Table from U.S. Survey Fact Sheet 122–97

 

Table 2. Type, trophic class, and relative abundance of native and nonnative fish species collected at fish community sampling sites in the Upper Colorado River Basin1

[Blue shading represents native species; tan shading represents nonnative species. I, invertivore; O, omnivore; H, herbivore; P, piscivore]

Fish type
(Common
names)
Scientific name
(Genus and species
 
Number of individuals at sampling sites2
Southern Rocky Mountains province
Trophic Class3
Baker A (1)4
Baker B (1)
Baker C (1)
French (2)
Blue (3)
Trout
Salmonidae
 
Brown trout Salmo trutta
I
81
47
73
 
2
Rainbow trout Onchorhynchus mykiss
I
 
 
 
 
 
Brook trout Salvelinus fontinalis
I
19
38
56
 
36
Cutthroat trout Onchorhynchus clarki
I
1
 
 
 
 
Kokanee salmon Onchorhynchus nerka
I
 
        
Mountain whitefish Prosopium williamsoni
I
 
 
 
 
 
Sculpin
Cottidae
 
 
 
 
 
 
Mottled sculpin Cottus bairdi
I
18
8
14
 
 
Sucker
Catostomidae
 
 
 
 
 
 
Longnose sucker Catostomus catostomus
O
2
  
1
 
 
White sucker Catostomus commersoni
O
  
 
 
 
 
Bluehead sucker Catostomus discobolus
O
 
 
 
 
 
Flannelmouth sucker Catostomus latipinnis
O
 
 
 
 
 
Minnow
Cyprinidae
 
 
 
 
 
 
Roundtail chub Gila robusta
H
 
 
 
 
 
Common carp Cyprinus carpio
O
 
 
 
 
 
Speckled dace Rhinichthys osculus
I
 
 
 
 
 
Longnose dace Rhinichthys cataractae
I
 
 
 
 
 
Fathead minnow Pimephales promelas
O
 
 
 
 
 
Sand shiner Notropis stramineus
O
 
 
 
 
 
Colorado squawfish Ptychocheilus lucius
P
 
 
 
 
 
Sunfish
Centrarchidae
 
 
 
 
 
 
Green sunfish Lepomis cyanellus
I
 
 
 
 
 
Largemouth bass Micropterus salmoides
P
 
 
 
 
 
Smallmouth bass Micropterus dolomieu
P
 
 
 
 
 
Catfish
Ictaluridae
 
 
 
 
 
 
Channel catfish Ictalurus punctatus
I
 
 
 
 
 
Total number of fish  
 
121
93
144
0
38
Number of species  
 
5
3
4
0
2

     1Tyus and others (1982).
     2Site numbers and names and colors correspond to site numbers in figure 1 and table 1.
     3Schrader (1989) and R.M. Goldstein (U.S. Geological Survey, oral commun., 1997).
     4Letters A, B, and C correspond to multiple-reach sampling sites.
     5Site 7 is hydrologically represented as a Southern Rocky Mountain province site.

 

Table 2. Type, trophic class, and relative abundance of native and nonnative fish species collected at fish community sampling sites in the Upper Colorado River Basin1—Continued

[Blue shading represents native species; tan shading represents nonnative species. I, invertivore; O, omnivore; H, herbivore; P, piscivore]

Fish type
(Common
names)
Scientific name
(Genus and species
 
Number of individuals at sampling sites2
Southern Rocky Mountains province
Trophic Class3
Gore A (4)
Gore B (4)
Gore C (4)
East (5)
Gunn32 (6)
GunnTun (7)5
Ridgway (8)
Dotsero (9)
Trout
Salmonidae
  
Brown trout Salmo trutta
I
137
142
65
100
12
51
5
13
Rainbow trout Onchorhynchus mykiss
I
67
22
23
3
16
65
20
4
Brook trout Salvelinus fontinalis
I
5
3
1
 
  
  
 
 
Cutthroat trout Onchorhynchus clarki
I
 
 
 
1
1
 
 
 
Kokanee salmon Onchorhynchus nerka
I
      
62
5
 
 
 
Mountain whitefish Prosopium williamsoni
I
 
 
 
 
 
 
 
18
Sculpin
Cottidae
 
 
 
 
 
 
 
 
 
Mottled sculpin Cottus bairdi
I
162
34
26
 
 
 
45
1
Sucker
Catostomidae
 
 
 
 
 
 
 
 
 
Longnose sucker Catostomus catostomus
O
 
 
 
1
107
 
 
7
White sucker Catostomus commersoni
O
 
 
 
 
8
 
10
71
Bluehead sucker Catostomus discobolus
O
 
 
 
 
 
 
11
7
Flannelmouth sucker Catostomus latipinnis
O
 
 
 
 
 
 
 
30
Minnow
Cyprinidae
 
 
 
 
 
 
 
 
 
Roundtail chub Gila robusta
H
 
 
 
 
 
 
 
 
Common carp Cyprinus carpio
O
 
 
 
 
 
 
 
