
Anguilla rostrata
Lepisosteus sp.
Dorasoma cepedianum
Aslyanax mexicanus
Hybopsis aestivalis
Cyprinella venusta
Cyprinella lutrensis
Notropis straminells
Notropis valucellus
Pimephales vigilax
Campostoma anomalum
Ictiobus bubaluslCyprinus carpio
Moxostoma congestum
Minytrema melanops
Ictalurus sp.
Pylodictis olivaris
Ameirus natalis
Fundulus notatus
Gambusia affinis
Poecilia latipinna
Menidia beryllina
Micrapterus punctlllatlls
Erimyzin oblongus
Micropterus treculi
Micrapterus salmoides
Lepomis gulosus
Lepomis cyanellus
Lepomis allritlls
Lepomis punctatus
Lepomis micralophus
Lepomis macrochirus
Lepomis megalotis
Pomoxis annularis
Pamoxis nigramaculatus
Percina macralepida
Etheostoma spectabile
Cichlasoma cyonoguttatum
Mugil cephalus
Common Name
American eel
Spotted/Longnose gar
Gizzard shad
Mexican tetra
Speckled chub
Blacktail shiner
Red shiner
Sand shiner
Mimic shiner
Bullhead minnow
Central stoneroller
Smallmouth buffalo/Common carp
Gray redhorse
Spotted sucker
Channe1lBlue catfish
Flathead catfish
YeHow bullhead
Blackstripe topminnow
Western mosquitofish
Sailfin molly
Inland sil verside
Spotted bass
Creek chubsucker
Guadalupe bass
Largemouth bass
Warmouth
Green sunfish
Redbreast sunfish
Spotted sunfish
Redear sunfish
Bluegill
Longear sunfish
White crappie
Black crappie
Bigsca1e logperch
Orangcthroat darter
Rio Grande cichlid
Striped mullet
31
Appendix I. Microhabitat code for bubble graphs.
Individual Graphs Code Microhabitat 1 Pool 2 Chute 3 Rapid 4 Pool - Root Wad 5 Edgewater 6 Run 7 Pool - Undercut Bank 8 Riffle - Bank Snag 9 Backwater 10 Riffle 11 Riffle - Debris dam 12 Riffle - Snag complex 13 Riffle - Channel snag 14 Eddy pool 15 Glide 16 Run - -Root Wad 17 Pool - Bank Snag 18 Pool - Undercut Bank 19 Pool - Snag Complex 20 Pool - Channel Snag 21 Pool - Debris Dam 22 Run - Debris Dam 23 Run - Bank Snag
24 Run - Channel Snag 25 Backwater - Channel Snag
32
o 12 3 4 567 8 91011121314151617181920212223242526
Microhabitat Code
Appendix 2. Site 1 at winter medium flow, Jan. 3, 1997.
33
38 37 36 35 34 33 32 31 30 29 28 27 26 25 24
Q) 23 "022 o 21 U 20 Ul 19 .~ 18 ~ 17 0.16
C/) 15 14 13 12 11 10
9 8 7 6 5 4 3 2 1 o
~ ~
u u u u
u U
--u- v
u ::: u u
U v v v
U
u :: u v
U v U v
U
v ~ .n v
-::aCa v
: .. .:.. ~
~ ::: v v v v v
u U U U
v v U
:: ~ :: :: v u u u
u U U
u v u u
• • v U v
::: IAv v v :.:.v v
v -v u v
u u v
n n n n ....... :: ~aCa .. .:.. u ~ • .:.
:: :: :: v v v v v
.n .a:a n . ,.,. v v u
'( ~ V U
I I I I
U·U U ~
:: :: u ~ ::
U -u
u U U U ·U
U U U ~ ~
v
u ~ u v ·U
U U U U ~ ;..
u v ~ ~ ~
U U U U ·U
v v V \F
·U ~ ;.. v u
~ ~
U U U v ·v
v U U \F
~ ~ ~ ~ ;; u :: ::
u ·U
v U v u- -v
:: ~ ~ u ::
.;;.;.~ U
-= r--aCa~~-1\ '--.. .:..: .. _y I~
u :: :: I • ., '--
v v v V ·v
u U U v -u-
~ ~
v ;;. v v v U ·u
v v u u
• n::: n
i-~ I--
u ~..-.a u
U~._ .. u I--
v V v i-v :: v v i-
V ~ V U u
:.a:a ~ -V
w; .. .... '( V U U ~ I I T T I
o 1 2 3 4 5 6 7 8 91011121314151617181920212223242526
Microhabitat Code
Appendix 2. Site 1 at summer high flow, Sept. 10, 1997.
