Reproductive Ecology and Body Burden of Resident ... - The Love Lab

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Iron. Iron concentrations in the three fish species did not exhibit significant HabType*TL interactions (data not shown) nor significant associations with TL (data not shown). However, iron concentrations differed significantly between HabTypes for kelp bass, but not for kelp rockfish and Pacific sanddab (Figure 11). On average, iron concentrations in kelp bass were lower at oil platforms (mean, 49. µg/g; 95% confidence interval, 29.-83. µg/g) than at natural areas (mean, 240. µg/g; 95% confidence interval, 150.-390. µg/g). Lead. None of the three fish species exhibited a significant HabType*TL interaction for lead (data not shown). In kelp bass, lead concentrations were not significantly associated with TL (data not shown). However, lead concentrations were significantly associated with TL in kelp rockfish (F 1,22.0 =4.93, P=0.037) and Pacific sanddab (F 1,94.5 =11.79, P
Manganese Figure 14. Comparisons of manganese concentrations (least-squares means and 95% confidence intervals) in whole-fish samples of kelp bass, kelp rockfish, and Pacific sanddab from two HabTypes (oil platforms and natural areas). Also shown are F statistics and significance levels. Total length is reported if the F statistic was computed from analysis of covariance. Mercury F 1,16 =0.01, P=0.9204 For TL=34.4 cm F 1,15 =5.08, P=0.0396 For TL=25.4 cm F 1,5.7 =16.00, P=0.0078 For TL=25.4 cm F 1,14.8 =5.71, P=0.0206 F 1,8.0 =0.13, P=0.7315 For TL=19.8 cm F 1,8.2 =0.73, P=0.4155 Figure 15. Comparisons of mercury concentrations (least-squares means and 95% confidence intervals) in whole-fish samples of kelp bass, kelp rockfish, and Pacific sanddab from two HabTypes (oil platforms and natural areas). Also shown are F statistics and significance levels. Total length is reported if the F statistic was computed from analysis of covariance. Manganese. Among the three fish species, manganese concentrations did not exhibit significant HabType*TL interactions (data not shown), and a significant TL effect was detected in kelp rockfish (F 1,74.1 =8.51, P=0.004) but not in the other two species (data not shown). For kelp rockfish, manganese was inversely associated with TL, with concentrations generally decreasing by 2.4% (95% confidence interval, -4.1% to -0.8%) for each 1.0- cm increase in TL. Manganese concentrations did not differ significantly between HabTypes for kelp bass and Pacific sanddab (Figure 14). However, after controlling for TL, manganese concentrations in kelp rockfish exhibited a significant difference for Habtype (Figure 14), with lower concentrations occurring in fish from oil platforms (mean, 1.4 µg/g; 95% confidence interval, 1.2-1.8 µg/g) than from natural areas (mean, 2.3 µg/g; 95% confidence interval, 1.9-2.8 µg/g). Mercury. None of the three fish species exhibited a significant HabType*TL interaction for mercury (data not shown). However, mercury concentrations in all three species varied with TL (for kelp bass, F 1,15 =5.08, P=0.040; for kelp rockfish, F 1,38.0 =19.58, P
Page 1: Pacific Outer Continental Shelf Reg
Page 4 and 5: Disclaimer This report had been rev
Page 6 and 7: TECHNICAL SUMMARY Study Title: Repr
Page 8 and 9: interactions between total length (
Page 10 and 11: REPRODUCTIVE ECOLOGY AND BODY BURDE
Page 12 and 13: tometry. The determination of selen
Page 14 and 15: Task 3: A Histological Examination
Page 16 and 17: Task 1: Whole-body Concentrations o
Page 18 and 19: Study Area and Methods The study ar
Page 20 and 21: Sample Collection Fish species cons
Page 22 and 23: to confirm the calibration status o
Page 24 and 25: variation in elemental concentratio
Page 26 and 27: Table 2. Summary of fish vital stat
Page 28 and 29: Table 3. Variation in total length,
Page 30 and 31: Cadmium. Cadmium concentrations in
Page 34 and 35: Nickel. None of the three fish spec
Page 36 and 37: Strontium. None of the three fish s
Page 38 and 39: Vanadium. Kelp bass and kelp rockfi
Page 40 and 41: came from an oil platform (PL4, 3 o
Page 42 and 43: Table 4. Comparisons of selected tr
Page 44 and 45: Literature Cited Allen, M.J., D.W.
Page 46 and 47: May, T.W., J.F. Fairchild, J.D. Pet
Page 48 and 49: Task 2: Otolith Elemental Signature
Page 50 and 51: sider the ecology of species of int
Page 52 and 53: Table 1. Characteristics of the 18
Page 54 and 55: an undetectable amount of an isotop
Page 56 and 57: Table 2. Two-way ANOVA comparing tr
Page 58 and 59: G 5.0 Kelp rockfish H 20 Platform N
Page 60 and 61: Table 4A. Correlations of predictor
Page 62 and 63: CDA generated a model discriminatin
Page 64 and 65: Pacific sanddab otolith elemental s
Page 66 and 67: A 0.034 Pacific Sanddab B 0.10 Plat
Page 68 and 69: Table 7. One-way ANOVA comparing tr
Page 70 and 71: Table 9A. Correlations of six predi
Page 72 and 73: Kelp rockfish Otolith (element/Ca (
Page 74 and 75: Discussion Results from univariate
Page 76 and 77: of non-drilling associated discharg
Page 78 and 79: ture and salinity on otolith elemen
Page 80 and 81: Miller, J. A and A. L. Shanks. 2004
Page 82 and 83:
Appendix 2. Seawater element-to-cal
Page 84 and 85:
Appendix 3. Seawater element-to-cal
Page 86 and 87:
Task 3: A Histological Examination
Page 88 and 89:
Table 1. Details of Pacific sanddab
Page 90 and 91:
Figure 2. A) Ovary of Pacific sandd
Page 92 and 93:
Literature Cited Allen, M. J. 1982.
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