 
Speckled dace Rhinichthys osculus
I
 
 
 
 
 
 
 
1
Longnose dace Rhinichthys cataractae
I
 
 
 
 
3
 
 
 
Fathead minnow Pimephales promelas
O
 
 
 
 
 
 
 
 
Sand shiner Notropis stramineus
O
 
 
 
 
 
 
 
 
Colorado squawfish Ptychocheilus lucius
P
 
 
 
 
 
 
 
 
Sunfish
Centrarchidae
 
 
 
 
 
 
 
 
 
Green sunfish Lepomis cyanellus
I
 
 
 
 
 
 
 
 
Largemouth bass Micropterus salmoides
P
 
 
 
 
 
 
 
 
Smallmouth bass Micropterus dolomieu
P
 
 
 
 
 
 
 
 
Catfish
Ictaluridae
 
 
 
 
 
 
 
 
 
Channel catfish Ictalurus punctatus
I
 
 
 
 
 
 
 
 
Total number of fish  
 
371
201
115
167
152
116
91
152
Number of species  
 
4
4
4
5
7
2
5
9

     1Tyus and others (1982).
     2Site numbers and names and colors correspond to site numbers in figure 1 and table 1.
     3Schrader (1989) and R.M. Goldstein (U.S. Geological Survey, oral commun., 1997).
     4Letters A, B, and C correspond to multiple-reach sampling sites.
     5Site 7 is hydrologically represented as a Southern Rocky Mountain province site.

 

Table 2. Type, trophic class, and relative abundance of native and nonnative fish species collected at fish community sampling sites in the Upper Colorado River Basin1—Continued

[Blue shading represents native species; tan shading represents nonnative species. I, invertivore; O, omnivore; H, herbivore; P, piscivore]

Fish type
(Common
names)
Scientific name
(Genus and species
 
Number of individuals at sampling sites2
Colorado Plateau province
Trophic Class3
Dry Fork (10)
Cameo (11)
Dry Cr A (12)
Dry Cr B (12)
Dry Cr C (12)
GunnGJ (13)
Reed (14)
State (15)
Trout
Salmonidae
  
Brown trout Salmo trutta
I
 
6
1
5
3
3
 
 
Rainbow trout Onchorhynchus mykiss
I
 
 
 
 
 
1
 
 
Brook trout Salvelinus fontinalis
I
 
 
 
 
 
 
 
 
Cutthroat trout Onchorhynchus clarki
I
 
 
 
 
 
 
 
 
Kokanee salmon Onchorhynchus nerka
I
 
 
 
 
 
 
 
 
Mountain whitefish Prosopium williamsoni
I
 
29
 
 
 
 
 
 
Sculpin
Cottidae
 
 
 
 
 
 
 
 
 
Mottled sculpin Cottus bairdi
I
 
3
3
 
 
 
 
 
Sucker
Catostomidae
 
 
 
 
 
 
 
 
 
Longnose sucker Catostomus catostomus
O
 
 
 
 
 
 
 
 
White sucker Catostomus commersoni
O
 
31
17
30
7
5
2
2
Bluehead sucker Catostomus discobolus
O
 
48
22
36
34
66
 
170
Flannelmouth sucker Catostomus latipinnis
O
 
100
18
42
48
39
21
99
Minnow
Cyprinidae
 
                
Roundtail chub Gila robusta
H
 
65
5
13
2
39
5
45
Common carp Cyprinus carpio
O
 
18
 
 
 
2
13
19
Speckled dace Rhinichthys osculus
I
 
2
46
31
94
5
 
21
Longnose dace Rhinichthys cataractae
I
 
 
 
 
 
 
 
 
Fathead minnow Pimephales promelas
O
 
 
17
5
 
2
3
 
Sand shiner Notropis stramineus
O
 
 
 
 
 
 
 
2
Colorado squawfish Ptychocheilus lucius
P
 
 
 
 
 
 
 
1
Sunfish
Centrarchidae
 
 
 
 
 
 
 
 
 
Green sunfish Lepomis cyanellus
I
 
1
6
2
 
 
 
6
Largemouth bass Micropterus salmoides
P
 
3
 
 
 
 
 
3
Smallmouth bass Micropterus dolomieu
P
 
 
 
 
 
 
 
3
Catfish
Ictaluridae
 
 
 
 
 
 
 
 
 
Channel catfish Ictalurus punctatus
I
 
 
 
 
 
 
 
18
Total number of fish  
 
0
306
135
164
188
162
44
389
Number of species    
0
11
9
8
6
9
5
12

     1Tyus and others (1982).
     2Site numbers and names and colors correspond to site numbers in figure 1 and table 1.
     3Schrader (1989) and R.M. Goldstein (U.S. Geological Survey, oral commun., 1997).
     4Letters A, B, and C correspond to multiple-reach sampling sites.
     5Site 7 is hydrologically represented as a Southern Rocky Mountain province site.

For true color representation, please see the pdf file for this fact sheet: FS–122–97.pdf
(Requires Adobe Acrobat Reader)

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