34
38 37 36 35 34 33 32 31 30 29 28 27 26 25 24
Q) 23 "022 o 21 U 20 (/) 19 .~ 18 ~ 17 0.16
C/') 15 14 13 12 11 10
9 8 7 6 5 4 3 2 1 o
v v -v .,. v
-v v ;; ;:. n v v v v v
V V V V v
-v v Ie:· ~
-= n
v v
V v
v
v V ;; :' n v v V v v
V U vv v
v ::: ;:. ;:. n v v v v
V V V U" v
::: ::: .,- v
v v ::: ::: n V V U v v
v -v v
v v ;:. ::: n V V V V v
-v -v v ~ n v v ;:. ;:. u v v v v
V U -v U" V
n n ;;;; V
V V V v
-v v -u v v
., --v -v v
v v n
v v ;:: --v v
n v v
" u v V
V
n V V
V v ::. -v '{ I I I I I I I
o 1 2 3 4 5 6 7 8 91011121314151617181920212223242526
Microhabitat Code
Appendix 2. Site 2 at winter medium flow, Nov. 1, 1997.
35
38.-~'-r-(~-.-,~~.-.-~J-.-.~-r~'-'-'-~~~~ 37;-~+-~~~-+~~~+-~~-4-+~~4-+-+-~~-+~ 36;-~+-~(~~-+-~~4-+-~~-4-+~~4-+-+-~~-+~ 351-~+-~~-+-+~~4-+-~~-4-+~~4-+-+-~-4-+~ 34;-~+-~~-+-+~~4-+-~~-+-+~~4-+-+-~-4-+~ 334-~+-~~_+-+-~~4-+-
321-~+-~~-+-+~~4-+-311-~+-~~-+-+~~4-+ 304-~+-~~_+-+~~4-+-
291-~+-~~-+-+~~4-+-281-~+-~~-+-+~ 274-~+-~~_+-+~
264-~+-~~-+-+-o 251-~+-~~-+-+~~4-+-~~-4-+~~4-+-+-~-4-+~ 244-~+-~~-+-+~~4-+-~~-4-+~~4-+-+-~-4-+~
~234-~+-~~_+-+~~4-+-~~-+-+~~4-+-+-~-+-+~
u221-~+-~~-+-+~~4-+-~~-+-+~~4-+-+-~-+-+~ °214-~+-~~-+-+~~4-+-~~-4-+~~4-+-+-~-4-+~ U204-~+-~~_+-+~~4-+-~~-+-+~~4-+-+-~-+-+~ ~191-~+-~~-+-+~~4-+-~~-+-+~~4-+-+-~-+-+~ .~ 1 8 4--{)-+----,f-O-+_+_ ~ 17 4-~+-~~_+ 0..16 4-~+-~~--l-i en 15 4-~+-~~-+
14 -+--{)-+--If-O-+_+_ 13 -+~~~+-~ 121-~+-114-~+-1 04-~+-~~_+--, 94--{)-i---1f-O-+-84-~+-~~-74-~+-~~-64-~+-~~-
5 -I--O--+-f-O-+-4 4-~+-~~_+-' 34-~+-~~_+-+~~4-+-~~-+-+~~4-+-+-~-+-+~
21-~+-~~-+-+~~4-+-~~-+-+~~4-+-+-~-+-+~ 1--1-~+-~~-+-+~~4-+-~~-+-+~~4-+-+-~-4-+~ O--l-4-+-~~-+-+~~4-+-~~-+-+~~4-+-~~-4-+~
o 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 192021 2223242526
Microhabitat Code
Appendix 2. Site 2 at summer high flow, Sept. 9, 1997.
