Data Series 286
U.S. GEOLOGICAL SURVEY
Data Series 286
Table 3. Summary of monthly median concentrations of organic chemical compounds in common carp (Cyprinus carpio) from Las Vegas Bay and Overton Arm, Lake Mead, Nevada, May 1999–May 2000.
[Units for all analytes in microgram per kilogram of fish tissue, wet weight. Abbreviations: HCB, hexachlorobenzene; HCH, hexaclorocyclohexine; o,p´-DDE, dichlorodiphenyldicloroethene; o,p´-DDD, dichlorodiphenyldicloroethane; PCA, pentachloroanisole; PCB, polychlorinated biphenyl; p,p´-DDD, 2,2-bis(p-chlorophenyl)-1, 1-dichloroethane; p,p´-DDE, 1.1-dichloro-2,2bis(p-chlorophenyl) ethylene; ND, not detected above reporting limit. Symbols: α, alpha; β, beta; δ, delta; γ, gamma; o, ortho, p, para]
| Sex | Site | Sample size | Percent lipid | Triflur-alin | α-HCH | HCB | PCA | β-HCH | γ-HCH | δ-HCH | Chlor-pyrifos | Dacthal | Octachloro-styrene | Heptachlor epoxide |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| May 1999 | ||||||||||||||
| Male | Las Vegas Bay | (14) | 8.5 | ND | 1.55 | 5.00 | 3.05 | ND | 3.55 | 5.75 | 0.55 | 3.75 | 1.70 | 0.30 |
| Male | Overton Arm | (15) | 7.0 | ND | ND | .01 | ND | ND | ND | ND | ND | 3.00 | ND | ND |
| Female | Las Vegas Bay | (16) | 8.3 | ND | 2.15 | 3.95 | 2.15 | 6.35 | 2.90 | 7.15 | ND | 3.40 | 1.15 | ND |
| Female | Overton Arm | (15) | 5.4 | ND | ND | .29 | ND | ND | ND | ND | ND | 3.40 | ND | ND |
| June 1999 | ||||||||||||||
| Male | Las Vegas Bay | (15) | 5.5 | ND | 0.68 | 0.42 | ND | 3.80 | ND | ND | 1.60 | 2.70 | ND | 0.62 |
| Male | Overton Arm | (14) | 6.0 | ND | ND | .73 | ND | ND | ND | ND | 1.45 | 3.45 | ND | ND |
| September 1999 | ||||||||||||||
| Male | Las Vegas Bay | (10) | 8.1 | 0.46 | ND | 2.64 | 0.32 | ND | ND | ND | 0.66 | 1.56 | 3.00 | ND |
| November 1999 | ||||||||||||||
| Male | Las Vegas Bay | (10) | 6.7 | 0.67 | 1.07 | 3.90 | 0.45 | 1.54 | 0.97 | 1.96 | 0.95 | 1.34 | 5.33 | ND |
| January 2000 | ||||||||||||||
| Male | Las Vegas Bay | (9) | 12.7 | ND | 1.15 | 2.00 | 0.81 | 3.24 | 1.84 | 1.87 | 0.95 | 1.68 | 1.81 | ND |
| March 2000 | ||||||||||||||
| Male | Las Vegas Bay | (10) | 11.5 | ND | 6.95 | 8.95 | 3.80 | 7.00 | 9.90 | 4.55 | 8.65 | 5.95 | 14.50 | ND |
| May 2000 | ||||||||||||||
| Male | Las Vegas Bay | (13) | 10.2 | ND | 8.50 | 7.10 | 1.60 | ND | 6.00 | ND | 5.50 | 5.00 | 12.00 | ND |
| Sex | Site | Sample size | Oxy-chlordane | trans-chlordane | o,p’-DDE | cis-chlordane | trans-nonachlor | p,p’-DDE | Dieldrin | o,p’-DDD | p,p’-DDD | cis-non-achlor | Total PCB | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| May 1999 | ||||||||||||||
| Male | Las Vegas Bay | (14) | 1.25 | 5.00 | 23.20 | 7.50 | 6.45 | 115.50 | 3.90 | 19.50 | 13.00 | 1.45 | 2,920.0 | |
| Male | Overton Arm | (15) | ND | .05 | ND | .37 | 1.00 | 12.00 | ND | ND | ND | .40 | 26.0 | |
| Female | Las Vegas Bay | (16) | .93 | 3.55 | 16.00 | 5.65 | 5.60 | 88.50 | ND | 14.50 | 13.00 | 2.15 | 187.5 | |
| Female | Overton Arm | (15) | ND | ND | ND | ND | ND | 4.80 | ND | ND | ND | ND | 9.5 | |
| June 1999 | ||||||||||||||
| Male | Las Vegas Bay | (15) | 1.00 | 1.10 | 0.96 | 1.70 | 2.20 | 50.00 | 1.40 | 7.90 | 2.20 | 1.10 | 156.0 | |
| Male | Overton Arm | (14) | .99 | .16 | ND | .49 | 1.50 | 14.50 | 1.20 | ND | ND | .19 | 23.1 | |
| September 1999 | ||||||||||||||
| Male | Las Vegas Bay | (10) | 0.10 | 0.97 | 8.08 | 1.36 | 3.22 | 87.95 | 1.25 | 2.57 | 5.27 | 0.71 | 176.5 | |
| November 1999 | ||||||||||||||
| Male | Las Vegas Bay | (10) | ND | 2.20 | 30.90 | 2.85 | 4.41 | 162.50 | 0.97 | 7.79 | 14.18 | 1.05 | 288.0 | |
| January 2000 | ||||||||||||||
| Male | Las Vegas Bay | (9) | ND | 0.66 | 5.30 | 0.97 | 2.28 | 103.00 | 0.96 | 1.54 | 5.19 | 0.51 | 290.0 | |
| March 2000 | ||||||||||||||
| Male | Las Vegas Bay | (10) | ND | 7.85 | 62.50 | 11.50 | 13.50 | 380.00 | 2.05 | 38.00 | ND | 4.80 | 480.5 | |
| May 2000 | ||||||||||||||
| Male | Las Vegas Bay | (13) | ND | 6.60 | 32.00 | 13.00 | 14.00 | 410.00 | ND | ND | ND | 4.40 | 392.0 | |
U.S. Department of the Interior | U.S. Geological Survey
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