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 38. Data for fish and crayfish collected at sites on the Truckee River: Truckee River at Dead Ox Wash near Nixon, Nev. (site 19, fig. 1), October 5, 1993
[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 |
Resident | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Mean totala |
SD | Mean standardb |
SD | Mean | SD | |||||
| Reach A (sampled on September 30, 1993) | ||||||||||
| Catostomus platyrhynchus | mountain sucker |
2 |
79 |
3.5 |
52 |
21.2 |
3.8 |
3.6 |
50.0c |
Native |
| Catostomus tahoensis | Tahoe sucker |
39 |
63 |
28.7 |
51 |
23.8 |
5.2 |
12.1 |
17.9c |
Native |
| Gambusia sp. | mosquitofish |
1 |
40 |
-- |
32 |
-- |
0.7 |
-- |
0 |
Nonnative |
| Pacifastacus leniusculus | crayfish |
1 |
88 |
-- |
-- |
-- |
-- |
-- |
0 |
Native |
| Pimephales promelas | fathead minnow |
9 |
51 |
7.8 |
42 |
6.7 |
1.5 |
0.8 |
11.1c |
Nonnative |
| Richardsonius egregius | Lahontan redside |
15 |
37 |
6.2 |
31 |
4.7 |
0.6 |
0.3 |
0 |
Native |
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 Anchor worm.