36
38 37 36 35 34 33 32 31 30 29 28 27 26 25 24
Q) 23 "022 021 (,) 20 II) 19 .~ 18 ~ 17 0.16 en 15
14 13 12 11 10
9 8 7 6 5 4 3 2 1 o
" " " ~ ~ ~
v u u ~ " v v v v v V V V
u v u V v -v -v v
"V ~~ " ::: ::: ::: " " " ::: "
v ::: v v v v v v u u v
v v v v u V -v-
~ ~ ~ ~ ~ ~ ~ :::
;:: ;:: " ;:: " v ;:: v
v v v u u u u v
"V" "V u v v -v -v v
::: " u " v ::: v
v v v u v V V V
V V V V v -v v-v
u v ;:: v " u :: v
u v u u u u v v
v v v v v v v v
;:: " " " " ~ ~ "
u v v v v v v v
u v v v v v v v
" ~~;;v -v -v
v ;:: " ;:: " .;. " ::
v v v v v V V v
"V" -v v v u v v v
v ::: " ::: " .;. " ::
v v v v v u v u
v u u v -v vv
v v " ;::
v
u u v v v v v v
v u u u v v v
" " " " " " ~ v v .;; u u v
v U U v
:: " ;: ::I .;. ::: :::
::r v v v
-v v -v
rI<, '-: '-: I I I I I I I I
o 1 2 3 4 5 6 7 8 91011121314151617181920212223242526
Microhabitat Code
Appendix 2. Site 4 at winter medium flow, Nov. 1, 1997.
37
38.-,-.-~r.~-fr-~~'-.-~~~~-'-.~'-.-r-~~-' 37;-~+-~~-fr~-~~+-+-t-()~~-+~~+-+-~~-4-+~ 36;-~+-~~-fr~~~+-+-~}-C~-+~~4-+-~~-4-+~ 35;-~+-~~~-fr~~~+-+-1~(~-+-+-r~+-+-r-~-+~ 344-+-+-~~-fr-~~~+-+-~)-C~-+~~4-+-~~-+-+~ 33 +-+-f-t-D--+-O 32 -+-+-+---1--0--+-..0 31 -+-+-+---1--0--+-.0 30 +-+-+--1'-O-+-1C 29-+-+-+--28-+-+-+-, 27-+-+--H 26-+-+-+-, 25-+-+--H 24-t-+-+
Q) 23+-+-+~22-+-+-+--~~-fr~~~+-+-~~~--+--r~+-+-+--~~-+~ °21+-+-+-~~-fr~~~+-+-~}-O~-+-r~+-+-+-~-+-+~ °20+-+-+-~~-fr~~~+-+-~~~-+~~+-+-+-~-+-+~ til 19 -+-+-+-: .~ 18-+-+~17+-+-0.16-+-1-en 15-+-+-
14-+-+-13+-+-+-c 12-+-+--H 11-+-+-+-' 1 0 -t-+-t-, 9+-+-8-+-+-7-1-l-6-+-1-5-+-+-4-t-+-t-' 3+-+-+-c 2-+-+-+ 1-+-+-+-' O+-+-+-
o 1 234 567 891011121314151617181920212223242526
Microhabitat Code
Appendix 2. Site 4 at summer high flow, Sept. 10, 1997.
38
38 37 36 35 34 33 32 31 30 29 28 27 26 25 24
CD 23 "'C 22 o 21 t) 20 III 19 .!!! 18 ~ 17 0.16
C/) 15 14 13 12 11 10
9 8 7 6 5 4 3 2 1 o
" " " " " " " v ""vv
v v v v
" ::: v v v " V V "
-v
v v v v v " v v v :: " :: " ::: ::: :::
" " " ::: ::: ;. ::: ::: v
v v v v v v v " v v v v v v v ·v -..,-
v v v :: " :: " " " "
" " l.:a" ::: ::: ;. ::: ::: v
v v 1 • .7v v v v v v v
v v v " " v v ·v.r
" " " " ::: v v v ::: v v " v v v
v v v v v " v v v -v
" " " ;. v v v ::: v v v v v v
v v v v v v v v v v
v v v v -v' ·v'
" " " " " " " v v v v v v v v v v
v v v v v v v v v v
" " -" " " " " " " " v v ! ....... :
v v laa " v
v v , • .7v v v 1.07 v v v
v v -..r-v--..rv -..r ·v 'v v
" " v " " v v v v v V V V V V
V
v v v,
".::. v
• =I v
" v ::: :::
v v v v
" V"
" " " v v v " v " " " " v v v v v v v v v v
'7 '7 v '7 v Y v Y '7 '7 \ \ I I t I I I I \
o 1 2 3 4 567 8 91011121314151617181920212223242526
Microhabitat Code
Appendix 2. Site 5 at winter medium flow, Nov. 1, 1997.
