USGS Open-File Report 02-012
Physical Data and Biological Data for Algae, Aquatic Invertebrates, and Fish from Selected Reaches on the Carson and Truckee Rivers, Nevada and California, 1993-97
Table 33. Data fish and crayfish collected at sites on the Carson River: Carson River near Fort Churchill, Nev. (site 9, fig. 1), 1993-1996
[Abbreviations and symbols: N, number; SD, standard deviation; --, not determined]
| Scientific name (Genus species) |
Common name | N | Length, in millimeters | Weight, in grams | Percent abnormal |
||||
|---|---|---|---|---|---|---|---|---|---|
| aMean total |
SD | bMean standard |
SD | Mean | SD | ||||
| Reach A (61 m sampled on October 7, 1993) | |||||||||
| Catostomus tahoensis | Tahoe sucker | 9 | 64 | 10.4 | 53 | 7.9 | 2.8 | 1.2 | 10.0f |
| Cyprinus carpio | common carp | 65 | 176 | 153 | 140 | 124 | 244 | 400 | 0 |
| Morone chrysops | white bass | 1 | 152 |
-- |
122 |
-- |
47.0 |
-- |
0 |
| Pimephales promelas | fathead minnow | 16 | 53 | 6.7 | 44 | 6.3 | 1.6 | 0.7 | 0 |
| Rhinichthys osculus | speckled dace | 11 | 52 | 6.1 | 43 | 5.1 | 1.5 | 0.5 | 0 |
| Richardsonius egregius | Lahontan redside | 449 | 63 | 9.3 | 51 | 7.6 | 2.2 | 0.9 | 0.9f |
| Reach B (91 m sampled on October 7, 1993) | |||||||||
| Catostomus platyrhynchus | mountain sucker | 44 | 94 | 26.7 | 79 | 23.0 | 10.4 | 7.1 | 6.8e |
| Catostomus tahoensis | Tahoe sucker | 78 | 79 | 22.5 | 64 | 19.4 | 6.2 | 6.6 | 2.6e, f |
| Cyprinus carpio | common carp | 43 | 84 | 10.4 | 66 | 8.1 | 9.3 | 3.7 | 0 |
| Lepomis cyanellus | green sunfish | 2 | 72 | 14.1 | 58 | 10.6 | 6.2 | 3.4 | 0 |
| Pimephales promelas | fathead minnow | 69 | 52 | 6.6 | 42 | 5.4 | 1.3 | 0.6 | 0 |
| Orthodon microlepidotus | Sacramento blackfish | 5 | 54 | 6.3 | 41 | 6.4 | 1.7 | 0.5 | 0 |
| Rhinichthys osculus | speckled dace | 86 | 57 | 7.4 | 48 | 6.8 | 2.0 | 1.0 | 0 |
| Richardsonius egregius | Lahontan redside | 168 | 64 | 9.9 | 51 | 8.0 | 2.4 | 0.8 | 1.2f |
| Reach B (91 m sampled on August 1, 1994) | |||||||||
| Catostomus platyrhynchus | mountain sucker | 17 | 69 | 19.3 | 57 | 12.7 | 3.2 | 2.2 | 18.0e, f |
| Catostomus tahoensis | Tahoe sucker | 10 | 69 | 46.4 | 56 | 38.4 | 7.4 | 14.3 | 20.0e |
| Cyprinus carpio | common carp | 13 | 273 | 158 | 217 | 131 | 468 | 526 | 31.0e, f |
| Gambusia sp. | mosquitofish | 1 | 40 |
-- |
35 |
-- |
0.8 |
-- |
0 |
| Orthodon microlepidotus | Sacramento blackfish | 7 | 81 | 11.2 | 64 | 9.6 | 5.3 | 2.6 | 14.0e |
| Pimephales promelas | fathead minnow | 57 | 38 | 5.6 | 32 | 5.1 | 0.6 | 0.3 | 1.8e |
| Rhinichthys osculus | speckled dace | 97 | 52 | 11.9 | 42 | 9.8 | 1.4 | 0.8 | 1.0e |
| Reach B (91 m sampled on September 28, 1995) | |||||||||
| Catostomus platyrhynchus | mountain sucker | 29 | 106 | 17.9 | 87 | 14.6 | 10.6 | 6.0 | 10.0e |
| Catostomus tahoensis | Tahoe sucker | 21 | 122 | 54.7 | 99 | 44.8 | 28.9 | 45.3 | 28.6e |