39
38 37 36 35 34 33 32 31 30 29 28 27 26 25 24
Q) 23 u 22 o 21
C,.) 20 VI 19 .!!! 18 l6 17 0.16 (J) 15
14 13 12 11 10
9 8 7 6 5 4 3 2 1 o
v
~
v
V
v
~
v
v
~
V
v
v
v
v
v
v
V
v
" v
v
V
v
V
~
v
v
v
v
~
v
v
I
:: v
V
v
v
v
~ v
v
v
v
v
v
v
V
v
v
v
v
n v
V
v
v
v
V
v
v
v
I
~ ~
v ~ ~ ~
:: v v V V
v v v V V
V V V v~ v
~ ~
~ v V
v v v v
v v v v 11 ~ ~ ~ ~ ~
~v v V V . .,~~ v v
OJ :W.:.. " \T
:: v :: :: :: v v v v v
" v
~ :: :: :: v v v V V
v v v v v
~ ~
V v :: :: :: v v v v v
~ v ~ .4ILA :a-:-. !.:a ., -: . .,:" I." v
v v v v
" " ~ ~ ~
v v v V V
V V V V V
,v " ~
I 1$11 ~
v v
v v~
~ " ~ " ~ .4ILA v v v v • ..Y v v '( v V
I I I I
~ ~ ~
v v v --v V V v OF
V V
~ ~ :: v
~ v :: v
V .~ v -v
~.:tIi.~ ·V
,:~ ~ :' _E ::
• f---
~ ~~~ I--.. ~ .. I--
:: v :: v
v v v -v
-" v
~ :: :: v
V V V V
v v ·V -v
~ n n
:: v v V
~p v V
.~
~ v . ., V
V v V OF
~ ~ n .:. V V V V
V V V
.:. v :: v
l.&':a:--O v ·V
r._yv ·V -v
n V n :::
v v v v
v v ~v -v
:: v ::: v
v v '( V
,- -, ,- T
o 1 234 5 6 7 8 91011121314151617181920212223242526
Microhabitat Code
Appendix 2. Site 5 at summer high flow, Oct. 22, 1997.
40
38.--~.-~~~~~-~-,~~~~~~-,~~~~~(~~~ 371-~+-r4~~~~~~~~~~-+~~~+-+-~~-+~ 361-~+-r4~~~~~~~~~~-+~~~+-+-~~-+~ 354-~+-~~~-o~~~~&-~~~-+-~~~+-~~-4~ 344-~+-~~~-o-~~~-o-D~~~~-+~~4-+-~~~~ 331-~+-r4~~-~~~~~~~~-+~~~+-+-~~-+~ 32~~+-~~-o~-~~~~~~~-+~-~4-+-+-~~-+~
311-~+-r4~-o~~~~~~~~-+~4r~+-+-~~-+~ 301-~+-~~~~~~~~~~~-+~~~+-+-~~-+~ 291-~+-~'114~~4r~~~1~~~-+~~~+-+-~~-+~ 28~~+-~~-o~~~~~~~~-+~~4-+-+-~~-+~
274--~+-~~~-o~1IHr~-o-~~~~-+4r~4-+-~~~~ 261-~+-~~~~4r~~~~~~-+~~~+-+-~~-+~ 25~~+-~~-o~~~~~~~~-+~~4-+-+-~~-+~ 24~~+-~~-o~~~~~~~~-+~~4-+-+-~~-+~
~231-~+-~~~~4r~~~~~~-+~~4-+-+-~~-+~ ~22~~+-~~~~4r~~~~~~-+~~~+-+-~~-+~ o 21 +--{)-t--1I-O
C,.) 20 -+--0-+--+--0-Ul 19 ~-(}-.f--II-(} .~ 18 -+-.Q--I--+~ ~ 17 +-~t--1I--O--': 0. 16 -+--o-~ en 1 5 -I---(}-f---lj
14 -+--o-t-+ 13+-~+--1 2 -+-111 ... -1---.
11 -+-:O:-l--f 101-~+--9~~+-8 -+-.Q--I--7-+--o-\-J 6 -+--O-j-.: 5 -I---(}-.f--I~~-o.O:--{] 4 ~~~~~~4--(}-+-~~-+-+~~+-~
3 2 1+-~+-~~~~~~~~~~~-+~~4-+-+-~~-+~ 0+-+-+-~~-+-+-r~+-+-~~-+-+~~4-+-+-~-+-+~
o 1 234 5 6 7 891011121314151617181920212223242526
Microhabitat Code
Appendix 2. Site 1 at medium f10VIIS, July 15,1994 and Jan. 3,1997.
41
38 37 36 35 34 33 32 31 30 29 28 27 26 25 24
Q) 23 "022 o 21
C,,) 20 U) 19 .!!! 18 ~17 0.16
C/') 15 14 13 12 11 10
9 8 7 6 5 4 3 2 1 o
-I'l. n
n v
-I'l. n V
~ n
v
" n v
n
::: v
n
n V
n
n
n v
n
n
::: v
n
n v
n
n v
n
n v
1
n
n
n
::: n
n
n
;:; n
n ;::.. ';"
n
::: " n
::: JL U ~
v
.. ~ •• •• n
n
n
n
~ ... n
n
n . ;. .. ~,. V
I
n n
n nU
n n~ v ::: v
J\. _n.
n~ ~ ::: ;:: ;:; ~
" " " n n
v ;::'..Jj r:::~ n .: .. :1' n n
:. " n n
n n n
:: n n
v ::: r::: n ,.;~;:;. n n~
~~I .~. n
';"1 n ,J v ..,
n n.
n il'
" n
~ J;:; 111 -(}o
n V , I , I ,
n n n n n n
n n n n n ;. n n n n n v v v v ~v -v
~~~ ~ n n
n n n n n ;. n n .~. .~. n v v .. ~,. ..,~, v -v
;:; ~ n n n n
n n n n n ;. OJ
n n n n
v v~ v -v
~ n n
n n n n n ;. n n n n n ~ v ~v v v
n
n n n n n ;. n n n n n ::: v ::: v ::: ::: OJ
n n n n n n
n n n n n ;;, v ::: ::: ::: r:::
OJ
.;. n .;.
1~' " ~ -.~,.~!~ i~t .~. ~-:::.:::. ';" ';"
v " v v -v OJ
n n n n n n
""I n n
~~ ~ n ;;, .... OJ
n
• n:::l £Il n
v -:::J Il ' ~ -v
n n n n
n n .L n n ;;, ::: ::: • ::: n ;;, n .;. n n .~ . ~-.~,. n n ';" n ': v v v ': v
I I I 1 , I T
o 1 2 3 4 5 6 7 8 91011121314151617181920212223242526
Microhabitat Code
Appendix 2. Site 1 at high flows, Dec. 15, 1993 and Sept. 10, 1997.
42
38.-~.-,-(r.~-.-~~'-~~~~-.-r~~~~~~~~ 37~~+-~~~-+~~1--o-~1~~-+-+~4-+-+-~~-+~ 36~~+-~~~-+~~1-~~~~-+-+~4-+-+-~~-+~ 35~~+-~~~-+~~4-~~~~-+-+~4-+-+-~~-+~ 34~~+-r-(~~-+~~~~~~~-+-+~1-+-+-~~-+~ 33~~+-~~~-+~~~~~~~-+-+~4-+-+-~~-+~ 32 ~~+--h<J..-t~-31 -+--~+-""'1a-1~-30~~+-~~~-29~~+-~~~-+~~4-~~~~-+-+~4-+-+-~~-+~ 28-+--~+-~~~-+~4r~~~~~-+-+~-+--+-+-~~-+~
27-+--~+-~~~-+~4r~~~~~-+-+~-+--+-+-~~-+~
26~~+-~~~-+~~~~~~~-+-+~-+--+-+-~~-+~ 254-~+-~~~-+~~4-~~~~-+-+~4-+-+-~~-+~ 24-+--~+-r-1~~-+~~~~~~~-+-+~-+--+-+-~~-+~
m23~-o-+-~~~-+~~~~~~~-+-+~-+--+-+-~~-+~ u224-~+-~~~-+~~4-~~~~-+-+~-+--+-+-~~-+~ °21-+--~+-~~~-+~4r~~~~~-+-+~-+--+-+-~~-+~ U20~~+-~~~-+~~~~~~~-+-+~-+--+-+-~~-+~ Ul 194-~+-~~~. ~ 1 8 -+---(}--+-I--{)f~ 17 -holrt--t Q. 16 ~.1.c.l...-en 1 5 -I-'"!JE-+-