| Cyprinus carpio | common carp | 202 | 134 | 107 | 113 | 111 | 166 | 468 | 4.0e |
| Lepomis cyanellus | green sunfish | 11 | 69 | 21.2 | 55 | 17.1 | 7.7 | 9.4 | 0 |
| Micropterus dolomieu | smallmouth bass | 2 | 158 | 36.1 | 127 | 31.1 | 65.8 | 51.0 | 0 |
| Orthodon microlepidotus | Sacramento blackfish | 19 | 61 | 7.0 | 49 | 7.6 | 2.2 | 0.8 | 0 |
| Pimephales promelas | fathead minnow | 18 | 49 | 5.2 | 40 | 4.4 | 1.2 | 0.3 | 0 |
| Rhinichthys osculus | speckled dace | 30 | 56 | 5.9 | 46 | 4.8 | 1.9 | 0.7 | 0 |
| Richardsonius egregius | Lahontan redside | 3 | 68 | 2.9 | 55 | 2.6 | 3.4 | 0.5 | 0 |
| Reach B (91 m sampled on October 10, 1996) at sites on | |||||||||
| Catostomus platyrhynchus | mountain sucker | 68 | 96 | 10.5 | 83 | 9.4 | 9.3 | 3.5 | 1.5f |
| Catostomus tahoensis | Tahoe sucker | 20 | 136 | 31.9 | 114 | 26.3 | 30.4 | 21.2 | 40e, f |
| Cyprinus carpio | common carp | 11 | 239 | 170 | 190 | 137 | 451 | 717 | 18c |
| Micropterus dolomieu | smallmouth bass | 1 | 57 | -- | 49 | -- | 2.9 | -- | 0 |
| Morone chrysops | white bass | 1 | 137 | -- | 108 | -- | 34.8 | -- | 0 |
| Orthodon microlepidotus | Sacramento blackfish | 4 | 105 | 11.8 | 3 | 12.7 | 9.1 | 1.9 | 0 |
| Lepomis cyanellus | green sunfish | 7 | 83 | 20.7 | 69 | 17.8 | 11.8 | 10.1 | 0 |
| Perca flavescens | yellow perch | 1 | 96 |
-- |
83 |
-- |
8.1 |
-- |
0 |
| Pimephales promelas | fathead minnow | 78 | 54 | 5.4 | 43 | 4.2 | 1.6 | 0.5 | 1.3f |
| Rhinichthys osculus | speckled dace | 98 | 68 | 5.1 | 57 | 4.9 | 3.1 | 0.8 | 0 |
| Richardsonius egregius | Lahontan redside | 5 | 88 | 5.5 | 72 | 5.6 | 7.2 | 2.1 | 0 |
| Reach C (122 m sampled on October 7, 1993) | |||||||||
| Catostomus platyrhynchus | mountain sucker | 29 | 67 | 19.9 | 54 | 16.9 | 3.7 | 3.8 | 0 |
| Catostomus tahoensis | Tahoe sucker | 108 | 72 | 15.1 | 58 | 12.2 | 4.0 | 4.5 | 1.0e |
| Cyprinus carpio | common carp | 72 | 102 | 71.5 | 80 | 57.3 | 47.0 | 149 | 0 |
| Lepomis cyanellus | green sunfish | 5 | 81 | 12.0 | 66 | 10.7 | 9.9 | 5.3 | 0 |
| Pimephales promelas | fathead minnow | 30 | 54 | 6.7 | 44 | 5.6 | 1.6 | 0.6 | 0 |
| Rhinichthys osculus | speckled dace | 48 | 54 | 6.3 | 45 | 4.9 | 1.7 | 0.6 | 0 |
| Richardsonius egregius | Lahontan redside | 162 | 65 | 9.4 | 51 | 7.3 | 2.5 | 1.0 | 0 |
a For fish, total length, measured from tip of snout to end of
caudal (tail) fin; for crayfish, total length measured from tip of rostrum to posterior edge of telson.
b Standard length measured from snout to end of backbone in the caudal peduncle.
c Fin erosion. Mild fin-erosion is considered part of the normal "wear and
tear" on fish. The type of fin erosion considered an abnormality is more severe and indicates fungal or bacterial
infections, various types of stress, and poor overall health (Meador and others, 1993).
d Tumor.
e Lesion
f Anchor worm.