14 -+--D-f-+--<l-' 13 -I--G-+--4-{}-' 12 -I--G-+---l-{}-11 -I--{)-+--4-{}-1 10-+--~+-~~~-+~~-I-~~~
9~~+-r-(~~-8-+--~+-7-+--~+-
6~~+-5 4--O-+-~~~"""; 4 -+---(}--+--1 3~~+-2-+---o-+-1 4-~+-~~...3I(j~ 04-~+-~~~-+-r-r4-+-+-~~-+-+~4-+-+-~~-+-1
o 1 2 3 4 5 6 7 8 91011121314151617181920212223242526
Microhabitat Code
Appendix 2_ Site 2 medium flows, July 14,1994 and Nov. 1, 1997_
43
38 37 36 35 34 33 32 31 30 29 28 27 26 25 24
Q) 23 "022 o 21 U 20 U) 19 .~ 18 ~ 17 0.16
(f) 15 14 13 12 11 10
9 8 7 6 5 4 3 2 1 o
n n " n " "
n
n .~. n n ::: ::: ;. n
n ~~, v v v
n n n n
n n n n n ;.. ::: ::: n n n n ::: ::: n
V V v
n n n n .v. ::: ::: v v v
n n n
;. .:. n .:. n n
n t:...
n ';,." n n ":..' ::: ::: n n n ::: n ::: ::: vv
~ ./\ v n
n I.:' " " .. :: .. n n n .:. n
::: I'::' n :::~::: ::: ::: ~~, v
~ -;;:. v v v v ::: v v :::
" ';..' n n " n " n n n
n n n n n n n n n n V V V V v ::: v v v
n n n n n n ;::' ~ ~ n
" n n n n n n n n n v .:::.. n .. ::: .. n
V
-.::t' ":1' v v
-v ___
n n n "\J n n n n n
n ... ... ~.
n .:. n n
n I • .. ::: ':..' v.'::..
I • .. v " v .... ,.
n n n" n n n n n
::: .'::.. n ~ n .:::..::: ::: J\.
.. ~. n
I" "=" n " " n n n n n
::: :::
~~ ;.. n n
~ • ..t1 ;. v v
" An n
n ~n n ~ V V v
n " n n n n
n n n " n n n n n
::: ;::. n n n n n n n ,~. v v -v v v
\ \ 1 I I I \ \ \ I
o 1 2 3 4 5 6 7 8 91011121314151617181920212223242526
Microhabitat Code
Appendix 2. Site 2 at high flows, Jan. 7, 1994 and Sept. 9, 1997.
44
O uuu~ ~ uu
I I I I 111 I I 1 I
o 1 2 3 4 5 6 7 8 91011121314151617181920212223242526
Microhabitat Code
Appendix 2. Site 4 medium floVIIS, July 14, 1994 and Nov. 1, 1997.
45
38 37 36 35 34 33 32 31 30 29 28 27 26 25 24
Q) 23 "022 o 21
C,.) 20 I/) 19 .!!! 18 ~ 17 0.16 en 15
14 13 12 11 10
9 8 7 6 5 4 3 2 1 o
~ ~ " " " v
" " " " " h
" " " " " ~ ~ h
~ ::: ::: ::: v v v v
v v v v v v ~ ~ "
" " " " " " " ~
" " " " " " ~ h ~
::: ::: ~ .. "V .... V .. ::: .. ~ .. ::: v v v v ... ~ .. ~. v 'II':. v v
" " " " " " " " " "
~ " " " ~ ~ h
V
~ ::: ::: .. ... ::: ::: .. ~.. v
v v v J IV v",,:,, v
" " ,,'III ,II' " " " " ::: ~ • " " " " " ~ " v V V V V V
" n n n n n
:: " " " " " ~ " ~
~ v v v V
h h V
~ . : .. n .. : .. V ~':. " ,,~:... n n " ~ v v :: .q v :: :: n • • ~ .. " " • • 111 I J I .II: ..
'II ,II' .:, ~ r ~ ~':. V
.n : " Id
;.. :: V
n ~t...vv
n '" ~:"." ~ V
h h
V V V
" n " "
" ;:a .:.. ~ ~
v ':.J .. ~, V V
" ::: " n " " " ~ ~ ~
V ::: :: n n :: " :: :: " .:; .. " .::II. ~ ~:...
~ " n " 'w;:.,
V V V , V ~ I , 1 1 1 1 -I r 1
o 1 2 3 4 5 6 7 8 91011121314151617181920212223242526
Microhabitat Code
Appendix 2. Site 4 at high flows, Jan. 10, 1994 and Sept. 10, 1997.
46
Q) "0 o U Ul Q) '(3 Q) a. en
38 37 36 35 34 3
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9 8 7 6 5 4 3 2 1 0
~ ~ ~ ,.. ... ... n 1'\ ~ ~
~ ~ :: :: ~ ;:: ~ v
n
n
~ n ~ ~ ;. " n n n n n
~ ;. ~;';'nnn ;:: n ~
v -v -V-Vvvv v v v
n n n
~ ~ ~ ~ ;, " " " n ~ n
;. :: :: ~i:: -v n ;:: v v :: :: ~ ~
.~,.
n ~ ;. ~ " ;. n ~ ~ n n ~ v
~ :: ;, ;:. :: n n ;:: v ::: ::: ~
-V-V-Vvvv v v v ~ n
~ n n n n n n " " " " " v v v ~ ;. ;, n n n n n ~
-v v v v v v v
n n ~ ~ ~ ~ ." " " " " ::: ~ ;, I A " n n n " n
v -v ~ n
v ~ n
~ n n v v v v v v
:: '""",,~ " " " --"- t}~"n;: ;: n n
n n ;: ... :: ... :: .. v :: ::: n ' ~ ~~=,~JIIIII~" v :::
• ~ n n n n n n
v -v l;. ~ ;:: ;:: ... :: .. v ;: ::: n
n n ~ -/1. --f\ --''L'';''' ~ ~ ~ ~. ~.. n n n n n n v v
.~ ,,"" Itj I: v n ::: v v
• n n : =- ~Q 11 n .~ n n v I~·
:n I~ n
n v v
n ~ ~ .... =0 '" n n. n ~ :: :: .... J... .. .-:. " n n n
n ~ If I.::a.;:. -v ,;: ;: n n
~ ~ .. ,. 1-':' ;;.,
~ ~ ; ~ I I ,- ,- ,- T I I I I I I
o 1 2 3 4 5 6 7 8 91011121314151617181920212223242526
Microhabitat Code
Appendix 2. Site 5 at medium flows, July 13, 1994 and Nov. 1, 1997.
47
38 37 36 35 34 33 32 31 30 29 28 27 26 25 24
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Microhabitat Code
Appendix 2. Site 5 at high flows, Jan. 10, 1994 and Oct. 22, 1997.
48
Site 1 - Upstream View
Site 1 - Downstream View
Appendix 3. Representative photographs ofsamp\e sites.
49
Site 2 - Upstream View
Site 2 - Downstream View
Appendix 3. Representative photographs of sample sites.
50
Site 4 - Upstream View
Site 4 - Downstream View
Appendix 3. Representative photographs of sample sites.
51
Site 5 - Upstream View
Site 5 - Downstream View
Appendix 3. Representative photographs of sample sites.
52
Root Wad
Run
Appendix 4. Representative microhabitat photographs.
53
Undercut Bank
Bank Snag
Appendix 4. Representative microhabitat photographs.
54
Backwater
Snag Complex
Appendix 4. Representative microhabitat photographs.
55
Channel Snag
Eddy Pool
Appendix 4. Representative microhabitat photographs.
56
Pool-Root Wad
Pool-Bank Snag
Appendix 4. Representative microhabitat photographs.
57
Pool-Undercut Bank
Pool-Channel Snag
Appendix 4. Representative microhabitat photographs.
58
Run-Bank Snag
-
Appendix 4. Representative microhabitat photographs.
59